Interview Question: How to block thousands of sites at one go in squid.

Iyyappan · 02-29-2012, 12:56 AM

In an interview, they asked me how to block thousands of sites at one go. I mean i have all the urls with me, how will i block them all. I said, we need to update the urls manually or block by any unique name. Can anyone how this is possible

EricTRA · 02-29-2012, 01:51 AM

Hi,

If you have the URLs or domains in a file then it would be as simple as adding an ACL, pointing to that file, to the configuration, apply it in a rule and reload Squid. Is that what you mean or do you need the entire 'how to'?

Kind regards,

Eric

Iyyappan · 02-29-2012, 02:33 AM

It u would be really helpful if u provide 'How To'

EricTRA · 02-29-2012, 03:33 AM

Quote:

Originally Posted by Iyyappan

It u would be really helpful if u provide 'How To'

Hi,

For example add this ACL to the Squid configuration file:

Code:

acl blockedsites url_regex -i "/etc/squid/blocked.txt"

and add this to the access rules:

Code:

http_access deny blockedsites

Put the URL/domains or even part of them (they're treated as regular expressions so any instance that coincides will be denied) in the file /etc/squid/blocked.txt and reload Squid:

Code:

service squid reload

Kind regards,

Eric