Cgictrl is a CGI framework for Ruby. It allows you to use the structure of a mainframe program (like on IBM's CICS) with CGI. Programs are selected by transaction codes, and the CGI program indicates the next transaction code to continue the conversation process. Basically, one CGI program sends only one kind of view, and processes input data from only this view. Each program can store internal data in a SPA (Scratch Pad Area) on the server, which is allocated uniquely per session.
bgpfeeder is a program to feed a BGPv4 speaker with an infrequently changing list of static internal routes. It is used at Bytemark to rearrange routing information from the "network organizer" database, to avoid staff having to log in to core routers to effect common routing changes. It is also used to communicate with transit providers to communicate "black hole" information about traffic that should not be passed on to the routers.