Hi, I'm obviously doing something wrong with my ACLs, and would appreciate any advice. We require authentication via radius, and we only allow each user to be logged on from workstation at a time. Anyone logged on to a server can access the Internet from multiple machines (i.e., for maintenance periods where one admin might be running updates on several boxes simultaneously). If a user logs in from too many machines, or if he enters a wrong password, he gets the error message in ERR_NO_SHARING. I would expect a user who signs on too often to get ERR_NO_SHARING and a user who fails to authenticate to get the default ERR_CACHE_ACCESS_DENIED. Instead, all users get ERR_NO_SHARING. I would like to give the users a useful error message, but obviously I am missing something. The ACL portion of my squid.conf follows. Thanks for any suggestions, ==ml -- error_directory /etc/squid/errors auth_param basic program /usr/local/squid/libexec/squid_radius_auth_new -f /etc/squid/squid_radius_auth.conf auth_param basic children 5 auth_param basic realm 'Web' #confirm our login is still good via Radius at this interval; #this is not the time between password query popups at user's browser! authenticate_ttl 15 minutes acl all src 0.0.0.0/0.0.0.0 # all sources acl manager proto cache_object # internal cache manager acl localhost src 127.0.0.1/255.255.255.255 # This computer's loopback source acl to_localhost dst 127.0.0.0/8 # This computer's loopback destinations acl PURGE method PURGE acl Safe_ports port 80 # http acl Safe_ports port 20 # ftp acl Safe_ports port 21 # ftp-data 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 radius_auth proxy_auth REQUIRED acl no_auth_src src "/etc/squid/noauth_src.list" acl no_auth_dst dst "/etc/squid/noauth_dst.list" acl no_auth_hostdst dstdomain "/etc/squid/noauth_hostdst" #Don't share password authenticate_ip_ttl 60 seconds acl noPwSharing max_user_ip 1 deny_info ERR_NO_SHARING noPwSharing #allow server networks more leeway for administration acl serverPwSharing max_user_ip 5 deny_info ERR_NO_SHARING serverPwSharing #Our internal networks; one for source, one for dest acl our_networks src 10.0.0.0/8 127.0.0.0/8 acl our_servers dst 10.0.0.0/8 127.0.0.0/8 acl server_network src 10.184.1.0/24 acl our_domains dstdomain internal.com acl CONNECT method CONNECT # Http Connect method #Only the local machine can see cache manager http_access allow manager localhost http_access deny manager #management acl http_access allow PURGE localhost http_access deny PURGE #block connections to unsafe ports http_access deny !Safe_ports #Allow everyone through to some sites without auth http_access allow no_auth_dst http_access allow no_auth_src http_access allow no_auth_hostdst #Everyone can access internal servers always_direct allow our_domains #servers can have one user connect multiple times http_access allow server_network radius_auth #clients may only log in from one IP at a time. http_access deny noPwSharing #Clients must auth to radius to leave our network http_access allow our_networks radius_auth #everyone else is denied access http_access deny all #everyone can reply http_reply_access allow all #nobody may use this as a peer proxy icp_access deny all -- Michael W. Lucas mwlucas@xxxxxxxxxxxxxxxxxxxx, mwlucas@xxxxxxxxxxx http://www.BlackHelicopters.org/~mwlucas/ Coming Soon: "Absolute FreeBSD" -- http://www.AbsoluteFreeBSD.com On 5/4/2007, the TSA kept 3 pairs of my soiled undies "for security reasons."
