Firewall

Help someone is attacking my network!

Diagnosing and securing your network against brute-force and dictionary attacks I often get calls from customers saying “help someone is attacking my network!”, usually they have noticed excessive failed login attempts in their security logs or user accounts locking out frequently. Some people may find it surprising how common a problem this actually is and may not […]

Allow PPTP VPN through Cisco PIX

Allow PPTP VPN through Cisco PIX I came across a situation recently where a customers VPNs wouldn’t connect. This was a straight forward Microsoft PPTP VPN setup but there was no sign of any sessions hitting the RRAS server. The issue was caused by an incorrectly configured Cisco PIX. Here is a short guide to allow PPTP VPN through Cisco PIX: 1. Firstly ensure your access […]