Awesome Sysadmin
A curated list of amazingly awesome open source sysadmin resources.
Contributing
Please read CONTRIBUTING if you wish to add software.
Table of Contents
Backups
Backup software.
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Amanda - Client-server model backup tool.
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Attic - A deduplicating backup program written in Python.
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Bacula - Another Client-server model backup tool.
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Bareos - A fork of Bacula backup tool.
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Backupninja - Lightweight, extensible meta-backup system.
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Backuppc - Client-server model backup tool with file pooling scheme.
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Brebis - A fully automated backup checker.
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Bup - Incremental backups with rolling checksums, git packfiles, de-duplication, and a FUSE filesystem.
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Burp - Network backup and restore program.
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Duplicity - Encrypted bandwidth-efficient backup using the rsync algorithm.
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FreeFileSync - Folder comparison and synchronization tool.
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Lsyncd - File Monitor which spawns a process to synchronize the changes (rsync by default).
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Rsnapshot - Filesystem Snapshotting Utility.
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SafeKeep - Centralized pull-based backup using
rdiff-backup
.
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Snebu – Snapshot backup with global multi-client deduplication and transparent compression.
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UrBackup - Another client-server backup system.
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ZBackup - A versatile deduplicating backup tool.
Backup libraries.
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Backup - Provides an elegant DSL in Ruby for performing backups on UNIX-like systems.
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DREBS - AWS EBS backup script that supports strategies.
Build Automation
Build automation tools.
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Apache Ant - Automation build tool, similar to make, written in Java.
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Apache Maven - Build automation tool mainly for Java.
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GNU Make - The most popular automation build tool for many purposes.
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Gradle - Another open source build automation system.
ChatOps
Conversation-driven development & management.
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CloudBot - The simple, fast, expandable, open-source Python IRC bot.
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Eggdrop - The world's most popular Open Source IRC bot, designed for flexibility and ease of use.
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Err - A plugin based chatbot designed to be easily deployable, extensible and maintainable.
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Hubot - A customizable, life embetterment robot.
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Lazlo - A chatops automation framework in Go.
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Lita - A robot companion for your company's chat room.
Cloning
Cloning software.
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Clonezilla - Partition and disk imaging/cloning program.
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Fog - Another computer cloning solution.
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Redo Backup - Easy Backup, Recovery and Restore.
Cloud Computing
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AppScale - Open source cloud software with Google App Engine compatibility.
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Archipel - Manage and supervise virtual machines using Libvirt.
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CloudStack - Cloud computing software for creating, managing, and deploying infrastructure cloud services.
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Cobbler - Cobbler is a Linux installation server that allows for rapid setup of network installation environments.
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Eucalyptus - Open source private cloud software with AWS compatibility.
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Mesos - Develop and run resource-efficient distributed systems.
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OpenNebula - An user-driven cloud management platform for sysadmins and devops.
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Openshift Origin - Open source upstream of OpenShift, the next generation application hosting platform developed by Red Hat.
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OpenStack - Open source software for building private and public clouds.
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The Foreman - Foreman is a complete lifecycle management tool for physical and virtual servers. FOSS.
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Tsuru - Tsuru is an extensible and open source Platform as a Service software.
Cloud Orchestration
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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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Ansible - Contains modules for controlling many types of cloud resources.
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Cloudify - Open source TOSCA-based cloud orchestration software platform written in Python and YAML.
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consul - It is a tool for discovering and configuring services in your infrastructure.
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doozerd - Doozer is a highly-available, completely consistent store for small amounts of extremely important data.
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etcd - A highly-available key value store for shared configuration and service discovery.
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Juju - Cloud orechestration tool which manages services as charms, YAML configuration and deployment script bundles.
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MCollective - Ruby framework to manage server orchestration, developed by Puppet labs.
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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 - Simple orchestration tool.
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Salt - Fast, scalable and flexible systems management software written in Python/ZeroMQ.
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serf - Serf is a tool for cluster membership.
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StackStorm - Event Driven Operations and ChatOps platform for infrastructure management. Written in Python.
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zookeeper - ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
Cloud Storage
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git-annex 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 - Provides universal access to your files via the web, your computer or your mobile devices.
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Seafile - Another Open Source Cloud Storage solution.
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SparkleShare - Provides cloud storage and file synchronization services. By default, it uses Git as a storage backend.
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Swift - A highly available, distributed, eventually consistent object/blob store.
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Syncthing - Open Source system for private, encrypted and authenticated distribution of data.
Code Review
Web Based collaborative code review system.
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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 - 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 - Web-based collaborative code review tool.
Collaborative Software
Collaborative software or groupware suites.
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Citadel/UX - Collaboration suite (messaging and groupware) that is descended from the Citadel family of programs.
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EGroupware - Groupware software written in PHP.
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Horde Groupware - PHP based collaborative software suite that includes email, calendars, wikis, time tracking and file management.
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Kolab - Another groupware suite.
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SOGo - Collaborative software server with a focus on simplicity and scalability.
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Zimbra - Collaborative software suite, that includes an email server and web client.
Configuration Management Database
Configuration management database (CMDB) software.
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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 - At Tumblr, it's the infrastructure source of truth and knowledge.
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i-doit - Open Source IT Documentation and CMDB.
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iTop - Complete open source, ITIL, web based service management tool.
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Ralph - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
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Sicekit - The systems & infrastructure encyclopaedia toolkit (based on mediawiki).
Configuration Management
Configuration management tools.
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Ansible - It's written in Python and manages the nodes over SSH.
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CFEngine - Lightweight agent system. Configuration state is specified via a declarative language.
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Chef - It's written in Ruby and Erlang and uses a pure-Ruby DSL.
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Pallet - Infrastructure definition, configuration and management via a Clojure DSL.
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Puppet - It's written in Ruby and uses Puppet's declarative language or a Ruby DSL.
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(R)?ex - It's written in Perl and use plain Perl, over SSH without agent.
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Salt - It's written in Python.
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Slaughter - It's written in Perl.
Continuous Integration & Continuous Deployment
Continuous integration/deployment software.
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Buildbot - Python-based toolkit for continuous integration.
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Drone - Continuous integration server built on Docker and configured using YAML files.
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GitLab CI - Based off of ruby. They also provide GitLab, which manages git repositories.
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Go - Open source continuous delivery server.
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Jenkins - An extendable open source continuous integration server.
Control Panels
Web hosting and server control panels.
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Ajenti - Control panel for Linux and BSD.
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Cockpit - New multi-server web interface for Linux servers written in C.
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Feathur - VPS Provisioning and Management Software.
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Froxlor - Easy to use panel for Linux with Nginx and PHP-FPM support.
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ISPConfig - Hosting control panel for Linux.
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Sentora - Control panel for Linux, BSD, and Windows based on ZPanel.
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VestaCP - Hosting panel for Linux but with Nginx.
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Virtualmin - Control panel for Linux based on webmin.
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Webmin - Linux server control panel.
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ZPanel - Control panel for Linux, BSD, and Windows.
Deployment Automation
Tools and scripts to support deployments to your servers.
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Capistrano - 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 - Python library and cli tool for streamlining the use of SSH for application deployment or systems administration tasks.
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Mina - Really fast deployer and server automation tool (rake based).
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Rocketeer - PHP task runner and deployment tool.
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Vlad the Deployer - Deployment automation (rake based).
Distributed Filesystems
Network distributed filesystems.
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Ceph - Distributed object store and file system.
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DRBD - Distributed Replicated Block Device.
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LeoFS - Unstructured object/data storage and a highly available, distributed, eventually consistent storage system.
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GlusterFS - Scale-out network-attached storage file system.
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HDFS - Distributed, scalable, and portable file-system written in Java for the Hadoop framework.
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Lustre - A type of parallel distributed file system, generally used for large-scale cluster computing.
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MooseFS - Fault tolerant, network distributed file system.
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MogileFS - Application level, network distributed file system.
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OpenAFS - Distributed network file system with read-only replicas and multi-OS support.
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TahoeLAFS - secure, decentralized, fault-tolerant, peer-to-peer distributed data store and distributed file system.
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XtreemFS - XtreemFS is a fault-tolerant distributed file system for all storage needs.
DNS
DNS servers.
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Bind - The most widely used name server software.
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djbdns - A collection of DNS applications, including tinydns.
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Designate - DNS REST API that support several DNS servers as its backend.
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dnsmasq - A lightweight service providing DNS, DHCP and TFTP services to small-scale networks.
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Knot - High performance authoritative-only DNS server.
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NSD - Authoritative only, high performance, simple name server.
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PowerDNS - DNS server with a variety of data storage back-ends and load balancing features.
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Unbound - Validating, recursive, and caching DNS resolver.
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Yadifa - Lightweight authoritative Name Server with DNSSEC capabilities powering the .eu top-level domain.
Editors
Open source code editors.
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Atom - A hackable text editor from Github.
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Brackets - Open source code editor for web designers and front-end developers.
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Eclipse - IDE written in Java with an extensible plug-in system.
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Geany - GTK2 text editor.
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GNU Emacs - An extensible, customizable text editor-and more.
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Haroopad - Markdown editor with live preview.
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ICEcoder - Code editor awesomeness, built with common web languages.
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jotgit - Git-backed real-time collaborative code editing.
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Light Table - The next generation code editor.
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Lime - Aims to provide an open source solution to Sublime Text
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TextMate - A graphical text editor for OS X.
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Vim - A highly configurable text editor built to enable efficient editing.
IT Asset Management
IT Assets Management software.
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GLPI - Information Resource-Manager with an additional Administration Interface.
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OCS Inventory NG - Enables users to inventory their IT assets.
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RackTables - Datacenter and server room asset management like document hardware assets, network addresses, space in racks, networks configuration.
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Ralph - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
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Snipe IT - Asset & license management software.
LDAP
LDAP servers.
LDAP management
Log Management
Log management tools: collect, parse, visualize ...
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Echofish - A web based real-time event log aggregation, analysis, monitoring and management system.
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Elasticsearch - A Lucene Based Document store mainly used for log indexing, storage and analysis.
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Fluentd - Log Collector and Shipper.
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Flume - Distributed log collection and aggregation system.
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Graylog2 - Pluggable Log and Event Analysis Server with Alerting options.
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Heka - Stream processing system which may be used for log aggregation.
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Kibana - Visualize logs and time-stamped data.
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Logstash - Tool for managing events and logs.
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Octopussy - Log Management Solution (Visualize / Alert / Report).
Mail Servers
Mail Delivery Agents (IMAP/POP3 software).
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Courier IMAP/POP3 - Fast, scalable, enterprise IMAP and POP3 server.
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Cyrus IMAP/POP3 - Intended to be run on sealed servers, where normal users are not permitted to log in.
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Dovecot - IMAP and POP3 server written primarily with security in mind.
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Qpopper - One of the oldest and most popular server implementations of POP3.
Mail Transfer Agents (SMTP servers).
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Exim - Message transfer agent (MTA) developed at the University of Cambridge.
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Haraka - A high-performance, pluginable SMTP server written in JavaScript.
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MailCatcher - 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 - Open Source disposable email SMTP server, also useful for development.
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OpenSMTPD - Secure SMTP server implementation from the OpenBSD project.
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Postfix - Fast, easy to administer, and secure Sendmail replacement.
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Qmail - Secure Sendmail replacement.
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Sendmail - Message transfer agent (MTA).
Complete solutions.
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Mail-in-a-Box - Take back control of your email with this easy-to-deploy mail server in a box.
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iRedMail - Full-featured mail server solution based on Postfix and Dovecot.
Messaging
XMPP servers.
XMPP web clients.
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Candy - Multi user XMPP client written in Javascript.
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Kaiwa - Web based chat client in the style of common paid alternatives.
Webchats.
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Lets-Chat - A self hosted chat suite written in Node.
Monitoring
Monitoring software.
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Alerta - Distributed, scaleable and flexible monitoring system.
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Cacti - Web-based network monitoring and graphing tool.
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Cabot - Monitoring and alerts, similar to PagerDuty.
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Centreon - IT infrastructure and application monitoring for service performance.
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check_mk - Collection of extensions for Nagios.
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Flapjack - Monitoring notification routing & event processing system.
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Icinga - Fork of Nagios.
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LibreNMS - fork of Observium.
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Monit - Small Open Source utility for managing and monitoring Unix systems.
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Munin - Networked resource monitoring tool.
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Naemon - Network monitoring tool based on the Nagios 4 core with performance enhancements and new features.
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Nagios - Computer system, network and infrastructure monitoring software application.
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Node-Bell - Real-time anomalies detection for periodic time series, metrics monitor.
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Observium - SNMP monitoring for servers and networking devices. Runs on linux.
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Opsview - Based on Nagios 4, Opsview Core is ideal for small IT and test environments.
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Riemann - Flexible and fast events processor allowing complex events/metrics analysis.
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Sensu - Open source monitoring framework.
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Sentry - Application monitoring, event logging and aggregation.
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Seyren - An alerting dashboard for Graphite.
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Shinken - Another monitoring framework.
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Xymon - Network monitoring inspired by Big Brother.
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Zabbix - Enterprise-class software for monitoring of networks and applications.
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Zenoss - Application, server, and network management platform based on Zope.
Monitoring dashboards.
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Adagios - Web based Nagios configuration interface.
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Dash - A low-overhead monitoring web dashboard for a GNU/Linux machine.
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Thruk - Multibackend monitoring web interface with support for Naemon, Nagios, Icinga and Shinken.
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Uchiwa - Simple dashboard for the Sensu monitoring framework.
Monitoring distributions.
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OMD - The Open Monitoring Distribution.
Metric & Metric Collection
Metric gathering and display software.
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Collectd - System statistic collection daemon.
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Collectl - High precision system performance metrics collecting tool.
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Dashing - Ruby gem that allows for rapid statistical dashboard development. An all HTML5 approach allows for big screen displays in data centers or conference rooms.
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Diamond - Python based statistic collection daemon.
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Facette - Time series data visualization and graphing software written in Go.
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Freeboard - A damn-sexy front-end real-time dashboard. Transforms raw JSON into delicious UI.
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Ganglia - High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
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Grafana - A Graphite & InfluxDB Dashboard and Graph Editor.
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Graphite - Open source scalable graphing server.
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InfluxDB - Open source distributed time series database with no external dependencies.
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KairosDB - Fast distributed scalable time series database, fork of OpenTSDB 1.x.
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OpenTSDB - Store and server massive amounts of time series data without losing granularity.
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Packetbeat - Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
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Prometheus - Service monitoring system and time series database.
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RRDtool - Open source industry standard, high performance data logging and graphing system for time series data.
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Statsd - Application statistic listener.
Network Configuration Management
Network configuration management tools.
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GestióIP - An automated web based IPv4/IPv6 IP Address Management tool.
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NOC Project - Scalable, high-performance and open-source OSS system for ISP, service and content providers.
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Oxidized - A modern take on network device configuration monitoring with web interface and GIT storage.
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RANCID - Monitors network device's configuration and maintain history of changes.
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rConfig - Another network device configuration management tool.
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trigger - Robust network automation toolkit written in Python.
Newsletters
Newsletter software.
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DadaMail - Mailing List Manager, written in Perl.
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phpList - Newsletter manager written in PHP.
NoSQL
Column-Family.
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Apache HBase - Hadoop database, a distributed, big data store.
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Cassandra - Distributed DBMS designed to handle large amounts of data across many servers.
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Hypertable - C++ based BigTable-like DBMS, communicates through Thrift and runs either as stand-alone or on distributed FS such as Hadoop.
Document Store.
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CouchDB - Ease of use, with multi-master replication document-oriented database system.
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ElasticSearch - Java based database, popular with log aggregation, and email archiving projects.
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MongoDB - Another document-oriented database system.
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RavenDB - Document based database with ACID/Transactional features.
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RethinkDB - Open source distributed document store database, focuses on JSON.
Graph.
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FlockDB - Twitter's distributed, fault-tolerant graph database.
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Neo4j - Open source graph database.
Key-Value.
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Couchbase - In-memory, replicated, peristent key/value datastore.
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LevelDB - Google's high performance key/value database.
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Redis - Networked, in-memory, key-value data store with optional durability.
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Riak - Another fault-tolerant key-value NoSQL database.
Packaging
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fpm - Versatile multi format package creator.
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omnibus-ruby - Full stack, cross distro packaging software (Ruby).
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packman - Full stack, cross distro packaging software (Python).
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tito - Builds RPMs for git-based projects.
Queuing
Queuing software.
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ActiveMQ - An open source message broker written in Java together with a full JMS client.
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BeanstalkD - A simple, fast work queue.
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Gearman - Fast multi-language queuing/job processing platform.
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Kafka - A high-throughput distributed messaging system.
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NSQ - A realtime distributed messaging platform.
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RabbitMQ - Robust, fully featured, cross distro queuing system.
Queuing libraries.
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ZeroMQ - High-performance asynchronous messaging library.
RDBMS
Relational DBMS.
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Firebird - True universal open source database.
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Galera - 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.
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MariaDB - Community-developed fork of the MySQL.
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MySQL - Most popular RDBMS server.
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Percona Server - Enhanced, drop-in MySQL replacement.
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PostgreSQL - Object-relational database management system (ORDBMS).
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PostgreSQL-XL - Scalable Open Source PostgreSQL-based database cluster.
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SQLite - Library that implements a self-contained, serverless, zero-configuration, transactional SQL DBS.
Security
Security tools.
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Blackbox - Safely store secrets in Git/Mercurial. Provides tooling to automatically encrypt secrets like passwords.
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Denyhosts - Thwart SSH dictionary based attacks and brute force attacks.
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Fail2Ban - Scans log files and takes action on IPs that show malicious behavior.
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fwknop - Protects ports via Single Packet Authorization in your firewall.
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Glastopf - A low-interaction web application honeypot to emulate vulnerabilities and gather attack data.
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Kippo - A medium-interaction SSH honeypot, mostly used as a standalone SSH daemon with a configurable Filesystem sandbox.
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OSSEC - OSSEC is a HIDS that performs log analysis, FIM, rootkit detection, and much more.
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OSQuery - Query your servers status and info using a SQL like interface.
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pfSense - Firewall and Router FreeBSD distribution.
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Snort - Snort is a free and open source network intrusion prevention system (NIPS) and network intrusion detection system (NIDS) created by Martin Roesch in 1998.
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SpamAssassin - A powerful and popular email spam filter employing a variety of detection technique.
Service Discovery
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Consul - Consul is a tool for service discovery, monitoring and configuration.
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Doozerd - Doozer is a highly-available, completely consistent store for small amounts of extremely important data.
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ZooKeeper - ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
Software Containers
Operating system–level virtualization.
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Bitnami - Produces open source installers or software packages for web applications and development stacks as well as virtual appliances.
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Docker - Open platform for developers and sysadmins to build, ship, and run distributed applications.
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LXC - Userspace interface for the Linux kernel containment features.
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OpenVZ - Container-based virtualization for Linux.
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Fig - Fast, isolated development environments using Docker.
SSH
SSH tools.
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Advanced SSH config - Enhances ssh_config file capabilities, completely transparent.
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autossh - Automatically respawn ssh session after network interruption.
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Cluster SSH - Controls a number of xterm windows via a single graphical console.
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DSH - Dancer's shell / distributed shell - Wrapper for executing multiple remote shell commands from one command line.
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Mosh - The mobile shell.
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parallel-ssh - Provides parallel versions of OpenSSH and related tools.
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pdsh - Pdsh is a high-performance, parallel remote shell utility.
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SSH Power Tool - Execute commands and upload files to many servers simultaneously without using pre-shared keys.
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sshrc - sources ~/.sshrc on your local computer after logging in remotely.
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stormssh - A command line tool to manage SSH connections.
Statistics
Analytics software.
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Analog - Logfile Analyser.
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AWStats - Generates web, streaming, ftp or mail server statistics graphically.
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GoAccess - Real-time web log analyzer and interactive viewer that runs in a terminal.
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Open Web Analytics - Add web analytics to websites using JS, PHP or REST APIs.
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Piwik - Web analytics application.
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Webalizer - Fast, free web server log file analysis program.
Status Pages
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Cachet - An open source status page system written in PHP.
Ticketing systems
Web-based ticketing system.
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Bugzilla - General-purpose bugtracker and testing tool originally developed and used by the Mozilla project.
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Cerb - Group-based e-mail management project.
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Flyspray - Web-based bug tracking system written in PHP.
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MantisBT - Web-based bug tracking system.
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osTicket - Simple support ticket system.
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OTRS - Trouble ticket system for assigning tickets to incoming queries and tracking further communications.
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Redmine - Open source project management/ticketing web application written in Ruby.
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Request Tracker - Ticket-tracking system written in Perl.
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TheBugGenie - Ticket system with extensive user rights system.
Troubleshooting
Troubleshooting tools.
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mitmproxy - A Python tool used for intercepting, viewing and modifying network traffic. Invaluable in troubleshooting certain problems.
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Sysdig - Capture system state and activity from a running Linux instance, then save, filter and analyze.
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Wireshark - The world's foremost network protocol analyzer.
Troubleshooting distributions.
Project Management
Web-based project management and bug tracking systems.
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ChiliProject - Fork of Redmine.
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GitBucket Clone of GitHub written in Scala; single jar install.
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GitLab - Clone of GitHub written in Ruby.
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Gogs - Self-hosted Git service written in Go.
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OpenProject - Project collaboration with open source.
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Phabricator Written in PHP.
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Redmine - Written in ruby on rails.
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Taiga - Agile, Free, Open Source Project Management Tool based on the Kanban and Scrum methods.
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The Bug Genie - Written in PHP.
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Trac - Written in python.
Version control
Software versioning and revision control.
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Fossil - Distributed version control with built-in wiki and bug tracking.
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Git - Distributed revision control and source code management (SCM) with an emphasis on speed.
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GNU Bazaar - Distributed revision control system sponsored by Canonical.
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Mercurial - Another distributed revision control.
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Subversion - Client-server revision control system.
Virtualization
Virtualization software.
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Archipel - XMPP based virtualization management platform.
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Ganeti - Cluster virtual server management software tool built on top of KVM and Xen.
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KVM - Linux kernel virtualization infrastructure.
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OpenNebula - Flexible enterprise cloud made simple.
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oVirt - Manages virtual machines, storage and virtual networks.
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Packer - A tool for creating identical machine images for multiple platforms from a single source configuration.
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Proxmox VE - Complete open source virtualization management solution.
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QEMU - QEMU is a generic and open source machine emulator and virtualizer.
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Vagrant - Tool for building complete development environments.
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VirtualBox - Virtualization product from Oracle Corporation.
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Xen - Virtual machine monitor for 32/64 bit Intel / AMD (IA 64) and PowerPC 970 architectures.
VPN
VPN software.
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OpenVPN - Uses a custom security protocol that utilizes SSL/TLS for key exchange.
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Pritunl - OpenVPN based solution. Easy to set up.
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SoftEther - Multi-protocol software VPN with advanced features
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sshuttle - Poor man's VPN.
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strongSwan - Complete IPsec implementation for Linux.
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tinc - Distributed p2p VPN.
Web
Web servers.
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Apache - Most popular web server.
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Cherokee - Lightweight, high-performance web server/reverse proxy.
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Lighttpd - Web server more optimized for speed-critical environments.
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Nginx - Reverse proxy, load balancer, HTTP cache, and web server.
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uWSGI - The uWSGI project aims at developing a full stack for building hosting services.
Web Performance.
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HAProxy - Software based load Balancing, SSL offloading and performance optimization, compression, and general web routing.
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Squid - Caching proxy for the web supporting HTTP, HTTPS, FTP, and more.
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Varnish - HTTP based web application accelerator focusing on optimizing caching and compression.
Webmails
Webmail applications.
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Mailpile - A modern, fast web-mail client with user-friendly encryption and privacy features.
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Roundcube - Browser-based IMAP client with an application-like user interface.
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SquirrelMail - Another browser-based IMAP client.
Wikis
Wiki software.
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DokuWiki - Simple to use and highly versatile wiki that doesn't require a database.
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Gollum - A simple, Git-powered wiki with a sweet API and local frontend.
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ikiwiki - A wiki compiler.
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MDwiki - Wiki completely built in HTML5/Javascript and runs 100% on the client.
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Mediawiki - Used to power Wikipedia.
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MoinMoin - An advanced, easy to use and extensible WikiEngine with a large community of users.
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Ōlelo Wiki - A a wiki that stores pages in a Git repository.
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TiddlyWiki - Complete interactive wiki in JavaScript.
Resources
Various resources, such as books, websites and articles, for improving your skills and knowledge.
Blogs
Books
Sysadmin related books.
Newsletters
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Servers for Hackers - Newsletter for programmers who find themselves needing to know their way around a server.
Repositories
Debian-based distributions.
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Dotdeb - Repository with LAMP updated packages for Debian.
RPM-based distributions.
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ElRepo - Community Repo for Enterprise Linux (RHEL, CentOS, etc).
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EPEL - Repository for RHEL and compatibles (CentOS, Scientific Linux).
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Remi - Repository with LAMP updated packages for RHEL/Centos/Fedora.
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Software Collections - Community Release of Red Hat Software Collections. Provides updated packages of Ruby, Python, etc. for CentOS/Scientific Linux 6.x.
Websites
Useful sysadmin related websites.
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Ops School - Comprehensive program that will help you learn to be an operations engineer.
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Digital Ocean Tutorials - A surprisingly vast resource for getting the basics of certain applications, tools, or even systems administration topics.
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International license.