Linux and C

Back in 2009 I had written a C program for Linux that was a greylist daemon to help filter out spam.  It worked well with the exim mail server and can work with other servers as well.  I opted to write it in C because at the time I wanted the best performance available for lower-grade machines used as mail servers.

I recently placed the files in github: at

The project demonstrated using C for Linux socket communications, creating a daemon/service, as well as a client program to test the daemon.  It also includes a man page file and a make file.

While it may no longer be a viable service, it provides a simple demonstration for getting started with a variety of Linux programming topics.