I’m testing using proxy servers behind HA Proxy load balancers. The proxy servers on the back end are Symantec’s CSPs (basically Squid running on Windows). Before you ask, no, running Squid on Linux is not supported by Symantec and it does not pass the username through to the cloud service.
With NTLM authentication, most applications work properly. There are a few apps, such as Evernote and Cortana which seem to prompt for credentials endlessly. When going direct to the proxy servers, bypassing the LB, these prompts do not come up.
I’ve set keep alives and persistence in the HA Proxy config but not sure if i’m missing something else. Config below.
server srv1 srv1:3128 check maxconn 3000
server srv2 srv2:3128 check maxconn 3000
Thanks for any help.