Awesome Sysadmin

Awesome Sysadmin

A curated list of amazingly awesome open source sysadmin resources.


Please read CONTRIBUTING if you wish to add software.

Table of Contents


Backup software.

  • Amanda – Client-server model backup tool.
  • Attic – A deduplicating backup program written in Python.
  • Bacula – Another Client-server model backup tool.
  • Bareos – A fork of Bacula backup tool.
  • Backupninja – Lightweight, extensible meta-backup system.
  • Backuppc – Client-server model backup tool with file pooling scheme.
  • Brebis – A fully automated backup checker.
  • Bup – Incremental backups with rolling checksums, git packfiles, de-duplication, and a FUSE filesystem.
  • Burp – Network backup and restore program.
  • Duplicity – Encrypted bandwidth-efficient backup using the rsync algorithm.
  • FreeFileSync – Folder comparison and synchronization tool.
  • Lsyncd – File Monitor which spawns a process to synchronize the changes (rsync by default).
  • Rsnapshot – Filesystem Snapshotting Utility.
  • SafeKeep – Centralized pull-based backup using rdiff-backup.
  • Snebu – Snapshot backup with global multi-client deduplication and transparent compression.
  • UrBackup – Another client-server backup system.
  • ZBackup – A versatile deduplicating backup tool.

Backup libraries.

  • Backup – Provides an elegant DSL in Ruby for performing backups on UNIX-like systems.
  • DREBS – AWS EBS backup script that supports strategies.

Build Automation

Build automation tools.

  • Apache Ant – Automation build tool, similar to make, written in Java.
  • Apache Maven – Build automation tool mainly for Java.
  • GNU Make – The most popular automation build tool for many purposes.
  • Gradle – Another open source build automation system.


Conversation-driven development & management.

  • CloudBot – The simple, fast, expandable, open-source Python IRC bot.
  • Eggdrop – The world’s most popular Open Source IRC bot, designed for flexibility and ease of use.
  • Err – A plugin based chatbot designed to be easily deployable, extensible and maintainable.
  • Hubot – A customizable, life embetterment robot.
  • Lazlo – A chatops automation framework in Go.
  • Lita – A robot companion for your company’s chat room.


Cloning software.

  • Clonezilla – Partition and disk imaging/cloning program.
  • Fog – Another computer cloning solution.
  • Redo Backup – Easy Backup, Recovery and Restore.

Cloud Computing

  • AppScale – Open source cloud software with Google App Engine compatibility.
  • Archipel – Manage and supervise virtual machines using Libvirt.
  • CloudStack – Cloud computing software for creating, managing, and deploying infrastructure cloud services.
  • Cobbler – Cobbler is a Linux installation server that allows for rapid setup of network installation environments.
  • Eucalyptus – Open source private cloud software with AWS compatibility.
  • Mesos – Develop and run resource-efficient distributed systems.
  • OpenNebula – An user-driven cloud management platform for sysadmins and devops.
  • Openshift Origin – Open source upstream of OpenShift, the next generation application hosting platform developed by Red Hat.
  • OpenStack – Open source software for building private and public clouds.
  • The Foreman – Foreman is a complete lifecycle management tool for physical and virtual servers. FOSS.
  • Tsuru – Tsuru is an extensible and open source Platform as a Service software.

Cloud Orchestration

  • BOSH – IaaS orchestration platform originally written for deploying and managing Cloud Foundry PaaS, but also useful for general purpose distributed systems.
  • Ansible – Contains modules for controlling many types of cloud resources.
  • Cloudify – Open source TOSCA-based cloud orchestration software platform written in Python and YAML.
  • consul – It is a tool for discovering and configuring services in your infrastructure.
  • doozerd – Doozer is a highly-available, completely consistent store for small amounts of extremely important data.
  • etcd – A highly-available key value store for shared configuration and service discovery.
  • Juju – Cloud orechestration tool which manages services as charms, YAML configuration and deployment script bundles.
  • MCollective – Ruby framework to manage server orchestration, developed by Puppet labs.
  • Overcast – Deploy VMs across different cloud providers, and run commands and scripts across any or all of them in parallel via SSH.
  • Rundeck – Simple orchestration tool.
  • Salt – Fast, scalable and flexible systems management software written in Python/ZeroMQ.
  • serf – Serf is a tool for cluster membership.
  • StackStorm – Event Driven Operations and ChatOps platform for infrastructure management. Written in Python.
  • zookeeper – ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

Cloud Storage

  • git-annex assistant – A synchronised folder on each of your OSX and Linux computers, Android devices, removable drives, NAS appliances, and cloud services.
  • ownCloud – Provides universal access to your files via the web, your computer or your mobile devices.
  • Seafile – Another Open Source Cloud Storage solution.
  • SparkleShare – Provides cloud storage and file synchronization services. By default, it uses Git as a storage backend.
  • Swift – A highly available, distributed, eventually consistent object/blob store.
  • Syncthing – Open Source system for private, encrypted and authenticated distribution of data.

Code Review

Web Based collaborative code review system.

  • Gerrit – Based on the Git version control, it facilitates software developers to review modifications to the source code and approve or reject those changes.
  • 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.
  • Review Board – Web-based collaborative code review tool.

Collaborative Software

Collaborative software or groupware suites.

  • Citadel/UX – Collaboration suite (messaging and groupware) that is descended from the Citadel family of programs.
  • EGroupware – Groupware software written in PHP.
  • Horde Groupware – PHP based collaborative software suite that includes email, calendars, wikis, time tracking and file management.
  • Kolab – Another groupware suite.
  • SOGo – Collaborative software server with a focus on simplicity and scalability.
  • Zimbra – Collaborative software suite, that includes an email server and web client.

Configuration Management Database

Configuration management database (CMDB) software.

  • 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.
  • Collins – At Tumblr, it’s the infrastructure source of truth and knowledge.
  • i-doit – Open Source IT Documentation and CMDB.
  • iTop – Complete open source, ITIL, web based service management tool.
  • Ralph – Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
  • Sicekit – The systems & infrastructure encyclopaedia toolkit (based on mediawiki).

Configuration Management

Configuration management tools.

  • Ansible – It’s written in Python and manages the nodes over SSH.
  • CFEngine – Lightweight agent system. Configuration state is specified via a declarative language.
  • Chef – It’s written in Ruby and Erlang and uses a pure-Ruby DSL.
  • Pallet – Infrastructure definition, configuration and management via a Clojure DSL.
  • Puppet – It’s written in Ruby and uses Puppet’s declarative language or a Ruby DSL.
  • (R)?ex – It’s written in Perl and use plain Perl, over SSH without agent.
  • Salt – It’s written in Python.
  • Slaughter – It’s written in Perl.

Continuous Integration & Continuous Deployment

Continuous integration/deployment software.

  • Buildbot – Python-based toolkit for continuous integration.
  • Drone – Continuous integration server built on Docker and configured using YAML files.
  • GitLab CI – Based off of ruby. They also provide GitLab, which manages git repositories.
  • Go – Open source continuous delivery server.
  • Jenkins – An extendable open source continuous integration server.

Control Panels

Web hosting and server control panels.

  • Ajenti – Control panel for Linux and BSD.
  • Cockpit – New multi-server web interface for Linux servers written in C.
  • Feathur – VPS Provisioning and Management Software.
  • Froxlor – Easy to use panel for Linux with Nginx and PHP-FPM support.
  • ISPConfig – Hosting control panel for Linux.
  • Sentora – Control panel for Linux, BSD, and Windows based on ZPanel.
  • VestaCP – Hosting panel for Linux but with Nginx.
  • Virtualmin – Control panel for Linux based on webmin.
  • Webmin – Linux server control panel.
  • ZPanel – Control panel for Linux, BSD, and Windows.

Deployment Automation

Tools and scripts to support deployments to your servers.

  • Capistrano – Deploy your application to any number of machines simultaneously, in sequence or as a rolling set via SSH (rake based).
  • Fabric – Python library and cli tool for streamlining the use of SSH for application deployment or systems administration tasks.
  • Mina – Really fast deployer and server automation tool (rake based).
  • Rocketeer – PHP task runner and deployment tool.
  • Vlad the Deployer – Deployment automation (rake based).

Distributed Filesystems

Network distributed filesystems.

  • Ceph – Distributed object store and file system.
  • DRBD – Distributed Replicated Block Device.
  • LeoFS – Unstructured object/data storage and a highly available, distributed, eventually consistent storage system.
  • GlusterFS – Scale-out network-attached storage file system.
  • HDFS – Distributed, scalable, and portable file-system written in Java for the Hadoop framework.
  • Lustre – A type of parallel distributed file system, generally used for large-scale cluster computing.
  • MooseFS – Fault tolerant, network distributed file system.
  • MogileFS – Application level, network distributed file system.
  • OpenAFS – Distributed network file system with read-only replicas and multi-OS support.
  • TahoeLAFS – secure, decentralized, fault-tolerant, peer-to-peer distributed data store and distributed file system.
  • XtreemFS – XtreemFS is a fault-tolerant distributed file system for all storage needs.


DNS servers.

  • Bind – The most widely used name server software.
  • djbdns – A collection of DNS applications, including tinydns.
  • Designate – DNS REST API that support several DNS servers as its backend.
  • dnsmasq – A lightweight service providing DNS, DHCP and TFTP services to small-scale networks.
  • Knot – High performance authoritative-only DNS server.
  • NSD – Authoritative only, high performance, simple name server.
  • PowerDNS – DNS server with a variety of data storage back-ends and load balancing features.
  • Unbound – Validating, recursive, and caching DNS resolver.
  • Yadifa – Lightweight authoritative Name Server with DNSSEC capabilities powering the .eu top-level domain.


Open source code editors.

  • Atom – A hackable text editor from Github.
  • Brackets – Open source code editor for web designers and front-end developers.
  • Eclipse – IDE written in Java with an extensible plug-in system.
  • Geany – GTK2 text editor.
  • GNU Emacs – An extensible, customizable text editor-and more.
  • Haroopad – Markdown editor with live preview.
  • ICEcoder – Code editor awesomeness, built with common web languages.
  • jotgit – Git-backed real-time collaborative code editing.
  • Light Table – The next generation code editor.
  • Lime – Aims to provide an open source solution to Sublime Text
  • TextMate – A graphical text editor for OS X.
  • Vim – A highly configurable text editor built to enable efficient editing.

IT Asset Management

IT Assets Management software.

  • GLPI – Information Resource-Manager with an additional Administration Interface.
  • OCS Inventory NG – Enables users to inventory their IT assets.
  • RackTables – Datacenter and server room asset management like document hardware assets, network addresses, space in racks, networks configuration.
  • Ralph – Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
  • Snipe IT – Asset & license management software.


LDAP servers.

LDAP management

Log Management

Log management tools: collect, parse, visualize …

  • Echofish – A web based real-time event log aggregation, analysis, monitoring and management system.
  • Elasticsearch – A Lucene Based Document store mainly used for log indexing, storage and analysis.
  • Fluentd – Log Collector and Shipper.
  • Flume – Distributed log collection and aggregation system.
  • Graylog2 – Pluggable Log and Event Analysis Server with Alerting options.
  • Heka – Stream processing system which may be used for log aggregation.
  • Kibana – Visualize logs and time-stamped data.
  • Logstash – Tool for managing events and logs.
  • Octopussy – Log Management Solution (Visualize / Alert / Report).

Mail Servers

Mail Delivery Agents (IMAP/POP3 software).

  • Courier IMAP/POP3 – Fast, scalable, enterprise IMAP and POP3 server.
  • Cyrus IMAP/POP3 – Intended to be run on sealed servers, where normal users are not permitted to log in.
  • Dovecot – IMAP and POP3 server written primarily with security in mind.
  • Qpopper – One of the oldest and most popular server implementations of POP3.

Mail Transfer Agents (SMTP servers).

  • Exim – Message transfer agent (MTA) developed at the University of Cambridge.
  • Haraka – A high-performance, pluginable SMTP server written in JavaScript.
  • MailCatcher – Ruby gem that deploys a simply SMTP MTA gateway that accepts all mail and displays in web interface. Useful for debugging or development.
  • Maildrop – Open Source disposable email SMTP server, also useful for development.
  • OpenSMTPD – Secure SMTP server implementation from the OpenBSD project.
  • Postfix – Fast, easy to administer, and secure Sendmail replacement.
  • Qmail – Secure Sendmail replacement.
  • Sendmail – Message transfer agent (MTA).

Complete solutions.

  • Mail-in-a-Box – Take back control of your email with this easy-to-deploy mail server in a box.
  • iRedMail – Full-featured mail server solution based on Postfix and Dovecot.


XMPP servers.

  • ejabberd – XMPP instant messaging server written in Erlang/OTP.
  • Metronome IM – Fork of Prosody IM.
  • MongooseIM – Fork of ejabberd.
  • Openfire – Real time collaboration (RTC) server.
  • Prosody IM – XMPP server written in Lua.
  • Tigase – XMPP server implementation in Java.

XMPP web clients.

  • Candy – Multi user XMPP client written in Javascript.
  • Kaiwa – Web based chat client in the style of common paid alternatives.


  • Lets-Chat – A self hosted chat suite written in Node.


Monitoring software.

  • Alerta – Distributed, scaleable and flexible monitoring system.
  • Cacti – Web-based network monitoring and graphing tool.
  • Cabot – Monitoring and alerts, similar to PagerDuty.
  • Centreon – IT infrastructure and application monitoring for service performance.
  • check_mk – Collection of extensions for Nagios.
  • Flapjack – Monitoring notification routing & event processing system.
  • Icinga – Fork of Nagios.
  • LibreNMS – fork of Observium.
  • Monit – Small Open Source utility for managing and monitoring Unix systems.
  • Munin – Networked resource monitoring tool.
  • Naemon – Network monitoring tool based on the Nagios 4 core with performance enhancements and new features.
  • Nagios – Computer system, network and infrastructure monitoring software application.
  • Node-Bell – Real-time anomalies detection for periodic time series, metrics monitor.
  • Observium – SNMP monitoring for servers and networking devices. Runs on linux.
  • Opsview – Based on Nagios 4, Opsview Core is ideal for small IT and test environments.
  • Riemann – Flexible and fast events processor allowing complex events/metrics analysis.
  • Sensu – Open source monitoring framework.
  • Sentry – Application monitoring, event logging and aggregation.
  • Seyren – An alerting dashboard for Graphite.
  • Shinken – Another monitoring framework.
  • Xymon – Network monitoring inspired by Big Brother.
  • Zabbix – Enterprise-class software for monitoring of networks and applications.
  • Zenoss – Application, server, and network management platform based on Zope.

Monitoring dashboards.

  • Adagios – Web based Nagios configuration interface.
  • Dash – A low-overhead monitoring web dashboard for a GNU/Linux machine.
  • Thruk – Multibackend monitoring web interface with support for Naemon, Nagios, Icinga and Shinken.
  • Uchiwa – Simple dashboard for the Sensu monitoring framework.

Monitoring distributions.

  • OMD – The Open Monitoring Distribution.

Metric & Metric Collection

Metric gathering and display software.

  • Collectd – System statistic collection daemon.
  • Collectl – High precision system performance metrics collecting tool.
  • 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.
  • Diamond – Python based statistic collection daemon.
  • Facette – Time series data visualization and graphing software written in Go.
  • Freeboard – A damn-sexy front-end real-time dashboard. Transforms raw JSON into delicious UI.
  • Ganglia – High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
  • Grafana – A Graphite & InfluxDB Dashboard and Graph Editor.
  • Graphite – Open source scalable graphing server.
  • InfluxDB – Open source distributed time series database with no external dependencies.
  • KairosDB – Fast distributed scalable time series database, fork of OpenTSDB 1.x.
  • OpenTSDB – Store and server massive amounts of time series data without losing granularity.
  • Packetbeat – Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
  • Prometheus – Service monitoring system and time series database.
  • RRDtool – Open source industry standard, high performance data logging and graphing system for time series data.
  • Statsd – Application statistic listener.

Network Configuration Management

Network configuration management tools.

  • GestióIP – An automated web based IPv4/IPv6 IP Address Management tool.
  • NOC Project – Scalable, high-performance and open-source OSS system for ISP, service and content providers.
  • Oxidized – A modern take on network device configuration monitoring with web interface and GIT storage.
  • RANCID – Monitors network device’s configuration and maintain history of changes.
  • rConfig – Another network device configuration management tool.
  • trigger – Robust network automation toolkit written in Python.


Newsletter software.

  • DadaMail – Mailing List Manager, written in Perl.
  • phpList – Newsletter manager written in PHP.



  • Apache HBase – Hadoop database, a distributed, big data store.
  • Cassandra – Distributed DBMS designed to handle large amounts of data across many servers.
  • Hypertable – C++ based BigTable-like DBMS, communicates through Thrift and runs either as stand-alone or on distributed FS such as Hadoop.

Document Store.

  • CouchDB – Ease of use, with multi-master replication document-oriented database system.
  • ElasticSearch – Java based database, popular with log aggregation, and email archiving projects.
  • MongoDB – Another document-oriented database system.
  • RavenDB – Document based database with ACID/Transactional features.
  • RethinkDB – Open source distributed document store database, focuses on JSON.


  • FlockDB – Twitter’s distributed, fault-tolerant graph database.
  • Neo4j – Open source graph database.


  • Couchbase – In-memory, replicated, peristent key/value datastore.
  • LevelDB – Google’s high performance key/value database.
  • Redis – Networked, in-memory, key-value data store with optional durability.
  • Riak – Another fault-tolerant key-value NoSQL database.


  • fpm – Versatile multi format package creator.
  • omnibus-ruby – Full stack, cross distro packaging software (Ruby).
  • packman – Full stack, cross distro packaging software (Python).
  • tito – Builds RPMs for git-based projects.


Queuing software.

  • ActiveMQ – An open source message broker written in Java together with a full JMS client.
  • BeanstalkD – A simple, fast work queue.
  • Gearman – Fast multi-language queuing/job processing platform.
  • Kafka – A high-throughput distributed messaging system.
  • NSQ – A realtime distributed messaging platform.
  • RabbitMQ – Robust, fully featured, cross distro queuing system.

Queuing libraries.

  • ZeroMQ – High-performance asynchronous messaging library.


Relational DBMS.

  • Firebird – True universal open source database.
  • 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.
  • MariaDB – Community-developed fork of the MySQL.
  • MySQL – Most popular RDBMS server.
  • Percona Server – Enhanced, drop-in MySQL replacement.
  • PostgreSQL – Object-relational database management system (ORDBMS).
  • PostgreSQL-XL – Scalable Open Source PostgreSQL-based database cluster.
  • SQLite – Library that implements a self-contained, serverless, zero-configuration, transactional SQL DBS.


Security tools.

  • Blackbox – Safely store secrets in Git/Mercurial. Provides tooling to automatically encrypt secrets like passwords.
  • Denyhosts – Thwart SSH dictionary based attacks and brute force attacks.
  • Fail2Ban – Scans log files and takes action on IPs that show malicious behavior.
  • fwknop – Protects ports via Single Packet Authorization in your firewall.
  • Glastopf – A low-interaction web application honeypot to emulate vulnerabilities and gather attack data.
  • Kippo – A medium-interaction SSH honeypot, mostly used as a standalone SSH daemon with a configurable Filesystem sandbox.
  • OSSEC – OSSEC is a HIDS that performs log analysis, FIM, rootkit detection, and much more.
  • OSQuery – Query your servers status and info using a SQL like interface.
  • pfSense – Firewall and Router FreeBSD distribution.
  • 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.
  • SpamAssassin – A powerful and popular email spam filter employing a variety of detection technique.

Service Discovery

  • Consul – Consul is a tool for service discovery, monitoring and configuration.
  • Doozerd – Doozer is a highly-available, completely consistent store for small amounts of extremely important data.
  • ZooKeeper – ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

Software Containers

Operating system–level virtualization.

  • Bitnami – Produces open source installers or software packages for web applications and development stacks as well as virtual appliances.
  • Docker – Open platform for developers and sysadmins to build, ship, and run distributed applications.
  • LXC – Userspace interface for the Linux kernel containment features.
  • OpenVZ – Container-based virtualization for Linux.
  • Fig – Fast, isolated development environments using Docker.


SSH tools.

  • Advanced SSH config – Enhances ssh_config file capabilities, completely transparent.
  • autossh – Automatically respawn ssh session after network interruption.
  • Cluster SSH – Controls a number of xterm windows via a single graphical console.
  • DSH – Dancer’s shell / distributed shell – Wrapper for executing multiple remote shell commands from one command line.
  • Mosh – The mobile shell.
  • parallel-ssh – Provides parallel versions of OpenSSH and related tools.
  • pdsh – Pdsh is a high-performance, parallel remote shell utility.
  • SSH Power Tool – Execute commands and upload files to many servers simultaneously without using pre-shared keys.
  • sshrc – sources ~/.sshrc on your local computer after logging in remotely.
  • stormssh – A command line tool to manage SSH connections.


Analytics software.

  • Analog – Logfile Analyser.
  • AWStats – Generates web, streaming, ftp or mail server statistics graphically.
  • GoAccess – Real-time web log analyzer and interactive viewer that runs in a terminal.
  • Open Web Analytics – Add web analytics to websites using JS, PHP or REST APIs.
  • Piwik – Web analytics application.
  • Webalizer – Fast, free web server log file analysis program.

Status Pages

  • Cachet – An open source status page system written in PHP.

Ticketing systems

Web-based ticketing system.

  • Bugzilla – General-purpose bugtracker and testing tool originally developed and used by the Mozilla project.
  • Cerb – Group-based e-mail management project.
  • Flyspray – Web-based bug tracking system written in PHP.
  • MantisBT – Web-based bug tracking system.
  • osTicket – Simple support ticket system.
  • OTRS – Trouble ticket system for assigning tickets to incoming queries and tracking further communications.
  • Redmine – Open source project management/ticketing web application written in Ruby.
  • Request Tracker – Ticket-tracking system written in Perl.
  • TheBugGenie – Ticket system with extensive user rights system.


Troubleshooting tools.

  • mitmproxy – A Python tool used for intercepting, viewing and modifying network traffic. Invaluable in troubleshooting certain problems.
  • Sysdig – Capture system state and activity from a running Linux instance, then save, filter and analyze.
  • Wireshark – The world’s foremost network protocol analyzer.

Troubleshooting distributions.

Project Management

Web-based project management and bug tracking systems.

  • ChiliProject – Fork of Redmine.
  • GitBucket Clone of GitHub written in Scala; single jar install.
  • GitLab – Clone of GitHub written in Ruby.
  • Gogs – Self-hosted Git service written in Go.
  • OpenProject – Project collaboration with open source.
  • Phabricator Written in PHP.
  • Redmine – Written in ruby on rails.
  • Taiga – Agile, Free, Open Source Project Management Tool based on the Kanban and Scrum methods.
  • The Bug Genie – Written in PHP.
  • Trac – Written in python.

Version control

Software versioning and revision control.

  • Fossil – Distributed version control with built-in wiki and bug tracking.
  • Git – Distributed revision control and source code management (SCM) with an emphasis on speed.
  • GNU Bazaar – Distributed revision control system sponsored by Canonical.
  • Mercurial – Another distributed revision control.
  • Subversion – Client-server revision control system.


Virtualization software.

  • Archipel – XMPP based virtualization management platform.
  • Ganeti – Cluster virtual server management software tool built on top of KVM and Xen.
  • KVM – Linux kernel virtualization infrastructure.
  • OpenNebula – Flexible enterprise cloud made simple.
  • oVirt – Manages virtual machines, storage and virtual networks.
  • Packer – A tool for creating identical machine images for multiple platforms from a single source configuration.
  • Proxmox VE – Complete open source virtualization management solution.
  • QEMU – QEMU is a generic and open source machine emulator and virtualizer.
  • Vagrant – Tool for building complete development environments.
  • VirtualBox – Virtualization product from Oracle Corporation.
  • Xen – Virtual machine monitor for 32/64 bit Intel / AMD (IA 64) and PowerPC 970 architectures.


VPN software.

  • OpenVPN – Uses a custom security protocol that utilizes SSL/TLS for key exchange.
  • Pritunl – OpenVPN based solution. Easy to set up.
  • SoftEther – Multi-protocol software VPN with advanced features
  • sshuttle – Poor man’s VPN.
  • strongSwan – Complete IPsec implementation for Linux.
  • tinc – Distributed p2p VPN.


Web servers.

  • Apache – Most popular web server.
  • Cherokee – Lightweight, high-performance web server/reverse proxy.
  • Lighttpd – Web server more optimized for speed-critical environments.
  • Nginx – Reverse proxy, load balancer, HTTP cache, and web server.
  • uWSGI – The uWSGI project aims at developing a full stack for building hosting services.

Web Performance.

  • HAProxy – Software based load Balancing, SSL offloading and performance optimization, compression, and general web routing.
  • Squid – Caching proxy for the web supporting HTTP, HTTPS, FTP, and more.
  • Varnish – HTTP based web application accelerator focusing on optimizing caching and compression.


Webmail applications.

  • Mailpile – A modern, fast web-mail client with user-friendly encryption and privacy features.
  • Roundcube – Browser-based IMAP client with an application-like user interface.
  • SquirrelMail – Another browser-based IMAP client.


Wiki software.

  • DokuWiki – Simple to use and highly versatile wiki that doesn’t require a database.
  • Gollum – A simple, Git-powered wiki with a sweet API and local frontend.
  • ikiwiki – A wiki compiler.
  • MDwiki – Wiki completely built in HTML5/Javascript and runs 100% on the client.
  • Mediawiki – Used to power Wikipedia.
  • MoinMoin – An advanced, easy to use and extensible WikiEngine with a large community of users.
  • Ōlelo Wiki – A a wiki that stores pages in a Git repository.
  • TiddlyWiki – Complete interactive wiki in JavaScript.


Various resources, such as books, websites and articles, for improving your skills and knowledge.



Sysadmin related books.


  • Servers for Hackers – Newsletter for programmers who find themselves needing to know their way around a server.


Debian-based distributions.

  • Dotdeb – Repository with LAMP updated packages for Debian.

RPM-based distributions.

  • ElRepo – Community Repo for Enterprise Linux (RHEL, CentOS, etc).
  • EPEL – Repository for RHEL and compatibles (CentOS, Scientific Linux).
  • Remi – Repository with LAMP updated packages for RHEL/Centos/Fedora.
  • Software Collections – Community Release of Red Hat Software Collections. Provides updated packages of Ruby, Python, etc. for CentOS/Scientific Linux 6.x.


Useful sysadmin related websites.

  • Ops School – Comprehensive program that will help you learn to be an operations engineer.
  • Digital Ocean Tutorials – A surprisingly vast resource for getting the basics of certain applications, tools, or even systems administration topics.

Source :