Hi, Maybe you forced your domain by GPO to make your clients use NTLMv2 and forgot to enable NTLMv2 in smb.conf ? Best regards, Ilker G. -----Original Message----- From: VAIBHAV NALDURGKAR [mailto:vaibhav.naldurgkar@xxxxxxxxx] Sent: Thursday, May 25, 2006 9:21 AM To: squid-users@xxxxxxxxxxxxxxx Subject: Squid + NTLM auth + Windows 2003 AD Hi ALL, I am using squid Version 2.5.STABLE5 and samba 3.0.4 with NTLM authentication previously the NTLM authentication was working fine with my windows 2000 AD server but we have upgraded this windows AD to 2003 and also increased the security for this new AD like we have blocked the anonymous query to the new 2003 AD as a result of this my squid is not able to fetch the users and groups from the AD using the NTLM authentication. I tried upgrading my Linux OS from RHL 8 to AS 3 as well as squid version also but no luck but when I tried this with centos it is working. Can some one help me to set up squid + NTLM + Samba with windows 2003 AD on RedHat linux AS 3. Thanks in advance Vaibhav