- lnav
- cockpit https://www.itzgeek.com/how-tos/linux/ubuntu-how-tos/install-cockpit-on-ubuntu-16-04.html , https://www.2daygeek.com/cockpit-monitor-administer-multiple-remote-linux-servers-via-web-browser/
- zabbix agent http://yallalabs.com/linux/how-to-install-zabbix-agent-on-ubuntu-16-04-lts/
- netdata https://github.com/netdata/netdata
- change ssh keys between other servers
- eXtplorer http://extplorer.net/projects/extplorer/wiki/Getting_Started (immediately change PW + change working directory)
- ncdu
- https://nodequery.com/ - monitoring