openlsm - Web based open source, Linux Server Management(LSM) -LAMP ,FTP,Jabber, Samba,NFS,LDAP and MySQL based virtual hosting, Squid,Backup,Quota,Mail ,spam-assassin, mailable,Asterisk, web hosting, Load balancing, nagios and ganglia monitoring.
Shinken is a Linux/Windows monitoring tool in Python compatible with Nagios. The main goal of the program is to allows users to scale the load : it "cuts" the user's configuration into independent part and send it to workers.