* **Sysadmin**: KVM, Docker, Puppet, Google Cloud, systemd, Nagios, Munin
* **Server software**: Apache, Nginx, BIND, Postfix, Exim, MySQL, PostgreSQL, Mediawiki, Asterisk
* **Sysadmin**: KVM, Docker, Puppet, Google Cloud, systemd, Nagios, Munin
* **Server software**: Apache, Nginx, BIND, Postfix, Exim, MySQL, PostgreSQL, Mediawiki, Asterisk