[ILUG] 302 redirection strangeness

[Niall O Broin]

On 28 Mar 2006, at 13:27, Martin Feeney wrote:

>> However, sensible as it sounds, it's not what's happening :-(  My   
>> original post was incorrect (it was late :-( ) and the count of  
>> 200  result codes I gave was in fact the count of ALL matches in  
>> the logs  for the redirected files on serverB, which did contain a  
>> significant  number of 304s. Apologies for the confusion, but the  
>> basic question  remains the same - why do 25% of the requesters to  
>> the original  server not follow the redirect?
>
> Maybe it's a DNS issue?  They're not resolving the redirected  
> site?  Has it been up long or changed IP adress recently?  You know  
> how some ISPs love to hold onto their old DNS cache.

Yes, but it's not that - the address of this server is long established.

> Can you grep for hosts that get 302s, but don't hit the redirect  
> server?  The answer's probably in the logs somewhere, if you grep  
> it enough.

That's easily done - I've grepped the logs for one file, and seen a  
side by side view of the requests to serverA and then to serverB. All  
that does is show me what IPs didn't follow the redirects.


Niall