hello all, my clients should access an IIS website requesting ntlm authentication 'WWW-Authentication'. they all use ie6 and proxied through a chain of two proxies. the first one hosted in internal network making the whole job of logging, validating ntlm authentication coming from all the ie's with our internal active directories, allow/deny websites mime-types and all kind of stuffs. the other one hosted in dmz as making simply the job of gateway to the internet. Both of them are running 2.7.4 simple question .. Is that possible or not to make this surfing working .. if yes what do I have to configure ?? Do I have to activate things like squid ntlm_auth binary, connection-auth=on, login=PASS ?? many thks for your help. Vincent ----------------------------------------------------------------- ATTENTION: The information in this electronic mail message is private and confidential, and only intended for the addressee. Should you receive this message by mistake, you are hereby notified that any disclosure, reproduction, distribution or use of this message is strictly prohibited. Please inform the sender by reply transmission and delete the message without copying or opening it. Messages and attachments are scanned for all viruses known. If this message contains password-protected attachments, the files have NOT been scanned for viruses by the ING mail domain. Always scan attachments before opening them. -----------------------------------------------------------------