I have an old FC2 box running Squid version 2.5. It has been running since 2003 so I am in the process of replacing it. I have a new machine with FC11, iptables, and Squid 3.0 installed.

On the old machine I use iptables to intercept Port 80 traffic and send it to Squid. By default I block all internet access and allow only sites that are in an Allowed_Sites.txt file. Within Squid I also have statements to allow certain users to bypass Squid based on their IP address.

I have set up the same thing on the new box. I have iptables intercepting the Port 80 traffic and sending it to Squid. That is working because if I remove the redirect statement from iptables all internet access is blocked.

The problem I am having is that Squid is not blocking any websites. It acts like the ACL is set to http_access allow all. I have worked on this for several hours and am stumped.

These are my Squid rules:
acl allowed_sites url_regex "/etc/squid/Allowed_Sites.txt"
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl SSL_ports port 443
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access allow Bypass_Users
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
acl our_networks src 192.168.1.0/24
http_access allow allowed_sites
http_access allow our_networks
http_access deny all
icp_access deny all
htcp_access deny all
http_port 192.168.1.254:3128 transparent
hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
visible_hostname FC11.proxybox
icp_port 3130
coredump_dir /var/spool/squid

Any suggestions would be appreciated. I'm seriously thinking about trying to find Squid version 2.5 to replace the 3.0. since 2.5 worked find for the last 7 years.

Hi,
try this (I haven't copied all your config, just keep in mind that you have to specify both ACLs in the rule)
Hope, it'll help you. I love Squid
Have fun

Lexus45,

I already had those in my http_access section but it didn't work. Apparently Squid 3.0 operates differently because I fixed it this way.

In the http_access section I have this:
http_access allow our_networks
http_access deny all

In the http_reply_access section I have this:
http_reply_access allow allowed_sites
http_reply_access allow Bypass_Users
http_reply_access deny all

That makes sense which is probably why it was changed in Squid 3.0. If you think about it, http_access controls who can access the proxy box. And http_reply_access controls which sites can reply to the proxy box.

In version 2.5 the rules were apparently a little less restrictive.