How to Block Access to Websites with a Cisco ASA Firewall (with FQDN)
In this article I will show you how to deny access to specific websites (domain names) with a normal Cisco ASA firewall. This works on either the older 5500 models or the new 5500-X series
From ASA version 8.4(2) and later, Access Control Lists (ACL) can contain an ... www.facebook.com by denying access to FQDN object “www.facebook.com” ...