Handy Links
BackupPC
ClamAV
Corosync & Pacemaker
Courier MTA
Debian
Diamond Collector
Exim Mailer
Fail2Ban
Froxlor
(The best and most configurable web panel available)
Galera Cluster
GlusterFS
Grafana
Icinga
IP Set
Jira
Lynis Auditing
NginX
OSSEC HIDS
phpList Newsletter Manager
ProxMox
Puppet
Pydio
(formerly AjaXplorer)
Redis
(ESPECIALLY for EZ Publish!!!!!!)
Siemonster
strongSwan IPsec VPN Server
SubEtha Mailing List Manager
Suricata NIDS
The Foreman