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Session table with Virtual Command
Hi, thanks for the reply. The build follows the FTPS F5 build from:
https://devcentral.f5.com/s/articles/ftps-offload-via-irules
As well as FTPS, i want to take a value from the first VS (a dynamic value which changes with each connection) and make it available to the second VS. It works with a global variable. But since the value is dynamic, saving it in the session table is recommended by F5, rather than using the global variable (which would not scale with concurrent connections). However, maybe because of the ssl::disable/ssl::enable, the table seems not to save the value in the same table where it performs the lookup. That, or the table is reset by the time it does the lookup in the second VS. I thought, at one point, that the way the F5 handles the CMP (the VS is demoted from CMP when global variables are used), might have something to do with it - the global variable being available to the second VS might have meant that the memory was available to both. But, at this stage, i have no clue, it is becoming frustrating. I know that using the persistence profiles screws up the table config because values are retained and the "wrong" value is returned from a lookup in the same VS sometimes, so i'm not using persistence. Anyway, thanks for looking into it. I'm just grateful someone else is interested. I don't want to do IP blacklisting. Anyway, i'd be interested to know what you think. Because of where the table lookup occurs in the log, i don't think it is a race condition. Would you agree?
i agree that logically you wouldn't expect a race condition.
while i would like to built something similar i don't know if that is gonna happen soon.
my strong advise remains to get F5 support involved, they can built something similar and check, they also should know if something like ssl::disable/enable or persistence might have an effect.
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