Squid Syntax
 

hello friends can anyone pls show how to block all websites and ports using squid and allow only those i will specify. i really neede badly for my work.

There's a useful document at http://wiki.squid-cache.org/SquidFaq/SquidAcl that describes different configurations for Squid. Have you had a look at it yet or do you have any specific problems with creating your access lists?

-yes i do have a problem in creating acl. i dont know the exact order of placing acl tags.

-also i tried using this tag to whitelist all websites except google but even google is not accessible

acl allowedwebsite dstdomain .google.com
http_access deny !allowedwebsite

Reading through the squid.conf on my system, it looks as though the default is to deny all. Can you try something like the following and see if it works?