[olug] Squid setup

[Jon H. Larsen]

Craig,

I'm running Squid on a Pentium 150 MHz with 64 MB Ram, and a 300 Meg 
cache and it works great - we have about 45 users.

Here are a few helpful things from my squid conf.

First off, we had problems with caching of PDF files from our own servers.  
(Same PDF name, newer version).  So, I threw this together.

# deny caching on PDF files 
acl PDF url_regex .pdf$
no_cache deny PDF

Next, a section on adult site blocking.  This was in 
the Squid FAQ, question 10.12.  I looked at all of them and basically put 
them together in some form.

The 'deny_info' statement is a custom HTML file that is displayed when a 
site on the list is visited.

# deny pornographic sites
acl porn url_regex "/usr/local/squid/etc/porn"
acl porn1 url_regex "/usr/local/squid/etc/porn1"
acl noporn url_regex "/usr/local/squid/etc/noporn"
deny_info ERR_ACCESS_DENIED porn porn1
http_access allow noporn all
http_access deny porn all
http_access deny porn1 all


Finally, you can prevent the caching of an individual site.

# deny cache of tux.foo-bar.com
acl FOO url_regex ^http://tux.foo-bar.com/$
no_cache deny FOO
 

Also, you may want to setup the logfile_rotate option, and create a cron 
entry to initiate it.

in squid.conf
logfile_rotate 10

in my cron.weekly: squidrotate

#!/bin/sh
#
/usr/local/squid/bin/squid -k rotate

Hope this helps,
Jon L.




On Thu, 2 Jan 2003, Craig Wolf wrote:

> Date: Thu, 02 Jan 2003 07:57:08 -0600
> From: Craig Wolf <CJWolf at mpsomaha.org>
> Reply-To: olug at olug.org
> To: olug at olug.org
> Subject: Re: [olug] Squid setup
> 
> Thanx to all for the links!  I will be going through them over the next
> week to get this thing up and running properly.  The machines aren't
> great machines (233MHz) but they do have 512MB ECC Ram and Raid 5 on the
> HD's (Raid Array card, not software).  
> I will have to say that m0ntar3, you are over my head with your basic
> computer science stuff.  I felt pretty good about my
> background/knowledge until I saw this paragraph.  Where do you work to
> need to know this or is that just a hobby to improve your mind?  Anyhow,
> thanx again for everyone's pointers!!
> 
> 
> Craig Wolf
> Linux Web Server Support
> Backup Supervisor
> Desktop/Network Specialist
> 402-894-6283
> 
> 
> >>> m0ntar3 at cox.net 12/30/2002 >>>
> Pardon the excitement, but web caching is just about the coolest topic
> 
> I've come across in a while. It's one of those things that makes a 
> person (me) stop and think. This type of cacheing if probably one of 
> thee best things an administrator can do for an organisation's network.
> 
> And it's contains so many of the ideas they teach in basic computer 
> science; Amdahl's Rule, Principle of Locality, Graph Theory (Flow 
> Diagrams), Algorithms (distributed systems; peering what-have-you), 
> Protocols ... and all that blah blah ... it's all in there.
> 
> Craig Wolf wrote:
> 
> >I have a working, and I use that term loosely, Squid cacheing server
> but
> >I need a little help from those that have a know with Squid. 
> Attached
> >is my Squid.conf file.    Would anyone be kind enough to give me any
> >pointers as to what else to change to make things better?  This is a
> >test we are running in the 3 high schools at Millard to see what
> >OS/Software to run a cacheing server on and you KNOW that I am
> >championing the cause.  Anyhow, any hints or suggestions would be
> >GREATLY appreciated!!  TIA!
> >
> >
> >Craig Wolf
> >Linux Web Server Support
> >Backup Supervisor
> >Desktop/Network Specialist
> >402-894-6283
> >
> >  
> >
> 
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-- 
 [ Jon H. Larsen  - email: relayer at omahadirect dot net         ]
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