nfsbu consists of two scripts written in Perl to help automate backing up data between two servers via an NFS mount. Its features include error reporting via e-mail, automatic NFS mount/unmount, error-checking to prevent NFS from causing a hang (as can be happen when the NFS server dies or doesn't respond), directories to back up can be listed in the configuration file, and either use the same or alternate destination directories on the backup server.
phpBBHC (PHP Big Brother Hosts Configurator) is a collection of PHP scripts and one C program to give a Web-based interface for adding, deleting, and modifying hosts which are monitored by Big Brother. Although Big Brother has since been replaced by Hobbit, phpBBHC can still configure Hobbit thanks to the backwards compatibility of Hobbit.
Zombie SMTP is a tool written to help interrupt spammers' activity. It pretends to be an SMTP server but all it really does is hold onto a connection for 20 mins if the source IP address of the connection is registered in one or more of the pre-defined RBLs. The purpose of this is to simply waste spammers' time if they try to connect to Zombie SMTP to relay their spam. Any connection from a machine not listed in the RBLs is automatically disconnected, this is to prevent authentic servers from tying up their resources who for some reason try to connect to this SMTP server.