rpaf changes the remote address of the client on incoming proxy requests. It is used in backend servers that needs to know the IP of the client, and works in conjunction with mod_proxy_add_forward (which sets the X-Forwarded-For header). When an X-Host header exists rpaf will take the hostname found here, put it into Apache, and update the virtualhost settings so that you can serve virtualhosts on the backend. It includes modules for both Apache 1.3 and 2.0.
mod_auth_cache transparently caches an authentication originally done by a different module. The aim of this module is to speed up complex authentication mechanisms, to reduce database traffic if authenticating thru a backend database, and to implement some sort of authentication reliability if the database server fails. As the caching is completely transparent (done by the webserver), you don't have to change or implement new functions in your existing applications. The module only caches a users authentication and not a users access permissions, which can still be controlled by a different module.
Worm Report is a very simple Perl script to filter out the known worm (Code Red, Nimda) hits from the access log, and put them into their own files named for the IP/Host that has been "wormed". A basic report containing the count, hostname, ip, and a guess at the parent domain is then printed to STDOUT to facilitate contacting these individuals. Adding a new worm requires adding a new worm hit string to the DATA section of the script, nothing so fancy (or exhaustive) as an Apache module.
The Load Balancer Project is a tool that allows you to balance requests using clusters of servers. The goal is to achieve high availability load balancing with a simple configuration for the load balancer and the network topology. It leaves the servers untouched so the configuration only resides on the load balancer, and it allows you to manage any type of service via a plugin model design and a transparent proxy feature.
@1 Auto Delete deletes all files (in a specific directory) with dates older than the specified number of days. It can be useful if you have pages generated through user's input. It can be run manually from a browser, through telnet, or automatically using crontab. There are only two variables to edit - the directory, and the file age.