Tag: filtering
Cisco ASA: DNS reply filtering
Today I was asked to block access to multiple websites and the only device capable of doing this was the firewall. This customer is using a Cisco ASA firewall, which supports basic URL filtering. This customers wanted to block HTTP and HTTPS websites. HTTPS websites use a SSL tunnel from the end device to the … Read More
VPN Filtering through Group Policy
When configuring a Remote Access VPN or a Site to Site VPN connection you have the ability to filter traffic entering and leaving the VPN connection. You have the ability to enable inbound IPsec sessions to bypass interface access lists. Group policy and per-user authorization access lists still apply to the traffic. The sysopt connection … Read More