[Gllug] webcaches

[Jason Clifford]

On Mon, 18 Nov 2002, Matthew Thompson wrote:

> I'm in charge of a number of dynamic websites which I like to check 
> from my home connection whilst developing. If my ISP had included a 
> webcache I would not trust the connection to test the site as you can 
> not be sure that you are seeing the served page or the cached page.

I am in a similar position. I am connected via NTL and they have awful 
web caches.

The key to dealing with the issue is to explicitely set a negative value 
expiry time in the headers you send with the page. Doing this prevents the 
cache from holding the page. You can also set the no cache pragma.

> For the bulk of people they are fine - what I object to is not being 
> given the choice to opt out - in the same way that all mail from a 
> freeserve customer has to go via their SMTP proxy. Plays havoc if 
> you're hosting a mailing list or otherwise from your DSL connection.

Having spammers on your network plays a lot more havok if you are the ISP.

Jason Clifford
-- 
UKFSN.ORG		Finance Free Software while you surf the 'net
http://www.ukfsn.org/			Sign Up Now


-- 
Gllug mailing list  -  Gllug at linux.co.uk
http://list.ftech.net/mailman/listinfo/gllug