Mod_auth_kerb is an Apache module designed to provide Kerberos authentication to the Apache web server. The module also supports the Negotiate authentication method, which performs full Kerberos authentication based on ticket exchanges, and does not require users to insert their passwords to the browser. This requires heimdal. You will need to add the following line to /etc/httpd/httpd.conf: Include /etc/httpd/extra/mod_auth_kerb.conf Mod_auth_kerb can be further configured through the Apache configuration file; see the README in the package's documentation directory for details.