Squid related tutorial/FAQ

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

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

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

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

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

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

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

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

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

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

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

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

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

HowTo: Use Auto Config Proxy PAC File For Specific Domain

in Squid last updated November 20, 2012

I would like to use the squid proxy server only for one domain called foo.example.com. How do I auto-configuring proxy settings with a PAC file to hide one domain and connect everything else directly? How do I specify a URL in a PAC file to bypass proxy server? How do I create exceptions using a PAC file?

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