I had not previously played aroung much with MySQL replication, but got the chance to do so recently. I'm doing some testing with a new mail filter setup composed of amavisd-new, SpamAssassin, and some other SA modules running through Postfix on Debian Etch. The setup uses Maia Mailguard as a web front-end and management system, including per-user settings and quarantines. We're using MySQL for the database backend for Maia for storing quarantines, per-user settings and the like, but wanted to have a dual-MX setup with a secondary MX sitting in a remote site…

Lately, our company has started developing user web portals for our clients. The main goal is to provide a central reference point for common links (webmail, helpdesk, remote assistance links ... ), howto documents, and other files and resources. A secondary goal was to also allow user administrators to perform basic user management through a web interface. This would include things like disabling/creating/unlocking user accounts, resetting passwords, and modifying group memberships for access reasons. Myself and the other admin tasked with setting up this portal are most familiar with PHP, and so we went of looking for the best means of interfacing with Active Directory through PHP…

We recently received reports of message delivery delays in our Exchange organization. We run Exchange 2007, so I checked out the Hub Transport Servers and discovered that messages were piling up in the Submission queues on both of the main hub transports. Restarting the Microsoft Exchange Transport service didn't get things going again, so I turned to the Application Log to try to figure out what was going on…

On a recent network audit for a prospective new client, I came across an issue in the Exchange System Manager for their Exchange Server 2003 box. When you tried to browse into any public folder management, ESM presented the following error: The SSL certificate server name is incorrect…