Try something like this: acl myclients src 10.1.3.0/255.255.255.0 acl myclients src 10.19.220.0/255.255.255.0 http_access deny !myclients "myclients" are the allowed clients which may use the proxy. Use these acl's in front of all other acl's. Mit freundlichem Gruß/Yours sincerely Werner Rost GMT-FIR - Netzwerk ZF Boge Elastmetall GmbH Friesdorfer Str. 175, 53175 Bonn, Deutschland/Germany Telefon/Phone +49 228 3825 - 420 Telefax/Fax +49 228 3825 - 398 werner.rost@xxxxxx >-----Ursprüngliche Nachricht----- >Von: deny1 [mailto:deny1@xxxxxxx] >Gesendet: Mittwoch, 16. März 2005 10:56 >An: squid-users@xxxxxxxxxxxxxxx >Betreff: [squid-users] securise squid > > >good morning > >a nessus scan give this about my squid : >Warning found on port squid-http (3128/tcp) > > > The misconfigured proxy accepts requests coming > from anywhere. This allows attackers to gain some anonymity when >browsing > some sensitive sites using your proxy, making the remote >sites think >that > the requests come from your network. > > Solution: Reconfigure the remote proxy so that it only >accepts requests > coming > from inside your network. > > >i see squid.conf and find this : > >#Recommended minimum configuration: >acl all src 0.0.0.0/0.0.0.0 >acl manager proto cache_object >acl localdomain src 192.168.0.0/255.255.255.0 >acl to_localhost dst 127.0.0.0/8 >acl SSL_ports port 443 563 >acl Safe_ports port 80 >acl Safe_ports port 21 >acl Safe_ports port 443 563 >acl Safe_ports port 70 >acl Safe_ports port 210 >acl Safe_ports port 1025-65535 >acl Safe_ports port 280 >acl Safe_ports port 488 >acl Safe_ports port 591 >acl Safe_ports port 777 >acl CONNECT method CONNECT > >auth_param basic program /usr/lib/squid/ncsa_auth >/usr/local/squid/users auth_param basic children 5 auth_param >basic realm Squid proxy-caching web server auth_param basic >credentialsttl 24 hour > >acl eth0 src 192.168.0.0/255.255.255.0 >acl users proxy_auth REQUIRED > >http_access allow eth0 users > ># Only allow cachemgr access from localhost >http_access allow manager localdomain >http_access allow localdomain ># Deny requests to unknown ports >http_access deny manager ># Deny CONNECT to other than SSL ports >http_access deny !Safe_ports >http_access deny CONNECT !SSL_ports > > > >http_access deny to_localhost > > > >another lines to add or uncomment to avoid this nessus message ? thanks >