The Firewall, Mail Server, File Server, Web Server and Telephone Server all run "DEBIAN LINUX".
The servers all provide high availability by using a secondary server tied to the primary server through "HEARTBEAT" and "DRBD". In case of failure on the primary server the secondary server will automatically fail over.
Administration is done via "WEBMIN"
The mail server utilizes "POSTFIX", "COURIER", "SQWEBMAIL", "LDAP", "JAMM", "AMAVIS", "SPAMASSASSIN", "CLAMAV", "HYLAFAX" and "FETCHMAIL"
The file server utilizes "SAMBA".
The web server uses "APACHE"
The telephone server provides our voice over IP (VOIP) via "ASTERISK". The configuration is accomplished by the "freePBX" GUI.
DNS services are provided by "BIND".
Database services are provided by "POSTSQL" or "MYSQL" or "LDAP"
Our ERP software is M1 and runs on a Microsoft Server.