[lug] Squid config

[George Sexton]

>> How does Squid keep track of the files being cached?

It keeps an internal database of files that are on-hand.

>> How do we know if the cached files have changed on the original server?

Squid sends a request for the document (or image) along with the time stamp
for the copy it has on hand (if applicable). If the version that it has is
current, then the HTTP server sends back a 302 code which means document
unchanged. If the document has changed, then the HTTP server sends the new
version.


George Sexton
MH Software, Inc.
Voice: 303 438 9585
Fax: 303 469 9679
URL: http://www.mhsoftware.com

-----Original Message-----
From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]On
Behalf Of Subba Rao
Sent: Tuesday, February 15, 2000 5:08 PM
To: lug at lug.boulder.co.us
Subject: Re: [lug] Squid config


On  0, George Sexton <gsexton at mhsoftware.com> wrote:
> Unless you are using multiple squid servers, you really don't need to put
> any cache_peer lines in your config file. The cache_peer stuff is so that
> one cache can talk to another to see if it has a file.
>
> ------------------------------------------------------
> (0)root at myhost:~ => /usr/local/squid/bin/squid -z
> 2000/02/15 07:42:09| parse_peer: token='[proxy-only]'
> FATAL: Bungled squid.conf line 216: cache_peer myhost.mydomain.com parent
> 3128  3130  [proxy-only]
> Squid Cache (Version 2.3.STABLE1): Terminated abnormally.
>
> cache_peer myhost.mydomain.com     parent    3128  3130  [proxy-only]

Thanks for replying. I deleted the "cache_peers" tags from the config file
and squid works fine now.

How does Squid keep track of the files being cached? How do we know if the
cached files have
changed on the original server?

Thank you once again.

Subba Rao
subb3 at attglobal.net
http://pws.prserv.net/truemax/

 => Time is relative. Here is a new way to look at time. <=
http://www.smcinnovations.com

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