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kgaigl's avatar
kgaigl
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4 hours ago

Help with SSH Virtual Server

Hello,

we've 2 VS for SSH ( Delinea Secret Server ), Type Performance L4, NAT: AutoMap, an appropiate L4 tcp Profile and so on.

If I try the connection with ssh -vvv admin@service.com. the connection gets established, but I don't get the challenge for the Fingerprint and no Password Prompt.

A tcpdump looks fine, no Resets or else.

I can ssh to the Pool Members from a Linux Client and from the F5 CLI without Problems.

So I think the F5 drops anywhere the Key Exchange/Fingerprint.

Any Idea?

Thank you

Karl 

2 Replies

  • PVA is not active:

    [root@ldb-ara27-rz-05:Active:In Sync] ~ # tmsh show /sys hardware | grep -i pva
    [root@ldb-ara27-rz-05:Active:In Sync] ~ #

     

    and VS Type Standart I've already tried, no difference

    we've some other SSH VS, configured as Standart with some Docker Container, they are working well

  • Using a Performance Layer 4 Virtual Server may well bring PVA into the equation which would impact the tcpdump traffic captured so you could well be missing something important. 

     

    Details can be found in the following post: here

     

    The other thing I would try is using a Standard VS as a test and see what happens.