Hi, Clem I am reading your post http://www.squid-cache.org/mail-archive/squid-users/201203/0454.html In the post, someone stated that NTLM auth does not support: It's facing the double hop issue, ntlm credentials can be sent only on one hop, and is lost with 2 hops like : client -> squid (hop1) IIS6 rpx proxy (hop2) -> exchange 2007 That is not true. Here we have the setup: Client -> Apache (hop1) -> IIS 7 -> exchange 2007 It works the setup and just I could not have the latest Apache. Otherwise I will continue to use Apache reverse proxy. The latest Apache does not support MS RPC over http which is posted on the internet. https://issues.apache.org/bugzilla/show_bug.cgi?id=40029 I am not sure why squid does not support NTLM auth to the backend exchange server. Ruiyuan This message (including any attachments) is intended solely for the specific individual(s) or entity(ies) named above, and may contain legally privileged and confidential information. If you are not the intended recipient, please notify the sender immediately by replying to this message and then delete it. Any disclosure, copying, or distribution of this message, or the taking of any action based on it, by other than the intended recipient, is strictly prohibited.
