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ssh kex_exchange_identification

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andyj:
I updated a few servers this weekend from TC 15 to TC 16.2 (all 64-bit). On just one of them, when I try to ssh into it I get

--- Code: ---kex_exchange_identification: read: Connection reset by peer
Connection reset by 192.168.3.4 port 22

--- End code ---
Why just one, and why when I revert it back to TC 15 it works fine again?

patrikg:
time ?

Paul_123:
What key algo are you using on that client server combo?   

I forget what version of OpenSSH is in 16.2, but on piCore16, OpenSSH removed DSA keys from support.

andyj:
I switched it back to TC 16 and making no other changes now it works, of course. Thanks for everyone's help!

andyj:
While I'm in this rabbit hole, I noticed that in the openssh extension /usr/local/etc/init.d/openssh has a few references to DSA keys which are no longer supported by ssh-keygen in the same extension. Other than complaining about an unknown key type it starts ok, but for the next time it's updated a clean up is in order.

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