My Network Security Journal

I needed to add the failover key <KEY> command in a Cisco ASA firewall pair. The failover pair is working but the previous admin forg...

Here's a link about AAA and local username database in a Cisco ASA Multiple mode/Context-based Firewall. You should use the login comm...

Here's a link about Cisco ASA Objects. I needed to "harden" our SIP connection to an external SIP gateway in the Internet. So...

There's a quick and easy way to block an external (public) IP address without creating an ACL is to use the Cisco ASA Firewall shun fea...

Here's a nice Cisco link for configuring NetFlow Secure Event Logging (NSEL) in a Cisco ASA Firewall. The Cisco ASA supports NetFlow ver...