Here is my issue... Our IT team in Brazil is running Squid 2.5 STABLE11 and chain to my regional NetCache proxies here in the US. The regional NeCache proxies require NTLM authentication for all users and also are configured to fallback to LDAP for those users that are not members of the domain. There are no authentication parameters configured on the Brazil Squid proxy. Clients that connect directly to the NetCache and are members of the domain authenticate transparently, those that are not members of the domain are prompted for their LDAP credentials. Brazil clients are not members of the domain. When they access HTTP sites via their squid that is chained through the NetCache they recieve a prompt from the NetCache requesting their LDAP credentials. This is exactly how they should work. The problem is that when they try to access HTTPS sites they don't get an LDAP prompt from the NetCache. They receive an authentication prompt from the Squid requesting their NTLM credentials. Which of course is an issue because they are not members of nor do they have accounts in the domain. The prompt they recieve is of the format below. server: proxy.domain.com scheme: ntlm username: password: domain: Again, the squid.conf file doesn't have any auth_param entries configured. The intial NTLM authentication should simply fail during the initial request and then the NetCache should prompt for LDAP credentials just as it works for HTTP requests. It should also be stated that when we tested squid-to-netcache proxy chaining we were running 2.4 at the time and we didn't see any of these issues. Below is the squid.conf of the brazil proxy. ANY HELP WILL BE MUCH APPRECIATED as I have exhausted all ideas on my end. Thanks in advanced! ###############################SQUID.CONF#################################### http_port 8080 cache_peer proxy.domain.com parent 8080 0 login=PASS no-query default #cache_peer xxx.xxx.xxx.xxx parent 8080 0 no-query default hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? no_cache deny QUERY # cache_mem 16 MB cache_swap_low 80 cache_swap_high 90 maximum_object_size 256 KB maximum_object_size_in_memory 16 KB cache_replacement_policy lru memory_replacement_policy lru cache_dir aufs /var/spool/squid 200 16 256 cache_access_log /var/log/squid/access.log cache_store_log /var/log/squid/store.log pid_filename /var/run/squid.pid ftp_user Squid@xxxxxxxxxx debug_options ALL,1 ## redirect_program /usr/local/bin/SquidClamAV_Redirector.py -c /etc/squid/SquidClamAV_Redirector.conf # redirect_program /usr/local/squidclamav/bin/squidclamav redirect_children 15 ## error_directory /etc/squid/errors refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 acl dhl_network src "/etc/squid/dhl_network" acl dhl_hosts src "/etc/squid/hosts" acl black_domain dstdomain "/var/lib/squidguard/blackdomains" acl apro_sites url_regex "/etc/squid/apro_sites" acl apro_domain dstdomain "/etc/squid/apro_domain" acl pro_sites url_regex "/etc/squid/pro_sites" acl pro_domains dstdomain "/etc/squid/pro_domains" acl mpeg url_regex .mpeg$ acl exe url_regex .exe$ acl avi url_regex .avi$ acl mov url_regex .mov$ acl screen url_regex .scr$ acl mp3 url_regex .mp3$ acl msn url_regex .*msn.com.* acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 563 11005 4443 8443 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 CONNECT method CONNECT redirector_access deny localhost http_reply_access allow all http_access allow manager localhost http_access allow apro_domain http_access allow apro_sites http_access allow hosts http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access deny black_domain http_access deny pro_sites http_access deny pro_domains http_access deny msn http_access deny mpeg http_access deny exe http_access deny avi http_access deny mov http_access deny mp3 http_access deny screen http_access allow dhl_network http_access deny all icp_access allow all cache_effective_user squid visible_hostname on httpd_accel_with_proxy on never_direct allow all logfile_rotate 5 snmp_port 0 snmp_access deny all coredump_dir /var/spool/squid
