How to disallow logout

[Atom Smasher]

On Fri, 10 Sep 2010, Ivan Voras wrote:

> 1) power outage of the server
> 2) power outage on the client
> 3) network problems (ssh or TCP connection drop)
> 4) administrative command (e.g. root executes "killall $shell")
>
> ?
>
> I don't think there is a way to protect from all of those, so any effort 
> in protecting from only part of the problem looks useless.
========================

you forgot cosmic rays, nuclear war and zombie apocalypse, among other 
failure modes. *NOTHING* is capable of protecting against everything; a 
good solution will most always have pitfalls; as a 
sysadmin/engineer/manager one has to either accept the pitfalls or find a 
more acceptable solution, which usually means different pitfalls. that 
doesn't mean a given solution is useless.


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