Since TMG is End of Life, can you please recommend what proxy server software we can use to set up a forward proxy and also use some firewall capabilities. Also we need proxy to support client certificate authentication for clients connecting to the proxy.

Hi,

I did some tests with different Firewall / Proxy vendors and found the following products appropriate:
Webproxy/Reverse Proxy:
Blucoat

Firewall
Checkpoint
Sophos UTM
Cisco ASA

Thanks Marc! I looked at the BlueCoat and Sophus UTM and none of these proxies support proxy authentication via client certificate which is our requirement. I know even TMG doesn't support Client certificate authentication for forward proxy scenario. Do you know of any other proxy solutions that support client certificate auth in forward proxy scenario?

Also my requirement is to be able to deploy using Microsoft technologies and also should be software proxy.