Install Squid Proxy:
First, install Squid Proxy server:
bashsudo pacman -Syu squidConfigure Squid Proxy:
Edit the Squid configuration file to configure URL filtering:
bashsudo nano /etc/squid/squid.confAdd or uncomment the following lines to enable URL filtering:
arduinoacl block_sites dstdomain "/etc/squid/block_sites.acl" http_access deny block_sitesSave the changes and exit the editor.
Create Keyword List:
Create a file containing keywords that you want to block:
bashsudo nano /etc/squid/block_sites.aclAdd the keywords, each on a separate line:
arduino.adult .porn .explicitSave the changes and exit the editor.
Update Permissions:
Ensure that Squid has the necessary permissions to read the ACL file:
bashsudo chown -R proxy:proxy /etc/squid/block_sites.aclRestart Squid:
Restart the Squid service to apply the changes:
bashsudo systemctl restart squidTest the Configuration:
Test the configuration by attempting to access websites containing the specified keywords from a web browser. If the configuration is correct, access to these websites should be blocked.
To disable the keyword-based blocking, you can simply remove or comment out the relevant lines in the Squid configuration file (/etc/squid/squid.conf), restart the Squid service, and delete the keyword list file (/etc/squid/block_sites.acl).

