mod_perl is a powerful and widely used plugin to the Apache web server which serves dynamic Perl-CGI scripts much faster than normal CGI by caching code and providing a persistent Perl interpreter. Regular Perl-CGI scripts can be run in mod_perl, but they must conform to stricter coding guidelines, while keeping-in-mind other specific considerations. This course provides a basic understanding of mod_perl, guidelines to code for it, as well as how to port old CGI code, avoid pitfalls, optimize performance, and to configure Apache.