This list reflects the broad range of technologies I've encountered and worked with over the years. It spans various domains such as administration, automation, web development, and more.

Administration#

  • Synapse-admin - Web interface for managing Matrix server
  • pgAdmin - Web-based administration and development platform for PostgreSQL
  • phpMyAdmin - Web-based administration tool for MySQL and MariaDB
  • PostfixAdmin - Web-based management tool for Postfix

Automation#

  • Ansible + AWX/Tower - Automating tasks and processes
  • Bash - Default shell for most Unix Systems
  • Python - Multi-purpose High-level interpreted programming language
  • Terraform - Defining and managing infrastructure as code
  • Vagrant - Automatisation for Virtual Environment Providers like libvirt, VirtualBox, VMware, Kubernetes, LXC and Docker

Backups#

  • Manual (Rsync, tar, BTRFS) - Tools and Filesystems for backing up data.
  • VEEAM - Backup and recovery solution for virtual environments. (Proprietary)
  • ReaR - Disaster recovery tool for Linux systems.
  • Proxmox Backups - Backup and recovery solution for Proxmox

Communication#

  • Mail (Postfix + Dovecot + VirtualMailBox) - Sending and receiving email
  • Matrix - Decentralized, real-time communication
  • IRC - Chat system for instant messaging
  • Jitsi Meet - Video conferencing solution
  • Nextcloud Talk - Video conferencing solution
  • Element Call - Video conferencing based on Matrix and WebRTC with full end-to-end encryption.

Database#

  • MariaDB/MySQL - Relational database management system
  • PostgreSQL - Relational database management system
  • SQLite - Lightweight, file-based database system.
  • Oracle - Commercial relational database management system (Proprietary)

Documentation / Ticketing#

  • Wiki.js - Wiki Engine running on Node.js
  • Confluence - Web-based corporate wiki developed by Atlassian (Proprietary)
  • Jira - Project and issue tracking software developed by Atlassian (Proprietary)

High Availability#

High availability technologies for services and databases

  • KeepaliveD
  • Galera (MariaDB)
  • Patroni (PostgreSQL)

Lifecycle management#

  • Foreman - Upstream fork of RHEL Satellite
  • Red Hat Satellite - (Proprietary)
  • Spacewalk - Patch management alternative to Foreman

Monitoring#

  • Prometheus + Grafana - Monitoring and graphing system and application metrics
  • CheckMK - Monitoring solution for networks, servers, and applications

Multimedia / Office#

  • Nextcloud - Cloud Suite, providing similar features to Google Suite
  • OnlyOffice - Office suite with high compatibility to MS Office and Online collaboration features
  • Jellyfin - Media server for Videos, Music and IPTV

Network#

  • FirewallD - Firewall management tool for Linux
  • OpenWRT - Linux-based operating system for routers and other networking devices.
  • OPNsense + pfSense - Firewall and router solutions
  • PowerDNS - Authoritative DNS server
  • NetBox - IP address and network topology management

Storage#

  • NFS - Network file system
  • SMB - Network file system
  • GlusterFS - Network file system
  • BTRFS - Managing disk storage and creating logical volumes
  • LVM - Managing disk storage and creating logical volumes
  • Nextcloud - Cloud storage and file synchronization solution
  • Seafile - Cloud storage and file synchronization solution

Virtualization#

  • KVM + libvirtd - Creating and managing virtual machines on Linux.
  • LXC - Containerization technology for operating system level virtualization
  • Docker - Containerization technology for application level virtualization
  • Kubernetes - Container orchestration and management platform for deploying, scaling, and operating application containers.
  • Proxmox - Virtualization management platform that uses KVM and libvirtd
  • VMware vCenter + ESXi - Creating and managing virtual machines on multiple hosts. (Proprietary)

VPN (Virtual private network)#

  • OpenVPN - Virtual private network software that uses SSL/TLS to establish secure and encrypted connections
  • WireGuard - Virtual private network software that aims to be simpler and faster than other VPN technologies
  • ZeroTier - ZeroTier is a secure network overlay that provides global, decentralized, and transparent network virtualization.
  • Tailscale - Tailscale is a secure network overlay based on the WireGuard VPN protocol, allowing devices to connect as if they are on the same private network.

Web#

  • Apache - Hosting websites
  • Nginx - Hosting websites
  • PHP-FPM - For PHP based web applications.
  • HAProxy - Load balancer for distributing incoming traffic among multiple servers.
  • SearX - Self-hosted search-engine