Track Awesome Sysadmin Updates Weekly

A curated list of amazingly awesome open source sysadmin resources.

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[ Daily / Weekly / Overview ]

Nov 14 - Nov 20, 2022

Web / Metric & Metric Collection

• Traefik - Traefik is a leading modern reverse proxy and load balancer.

Oct 31 - Nov 06, 2022

Identity Management / Single Sign-On (SSO)

• KeyCloak - Open Source Identity and Access Management (Source Code (⭐14k)) Apache-2.0 Java

Oct 10 - Oct 16, 2022

Cloud Orchestration

• Nomad - Simple and flexible orchestrator for Docker, Podman, executables, Java, and QEMU - (Source Code (⭐13k), Documentation) MPL-2.0 Go

Oct 03 - Oct 09, 2022

Editors

• Atom Community (⭐428) - A fork of atom (⭐59k) A hackable text editor from Github.

• VSCodium (⭐18k) - An open source cross-platform extensible code editor based on VS Code by Microsoft removing their non-free additions.

Packaging / Metric & Metric Collection

• aptly - Swiss army knife for Debian repository management. (Source Code (⭐2.2k)) MIT Go

Remote Management / Metric & Metric Collection

• 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.

Sep 26 - Oct 02, 2022

Monitoring / Single Sign-On (SSO)

• checkmk - Comprehensive solution for monitoring of applications, servers, and networks. (Source Code (⭐834)) Python/PHP

Sep 19 - Sep 25, 2022

IT Asset Management / Single Sign-On (SSO)

• OCS Inventory NG - Asset management and deployment solution for all devices in your IT Department. (Source Code) GPL-2.0 PHP/Perl

• OPSI - Hardware and software inventory, client management, deployment, and patching for Linux and Windows. (Source Code) GPL-3.0/AGPL-3.0 OVF/Python

• RackTables - Datacenter and server room asset management like document hardware assets, network addresses, space in racks, networks configuration. (Source Code (⭐635), Demo) GPL-2.0 PHP

• Ralph - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks. (Source Code (⭐1.9k), Demo (⭐1.9k)) Apache-2.0 Python/Docker

• Snipe IT - Asset & license management software. (Source Code (⭐7k)) AGPL-3.0 PHP

Sep 12 - Sep 18, 2022

Monitoring / Metric & Metric Collection

• Packages
  • Graphite - Scalable graphing server.
  • Packetbeat - Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
  • Prometheus - Service monitoring system and time series database.
  • VictoriaMetrics (⭐7.4k) - Service monitoring system and time series database.

Jul 25 - Jul 31, 2022

NoSQL / Metric & Metric Collection

• 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.
  • eXist-DB - Open Source XML Database

Jul 11 - Jul 17, 2022

Monitoring / Single Sign-On (SSO)

• Scrutiny (⭐1.8k) - Hard Drive S.M.A.R.T Monitoring, Historical Trends & Real World Failure Thresholds

May 23 - May 29, 2022

VPN / Metric & Metric Collection

• Headscale (⭐9k) - Self-hostable fork of Tailscale, cross-platform clients, simple to use, built-in (currently experimental) monitoring tools.

Feb 14 - Feb 20, 2022

Monitoring / Single Sign-On (SSO)

• Icinga - Nagios fork that has since lapped nagios several times. Comes with the possibility of clustered monitoring - (Source Code) - GPLv2

Jan 31 - Feb 06, 2022

Control Panels

• Revision Control: see awesome-selfhosted#project-management (⭐108k)

VPN / Metric & Metric Collection

• Firezone - WireGuard based VPN Server and Firewall.

Jan 17 - Jan 23, 2022

Identity Management / Tools and web interfaces

• ZITADEL (⭐1.7k) - Cloud-native Identity & Access Management solution providing a platform for secure authentication, authorization and identity management.

Dec 13 - Dec 19, 2021

Log Management / Single Sign-On (SSO)

• Loki - horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus.

Nov 15 - Nov 21, 2021

Backups

• Backupninja - Lightweight, extensible meta-backup system.

Oct 26 - Nov 01, 2020

Client management

• just-install – Python script for downloading and silently installing MSI files.

Oct 12 - Oct 18, 2020

Continuous Integration & Continuous Deployment

• CDS - Enterprise-Grade Continuous Delivery & DevOps Automation Open Source Platform (Source Code (⭐4k)) BSD-3-Clause Go

Distributed Filesystems

• Perkeep (née Camlistore) - A set of open source formats, protocols, and software for modeling, storing, searching, sharing and synchronizing data.

Jul 27 - Aug 02, 2020

Continuous Integration & Continuous Deployment

• werf - Open Source CI/CD tool for building Docker images and deploying to Kubernetes via GitOps. (Source Code (⭐3.4k)) Apache-2.0 Go

Jul 06 - Jul 12, 2020

VPN / Metric & Metric Collection

• Nebula (⭐11k) - A scalable p2p VPN with a focus on performance, simplicity and security.

Jun 22 - Jun 28, 2020

Distributed Filesystems

• Minio - Minio is an open source object storage server compatible with Amazon S3 APIs. (Source Code (⭐36k)) Apache-2.0 Go

Monitoring / Single Sign-On (SSO)

• Bloonix - Bloonix is a monitoring solution that helps businesses to ensure high availability and performance. GPLv3 Perl

Web / Metric & Metric Collection

• Apache - A robust, commercial-grade, featureful implementation of an HTTP (Web) server.

May 18 - May 24, 2020

Diagramming

• Diagrams.net - A.K.A. Draw.io. Easy to use Diagram UI with a plethora of templates.

May 11 - May 17, 2020

Diagramming

• DrawThe.Net - Javascript tool that uses a YAML-formatted input to programmatically create large, complex, and visually solid diagrams.

• Mermaid - Javascript module with a unique, easy, shorthand syntax. Integrates into several other tools like Grafana.

Apr 13 - Apr 19, 2020

VPN / Metric & Metric Collection

• WireGuard - Very fast VPN based on elliptic curve and public key crypto.

Mar 16 - Mar 22, 2020

Continuous Integration & Continuous Deployment

• Concourse - Concourse is a CI tool that treats pipelines as first class objects and containerizes every step along the way. (Demo, Source Code (⭐6.6k)) Apache-2.0 Go

Dec 16 - Dec 22, 2019

Client management

• OCS Inventory NG - Inventory, deployment and network scan.

Nov 18 - Nov 24, 2019

Domains

• DnsControl - Opinionated platform for seamlessly managing your DNS configuration across any number of DNS hosts, both in the cloud or in your own infrastructure.

• octoDNS (⭐2.5k) - Set of tools and patterns that make it easy to manage your DNS records across multiple providers.

IT Asset Management / Single Sign-On (SSO)

• GLPI - Information Resource-Manager with an additional Administration Interface.

Nov 11 - Nov 17, 2019

Build and software organization tools

• Spack - A flexible package manager that supports multiple versions, configurations, platforms, and compilers.

Nov 04 - Nov 10, 2019

Monitoring / Single Sign-On (SSO)

• Netdata - Distributed, real-time, performance and health monitoring for systems and applications. Runs on Linux, FreeBSD, and MacOS.

Oct 07 - Oct 13, 2019

Virtualization / Metric & Metric Collection

• XCP-ng - Based on Citrix XenServer, XCP-ng is a fully open source virtualization platform.

Sep 23 - Sep 29, 2019

Identity Management / Tools and web interfaces

• Smallstep Certificates - A private certificate authority (X.509 & SSH) and related tools for secure automated certificate management.

Jul 22 - Jul 28, 2019

Automation

• Bolt - You can use Bolt to run one-off tasks, scripts to automate the provisioning and management of some nodes, you can use Bolt to move a step beyond scripts, and make them shareable.

Backups

• BackupPC - BackupPC is a high-performance system for backing up to disk.

• Duplicati - Multiple backends, encryption, web-ui and multi-OS backup tool.

Identity Management / Tools and web interfaces

• easy-rsa (⭐3.3k) - bash script to build and manage a PKI CA.

Repositories / Debian-based distributions

• deb.sury.org - Repository with LAMP updated packages for Debian and Ubuntu.

May 13 - May 19, 2019

Identity Management / Tools and web interfaces

• Pomerium - An identity and context aware access-proxy inspired by BeyondCorp.

Mar 11 - Mar 17, 2019

Continuous Integration & Continuous Deployment

• Buildbot - Python-based toolkit for continuous integration. (Source Code (⭐4.9k)) GPL-2.0 Python

• CapsuleCD - CD script for automating package/library releases (npm, cookbooks, gems, pip, jars, etc). (Source Code (⭐96)) MIT Go

• drone - Drone is a Continuous Delivery platform built on Docker, written in Go. (Source Code (⭐26k)) Apache-2.0 Go

• Factor - Programmatically define and run workflows to connect configuration management, source code management, build, continuous integration, continuous deployment and communication tools. (Source Code (⭐81)) MIT Ruby

• GitLab CI - Gitlab's built-in, full-featured CI/CD solution. (Source Code MIT Ruby

• GoCD - Continuous delivery server. (Source Code (⭐6.6k)) Apache-2.0 Java/Ruby

• GolangCI - Open Source automated code review service for Go integrated with GitHub pull requests. (Source Code (⭐54)) AGPL-3.0 Go

• Jenkins - Continuous Integration Server. (Source Code (⭐20k)) MIT Java

• Laminar - Fast, lightweight, simple and flexible Continuous Integration. (Source Code (⭐236)) GPL-3.0 C++

• PHP Censor (⭐658) - Open source self-hosted continuous integration server for PHP projects. BSD-2-Clause PHP

• PHPCI - Free and open source continuous integration specifically designed for PHP. (Source Code (⭐2.4k)) BSD-2-Clause PHP

• Strider - Open Source Continuous Deployment / Continuous Integration platform. (Source Code (⭐4.6k)) MIT Nodejs

Feb 18 - Feb 24, 2019

Monitoring / Single Sign-On (SSO)

• NetXMS - Open Source network and infrastructure monitoring and management. (Source Code (⭐130))

Dec 24 - Dec 30, 2018

Cloud Computing

• Eucalyptus - Private cloud software with AWS compatibility.

DNS

• CoreDNS - Flexible DNS server written on Go.

Sep 24 - Sep 30, 2018

Software Containers / Metric & Metric Collection

• Docker - Platform for developers and sysadmins to build, ship, and run distributed applications.
  • Docker Compose - Define and run multi-container Docker applications.
  • Docker Swarm - Manage cluster of Docker Engines.
  • Portainer - Simple management UI for Docker.

Aug 27 - Sep 02, 2018

Version control / Metric & Metric Collection

• Darcs - Patch-based distributed version control (more info: wiki)

Jul 23 - Jul 29, 2018

Monitoring / Single Sign-On (SSO)

• EdMon (⭐4) - A command-line monitoring application helping you to check that your hosts and services are available, with notifications support. MIT Java

May 21 - May 27, 2018

Identity Management / Tools and web interfaces

• OpenID Connect - A Simple Identity layer on top of OAuth 2.0.

May 07 - May 13, 2018

NoSQL / Metric & Metric Collection

• Key-Value
  • LevelDB (⭐31k) - 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.

Apr 09 - Apr 15, 2018

Backups

• Restic - Secure, remote backup tool. Designed to be easy, fast, verifiable and efficient.

Monitoring / Single Sign-On (SSO)

• ElastiFlow (⭐2.4k) - Network flow Monitoring (Netflow, sFlow and IPFIX) with the Elastic Stack.

Apr 02 - Apr 08, 2018

VPN / Metric & Metric Collection

• sshuttle (⭐9.1k) - Poor man's VPN.

Jan 29 - Feb 04, 2018

Log Management / Single Sign-On (SSO)

• Hindsight - Stream processing system which may be used for log aggregation (Replaces Heka).

Jan 22 - Jan 28, 2018

Backups

• rclone - a command line program to sync files and directories to and from several cloud storage systems/providers.

Editors

• Micro - A modern and intuitive terminal-based text editor

Monitoring / Metric & Metric Collection

• Collectors only
  • Diamond (⭐1.7k) - Python based statistic collection daemon.
  • Collectd - System statistic collection daemon.
  • Collectl - High precision system performance metrics collecting tool.
  • PGObserver (⭐310) - Monitoring solution for PostgreSQL databases that also works with AWS RDS.
  • Statsd (⭐17k) - Application statistic listener.
  • tcollector - System statistic collection daemon written in Python for OpenTSDB
  • Telegraf (⭐12k) - The plugin-driven server agent for collecting & reporting metrics.

Jan 08 - Jan 14, 2018

Cloud Orchestration

• StackStorm - Event Driven Operations and ChatOps platform for infrastructure management. Written in Python.

• Terraform - Terraform works with many cloud providers and creates infrastructure from code.

Nov 27 - Dec 03, 2017

Automation

• 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 (⭐2.2k) - Build automation tool similar to Make, written in and extensible in Ruby.

Backups

• Amanda - Client-server model backup tool.

• Bareos - A fork of Bacula backup tool.

• Barman - Backup and Recovery Manager for disaster recovery of PostgreSQL servers.

• BorgBackup (⭐8.8k) - A fork of Attic deduplicating backup program written in Python.

• Burp - Network backup and restore program.

• Duplicity - Encrypted bandwidth-efficient backup using the rsync algorithm.

• Elkarbackup (⭐346) - Backup solution based on RSnapshot with a simple web interface

• Rdiff-backup - An easy A remote incremental backup of all your files.

• Rsnapshot - Filesystem Snapshotting Utility.

• Shield (⭐289) - 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 (⭐35) - AWS EBS backup script that supports strategies.

• ZBackup - A versatile deduplicating backup tool.

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

• CloudBot (⭐265) - 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 (⭐148) - A chatops automation framework in Go.

• Lita - A robot companion for your company's chat room.

• Abot (⭐2.2k) - A digital assistant framework in Go.

Client management

• Chocolatey – Windows CLI package manager written in .NET/PS, based on NuGet.

• WAPT - Network-wide (un)installation, configuration and upgrades of Windows based software.

• WPKG - Software deployment, upgrade and removal program for Windows.

Cloning

• Clonezilla - Partition and disk imaging/cloning program.

• Fog - Another computer cloning solution.

Cloud Computing

• AppScale (⭐2.4k) - Cloud software with Google App Engine compatibility.

• 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.

• Mesos - Develop and run resource-efficient distributed systems.

• 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.

Virtualization / Metric & Metric Collection

• Archipel - XMPP based virtualization management platform.

• OpenNebula - Flexible enterprise cloud made simple.

• 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.

• OpenNode - Builds open-source infrastructure management software and implements cloud systems.

• 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.

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 (⭐55) - 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 (⭐94k), Documentation) Apache Go

• 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.

• Spruce (⭐364) - A tool that merges separate YAML files into one. Works well with Genesis (⭐55).

Configuration Management

• Salt - It's written in Python.

• 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.

Code Review

• 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.

Configuration Management Database

• i-doit - IT Documentation and CMDB.

• iTop - Complete ITIL web based service management tool.

• Clusto (⭐289) - 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 (⭐11k) - IP address management (IPAM) and data center infrastructure management (DCIM) tool

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.
  • nsedit (⭐189) - nsedit is a DNS editor for PowerDNS, working with PowerDNS's new API.
  • PDNS Gui (⭐26) - WebGUI which aids in administering domains and records for PowerDNS with MySQL.
  • Pi-hole - A blackhole for Internet Advertisements with a gui for managing and monitoring
  • Poweradmin - Friendly web-based DNS administration tool for PowerDNS server.

• Virtualization
  • OpenVZ Web Panel (⭐287) - Web panel to control OpenVZ virtual machines.

• Server
  • Ajenti - Control panel for Linux and BSD.
  • Cockpit - New multi-server web interface for Linux servers written in C.
  • Webmin - Linux server control panel.

Deployment Automation

• 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).

• munki - Webserver-based repository of packages and package metadata, that allows macOS administrators to manage software installs.

• Rocketeer - PHP task runner and deployment tool.

• sup (⭐2.4k) - Super simple deployment tool - just Unix - think of it like 'make' for a network of servers.

• Vlad the Deployer (⭐351) - Deployment automation (rake based).

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.

• Go IPFS (⭐14k) - 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.

• 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.

• SheepDog - A distributed Blockdevice, Rest, QEMU and distributed Filesystem storage.

• 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

• 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.

Domains

• DomainMOD - Manage your domains and other internet assets in a central location.

Editors

• 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 (⭐206) - Git-backed real-time collaborative code editing.

• KDevelop - IDE by the people behind KDE.

• Light Table - The next generation code editor.

• Notepad++ - GPLv2 multi-language editor with syntax highlighting for Windows.

• TextMate (⭐14k) - A graphical text editor for OS X.

• Vim - A highly configurable text editor built to enable efficient editing.

• Nano - Easy to use, customizable text editor.

Identity Management / 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.

• FreeIPA - Based on 389-DS. Includes Kerberos, DNS, as well as host based access control.

Identity Management / Tools and web interfaces

• Fusion Directory - Improve the Management of the services and the company directory based on OpenLDAP.

• 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.

• OSIAM - Secure identity management solution providing REST based services for authentication and authorization.

• Samba – Active Directory and CIFS protocol implementation.

• BounCA - A personal SSL Key / Certificate Authority web-based tool for creating self-signed certificates.

Log Management / Single Sign-On (SSO)

• 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 (⭐15k)) MIT C

• Graylog - Pluggable Log and Event Analysis Server with Alerting options.

• Kibana - Visualize logs and time-stamped data.

• Logstash - Tool for managing events and logs.

• Octopussy - Log Management Solution (Visualize / Alert / Report).

Mail Clients / Single Sign-On (SSO)

• 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.

• Nylas Mail - 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 / Single Sign-On (SSO)

• Adagios - Web based Nagios interface for configuration and monitoring (replacement to the standard interface), and a REST interface, SourceCode (⭐331), Documentation (⭐331))

• Alerta (⭐2.2k) - Distributed, scaleable and flexible monitoring system.

• 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 (⭐3.3k), Documentation) MIT Go

• Cacti - Web-based network monitoring and graphing tool.

• Cabot - Monitoring and alerts, similar to PagerDuty.

• cadvisor (⭐14k) - Analyzes resource usage and performance characteristics of running containers (Source Code (⭐14k)) Apache Go

• Dash (⭐10k) - A low-overhead monitoring web dashboard for a GNU/Linux machine.

• eZ Server Monitor - A lightweight and simple dashboard monitor for Linux, available in Web and Bash application.

• Flapjack - Monitoring notification routing & event processing system.

• Healthchecks - Monitoring for cron jobs, background services and scheduled tasks.

• 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.

• Observium - SNMP monitoring for servers and networking devices. Runs on linux.

• OMD - The Open Monitoring Distribution.

• Performance Co-Pilot - Lightweight, distributed system performance and analysis framework.

• PhpSysInfo - A customizable PHP script that displays information about your system nicely.

• PHP Server Monitor - Open source tool to monitor your servers and websites

• psdash (⭐2.4k) - 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.

• rtop (⭐2k) - an interactive, remote system monitoring tool based on SSH.

• Sensu - Monitoring framework.

• ServerStatus BotoX (⭐775) - Display and monitor your servers statistics in a beatiful way.

• ServerStatus moejda (⭐354) - Server Status website script, displays uptime (days), free RAM, free HDD

• Thruk - Multibackend monitoring web interface with support for Naemon, Nagios, Icinga and Shinken.

• Uchiwa - Simple dashboard for sensu.

• Vector (⭐3.6k) - An on-host performance 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.

Network Configuration Management / Metric & Metric Collection

• GNS3 - Graphical network simulator that provides a variety of virtual appliances - (Source Code (⭐1.7k), Documentation) - GPLv3

• Oxidized (⭐2.1k) - A modern take on network device configuration monitoring with web interface and GIT storage.

• phpIPAM - Open source IP address management with PowerDNS integration.

• RANCID - Monitors network device's configuration and maintain history of changes.

• rConfig - Another network device configuration management tool.

• trigger (⭐547) - Robust network automation toolkit written in Python.

Newsletters / Metric & Metric Collection

• DadaMail - Mailing List Manager, written in Perl.

• phpList - Newsletter manager written in PHP.

• LibreMailer (⭐24) - Libre Mailer is a modest and simple web based email marketing application.

• Lewsnetter (⭐315) - E-mail marketing application (create and send e-mail newsletter via SES). Includes subscription management, delivery, bounce and complaint notification, templates, and some stats.

• 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.

Packaging / Metric & Metric Collection

• fpm (⭐11k) - Versatile multi format package creator.

• omnibus-ruby (⭐1.2k) - Full stack, cross distro packaging software (Ruby).

• packman - Full stack, cross distro packaging software (Python).

• tito (⭐354) - Builds RPMs for git-based projects.

Queuing / Metric & Metric Collection

• 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 / Metric & Metric Collection

• 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 (⭐5.5k))

• 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.

Service Discovery / Metric & Metric Collection

• Consul - Consul is a tool for service discovery, monitoring and configuration.

• Doozerd (⭐3.3k) - Doozer is a highly-available, completely consistent store for small amounts of extremely important data.

• etcd (⭐42k) - 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 / Metric & Metric Collection

• LXC - Userspace interface for the Linux kernel containment features.
  • LXD – a container "hypervisor" and a better UX for LXC.

• OpenVZ - Container-based virtualization for Linux.

Troubleshooting / Metric & Metric Collection

• 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.

• mtr - Network utility that combines traceroute and ping.

• perf-tools (⭐8.7k) - 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.

• Wireshark - The world's foremost network protocol analyzer.

Version control / Metric & Metric Collection

• 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.

VPN / Metric & Metric Collection

• 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

• strongSwan - Complete IPsec implementation for Linux.

• tinc - Distributed p2p VPN.

Web / Metric & Metric Collection

• Algernon - Web/application server that supports Lua, live-reload, templates, Sass and HTTP/2.

• 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 (⭐3.2k) - The uWSGI project aims at developing a full stack for building hosting services.

• 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.

Blogs / Metric & Metric Collection

• 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.

• RoseHosting Blog - Linux tutorials for installing and configuring various software through the Linux command line. Guides and introductions to different Linux technologies and applications. Tips and tricks you can do via the Linux command line and more.

Books / Metric & Metric Collection

• 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 / Metric & Metric Collection

• 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.

Repositories / Metric & Metric Collection

• AlternativeTo - Find alternatives to software you know and discover new software.

Repositories / 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 / RPM-based distributions

• Awesome SysAdmin @ LibHunt - Your go-to SysAdmin Toolbox. Based on the list here.

• 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 / RPM-based distributions

• 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.

Jun 27 - Jul 03, 2016

Remote Management / Metric & Metric Collection

• X2go - X2Go is an open source remote desktop software for Linux that uses the NX technology protocol.

Mar 21 - Mar 27, 2016

Remote Management / Metric & Metric Collection

• Remmina - A Feature rich remote desktop application for linux and other unixes.

Nov 16 - Nov 22, 2015

Monitoring / Metric & Metric Collection

• Storage
  • OpenTSDB - Store and server massive amounts of time series data without losing granularity.
  • KairosDB (⭐1.7k) - Fast distributed scalable time series database, fork of OpenTSDB 1.x.
  • InfluxDB - Distributed time series database with no external dependencies.

NoSQL / Metric & Metric Collection

• Graph
  • FlockDB (⭐3.3k) - Twitter's distributed, fault-tolerant graph database.
  • Neo4j - Graph database.

Aug 03 - Aug 09, 2015

Monitoring / Metric & Metric Collection

• 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 (⭐6.3k) - A damn-sexy front-end real-time dashboard for the internet of things. Transforms raw JSON into delicious UI.

Jul 07 - Jul 13, 2014

NoSQL / Metric & Metric Collection

• 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.