- Administration von Linux-Servern (Debian GNU/Linux, Ubuntu, openSUSE, RedHat, weitere)
- Administration von Arbeitsplätzen unter Windows, Linux, macOS (Level 1-3)
Adobe Illustrator, Adobe InDesign, Adobe Photoshop, Ansible, Apache Directory Studio, Apache Webserver, atftpd, awstats, Bind, checkmk, CommunigatePro, DokuWiki, Dovecot, Endian, Firefox, Forcepoint, FortiNet, Gitea, GitLab, HIS-LSF, IIS, ILIAS, IntelliJ, IPFire, IPSec, ISC DHCPD, IServ Schulserver, keepalived, LibreOffice, MediaWiki, MS Office, Monit, Moodle, Nagios, Netdisco, Nextcloud, NTP, OpenLDAP, OpenVPN, OPNSense, OPSI, Palo Alto, pfSense, PHPStorm, Proxmox VE, Postfix, RADIUS, RSync, Roundcube, Samba, syslog, systemd, TYPO3, Untis, UniWAHL, Wireguard, Wordpress