Squid Deny Users Accessing a Website

To deny users access to a website using Squid, you will need to edit the Squid configuration file and add an "acl" (Access Control List) and a "http_access" rule to block access to the website.

Here are the steps to deny users access to a website using Squid:

1. Open the Squid configuration file in a text editor. The location of the configuration file may vary depending on your system, but it is typically located at "/etc/squid/squid.conf" or "/etc/squid/squid.conf.default".

2. Add an "acl" entry to the configuration file to define a group of users or networks that you want to block from accessing the website. For example:

acl blocked_users src "/etc/squid/blocked_users.txt"

This will create an "acl" named "blocked_users" that includes all the users or networks listed in the file "/etc/squid/blocked_users.txt".

3. Add a "http_access" rule to the configuration file to block access to the website for the users or networks defined in the "acl" entry. For example:

http_access deny blocked_users www.example.com

This will deny access to the website "www.example.com" for all the users or networks defined in the "blocked_users" "acl".

4. Save the configuration file and restart Squid.

With these steps, Squid should block access to the specified website for the users or networks defined in the "acl" entry. You can use the "squid -k reconfigure" command to apply the changes to the Squid configuration without restarting the service.

Note: You can use different "acl" types and parameters to define the users or networks that you want to block from accessing the website. Consult the Squid documentation for more information on the available "acl" types and parameters.