Here is my squid.conf. I went in and checked again, no samba or Kerberos installed. Venu ############## Start of squid.conf shutdown_lifetime 5 seconds icp_port 0 http_port 192.168.25.56:80 acl QUERY urlpath_regex cgi-bin \? no_cache deny QUERY cache_effective_user squid cache_effective_group squid pid_filename /var/run/squid.pid cache_mem 2 MB cache_dir aufs /var/log/cache 50 16 256 error_directory /usr/lib/squid/errors/English cache_access_log /var/log/squid/access.log cache_log /var/log/squid/cache.log cache_store_log none useragent_log /var/log/squid/useragent.log strip_query_terms off log_mime_hdrs off forwarded_for off auth_param ntlm program /usr/lib/squid/ntlm_auth CAMELOT/AD01 CAMELOT/AD01 auth_param ntlm children 5 auth_param ntlm max_challenge_reuses 0 auth_param ntlm max_challenge_lifetime 2 minutes acl for_inetusers proxy_auth REQUIRED acl within_timeframe time MTWHFAS 00:00-24:00 acl all src 0.0.0.0/0.0.0.0 acl localhost src 127.0.0.1/255.255.255.255 acl SSL_ports port 443 563 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 563 # https, snews acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl Safe_ports port 800 # Squids port (for icons) acl IPCop_http port 81 acl IPCop_https port 445 acl IPCop_ips dst 192.168.25.56 acl IPCop_networks src "/var/ipcop/proxy/advanced/acls/src_subnets.acl" acl CONNECT method CONNECT #Access to squid: #local machine, no restriction http_access allow localhost #GUI admin if local machine connects http_access allow IPCop_ips IPCop_networks IPCop_http http_access allow CONNECT IPCop_ips IPCop_networks IPCop_https #Deny not web services http_access deny !Safe_ports http_access deny CONNECT !SSL_ports #Set custom configured ACLs http_access allow IPCop_networks for_inetusers within_timeframe http_access deny all maximum_object_size 4096 KB minimum_object_size 0 KB request_body_max_size 0 KB reply_body_max_size 0 allow all visible_hostname ipcoptest.castlepointmortgage.com ############## End of squid.conf -----Original Message----- From: Nemallikanti, Venu Sent: Tuesday, April 05, 2005 2:32 PM To: Greg Scott; squid-users@xxxxxxxxxxxxxxx Subject: RE: [squid-users] RE: Integrated authentication with IE on Windows 2003 Hi, I am able to authenticate against Windows 2003 AD if I am connecting using IE on Windows 2000/XP. I get authentication problem only when I am using IE on Windows 2003. Squid proxy I am talking about is actually part of IPCop (LFS based Firewall/Proxy solution) installation. I do not see Samba and Kerberos installed. Venu -----Original Message----- From: Greg Scott [mailto:GregScott@xxxxxxxxxxxxxxxx] Sent: Tuesday, April 05, 2005 1:46 PM To: Nemallikanti, Venu; squid-users@xxxxxxxxxxxxxxx Subject: RE: [squid-users] RE: Integrated authentication with IE on Windows 2003 Does this sound familiar to a skinny bald guy from Minnesota or what? I just worked my way though this over the past several days. What version of Kerberos and Samba are you using? You need krb1.3 or newer to work with Win 2003 AD. - Greg Scott -----Original Message----- From: Nemallikanti, Venu [mailto:vnemallikanti@xxxxxxxxxxxxxx] Sent: Tuesday, April 05, 2005 10:45 AM To: squid-users@xxxxxxxxxxxxxxx Subject: [squid-users] RE: Integrated authentication with IE on Windows 2003 Hi, I am running Squid proxy server with Windows AD authentication using NTLM. When I setup Squid for integrated authentication mode I am not able to go out on the internet using IE on Windows 2003, all though I am able to go out using IE on Windows 2000/XP. The error I am getting is authentication failure. If I turn integrated authentication off, my browser on Windows 2003 prompts me for a password and I am able to go online. Can someone please help me fix this problem? Thank You, Venu