Microsoft isa (proxy) server
To configure Microsoft's ISA (proxy) server, follow these steps.
* Create a custom HTTP protocol with no filters. * Create RTMP protocol on TCP 1935 with no filters. * Create rule allowing Custom_HTTP and RTMP from Internal to the domain's IP address. * Make sure this rule is before your regular HTTP outbound rule. * Create rule denying regular HTTP from the Internal IP address. * Make sure this rule is right below the allow Custom_HTTP rule and above the regular HTTP outbound rule. * Do not use Web proxy from the client or the ISA firewall client.