On Tue, 21 Jul 2009 07:16:36 -0700 (PDT), danifty <[email protected]> wrote: > Hi all, > > I'm fairly new to squid, and i'm trying to configure it for filtering web > access from multiple vlans, allowing such of them going to some > destinations > (and nowhere else), and others... going to others destinations, etc.. All > other vlans are granted to go everywhere (I hope this is clever... I'm > french... sorry! :-)) > > Here is how i think it can be done... but i doubt. Could you please tell me > if this is good, and if not, could you explain me what to do to have a > correct filtering configuration. > > Thanks a lot! > > ################################################ > ### SOURCES ### > # [VLAN 1] > acl src_vlan_1 src 192.168.1.0/24 > > # [VLAN 2] > acl src_vlan_2 src 192.168.2.0/24 > > # [Tous VLANs] > acl all src all
Your idea here is slightly broken. "all" means all Internet. When defined like this, it means any source on Internet. Best use: # [Tous VLANs] acl Tous_VLANs src 192.168.0.0/16 (NP: that covers all vlans inside 192.168.*.0/24. Add other ranges as needed to the list) > > ################################################ > > ### DESTINATIONS ### > # [VLAN 1] > acl dst_VLAN1_SITES dstdomain .google.fr .yahoo.com > > # [VLAN 2] > acl dst_VLAN2_SITES dstdomain .voila.fr .altavista.com > > # [All destinations] > acl ALL_INTERNET dst 0.0.0.0/32 Broken. This only permits if the _single_ ip == "0.0.0.0" is requested. And requires a destination Ip lookup before anything can be done. Best use the "all" ACL defined above instead. # [All Internet] acl all src all > > ################################################ > > ### AUTORISATIONS ### > > # VLAN 1 > http_access allow dst_VLAN1_SITES src_vlan_1 > http_access deny src_vlan_1 ALL_INTERNET > http_access allow dst_VLAN1_SITES src_vlan_1 http_access deny src_vlan_1 > # VLAN 2 > http_access allow dst_VLAN2_SITE_CLIENT > src_vlan_2 > http_access deny src_vlan_2 ALL_INTERNET http_access allow dst_VLAN2_SITE_CLIENT src_vlan_2 http_access deny src_vlan_2 > > http_access allow all ALL_INTERNET Means any source on Internet can go to any destination on Internet through your proxy. Definitely NOT a good idea. Please use: http_access allow Tous_VLANs http-access deny all Amos
