Squid Proxy Not Allowing Web Access

Question

I have just installed Squid on my Ubuntu 11.04 system by entering

sudo apt-get install squid

I then edited /etc/squid/squid.conf and added

acl squid_network src 10.0.2.0/24
http_access allow squid_network
http_access allow all

after

acl purge method PURGE
acl CONNECT method CONNECT

I then went into Firefox, chose Edit:Preferences:Network:Settings

and made the following changes.

Manual proxy configuration
HTTP Proxy 10.0.2.2        Port 3128
Use the proxy server for all protocols
No Proxy for localhost:127.0.0.1

I then went to the terminal and entered

sudo service squid restart

which resulted in

squid start/running, process 3309

Now, when I go to FireFox and click on home to go to http://start.ubuntu.com/11.04/Google/?sourceid=hp

I get

The connection has timed out      


      The server at start.ubuntu.com is taking too long to respond.

The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer's network
connection.
 If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

I do not have this problem if I just use the system proxy settings.

Any assistance with this would be greatly appreciated,
Peter.

Answer 1

The obvious issues I could see are:

• IP Tables blocking connections, easiest way to test this is to temporarily disable any IPTable rules and seeing what happens with sudo iptables -X.

• Check what Port the proxy is running under with in squid config under the tag http_port and make sure you are using the same port in Firefox

Answer 2

Thank you to the people who answered my question.

My problem was HTTP Proxy 10.0.2.2. I was apparently supposed to use the host IP address, 192.168.1.6 in my case. I changed 10.0.2.2 to 192.168.1.6 and that has fixed the problem.