Currently I am using squid_ldap_auth in my squid.conf auth_param basic program /usr/local/squid/libexec/squid_ldap_auth -R -b "ou=Campus Users,dc=main,dc=biblical,dc=edu" -D "BIBLICAL\ldapbinduser" -w xxxx -f "sAMAccountName=%s" -P 192.168.1.201:389 auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours auth_param basic casesensitive off acl password proxy_auth REQUIRED http_access allow password When I use this: auth_param basic program /usr/local/squid/libexec/squid_ldap_auth -R -b "ou=Campus Users,dc=main,dc=biblical,dc=edu" -D "BIBLICAL\ldapbinduser" -w xxxx -f "sAMAccountName=%s" -P 192.168.1.201:389 in command prompt I enter in username and password I get "okay" which shows that I am getting authenticated through LDAP server but when I use IE to go to a site it won't authenticate me. I get this error message. ERROR Cache Access Denied The following error encountered: Cache Access Denied Sorry, you are not currently allowed to request: www.cnn.com from this cache until you have authenticated yourself. Also in my cache.log I get 1194383544.592 2 192.168.2.30 TCP_DENIED/407 1789 GET http://linux-0upp.site/cgi-bin/chpasswd.cgi administrator NONE/- text/html Its almost like it doesn't register my password.