libapache2-mod-auth-tkt - 2.3.99~b1-1+b1 main

mod_auth_tkt is a lightweight single-sign-on authentication module
for Apache. It uses secure cookie-based tickets to implement a single-signon
framework that works across multiple Apache instances and servers.
.
mod_auth_tkt itself is completely repository-agnostic, as the actual
authentication is done by a user-supplied CGI or script in your language of
choice (examples are provided in Perl, with contrib libraries for use with
Python and PHP). This allows authentication against virtually any kind of
user repository you can imagine (password files, ldap directories, databases,
etc.)