4.1. Operating System

4.1.1. TCP/IP Ports

The TCP/IP standard defines more than 65,000 ports for sending and receiving traffic. Of those, Bugzilla needs exactly one to operate (different configurations and options may require up to 3). You should audit your server and make sure that you aren't listening on any ports you don't need to be. It's also highly recommended that the server Bugzilla resides on, along with any other machines you administer, be placed behind some kind of firewall.

4.1.2. System User Accounts

Many daemons, such as Apache's httpd or MySQL's mysqld, run as either root or nobody. This is even worse on Windows machines where the majority of services run as SYSTEM. While running as root or SYSTEM introduces obvious security concerns, the problems introduced by running everything as nobody may not be so obvious. Basically, if you run every daemon as nobody and one of them gets compromised it can compromise every other daemon running as nobody on your machine. For this reason, it is recommended that you create a user account for each daemon.


You will need to set the webservergroup option in localconfig to the group your web server runs as. This will allow ./checksetup.pl to set file permissions on Unix systems so that nothing is world-writable.

4.1.3. The chroot Jail

If your system supports it, you may wish to consider running Bugzilla inside of a chroot jail. This option provides unprecedented security by restricting anything running inside the jail from accessing any information outside of it. If you wish to use this option, please consult the documentation that came with your system.