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			634 lines
		
	
	
		
			42 KiB
		
	
	
	
		
			Markdown
		
	
	
	
| # Awesome Sysadmin
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| **A curated list of amazingly awesome open source sysadmin resources.** You can check out [other awesome lists](https://github.com/n1trux/awesome-awesomeness) as well. Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
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| 
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| * [Awesome Sysadmin](#awesome-sysadmin)
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|   * [Automation](#automation)
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|   * [Backups](#backups)
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|   * [ChatOps](#chatops)
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|   * [Cloning](#cloning)
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|   * [Cloud Computing](#cloud-computing)
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|   * [Cloud Storage](#cloud-storage)
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|   * [Code Review](#code-review)
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|   * [Collaborative Software](#collaborative-software)
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|   * [Configuration Management Database](#configuration-management-database)
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|   * [Configuration Management](#configuration-management)
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|   * [Continuous Integration & Continuous Deployment](#continuous-integration--continuous-deployment)
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|   * [Distributed Filesystems](#distributed-filesystems)
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|   * [DNS](#dns)
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|   * [Editors](#editors)
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|   * [Hosting Control Panels](#hosting-control-panels)
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|   * [IT Asset Management](#it-asset-management)
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|   * [LDAP](#ldap)
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|   * [Log Management](#log-management)
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|   * [Mail Clients](#mail-clients)
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|   * [Mail Servers](#mail-servers)
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|   * [Monitoring](#monitoring)
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|   * [Metric & Metric Collection](#metric--metric-collection)
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|   * [Network Configuration Management](#network-configuration-management)
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|   * [Newsletter](#newsletters)
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|   * [NoSQL](#nosql)
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|   * [Packaging](#packaging)
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|   * [Queuing](#queuing)
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|   * [RDBMS](#rdbms)
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|   * [Security](#security)
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|   * [Service Discovery](#service-discovery)
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|   * [Software Containers](#software-containers)
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|   * [SSH](#ssh)
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|   * [Statistics](#statistics)
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|   * [Status Pages](#status-pages)
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|   * [Ticketing systems](#ticketing-systems)
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|   * [Troubleshooting](#troubleshooting)
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|   * [Project Management](#project-management)
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|   * [Version control](#version-control)
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|   * [Virtualization](#virtualization)
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|   * [VPN](#vpn)
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|   * [XMPP](#xmpp)
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|   * [Web](#web)
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|   * [Wikis](#wikis)
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| * [Resources](#resources)
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|   * [Blogs](#blogs)
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|   * [Books](#books)
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|   * [Newsletters](#newsletters)
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|   * [Repositories](#repositories)
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|   * [Websites](#websites)
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| 
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| ## Automation
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| *Automation build.*
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| 
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| * [Apache Ant](https://ant.apache.org/) - Automation build tool, similar to make, written in Java.
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| * [Apache Maven](http://maven.apache.org/) - Build automation tool mainly for Java.
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| * [GNU Make](http://www.gnu.org/software/make/) - The most popular automation build tool for many purposes.
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| * [Gradle](http://gradle.org/) - Another open source build automation system.
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| 
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| ## Backups
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| *Backup software.*
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| 
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| * [Amanda](http://www.amanda.org/) - Client-server model backup tool.
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| * [Attic](https://attic-backup.org) - A deduplicating backup program written in Python.
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| * [Bacula](http://www.bacula.org) - Another Client-server model backup tool.
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| * [Bareos](http://www.bareos.org) - A fork of Bacula backup tool.
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| * [Backupninja](https://labs.riseup.net/code/projects/backupninja) - Lightweight, extensible meta-backup system.
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| * [Backuppc](http://backuppc.sourceforge.net/) - Client-server model backup tool with file pooling scheme.
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| * [Brebis](http://brebisproject.org) - A fully automated backup checker
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| * [Burp](http://burp.grke.org/) - Network backup and restore program.
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| * [Duplicity](http://duplicity.nongnu.org/) - Encrypted bandwidth-efficient backup using the rsync algorithm.
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| * [Lsyncd](https://github.com/axkibe/lsyncd) - File Monitor which spawns a process to synchronize the changes (rsync by default).
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| * [Rsnapshot](http://www.rsnapshot.org/) - Filesystem Snapshotting Utility.
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| * [SafeKeep](http://safekeep.sourceforge.net/) - Centralized pull-based backup using `rdiff-backup`.
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| * [Snebu](http://www.snebu.com/) – Snapshot backup with global multi-client deduplication and transparent compression.
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| * [TarSnap](https://www.tarsnap.com/) - Secure backup service with an open-source client.
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| * [UrBackup](http://www.urbackup.org/) - Another client-server backup system.
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| * [DREBS](https://github.com/dojo4/drebs) - AWS EBS backup script that supports strategies.
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| * [ZBackup](http://zbackup.org/) - A versatile deduplicating backup tool.
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| 
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| ## ChatOps
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| *Conversation-driven development and management. See http://www.reddit.com/r/chatops for more information.*
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| 
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| * [Eggdrop](http://www.eggheads.org/) - the world's most popular Open Source IRC bot, designed for flexibility and ease of use, and is freely distributable under the GNU GPL.
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| * [Err](http://errbot.net/) - a plugin based chatbot designed to be easily deployable, extensible and maintainable.
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| * [Hubot](https://hubot.github.com/) - A customizable, life embetterment robot.
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| * [Lazlo](https://github.com/djosephsen/lazlo) - A chatops automation framework in Go.
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| * [Lita](https://www.lita.io/) - A robot companion for your company's chat room.
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| 
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| ## Cloning
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| *Cloning software.*
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| 
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| * [Clonezilla](http://clonezilla.org/) - Partition and disk imaging/cloning program.
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| * [Fog](http://www.fogproject.org/) - Another computer cloning solution.
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| * [Redo Backup](http://redobackup.org/) - Easy Backup, Recovery and Restore.
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| 
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| ## Cloud Computing
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| 
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| * [AppScale](http:/github.com/AppScale/appscale) - Open source cloud software with Google App Engine compatibility.
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| * [Archipel](http://archipelproject.org/) - Manage and supervise virtual machines using Libvirt.
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| * [CloudStack](http://cloudstack.apache.org/) - Cloud computing software for creating, managing, and deploying infrastructure cloud services.
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| * [Cobbler](http://www.cobblerd.org/) - Cobbler is a Linux installation server that allows for rapid setup of network installation environments.
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| * [Eucalyptus](https://www.eucalyptus.com/) - Open source private cloud software with AWS compatibility.
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| * [Mesos](http://mesos.apache.org/) - Develop and run resource-efficient distributed systems.
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| * [OpenNebula](http://opennebula.org/) - An user-driven cloud management platform for sysadmins and devops.
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| * [OpenStack](https://www.openstack.org/) - Open source software for building private and public clouds.
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| * [The Foreman](http://theforeman.org/) - Foreman is a complete lifecycle management tool for physical and virtual servers. FOSS.
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| 
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| ## Cloud Orchestration
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| 
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| * [BOSH](http://docs.cloudfoundry.org/bosh/) -  IaaS orchestration platform originally written for deploying and managing Cloud Foundry PaaS, but also useful for general purpose distributed systems.
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| * [Cloudify](http://www.getcloudify.org/) -  Open source TOSCA-based cloud orchestration software platform written in Python and YAML.
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| * [Juju](https://juju.ubuntu.com/) - Cloud orechestration tool which manages services as charms, YAML configuration and deployment script bundles.
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| * [MCollective](http://puppetlabs.com/mcollective) - Ruby framework to manage server orchestration, developed by Puppet labs.
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| * [Overcast](http://andrewchilds.github.io/overcast/) - Deploy VMs across different cloud providers, and run commands and scripts across any or all of them in parallel via SSH.
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| * [Rundeck](http://rundeck.org/) - Simple orchestration tool.
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| * [Salt](http://www.saltstack.com/) - Fast, scalable and flexible systems management software written in Python/ZeroMQ.
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| * [StackStorm](http://stackstorm.com/) - Event Driven Operations and ChatOps platform for infrastructure management. Written in Python
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| 
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| ## Cloud Storage
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| 
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| * [git-annex assistant](http://git-annex.branchable.com/assistant/) - A synchronised folder on each of your OSX and Linux computers, Android devices, removable drives, NAS appliances, and cloud services.
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| * [ownCloud](https://owncloud.org) - Provides universal access to your files via the web, your computer or your mobile devices.
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| * [Seafile](http://seafile.com) - Another Open Source Cloud Storage solution.
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| * [SparkleShare](http://sparkleshare.org/) - Provides cloud storage and file synchronization services. By default, it uses Git as a storage backend.
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| * [Swift](http://docs.openstack.org/developer/swift/) - A highly available, distributed, eventually consistent object/blob store.
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| * [Syncthing](http://syncthing.net/) - Open Source system for private, encrypted and authenticated distribution of data.
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| 
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| ## Code Review
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| *Web Based collaborative code review system.*
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| 
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| * [Gerrit](https://code.google.com/p/gerrit/) - Based on the Git version control, it facilitates software developers to review modifications to the source code and approve or reject those changes.
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| * [Phabricator](http://phabricator.org/) - Code review tool build by facebook and used by WikiMedia, FB, dropbox etc. Comes with an integrated wiki, bug tracker, VC integration and a CLI tool called arcanist.
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| * [Review Board](https://www.reviewboard.org/) - Available as free software under the MIT License.
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| 
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| ## Collaborative Software
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| *Collaborative software or groupware suites.*
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| 
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| * [Citadel/UX](http://www.citadel.org/) - Collaboration suite (messaging and groupware) that is descended from the Citadel family of programs.
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| * [EGroupware](http://www.egroupware.org/) - Groupware software written in PHP.
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| * [Horde Groupware](http://www.horde.org/apps/groupware) - PHP based collaborative software suite that includes email, calendars, wikis, time tracking and file management.
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| * [Kolab](https://www.kolab.org) - Another groupware suite.
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| * [SOGo](https://www.sogo.nu/) - Collaborative software server with a focus on simplicity and scalability.
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| * [Zimbra](https://www.zimbra.com/community/) - Collaborative software suite, that includes an email server and web client.
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| 
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| ## Configuration Management Database
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| *Configuration management database (CMDB) software.*
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| 
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| * [i-doit](http://www.i-doit.org/) - Open Source IT Documentation and CMDB.
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| * [iTop](http://www.combodo.com/-Overview-.html) - Complete open source, ITIL, web based service management tool.
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| * [Ralph](https://github.com/allegro/ralph) - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
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| * [Sicekit](https://github.com/sicekit/sicekit) - The systems & infrastructure encyclopaedia toolkit (based on mediawiki).
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| * [Clusto](https://github.com/clusto/clusto) - Helps you keep track of your inventory, where it is, how it's connected, and provides an abstracted interface for interacting with the elements of the infrastructure.
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| * [Collins](http://tumblr.github.io/collins) - At Tumblr, it's the infrastructure source of truth and knowledge.
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| 
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| ## Configuration Management
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| *Configuration management tools.*
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| 
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| * [Ansible](http://www.ansibleworks.com/) -  It's written in Python and manages the nodes over SSH.
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| * [CFEngine](http://cfengine.com/) - Lightweight agent system. Configuration state is specified via a declarative language.
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| * [Chef](http://www.opscode.com/chef/) - It's written in Ruby and Erlang and uses a pure-Ruby DSL.
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| * [Pallet](http://palletops.com/) - Infrastructure definition, configuration and management via a Clojure DSL.
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| * [Puppet](http://puppetlabs.com/) - It's written in Ruby and uses Puppet's declarative language or a Ruby DSL.
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| * [Salt](http://www.saltstack.com/) - It's written in Python.
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| * [Slaughter](http://steve.org.uk/Software/slaughter/) - It's written in Perl.
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| 
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| ## Build and software organization tools
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| *Build and software organization tools.*
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| 
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| * [EasyBuild](https://easybuild.readthedocs.org/en/latest/) - EasyBuild builds software and modulefiles for High Performance Computing (HPC) systems in an efficient way.
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| * [environment-modules Tcl](http://en.wikipedia.org/wiki/Environment_Modules_%28software%29) - .
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| * [environment-modules Lmod](https://www.tacc.utexas.edu/research-development/tacc-projects/lmod) - Lmod is a Lua based module system that easily handles the MODULEPATH Hierarchical problem.
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| * [environment-modules Tcl/C](http://modules.sourceforge.net/) - The Environment Modules package provides for the dynamic modification of a user's environment via modulefiles.
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| * [HPCBIOS](hpcbios.readthedocs.org/en/latest/) - HPCBIOS is an effort to setup a common, well-documented and reproducible, environment spanning across multiple HPC systems & sites, *inclusive* of documentation.
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| 
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| ## Continuous Integration & Continuous Deployment
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| *Continuous integration/deployment software.*
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| 
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| * [Buildbot](http://buildbot.net/) - Python-based toolkit for continuous integration.
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| * [Drone](https://github.com/drone/drone) - Continuous integration server built on Docker and configured using YAML files.
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| * [GitLab CI](https://www.gitlab.com/gitlab-ci/) - Based off of ruby. They also provide GitLab, which manages git repositories.
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| * [Go](http://www.go.cd/) - Open source continuous delivery server.
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| * [Jenkins](http://jenkins-ci.org/) - An extendable open source continuous integration server.
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| 
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| ## Deployment Automation
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| *Tools and scripts to support deployments to your servers.*
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| 
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| * [Capistrano](http://www.capistranorb.com) - Deploy your application to any number of machines simultaneously, in sequence or as a rolling set via SSH (rake based).
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| * [Fabric](http://www.fabfile.org/) - Python library and cli tool for streamlining the use of SSH for application deployment or systems administration tasks.
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| * [Mina](http://nadarei.co/mina/) - Really fast deployer and server automation tool (rake based).
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| * [Rocketeer](http://rocketeer.autopergamene.eu/) - PHP task runner and deployment tool.
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| * [Vlad the Deployer](http://rubyhitsquad.com/Vlad_the_Deployer.html) - Deployment automation (rake based).
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| 
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| ## Distributed Filesystems
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| *Network distributed filesystems.*
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| 
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| * [Ceph](http://ceph.com/) - Distributed object store and file system.
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| * [DRBD](http://www.drbd.org/) - Distributed Replicated Block Device.
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| * [LeoFS](http://leo-project.net) - Unstructured object/data storage and a highly available, distributed, eventually consistent storage system.
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| * [GlusterFS](http://www.gluster.org/) - Scale-out network-attached storage file system.
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| * [HDFS](http://hadoop.apache.org/) - Distributed, scalable, and portable file-system written in Java for the Hadoop framework.
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| * [Lustre](http://lustre.opensfs.org/) -  A type of parallel distributed file system, generally used for large-scale cluster computing.
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| * [MooseFS](http://www.moosefs.org/) - Fault tolerant, network distributed file system.
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| * [MogileFS](http://mogilefs.org/) - Application level, network distributed file system.
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| * [OpenAFS](http://www.openafs.org/) - Distributed network file system with read-only replicas and multi-OS support.
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| * [TahoeLAFS](https://tahoe-lafs.org/trac/tahoe-lafs) - secure, decentralized, fault-tolerant, peer-to-peer distributed data store and distributed file system.
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| * [XtreemFS](http://www.xtreemfs.org/) - XtreemFS is a fault-tolerant distributed file system for all storage needs.
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| 
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| ## DNS
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| *DNS servers.*
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| 
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| * [Bind](https://www.isc.org/downloads/bind/) - The most widely used name server software.
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| * [djbdns](http://cr.yp.to/djbdns.html) - A collection of DNS applications, including tinydns.
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| * [Designate](https://wiki.openstack.org/wiki/Designate) - DNS REST API that support several DNS servers as its backend.
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| * [dnsmasq](http://www.thekelleys.org.uk/dnsmasq/doc.html) - A lightweight service providing DNS, DHCP and TFTP services to small-scale networks.
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| * [Knot](https://www.knot-dns.cz/) - High performance authoritative-only DNS server.
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| * [NSD](http://www.nlnetlabs.nl/projects/nsd/) - Authoritative only, high performance, simple name server.
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| * [PowerDNS](https://www.powerdns.com/) - DNS server with a variety of data storage back-ends and load balancing features.
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| * [Unbound](http://unbound.net/) - Validating, recursive, and caching DNS resolver.
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| * [Yadifa](http://yadifa.eu/) - Lightweight authoritative Name Server with DNSSEC capabilities powering the .eu top-level domain.
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| 
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| ## Editors
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| *Open source code editors.*
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| 
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| * [Atom](https://atom.io/) - A hackable text editor from Github.
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| * [Brackets](http://brackets.io/) - Open source code editor for web designers and front-end developers.
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| * [Eclipse](http://eclipse.org/) - IDE written in Java with an extensible plug-in system.
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| * [Geany](http://www.geany.org/) - GTK2 text editor.
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| * [GNU Emacs](http://www.gnu.org/software/emacs/) - An extensible, customizable text editor-and more.
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| * [Haroopad](http://pad.haroopress.com/) - Markdown editor with live preview.
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| * [ICEcoder](http://icecoder.net) - Code editor awesomeness, built with common web languages.
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| * [jotgit](https://github.com/jdleesmiller/jotgit) - Git-backed real-time collaborative code editing.
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| * [Light Table](http://www.lighttable.com/) - The next generation code editor.
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| * [Lime](http://limetext.org/) - Aims to provide an open source solution to Sublime Text
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| * [TextMate](https://github.com/textmate/textmate/) - A graphical text editor for OS X.
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| * [Vim](http://www.vim.org) - A highly configurable text editor built to enable efficient editing.
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| 
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| ## Hosting Control Panels
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| *Web hosting control panels*
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| 
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| * [Ajenti](http://ajenti.org/) - Control panel for Linux and BSD.
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| * [Feathur](http://feathur.com) - VPS Provisioning and Management Software.
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| * [Froxlor](http://www.froxlor.org/) - Easy to use panel for Linux with Nginx and PHP-FPM support.
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| * [ISPConfig](http://www.ispconfig.org) - Hosting control panel for Linux.
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| * [Sentora](http://sentora.org/) - Control panel for Linux, BSD, and Windows based on ZPanel.
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| * [VestaCP](http://www.vestacp.com/) - Hosting panel for Linux but with Nginx.
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| * [Virtualmin](http://www.virtualmin.com/) - Control panel for Linux based on webmin.
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| * [Webmin](http://www.webmin.com/) - Linux server control panel.
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| * [ZPanel](http://www.zpanelcp.com/) - Control panel for Linux, BSD, and Windows.
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| 
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| ## IT Asset Management
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| *IT Assets Management software.*
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| 
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| * [GLPI](http://www.glpi-project.org/spip.php?lang=en) - Information Resource-Manager with an additional Administration Interface.
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| * [OCS Inventory NG](http://www.ocsinventory-ng.org/en/) - Enables users to inventory their IT assets.
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| * [RackTables](http://racktables.org/) - Datacenter and server room asset management like document hardware assets, network addresses, space in racks, networks configuration.
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| * [Ralph](https://github.com/allegro/ralph) - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
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| * [Snipe IT](http://snipeitapp.com/) - Asset & license management software.
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| 
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| ## LDAP
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| *LDAP servers.*
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| 
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| * [389 Directory Server](http://port389.org) - Developed by Red Hat.
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| * [Apache Directory Server](http://directory.apache.org/) - Apache Software Foundation project written in Java.
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| * [Fusion Directory](http://www.fusiondirectory.org) - Improve the Management of the services and the company directory based on OpenLDAP.
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| * [OpenDJ](http://opendj.forgerock.org/) - Fork of OpenDS.
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| * [OpenDS](https://opends.java.net/) - Another directory server written in Java.
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| * [OpenLDAP](http://openldap.org/) - Developed by the OpenLDAP Project.
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| 
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| ## Log Management
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| *Log management tools: collect, parse, visualize ...*
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| 
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| * [Elasticsearch](http://www.elasticsearch.org/) - A Lucene Based Document store mainly used for log indexing, storage and analysis.
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| * [Fluentd](http://www.fluentd.org/) - Log Collector and Shipper.
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| * [Flume](https://flume.apache.org/) - Distributed log collection and aggregation system.
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| * [Graylog2](http://graylog2.org/) - Pluggable Log and Event Analysis Server with Alerting options.
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| * [Heka](http://hekad.readthedocs.org/en/latest/) - Stream processing system which may be used for log aggregation.
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| * [Kibana](http://www.elasticsearch.org/overview/kibana/) - Visualize logs and time-stamped data.
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| * [Logstash](http://logstash.net/) - Tool for managing events and logs.
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| * [Octopussy](http://www.octopussy.pm) - Log Management Solution (Visualize / Alert / Report).
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| 
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| ## Mail Clients
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| 
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| * [Claws Mail](http://www.claws-mail.org/) - Old school email client (and news reader), based on GTK+.
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| * [Mutt](http://www.mutt.org/) - Small but very powerful text-based mail client.
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| * [Thunderbird](https://www.mozilla.org/de/thunderbird/) - Free email application that's easy to set up and customize.
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| 
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| ### Webmail
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| *Webmail applications.*
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| 
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| * [Mailpile](https://www.mailpile.is/) - A modern, fast web-mail client with user-friendly encryption and privacy features.
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| * [Roundcube](http://roundcube.net/) - Browser-based IMAP client with an application-like user interface.
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| * [SquirrelMail](http://squirrelmail.org) - Another browser-based IMAP client.
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| 
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| ## Mail Servers
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| *Software for setting up mail servers.*
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| 
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| ### MDA (IMAP/POP3)
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| *Mail Delivery Agents (IMAP/POP3 software).*
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| 
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| * [Courier IMAP/POP3](http://www.courier-mta.org/imap/) - Fast, scalable, enterprise IMAP and POP3 server.
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| * [Cyrus IMAP/POP3](http://cyrusimap.org/) - Intended to be run on sealed servers, where normal users are not permitted to log in.
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| * [Dovecot](http://www.dovecot.org/) - IMAP and POP3 server written primarily with security in mind.
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| * [Qpopper](http://www.eudora.com/products/unsupported/qpopper/) - One of the oldest and most popular server implementations of POP3.
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| 
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| ### MTA (SMTP)
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| *Mail Transfer Agents (SMTP servers).*
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| 
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| * [Exim](http://www.exim.org/) - Message transfer agent (MTA) developed at the University of Cambridge.
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| * [Haraka](http://haraka.github.io/) - A high-performance, pluginable SMTP server written in JavaScript.
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| * [MailCatcher](http://mailcatcher.me/) - Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development.
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| * [Maildrop](https://github.com/m242/maildrop) - Open Source disposable email SMTP server, also useful for development.
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| * [OpenSMTPD](https://opensmtpd.org/) - Secure SMTP server implementation from the OpenBSD project.
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| * [Postfix](http://www.postfix.org/) - Fast, easy to administer, and secure Sendmail replacement.
 | ||
| * [Qmail](http://cr.yp.to/qmail.html) - Secure Sendmail replacement.
 | ||
| * [Sendmail](http://www.sendmail.com/sm/open_source/) - Message transfer agent (MTA).
 | ||
| 
 | ||
| ### complete solutions
 | ||
| *Software for simple deployment of a mail server, e.g. for inexperienced or impatient admins.*
 | ||
| 
 | ||
| * [Mail-in-a-Box](https://mailinabox.email/) - Take back control of your email with this easy-to-deploy mail server in a box.
 | ||
| * [iRedMail](http://www.iredmail.org/) - Full-featured mail server solution based on Postfix and Dovecot.
 | ||
| 
 | ||
| 
 | ||
| ## Monitoring
 | ||
| *Monitoring software.*
 | ||
| 
 | ||
| * [Cacti](http://www.cacti.net) - Web-based network monitoring and graphing tool.
 | ||
| * [Cabot](http://cabotapp.com/) - Monitoring and alerts, similar to PagerDuty.
 | ||
| * [check_mk](http://mathias-kettner.com/check_mk.html) - Collection of extensions for Nagios.
 | ||
| * [Dash](https://github.com/afaqurk/linux-dash) - A low-overhead monitoring web dashboard for a GNU/Linux machine.
 | ||
| * [Icinga](https://www.icinga.org/) - Fork of Nagios.
 | ||
| * [LibreNMS](https://github.com/librenms/librenms/) - fork of Observium.
 | ||
| * [Monit](http://mmonit.com/monit/#home) - Small Open Source utility for managing and monitoring Unix systems.
 | ||
| * [Munin](http://munin-monitoring.org/) - Networked resource monitoring tool.
 | ||
| * [Naemon](http://www.naemon.org/) - Network monitoring tool based on the Nagios 4 core with performance enhancements and new features.
 | ||
| * [Nagios](http://www.nagios.org/) - Computer system, network and infrastructure monitoring software application.
 | ||
| * [Node-Bell](https://github.com/eleme/node-bell) - Real-time anomalies detection for periodic time series, metrics monitor.
 | ||
| * [Observium](http://www.observium.org/) - SNMP monitoring for servers and networking devices. Runs on linux.
 | ||
| * [OMD](http://omdistro.org/) - The Open Monitoring Distribution.
 | ||
| * [Opsview](http://www.opsview.com/solutions/core) - Based on Nagios 4, Opsview Core is ideal for small IT and test environments.
 | ||
| * [Riemann](http://riemann.io/) - Flexible and fast events processor allowing complex events/metrics analysis.
 | ||
| * [Sensu](http://sensuapp.org/) - Open source monitoring framework.
 | ||
| * [Sentry](https://getsentry.com/) - Application monitoring, event logging and aggregation.
 | ||
| * [Shinken](http://www.shinken-monitoring.org/) - Another monitoring framework.
 | ||
| * [Thruk](http://www.thruk.org/) - Multibackend monitoring web interface with support for Naemon, Nagios, Icinga and Shinken.
 | ||
| * [Xymon](http://www.xymon.com/) - Network monitoring inspired by Big Brother.
 | ||
| * [Zabbix](http://www.zabbix.com/) - Enterprise-class software for monitoring of networks and applications.
 | ||
| * [Zenoss](http://community.zenoss.org) - Application, server, and network management platform based on Zope.
 | ||
| 
 | ||
| ## Metric & Metric Collection
 | ||
| *Metric gathering and display software.*
 | ||
| 
 | ||
| * [Collectd](http://collectd.org/) - System statistic collection daemon.
 | ||
| * [Collectl](http://collectl.sourceforge.net/) - High precision system performance metrics collecting tool.
 | ||
| * [Dashing](http://dashing.io/) - Ruby gem that allows for rapid statistical dashboard development. An all HTML5 approach allows for big screen displays in data centers or conference rooms.
 | ||
| * [Diamond](https://github.com/BrightcoveOS/Diamond) - Python based statistic collection daemon.
 | ||
| * [Facette](http://facette.io) - Time series data visualization and graphing software written in Go.
 | ||
| * [Freeboard](https://github.com/Freeboard/freeboard) - A damn-sexy front-end real-time dashboard. Transforms raw JSON into delicious UI.
 | ||
| * [Ganglia](http://ganglia.sourceforge.net/) - High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
 | ||
| * [Grafana](http://grafana.org/) - A Graphite & InfluxDB Dashboard and Graph Editor.
 | ||
| * [Graphite](http://graphite.readthedocs.org/en/latest/) - Open source scalable graphing server.
 | ||
| * [InfluxDB](http://influxdb.com/) - Open source distributed time series database with no external dependencies.
 | ||
| * [KairosDB](https://code.google.com/p/kairosdb/) - Fast distributed scalable time series database, fork of OpenTSDB 1.x.
 | ||
| * [OpenTSDB](http://opentsdb.net/) - Store and server massive amounts of time series data without losing granularity.
 | ||
| * [Prometheus](http://prometheus.io/) - An open-source service monitoring system and time series database.
 | ||
| * [RRDtool](http://oss.oetiker.ch/rrdtool/) - Open source industry standard, high performance data logging and graphing system for time series data.
 | ||
| * [Statsd](https://github.com/etsy/statsd/) - Application statistic listener.
 | ||
| 
 | ||
| ## Network Configuration Management
 | ||
| *Network configuration management tools.*
 | ||
| 
 | ||
| * [GestióIP](http://www.gestioip.net/) - An automated web based IPv4/IPv6 IP Address Management tool.
 | ||
| * [Oxidized](https://github.com/ytti/oxidized) - A modern take on network device configuration monitoring with web interface and GIT storage.
 | ||
| * [RANCID](http://www.shrubbery.net/rancid/) - Monitors network device's configuration and maintain history of changes.
 | ||
| * [rConfig](http://www.rconfig.com/) - Another network device configuration management tool.
 | ||
| * [trigger](https://github.com/trigger/trigger) - Robust network automation toolkit written in Python.
 | ||
| 
 | ||
| ## Newsletters
 | ||
| *Newsletter software.*
 | ||
| 
 | ||
| * [DadaMail](http://dadamailproject.com/) - Mailing List Manager, written in Perl.
 | ||
| * [phpList](http://www.phplist.com/) - Newsletter manager written in PHP.
 | ||
| 
 | ||
| ## NoSQL
 | ||
| *NoSQL databases.*
 | ||
| 
 | ||
| * Column-Family
 | ||
|   * [Apache HBase](http://hbase.apache.org/) - Hadoop database, a distributed, big data store.
 | ||
|   * [Cassandra](http://cassandra.apache.org/) - Distributed DBMS designed to handle large amounts of data across many servers.
 | ||
|   * [Hypertable](http://hypertable.org/) - C++ based BigTable-like DBMS, communicates through Thrift and runs either as stand-alone or on distributed FS such as Hadoop.
 | ||
| * Document Store
 | ||
|   * [CouchDB](http://couchdb.apache.org/) - Ease of use, with multi-master replication document-oriented database system.
 | ||
|   * [ElasticSearch](http://www.elasticsearch.org/) - Java based database, popular with log aggregation, and email archiving projects.
 | ||
|   * [MongoDB](http://www.mongodb.org/) - Another document-oriented database system.
 | ||
|   * [RavenDB](http://ravendb.net/) - Document based database with ACID/Transactional features.
 | ||
|   * [RethinkDB](http://www.rethinkdb.com/) - Open source distributed document store database, focuses on JSON.
 | ||
| * Graph
 | ||
|   * [FlockDB](https://github.com/twitter/flockdb) - Twitter's distributed, fault-tolerant graph database.
 | ||
|   * [Neo4j](http://www.neo4j.org/) - Open source graph database.
 | ||
| * Key-Value
 | ||
|   * [LevelDB](https://github.com/google/leveldb) - Google's high performance key/value database.
 | ||
|   * [Redis](http://redis.io/) - Networked, in-memory, key-value data store with optional durability.
 | ||
|   * [Riak](http://basho.com/riak/) - Another fault-tolerant key-value NoSQL database.
 | ||
| 
 | ||
| Comparison of NoSQL servers: http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis
 | ||
| 
 | ||
| ## Packaging
 | ||
| 
 | ||
| * [fpm](https://github.com/jordansissel/fpm) - Versatile multi format package creator.
 | ||
| * [omnibus-ruby](https://github.com/opscode/omnibus-ruby) - Full stack, cross distro packaging software (Ruby).
 | ||
| * [packman](http://packman.readthedocs.org) - Full stack, cross distro packaging software (Python).
 | ||
| * [tito](https://github.com/dgoodwin/tito) - Builds RPMs for git-based projects.
 | ||
| 
 | ||
| ## Queuing
 | ||
| 
 | ||
| * [BeanstalkD](http://kr.github.io/beanstalkd/) - A simple, fast work queue.
 | ||
| * [Gearman](http://gearman.org/) - Fast multi-language queuing/job processing platform.
 | ||
| * [Kafka](http://kafka.apache.org) - Extremely high performance publish/subscribe message system.
 | ||
| * [NSQ](http://nsq.io/) - A realtime distributed messaging platform.
 | ||
| * [RabbitMQ](http://www.rabbitmq.com/) - Robust, fully featured, cross distro queuing system.
 | ||
| * [ZeroMQ](http://zeromq.org/) - Lightweight queuing system.
 | ||
| 
 | ||
| ## RDBMS
 | ||
| *Relational DBMS.*
 | ||
| 
 | ||
| * [Firebird](http://www.firebirdsql.org/) - True universal open source database.
 | ||
| * [Galera](http://galeracluster.com/) - Galera Cluster for MySQL is an easy-to-use high-availability solution with high system up-time, no data loss, and scalability for future growth.
 | ||
| * [MariaDB](https://mariadb.org/) - Community-developed fork of the MySQL.
 | ||
| * [MySQL](http://dev.mysql.com/) - Most popular RDBMS server.
 | ||
| * [Percona Server](http://www.percona.com/software) - Enhanced, drop-in MySQL replacement.
 | ||
| * [PostgreSQL](http://www.postgresql.org/) - Object-relational database management system (ORDBMS).
 | ||
| * [PostgreSQL-XL](http://www.postgres-xl.org/) - Scalable Open Source PostgreSQL-based database cluster.
 | ||
| * [SQLite](http://sqlite.org/) - Library that implements a self-contained, serverless, zero-configuration, transactional SQL DBS.
 | ||
| 
 | ||
| ## Security
 | ||
| *Security tools.*
 | ||
| 
 | ||
| * [Blackbox](https://github.com/StackExchange/blackbox) - Safely store secrets in Git/Mercurial. Provides tooling to automatically encrypt secrets like passwords.
 | ||
| * [Denyhosts](http://denyhosts.sourceforge.net/) - Thwart SSH dictionary based attacks and brute force attacks.
 | ||
| * [Fail2Ban](http://www.fail2ban.org/wiki/index.php/Main_Page) - Scans log files and takes action on IPs that show malicious behavior.
 | ||
| * [Glastopf](http://glastopf.org/) - A low-interaction web application honeypot to emulate vulnerabilities and gather attack data.
 | ||
| * [Kippo](https://github.com/desaster/kippo) - A medium-interaction SSH honeypot, mostly used as a standalone SSH daemon with a configurable Filesystem sandbox.
 | ||
| * [OSSEC](http://ossec.net) - OSSEC is a HIDS that performs log analysis, FIM, rootkit detection, and much more.
 | ||
| * [pfSense](https://www.pfsense.org/) - Firewall and Router FreeBSD distribution.
 | ||
| * [Snort](https://www.snort.org/) - Snort is a free and open source network intrusion prevention system (NIPS) and network intrusion detection system (NIDS) created by Martin Roesch in 1998.
 | ||
| * [SpamAssassin](https://spamassassin.apache.org/) - A powerful and popular email spam filter employing a variety of detection technique.
 | ||
| 
 | ||
| ## Service Discovery
 | ||
| 
 | ||
| * [Consul](http://www.consul.io/) - Consul is a tool for service discovery, monitoring and configuration.
 | ||
| * [Doozerd](https://github.com/ha/doozerd) - Doozer is a highly-available, completely consistent store for small amounts of extremely important data.
 | ||
| * [ZooKeeper](http://zookeeper.apache.org/) - ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
 | ||
| 
 | ||
| ## Software Containers
 | ||
| *Operating system–level virtualization.*
 | ||
| 
 | ||
| * [Bitnami](https://bitnami.com/) - Produces open source installers or software packages for web applications and development stacks as well as virtual appliances.
 | ||
| * [Docker](http://www.docker.com/) - Open platform for developers and sysadmins to build, ship, and run distributed applications.
 | ||
| * [LXC](https://linuxcontainers.org/lxc/) -  Userspace interface for the Linux kernel containment features. 
 | ||
| * [OpenVZ](http://openvz.org) - Container-based virtualization for Linux.
 | ||
| 
 | ||
| ## SSH
 | ||
| *SSH tools.*
 | ||
| 
 | ||
| * [autossh](http://www.harding.motd.ca/autossh/) - Automatically respawn ssh session after network interruption.
 | ||
| * [Cluster SSH](http://sourceforge.net/projects/clusterssh/) - Controls a number of xterm windows via a single graphical console.
 | ||
| * [DSH](http://www.netfort.gr.jp/~dancer/software/dsh.html.en) - Dancer's shell / distributed shell - Wrapper for executing multiple remote shell commands from one command line.
 | ||
| * [Mosh](http://mosh.mit.edu/) - The mobile shell.
 | ||
| * [parallel-ssh](http://code.google.com/p/parallel-ssh/) - Provides parallel versions of OpenSSH and related tools.
 | ||
| * [SSH Power Tool](http://code.google.com/p/sshpt/) - Execute commands and upload files to many servers simultaneously without using pre-shared keys.
 | ||
| * [sshrc](https://github.com/Russell91/sshrc) - sources ~/.sshrc on your local computer after logging in remotely.
 | ||
| * [stormssh](http://stormssh.readthedocs.org) - A command line tool to manage SSH connections.
 | ||
| 
 | ||
| ## Statistics
 | ||
| *Analytics software.*
 | ||
| 
 | ||
| * [Analog](http://www.analog.cx/) - Logfile Analyser.
 | ||
| * [AWStats](http://www.awstats.org/) - Generates web, streaming, ftp or mail server statistics graphically.
 | ||
| * [GoAccess](http://goaccess.io/) - Real-time web log analyzer and interactive viewer that runs in a terminal.
 | ||
| * [Open Web Analytics](http://www.openwebanalytics.com/) - Add web analytics to websites using JS, PHP or REST APIs.
 | ||
| * [Piwik](http://piwik.org/) - Web analytics application.
 | ||
| * [Webalizer](http://www.webalizer.org/) - Fast web server log file analysis.
 | ||
| 
 | ||
| ## Status Pages
 | ||
| 
 | ||
| * [Cachet](https://cachethq.io) - An open source status page system written in PHP.
 | ||
| 
 | ||
| ## Ticketing systems
 | ||
| *Web-based ticketing system.*
 | ||
| 
 | ||
| * [Bugzilla](http://www.bugzilla.org/) - General-purpose bugtracker and testing tool originally developed and used by the Mozilla project.
 | ||
| * [Cerb](http://www.cerberusweb.com/) - Group-based e-mail management project.
 | ||
| * [Flyspray](http://flyspray.org) - Web-based bug tracking system written in PHP.
 | ||
| * [MantisBT](http://www.mantisbt.org/) - Web-based bug tracking system.
 | ||
| * [osTicket](http://osticket.com/) - Simple support ticket system.
 | ||
| * [OTRS](http://www.otrs.com/) - Trouble ticket system for assigning tickets to incoming queries and tracking further communications.
 | ||
| * [Request Tracker](http://www.bestpractical.com/rt/) - Ticket-tracking system written in Perl.
 | ||
| * [TheBugGenie](http://www.thebuggenie.com) - Ticket system with extensive user rights system.
 | ||
| 
 | ||
| ## Troubleshooting
 | ||
| *Troubleshooting Tools.*
 | ||
| 
 | ||
| * [mitmproxy](http://mitmproxy.org/) - A Python tool used for intercepting, viewing and modifying network traffic. Invaluable in troubleshooting certain problems.
 | ||
| * [Sysdig](http://www.sysdig.org/) - Capture system state and activity from a running Linux instance, then save, filter and analyze.
 | ||
| * [Trinity Rescue Kit](http://trinityhome.org) - Linux Live CD for general computer troubleshooting.
 | ||
| * [Wireshark](http://www.wireshark.org/) - The world's foremost network protocol analyzer.
 | ||
| 
 | ||
| ## Project Management
 | ||
| *Web-based project management and bug tracking systems.*
 | ||
| 
 | ||
| * [ChiliProject](https://www.chiliproject.org) - Fork of Redmine.
 | ||
| * [GitBucket](https://github.com/takezoe/gitbucket) Clone of GitHub written in Scala; single jar install.
 | ||
| * [GitLab](https://www.gitlab.com/) - Clone of GitHub written in Ruby.
 | ||
| * [Gogs](http://gogs.io/) - Self-hosted Git service written in Go.
 | ||
| * [OpenProject](https://www.openproject.org) - Project collaboration with open source.
 | ||
| * [Phabricator](http://phabricator.org/) Written in PHP.
 | ||
| * [Redmine](http://www.redmine.org/) - Written in ruby on rails.
 | ||
| * [Taiga](https://taiga.io/) - Agile, Free, Open Source Project Management Tool based on the Kanban and Scrum methods.
 | ||
| * [The Bug Genie](http://www.thebuggenie.com/) - Written in PHP.
 | ||
| * [Trac](http://trac.edgewall.org/) - Written in python.
 | ||
| 
 | ||
| ## Version control
 | ||
| *Software versioning and revision control.*
 | ||
| 
 | ||
| * [Fossil](http://www.fossil-scm.org/) - Distributed version control with built-in wiki and bug tracking.
 | ||
| * [Git](http://git-scm.com/) - Distributed revision control and source code management (SCM) with an emphasis on speed.
 | ||
| * [GNU Bazaar](http://bazaar.canonical.com/) - Distributed revision control system sponsored by Canonical.
 | ||
| * [Mercurial](http://mercurial.selenic.com/) - Another distributed revision control.
 | ||
| * [Subversion](http://subversion.apache.org/) - Client-server revision control system.
 | ||
| 
 | ||
| ## Virtualization
 | ||
| *Virtualization software.*
 | ||
| 
 | ||
| * [Ganeti](https://code.google.com/p/ganeti/) - Cluster virtual server management software tool built on top of KVM and Xen.
 | ||
| * [KVM](http://www.linux-kvm.org) - Linux kernel virtualization infrastructure.
 | ||
| * [oVirt](http://www.ovirt.org/) - Manages virtual machines, storage and virtual networks.
 | ||
| * [Packer](http://www.packer.io/) - A tool for creating identical machine images for multiple platforms from a single source configuration.
 | ||
| * [QEMU](http://www.qemu.org/) - QEMU is a generic and open source machine emulator and virtualizer.
 | ||
| * [Vagrant](https://www.vagrantup.com/) - Tool for building complete development environments.
 | ||
| * [VirtualBox](https://www.virtualbox.org/) - Virtualization product from Oracle Corporation.
 | ||
| * [Xen](http://www.xenproject.org/) - Virtual machine monitor for 32/64 bit Intel / AMD (IA 64) and PowerPC 970 architectures.
 | ||
| 
 | ||
| ## VPN
 | ||
| *VPN software.*
 | ||
| 
 | ||
| * [OpenVPN](https://community.openvpn.net) - Uses a custom security protocol that utilizes SSL/TLS for key exchange.
 | ||
| * [Pritunl](http://pritunl.com/) - OpenVPN based solution. Easy to set up.
 | ||
| * [SoftEther](https://www.softether.org/) - Multi-protocol software VPN with advanced features
 | ||
| * [sshuttle](https://github.com/apenwarr/sshuttle) - Poor man's VPN.
 | ||
| * [strongSwan](http://www.strongswan.org/) - Complete IPsec implementation for Linux.
 | ||
| * [tinc](http://www.tinc-vpn.org/) - Distributed p2p VPN.
 | ||
| 
 | ||
| ## XMPP
 | ||
| *XMPP servers.*
 | ||
| 
 | ||
| * [ejabberd](http://www.ejabberd.im/) - XMPP instant messaging server written in Erlang/OTP.
 | ||
| * [Metronome IM](http://www.lightwitch.org/metronome) - Fork of Prosody IM.
 | ||
| * [MongooseIM](https://www.erlang-solutions.com/products/mongooseim-massively-scalable-ejabberd-platform) - Fork of ejabberd.
 | ||
| * [Openfire](http://www.igniterealtime.org/projects/openfire/) - Real time collaboration (RTC) server.
 | ||
| * [Prosody IM](http://prosody.im/) - XMPP server written in Lua.
 | ||
| * [Tigase](https://projects.tigase.org/projects/tigase-server) - XMPP server implementation in Java.
 | ||
| 
 | ||
| ## Web
 | ||
| *Web servers.*
 | ||
| 
 | ||
| * [Apache](http://httpd.apache.org/) - Most popular web server.
 | ||
| * [Cherokee](http://cherokee-project.com/) - Lightweight, high-performance web server/reverse proxy.
 | ||
| * [Lighttpd](http://www.lighttpd.net/) - Web server more optimized for speed-critical environments.
 | ||
| * [Nginx](http://nginx.org/) - Reverse proxy, load balancer, HTTP cache, and web server.
 | ||
| * [uWSGI](https://github.com/unbit/uwsgi/) - The uWSGI project aims at developing a full stack for building hosting services.
 | ||
| 
 | ||
| *Web Performance*
 | ||
| 
 | ||
| * [HAProxy](http://www.haproxy.org/) - Software based load Balancing, SSL offloading and performance optimization, compression, and general web routing.
 | ||
| * [Varnish](https://www.varnish-cache.org/) - HTTP based web application accelerator focusing on optimizing caching and compression.
 | ||
| 
 | ||
| 
 | ||
| ## Wikis
 | ||
| *Wiki software.*
 | ||
| 
 | ||
| * [DokuWiki](https://www.dokuwiki.org/dokuwiki) - Simple to use and highly versatile wiki that doesn't require a database.
 | ||
| * [Gollum](https://github.com/gollum/gollum) - A simple, Git-powered wiki with a sweet API and local frontend.
 | ||
| * [ikiwiki](http://ikiwiki.info/) - A wiki compiler.
 | ||
| * [Mediawiki](http://www.mediawiki.org/wiki/MediaWiki) - Used to power Wikipedia.
 | ||
| * [MoinMoin](http://moinmo.in/) - An advanced, easy to use and extensible WikiEngine with a large community of users.
 | ||
| * [Ōlelo Wiki](https://github.com/minad/olelo) - A a wiki that stores pages in a Git repository.
 | ||
| * [TiddlyWiki](http://tiddlywiki.com) - Complete interactive wiki in JavaScript.
 | ||
| 
 | ||
| # Resources
 | ||
| Various resources, such as books, websites and articles, for improving your skills and knowledge.
 | ||
| 
 | ||
| ## Blogs
 | ||
| 
 | ||
| * [Code as Craft](http://codeascraft.com/) - Etsy's Ops blog, lots of technical posts.
 | ||
| * [DevOpsGuys](http://blog.devopsguys.com/) - Devops consultants who blog about operations.
 | ||
| * [Rackspace Developers](http://developer.rackspace.com/blog/) - Slightly biased blog with lots of Devops Topics.
 | ||
| 
 | ||
| ## Books
 | ||
| *Sysadmin related books.*
 | ||
| 
 | ||
| * [The Linux Command Line](http://linuxcommand.org/tlcl.php) - A book about the Linux command line by William Shotts.
 | ||
| * [The Phoenix Project: A Novel about IT, DevOps, and Helping Your Business Win](http://itrevolution.com/books/phoenix-project-devops-book/) - How DevOps techniques can fix the problems that happen in IT organizations.
 | ||
| * [The Practice of System and Network Administration](http://everythingsysadmin.com/books.html) - The first and second editions describes the best practices of system and network administration, independent of specific platforms or technologies.
 | ||
| * [The Visible Ops Handbook: Implementing ITIL in 4 Practical and Auditable Steps](http://www.itpi.org/the-visible-ops-handbook-review.html) - Is a methodology designed to jumpstart implementation of controls and process improvement.
 | ||
| * [UNIX and Linux System Administration Handbook](http://www.admin.com/) - Approaches system administration from a practical perspective.
 | ||
| 
 | ||
| ## Newsletters
 | ||
| 
 | ||
| * [Servers for Hackers](http://serversforhackers.com/) - Newsletter for programmers who find themselves needing to know their way around a server.
 | ||
| 
 | ||
| ## Repositories
 | ||
| *Software package repositories.*
 | ||
| 
 | ||
| * [AlternativeTo](http://alternativeto.net) - Find alternatives to software you know and discover new software.
 | ||
| 
 | ||
| ### Debian-based distributions
 | ||
| * [Dotdeb](http://www.dotdeb.org/) - Repository with LAMP updated packages for Debian.
 | ||
| 
 | ||
| ### RPM-based distributions
 | ||
| * [ElRepo](http://elrepo.org/tiki/tiki-index.php) - Community Repo for Enterprise Linux (RHEL, CentOS, etc).
 | ||
| * [EPEL](https://fedoraproject.org/wiki/EPEL) - Repository for RHEL and compatibles (CentOS, Scientific Linux).
 | ||
| * [Remi](http://rpms.famillecollet.com/) - Repository with LAMP updated packages for RHEL/Centos/Fedora.
 | ||
| * [Software Collections](https://www.softwarecollections.org) - Community Release of [Red Hat Software Collections](https://access.redhat.com/documentation/en-US/Red_Hat_Software_Collections/). Provides updated packages of Ruby, Python, etc. for CentOS/Scientific Linux 6.x.
 | ||
| 
 | ||
| ## Websites
 | ||
| *Useful sysadmin related websites.*
 | ||
| 
 | ||
| * [Ops School](http://www.opsschool.org) - Comprehensive program that will help you learn to be an operations engineer.
 | ||
| * [Digital Ocean Tutorials](https://www.digitalocean.com/community/tutorials) - A surprisingly vast resource for getting the basics of certain applications, tools, or even systems administration topics.
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