A curated list of free open source software tools and free/premium services for Sysadmin and DevOps.
- Sysadmin & DevOps Toolbox
- Analytics
- Benchmark
- Blacklist
- Client Billing Management & Invoice
- Cache
- Containers
- Content Management System (CMS)
- Control Panel
- Code Repository
- Collaboration
- Database (DB)
- Domain Name System (DNS)
- File Transfer Protocol (FTP)
- Forum
- Internet Relay Chat (IRC)
- ISO Templates
- Monitoring
- Programming
- Pastebin
- Really Simple Syndication (RSS)
- Storage
- Security
- Speed Test
- Terminal
- Virtual Private Network (VPN)
- Web Server
- Web Stack
- Webmail
- License
- Piwik - It aims to be a Free software alternative to Google Analytics
- byte-unixbench - The original BYTE UNIX benchmark suite, multiple tests are used to test various aspects of the system's performance
- Geekbench - Cross-platform processor benchmark, with a new scoring system that separates single-core and multi-core performance
- rblcheck - A simple PHP function that checks the provided IPv4 address against a set of blacklists
- BoxBilling - Billing and client management software
- Invoice Ninja - Invoice templates, free and open-source invoicing, integrate with Stripe, PayPal, Authorize, Dwolla and 45+ payment gateways
- Varnish - The high-performance HTTP accelerator
- LXC - An environment as close to possible as the one you'd get from a VM but without the overhead that comes with running a separate kernel and simulating all the hardware
- slabbed-or-not - Detect if your container is running under a hypervisor
- AnchorCMS - Anchor is a super-simple, lightweight blog system, made to let you just write
- Ghost - A simple, powerful publishing platform that allows you to share your stories with the world
- Pagekit - A modern Open Source CMS Intuitive. Modular. Flexible
- Pico - A stupidly simple & blazing fast, flat file CMS
- Ajenti - A Linux & BSD web admin panel
- Feathur - VPS Control Panel. Designed to have global administrators and individual users. Each administrator can control all of the VPS in the system. Each user can control any VPS assigned to them by an administrator
- ServerPilot - A secure control panel optimized for hosting WordPress and PHP websites on cloud servers
- Vesta Control Panel - Simple & clever hosting control panel
- GitList - An elegant and modern web interface for interacting with multiple git repositories
- KandanApp - A fast, secure and stable solution based on Rails
- Let's Chat - A self-hosted chat app for small teams
- MariaDB - One of the most popular database servers. Made by the original developers of MySQL
- MongoDB - The next-generation database that lets you create applications never before possible.
- PostgreSQL - A powerful, open source object-relational database system. It has more than 15 years of active development
- Redis - In-memory data structure store, used as database, cache and message broker.
- NSONE - NS1™ converges real-time user, network, and infrastructure data to optimize delivery of mission critical applications and websites
- Rage4 Networks - The Rage4 is fast, reliable and cost effective DNS service designed for high availability and performance
- vsftpd - A FTP server for UNIX systems, including Linux. It is secure and extremely fast
- esoTalk - A free, open-source forum software package built with PHP and MySQL. Flarum is the successor
- IRCAnywhere - IRCAnywhere web based multi-user IRC bouncer built for teams. An open source alternative to paid services such as IRCCloud
- Irssi - A terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins
- UnrealIRCd - A highly advanced IRCd with a strong focus on modularity, an advanced and highly configurable configuration file
- Waartaa - A web IRC client written in Meteor JS. It is aimed towards being an intuitive, collaborative IRC client across multiple devices of the user along with centralized logging
- Slate - A modern IRC client built with web technologies and node.js for OSX, Linux, and eventually Windows.
- Free Windows Templates For Kimsufi OVH - Install Windows on your Kimsufi server with just one command. Versions of Windows Server it supports: Windows 8.1 Pro, Windows 10 Pro, Windows Server 2012 R2, Windows 7 Ultimate and Windows Server 2008 R2 (Standard, Enterprise, Datacenter & Web Server)
- SolusVM TDN - OpenVZ, Xen & KVM ISO templates. License key required to authenticate
- VZtemplate.com - A free library of Linux-based templates for virtual private servers
- XenTemplate.com - A free library of Linux-based templates for virtual private servers
- NodeQuery - Provides a lightweight and easy to use linux server monitoring service
- Glances - A cross-platform curses-based system monitoring tool written in Python
- Dart - An open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps
- D Programming Language - A systems programming language with C-like syntax and static typing. It combines efficiency, control and modeling power with safety and programmer productivity
- toothpaste - A lightweight pastebin written in PHP using the Fat-Free Framework
- Sticky Notes - A powerful open-source pastebin application for effortless code sharing
- Hastebin - Written in node.js, which is easily installable in any network. It can be backed by either redis or filesystem
- Tiny Tiny RSS - Web-based news feed aggregator, designed to allow you to read news from any location
- ownCloud - ownCloud gives you freedom and control over your own data. A personal cloud which runs on your own server
- CSF - A Stateful Packet Inspection (SPI) firewall, Login/Intrusion Detection and Security application for Linux servers
- Lynis - Security auditing tool. Used by system administrators, security professionals, and auditors, to evaluate the security defenses of their Linux/Unix-based systems
- speedtest-cli - Command line interface for testing internet bandwidth using speedtest.net
- butterfly - A web terminal based on websocket and tornado
- SoftEther VPN - Free, Cross-platform Multi-protocol VPN Program from University of Tsukuba
- nxweb - Fast and Lightweight Web Server for Applications Written in C & Python
- Yaws - A HTTP high performance 1.1 webserver particularly well suited for dynamic-content web applications
- Centminmod - Easily auto install an optimized Nginx, MariaDB, PHP-FPM & CSF Firewall stack on a dedicated / VPS server(s)
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- Rainloop Webmail - A simple, modern & fast web-based email client
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