steve_weegie wrote:Primary reason for not running https is the larger overhead on the web server, as it has to encrypt the HTTP session. Depending on how your outbound load balancing works, i suspect that https would not solve your problem however, as there is no guarentee that the https traffic will be routed any differently.
just my $0.02 though
Outbound load balancing is round-robin, however, .... we have set up a persistence profile for any sites that use https so it is routed consistently to the same ISP. Changing to https would make this work for me but can appreciate if there are other reasons not to do it.
ironside wrote:.... don't you (and all the other employees) have this problem with every site that uses sessions? Anything you sign into?
Nope - none at all ! SE is unique...in more ways than we think ! All my work related sites change to https as soon as you have to sign-in hence the persistence profiler kicks in. Most other non-work related sites also change to https at log-in but some don't such as SELOC or Autotrader but consistently remain logged in. SE is the only one I can find even after checking with colleagues using other non-work sites/forums that has this dropping log-in issue.
Got a techy at work to search a bit more. Bit quiter today with bank holiday and all. Apparently phpbb sessions use unique session IDs
AND the users IP to identify users. From what I understand most forum sites switch off the IP identity link - apparently a minor mod of two numbers on two lines of code - as was seen as unnecessary overkill and was known to cause an issue for AOL users a few years ago as AOL used to route their users through a cluster of proxys. Looks like SE has this switched on.
I am not a big poster so followed this more up out of interest than seeing it as a need to change, although this forum does seem to be a bit different in its set up.

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Hopefully some of this makes sense ?!