>another caveat that i've found to be problematic is when going 
>from http to https (or the other way round) you can lose state 
>as you go from one machien to the other. The load balancers do 
>a pretty good job of the work, however, we've definitely seen 
>jumpage from aol and webtv clients, as well as IIRC earthlink 
>and mindspring==- where the routing is complex, and there can 
>be multiple public IPs that a single session proxy can come 
>from. I've seen requests from different IPs coming in with the 
>same cookie or session IDs.
>
>it's an imperfect solution, and we're still working on ours.
>
>One thing i've thought of doing has been to setup a linux-vs 
>cluster for the straight port-forwarding, then use 
>apache/mod_ssl to handle the ssl negotiations, and pass it on 
>to the real app server with mod_proxy.
 
I have heard that AOL change dial-up IPs every 3-4 seconds. I have no data
to back this up, but considering their large user base it wouldn't be
surprising as they'd need to ensure that there are no unused IPs out there
(although of course a user should be able to renew the lease on the IP they
already have, but there you go).

So what you've observed makes some kind of sense.

- 
John Airey
Internet systems support officer, ITCSD, Royal National Institute for the
Blind,
Bakewell Road, Peterborough PE2 6XU,
Tel.: +44 (0) 1733 375299 Fax: +44 (0) 1733 370848 [EMAIL PROTECTED] 

Agnostic (Greek) = Ignoramus (Latin)


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