Tag: request
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
Configuration Example, Security
Cygwin with OpenSSL for CSR generation
A lot of services, which are published to the Internet, are secured with SSL certificates. A lot of times we use SSL certificates to secure communications when implementing ISA reverse proxy servers, Citrix Secure Gateway servers and/or Cisco WebVPN portals. When you want to secure a connection with a SSL certificate you have to create … Read More