Squid related tutorial/FAQ

How to install Squid Proxy Server on Ubuntu 20.04 LTS Linux

last updated April 25, 2020 in Networking, Security, Squid, Ubuntu Linux

How do I install Squid Proxy Server on Ubuntu 20.04 LTS Linux server for web clients? How can I filter out internet traffic for LAN users such as blocking domains, unwanted URLs, office hours for Internet access, and more using Squid running on Ubuntu server?

How to find out why squid proxy exited due to signal 9 with status 0

last updated February 4, 2017 in Debian / Ubuntu, Linux, Squid, Troubleshooting, Ubuntu Linux

I am getting an error that read as “The proxy server is refusing connections.” I am using Squid 3 with Ubuntu Linux 16.04 LTS server and how can I find out why my squid proxy server died unexpectedly?

HowTo Block Internet Explorer Browser With Squid Proxy Server on a Linux/Unix Server

last updated May 4, 2015 in Linux, Squid, UNIX

I want to block Internet Explorer (MS-IE) browser on a squid proxy server running on a Linux or Unix-like systems. How can I block IE on a squid proxy server version 3.x?
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Clear Squid Proxy Cache And Re-create the Cache Directories

last updated June 2, 2020 in Linux, Squid, UNIX

How do I clear squid cache? How do I re-create the cache directories on a server where Squid version 3.x is currently running in Linux or Unix based server?

Squid Proxy Server Change Outgoing IP Address

last updated January 15, 2013 in Linux, Squid, UNIX

I have Squid caching proxy server deployed on Rackspace based server in UK. This server has four IP address. I would like to change outgoing IP addresses from default 1.2.3.1 to 1.2.3.4. How do I change proxy server outgoing IP address under Linux or Unix operating systems?

Set/Export: http_proxy With Special Characters In Password Under Unix / Linux

last updated December 4, 2012 in BASH Shell, Linux, Squid, UNIX

My proxy server password has special characters such as !,@, and so on. How do I set and export the variable called http_proxy or HTTP_PROXY when password has special characters under Unix like operating systems?

HowTo: Test a Proxy PAC File Syntax With Syntax Checker

last updated November 20, 2012 in Linux, Squid, UNIX

How can I test a Proxy PAC file syntax under Apple OS X / Linux / *BSD or Unix like operating systems using command line options?

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