The component services hosted by the departmental network are:
There are three MX hosts for inbound email, and two main internal mail servers. Sendmail is the MTA. POP and IMAP (and their secure versions) are used for mail access, using the UW-IMAP open source code. There is an MS Exchange server used by up to 200 users (generally those wanting shared access to mail spools, e.g. professors and secretaries).
MailScanner is used for anti-spam/anti-virus. This uses external services including various RBLs for part of its anti-spam checking.
Successful reverse DNS lookup is required for sendmail to accept internal SMTP connections for delivery.
Hard coded IP information:
• Blocked SMTP servers (spam sources)
Web hosting
Web content hosting is provided either with Apache 1.3.x (open source) or Microsoft IIS 5.0. Common components used to build systems with are MySQL, PHP 4 and Perl 5; these enable local tools such as Wikis to be run.
Hard coded IP information:
• .htaccess and remote access controls
• Apache “Listen” directive on given IP address
Directory services
A number of directory service tools are in use:
• NIS (6 servers, all Solaris)
• LDAP
• Active Directory
• RADIUS