Awesome Sysadmin 
A curated list of amazingly awesome open source sysadmin resources. Please read CONTRIBUTING if you wish to add software and consider donating to the FLOSS projects you use regularly.
- Awesome Sysadmin
- Automation
 - Backups
 - Build and software organization tools
 - ChatOps
 - Client Management
 - Cloning
 - Cloud Computing
 - Cloud Orchestration
 - Cloud Storage: see awesome-selfhosted#file-transfersynchronization
 - Code Review
 - Collaborative Software
 - Configuration Management Database
 - Configuration Management
 - Continuous Integration & Continuous Deployment
 - Control Panels
 - Deployment Automation
 - Distributed Filesystems
 - DNS
 - Editors
 - Identity Management
 - IT Asset Management
 - Log Management
 - Mail Clients
 - Mail servers/webmail: see awesome-selfhosted#email
 - Monitoring
 - Metric & Metric Collection
 - Network Configuration Management
 - Newsletter
 - NoSQL
 - Packaging
 - Project Management
 - Queuing
 - RDBMS
 - Remote Management
 - Security: see awesome-security
 - Service Discovery
 - Software Containers
 - SSH: see awesome-ssh
 - Statistics: see awesome-selfhosted#analytics
 - Status Pages
 - Ticketing systems: see awesome-selfhosted#ticketing
 - Troubleshooting
 - Version control
 - Virtualization
 - VPN
 - XMPP: see awesome-selfhosted#xmpp
 - Web
 - Wiki Software: see awesome-selfhosted#wikis, Sysadmin Wikis: see #wikis
 
 - Resources
 
Automation
Automation build.
- Apache Ant - Automation build tool, similar to make, written in Java.
 - Apache Maven - Build automation tool mainly for Java.
 - Bazel - Google's build system.
 - GNU Make - The most popular automation build tool for many purposes.
 - Gradle - Another build automation system.
 - Rake - Build automation tool similar to Make, written in and extensible in Ruby.
 
Backups
Backup software.
- Amanda - Client-server model backup tool.
 - Bareos - A fork of Bacula backup tool.
 - Backupninja - Lightweight, extensible meta-backup system.
 - BorgBackup - A fork of Attic deduplicating backup program written in Python.
 - Brebis - A fully automated backup checker
 - Burp - Network backup and restore program.
 - Duplicity - Encrypted bandwidth-efficient backup using the rsync algorithm.
 - Elkarbackup - Backup solution based on RSnapshot with a simple web interface
 - Lsyncd - File Monitor which spawns a process to synchronize the changes (rsync by default).
 - Obnam - An easy, secure, snapshots-based backup program with data de-duplication.
 - Rdiff-backup - An easy A remote incremental backup of all your files.
 - Rsnapshot - Filesystem Snapshotting Utility.
 - Shield - A pluggable architecture for backup and restore of database systems.
 - Snebu – Snapshot backup with global multi-client deduplication and transparent compression.
 - UrBackup - Another client-server backup system.
 - DREBS - AWS EBS backup script that supports strategies.
 - ZBackup - A versatile deduplicating backup tool.
 
Build and software organization tools
Build and software organization tools.
- EasyBuild - EasyBuild builds software and modulefiles for High Performance Computing (HPC) systems in an efficient way.
 - environment-modules Lmod - Lmod is a Lua based module system that easily handles the MODULEPATH Hierarchical problem.
 - HPCBIOS - HPCBIOS is an effort to setup a common, well-documented and reproducible, environment spanning across multiple HPC systems & sites, inclusive of documentation.
 
ChatOps
Conversation-driven development and management. See https://www.reddit.com/r/chatops for more information.
- CloudBot - The simple, fast, expandable Python IRC bot.
 - Eggdrop - the world's most popular IRC bot, designed for flexibility and ease of use, and is freely distributable under the GNU GPL.
 - 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.
 - Abot - A digital assistant framework in Go.
 
Client management
Managing software on desktop computers.
- Chocolatey – Windows CLI package manager written in .NET/PS, based on NuGet.
 - just-install – Python script for downloading and silently installing MSI files.
 - OCS Inventory NG - Inventory, deployment and network scan.
 - Opsi (open PC server integration) - Client Management for Windows based on Debian.
 - WAPT - Network-wide (un)installation, configuration and upgrades of Windows based software.
 - WPKG - Software deployment, upgrade and removal program for Windows.
 
Cloning
Cloning software.
- Clonezilla - Partition and disk imaging/cloning program.
 - Fog - Another computer cloning solution.
 
Cloud Computing
- AppScale - 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.
 - Cracow Cloud One - Polish Private Cloud - The CC1 system provides a complete solution for Private Cloud Computing.
 - HPE Helion Eucalyptus - Private cloud software with AWS compatibility.
 - Flynn - PaaS
 - Mesos - Develop and run resource-efficient distributed systems.
 - OpenNebula - User-driven cloud management platform for sysadmins and devops.
 - Openshift - PaaS product from Red Hat.
 - OpenStack - Build private and public clouds.
 - The Foreman - Complete lifecycle management tool for physical and virtual servers. FOSS.
 - Tsuru - Tsuru is an extensible 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.
 - Cloud Foundry - A Platform-as-a-Service suite to provide the orchestration services that make distributed apps a powerhouse of awesomeness.
 - Cloudify - TOSCA-based cloud orchestration software platform written in Python and YAML.
 - CloudSlang - Flow-based orchestration tool for managing deployed applications, with Docker capabilities.
 - Genesis - A template framework for multi-environment BOSH deployments.
 - Juju - Cloud orchestration tool which manages services as charms, YAML configuration and deployment script bundles.
 - Kubernetes - Orchestration system for Docker containers - (Source Code, Documentation) 
ApacheGo - 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.
 - Spruce - A tool that merges separate YAML files into one. Works well with Genesis.
 - StackStorm - Event Driven Operations and ChatOps platform for infrastructure management. Written in Python
 
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 - Available as free software under the MIT License.
 
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.
- i-doit - IT Documentation and CMDB.
 - iTop - Complete ITIL web based service management tool.
 - Ralph - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
 - 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.
 - netbox - IP address management (IPAM) and data center infrastructure management (DCIM) tool
 
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.
 - 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.
 - CapsuleCD - CD script for automating package/library releases (npm, cookbooks, gems, pip, jars, etc).
 - concourse - A modern tool to gain visibility on the CI/CD pipeline. The flexible, declarative DSL is easy to learn and powerful to use.
 - 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 - Continuous delivery server.
 - Jenkins - An extendable continuous integration server.
 
Control Panels
Web hosting and server or service control panels
- Web hosting
- 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 - Hosting panel for Linux based on webmin.
 
 - DNS
- Atomia DNS - DNS management system.
 - PDNS Gui - WebGUI which aids in administering domains and records for PowerDNS with MySQL.
 - Poweradmin - Friendly web-based DNS administration tool for PowerDNS server.
 
 - Revision Control
- iF.SVNAdmin - WebGUI to manage Subversion repositories and User/Group permissions.
 - SCM-Manager - The easiest way to share and manage your Git, Mercurial and Subversion repositories.
 - WebSVN - Opensource web subversion repository browser.
 
 - Virtualization
- Feathur - VPS Provisioning and Management Software.
 - Panamax - Project that makes deploying complex containerized apps as easy as Drag-and-Drop.
 - OpenVZ Web Panel - Web panel to control OpenVZ virtual machines.
 - WebVirtMgr - libvirt-based Web interface for managing virtual machines.
 
 - Server
 
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.
- Camlistore - A set of open source formats, protocols, and software for modeling, storing, searching, sharing and synchronizing data.
 - 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.
 - Go IPFS - Implementation of IPFS, a global, versioned, peer-to-peer filesystem that seeks to connect all computing devices with the same system of files.
 - HDFS - Distributed, scalable, and portable file-system written in Java for the Hadoop framework.
 - Lustre - 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.
 - Ori Filesystem - A Secure Distributed File System built for offline operation.
 - Swift - A highly available, distributed, eventually consistent object/blob store.
 - 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
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.
 
Editors
Open source code editors.
- Atom - A hackable text editor from Github.
 - Brackets - 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.
 - KDevelop - IDE by the people behind KDE.
 - 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.
 - Visual Studio Code - An open source cross-platform extensible code editor from Microsoft
 - Nano - Easy to use, customizable text editor.
 
Identity Management
LDAP servers and other tools to manage accounts and identities.
LDAP
- 389 Directory Server - Developed by Red Hat.
 - Apache Directory Server - Apache Software Foundation project written in Java.
 - FreeRADIUS - High performance and highly configurable multi-protocol policy/authentication server, supporting RADIUS, DHCPv4 and VMPS.
 - OpenDJ - Fork of OpenDS.
 - OpenDS - Another directory server written in Java.
 - OpenLDAP - Developed by the OpenLDAP Project.
 
Tools and web interfaces
- Fusion Directory - Improve the Management of the services and the company directory based on OpenLDAP.
 - FreeIPA - Security management solution, can manage LDAP, KRB, DNS, sudo, and more.
 - Indieauth - Sign in with your domain name (using the rel-me-auth protocol).
 - Libravatar - Libravatar is a service which delivers your avatar (profile picture) to other websites.
 - LDAP Account Manager (LAM) - Web frontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory.
 - OpenID - A Simple Identity layer on top of OAuth 2.0.
 - OSIAM - Secure identity management solution providing REST based services for authentication and authorization.
 - Samba – Active Directory and CIFS protocol implementation.
 
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.
 - OPSI - Hardware and software inventory, deployment, and patching for Linux and Windows.
 - 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.
 
Log Management
Log management tools: collect, parse, visualize ...
- 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.
 - GoAccess - Real-time web log analyzer and interactive viewer that runs in a terminal or through the browser. (Source Code) 
MITC - Graylog - 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 Clients
- Claws Mail - Old school email client (and news reader), based on GTK+.
 - ImapSync – Simple IMAP migration tool for copying mailboxes to other servers.
 - Mutt - Small but very powerful text-based mail client.
 - N1 - Extensible mail client.
 - Sylpheed – Still developed predecessor to Claws Mail, lightweight mail client.
 - Thunderbird - Free email application that's easy to set up and customize.
 
Monitoring
Monitoring software.
- Adagios - Web based Nagios interface for configuration and monitoring (replacement to the standard interface), and a REST interface, SourceCode, Documentation)
 - Alerta - Distributed, scaleable and flexible monitoring system.
 - Bloonix - Bloonix is a monitoring solution that helps businesses to ensure high availability and performance. 
GPLv3Perl - bolo - A Do-it-Yourself monitoring framework built to gather metrics, mine data and report on the systems in your network.
 - Bosun - Monitoring and alerting system by Stack Exchange (Source Code, Documentation) 
MITGo - Cacti - Web-based network monitoring and graphing tool.
 - Cabot - Monitoring and alerts, similar to PagerDuty.
 - cadvisor - Analyzes resource usage and performance characteristics of running containers (Source Code) 
ApacheGo - check_mk - Collection of extensions for Nagios.
 - Dash - A low-overhead monitoring web dashboard for a GNU/Linux machine.
 - Flapjack - Monitoring notification routing & event processing system.
 - Healthchecks - Monitoring for cron jobs, background services and scheduled tasks.
 - Icinga - Nagios fork that has since lapped nagios several times. Comes with the possibility of clustered monitoring - (Source Code) - 
GPLv2 - LibreNMS - Fully featured network monitoring system that provides a wealth of features and device support.
 - Monit - Small 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.
 - OMD - The Open Monitoring Distribution.
 - PhpSysInfo - A customizable PHP script that displays information about your system nicely.
 - psdash - A linux system information web dashboard using psut ils and flask.
 - pyDash - Small web-based monitoring dashboard for linux.
 - Riemann - Flexible and fast events processor allowing complex events/metrics analysis.
 - Sensu - Monitoring framework.
 - Sentry - Application monitoring, event logging and aggregation.
 - ServerStatus BotoX - Display and monitor your servers statistics in a beatiful way.
 - ServerStatus moejda - Server Status website script, displays uptime (days), free RAM, free HDD
 - Shinken - Another monitoring framework.
 - Thruk - Multibackend monitoring web interface with support for Naemon, Nagios, Icinga and Shinken.
 - Uchiwa - Simple dashboard for sensu.
 - 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.
 
Metric & Metric Collection
Metric gathering and display software.
- 
Collectors only
- Diamond - Python based statistic collection daemon.
 - Collectd - System statistic collection daemon.
 - Collectl - High precision system performance metrics collecting tool.
 - PGObserver - Monitoring solution for PostgreSQL databases that also works with AWS RDS.
 - Statsd - Application statistic listener.
 - tcollector - System statistic collection daemon written in Python for OpenTSDB
 
 - 
Dashboards
- Grafana - A Graphite & InfluxDB Dashboard and Graph Editor.
 - Ganglia - High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
 - RRDtool - Industry standard, high performance data logging and graphing system for time series data.
 - 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.
 - Facette - Time series data visualization and graphing software written in Go.
 - Freeboard - A damn-sexy front-end real-time dashboard for the internet of things. Transforms raw JSON into delicious UI.
 - Netdata - Real-time performance monitoring for Linux systems with plugin support.
 
 - 
Storage
 - 
Packages
- Prometheus - Service monitoring system and time series database.
 - Packetbeat - Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
 - Graphite - Scalable graphing server.
 
 
Network Configuration Management
Network configuration management tools.
- GestióIP - An automated web based IPv4/IPv6 IP Address Management tool.
 - 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.
 
Newsletters
Newsletter software.
- DadaMail - Mailing List Manager, written in Perl.
 - phpList - Newsletter manager written in PHP.
 - LibreMailer - Libre Mailer is a modest and simple web based email marketing application.
 - Lewsnetter - E-mail marketing application (create and send e-mail newsletter via SES). Includes subscription management, delivery, bounce and complaint notification, templates, and some stats.
 
NoSQL
NoSQL databases.
- Column-Family
- 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 - Distributed document store database, focuses on JSON.
 
 - Graph
 - Key-Value
 
Comparison of NoSQL servers: http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis
Packaging
- 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.
 
Project Management
Web-based project management and bug tracking systems: see https://github.com/Kickball/awesome-selfhosted#project-management
Queuing
- ActiveMQ - Java message broker.
 - BeanstalkD - A simple, fast work queue.
 - Gearman - Fast multi-language queuing/job processing platform.
 - Kafka - Extremely high performance publish/subscribe message system.
 - NSQ - A realtime distributed messaging platform.
 - RabbitMQ - Robust, fully featured, cross distro queuing system.
 - ZeroMQ - Lightweight queuing system.
 
RDBMS
Relational DBMS.
- Firebird - True universal 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.
- adminer - Database management in a single PHP file (Source code)
 
 - Percona Server - Enhanced, drop-in MySQL replacement.
 - PostgreSQL - Object-relational database management system (ORDBMS).
 - PostgreSQL-XL - Scalable PostgreSQL-based database cluster.
 - SQLite - Library that implements a self-contained, serverless, zero-configuration, transactional SQL DBS.
 
Remote Management
- Tiger VNC - TigerVNC is a high-performance, platform-neutral implementation of VNC (Virtual Network Computing), a client/server application that allows users to launch and interact with graphical applications on remote machines.
 - Remmina - A Feature rich remote desktop application for linux and other unixes.
 - X2go - X2Go is an open source remote desktop software for Linux that uses the NX technology protocol.
 
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.
 - etcd - distributed K/V-Store, authenticating via SSL PKI and a REST HTTP Api for shared configuration and service discovery.
 - ZooKeeper - ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
 
Software Containers
Operating system–level virtualization.
- Docker - 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.
 
Status Pages
- Cachet - Status page system written in PHP.
 - Stashboard - Status page for cloud services and APIs.
 - System Status Dashboard (SSD) - Overview about an organization's infrastructure health status.
 - Staytus - Staytus is a complete solution for publishing the latest information about any issues with your web applications, networks or services.
 
Troubleshooting
Troubleshooting Tools.
- grml – bootable Debian Live CD with powerful CLI tools.
 
- mitmproxy - A Python tool used for intercepting, viewing and modifying network traffic. Invaluable in troubleshooting certain problems.
 - perf-tools - Performance analysis tools based on Linux perf_events (aka perf) and ftrace.
 - Sysdig - Capture system state and activity from a running Linux instance, then save, filter and analyze.
 - Dripcap - Caffeinated Packet Analyzer.
 - Wireshark - The world's foremost network protocol analyzer.
 
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
Virtualization software.
- Archipel - XMPP based virtualization management platform.
 - ConVirt - Provides the core functionality for centrally managing your KVM or Xen virtualized environment.
 - 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.
 - OpenNode - Builds open-source infrastructure management software and implements cloud systems.
 - Otto - Development and deployment system designed as the successor to Vagrant.
 - 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 - Virtualization management solution.
 - QEMU - QEMU is a generic 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.
 - XenServer - Turnkey virtualization platform based on CentOS distribution, using Xen and an extended toolstack/API.
 
VPN
VPN software.
- ocserv - Cisco AnyConnect-compatible VPN server
 - 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
Web servers.
- Algernon - Web/application server that supports Lua, live-reload, templates, Sass and HTTP/2.
 - Apache - Most popular web server.
 - Caddy - Lightweight, general-purpose web server supporting HTTP/2, automatic TLS and easy configuration. Written in Go.
 - Cherokee - Lightweight, high-performance web server/reverse proxy.
 - Hiawatha - Prioritises security, simplicity and performance.
 - 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.
 - Varnish - HTTP based web application accelerator focusing on optimizing caching and compression.
 
Resources
Various resources, such as books, websites and articles, for improving your skills and knowledge.
Blogs
- Code as Craft - Etsy's Ops blog, lots of technical posts.
 - DevOpsGuys - Devops consultants who blog about operations.
 - Rackspace Developers - Slightly biased blog with lots of Devops Topics.
 
Books
Sysadmin related books.
- Codex - How to deploy Cloud Foundry PaaS on infrastructures like AWS, OpenStack, Azure by Stark & Wayne, LLC.
 - The Linux Command Line - A book about the Linux command line by William Shotts.
 - The Phoenix Project: A Novel about IT, DevOps, and Helping Your Business Win - How DevOps techniques can fix the problems that happen in IT organizations.
 - The Practice of System and Network Administration - 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 - Is a methodology designed to jumpstart implementation of controls and process improvement.
 - UNIX and Linux System Administration Handbook (ISBN-13: 978-0131480056) - Approaches system administration from a practical perspective.
 
Communities / Forums
For the social people.
- ArsTechnica OpenForum – IT Forum which is attached to a large news site.
 - Reddit - Really, really large bulletin board system.
- /r/Linux - News and information about Linux.
 - /r/LinuxQuestions
 - /r/SysAdmin
 
 - Spiceworks Community – General enterprise IT news and small articles.
 - StackExchange Network – Q&A communities.
- Server Fault – StackExchange community for system and network administrators.
 
 
Newsletters
- Servers for Hackers - Newsletter for programmers who find themselves needing to know their way around a server.
 - Web Operations Weekly - A weekly newsletter on Web operations, infrastructure, performance, and tooling, from the browser down to the metal.
 
Repositories
Software package repositories.
- AlternativeTo - Find alternatives to software you know and discover new software.
 
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).
 - IUS - Community project that provides RPM packages for newer versions of select software for Enterprise Linux distributions.
 - 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.
 
Websites
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.
 
Wikis
Useful Wikis for Sysadmins – not to be confused with Wiki software.
- ArchWiki – Arch Linux Wiki which has really nice written articles valid for other distros.
 - Gentoo Wiki - Gentoo Linux Wiki with a lot in-detail description of Linux components.
 
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International license.
