My Squid proxy server running on port 3128. Since this is frequently scanned by adversaries looking for proxy servers; I’ve changed port to 10000 and restart squid. But my squid is not working on port # 10000 it only works on port # 3128? How do I force Squid to listen on uncommon port under CentOS Linux v5.3?
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Q. How do I block any website accessing the Internet using squid proxy server?
A. You can simply use squid ACL to block access to any web site. There are 3 steps:
#1. Create a text file with blocked domain name list such as baddomain1.com, mail.yahoo.com, gmail.com and so on
#2. Define Acl
#3. Restart squid
First, create a file called /etc/squid/blocked.domains.acl
# vi /etc/squid/blocked.domains.acl
Append domain names,
Save and close the file. Open squid.conf file:
# vi /etc/squid/squid.conf
Create acl called blockeddomain:
acl blockeddomain dstdomain "/etc/squid/blocked.domains.acl"
Deny http access, enter:
http_access deny blockeddomain
Close and save the file. Restart squid proxy server:
# /etc/init.d/squid restart
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