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Author Topic: ssh kex_exchange_identification  (Read 120 times)

Offline andyj

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ssh kex_exchange_identification
« on: December 01, 2025, 12:33:39 PM »
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: [Select]
kex_exchange_identification: read: Connection reset by peer
Connection reset by 192.168.3.4 port 22
Why just one, and why when I revert it back to TC 15 it works fine again?

Online patrikg

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Re: ssh kex_exchange_identification
« Reply #1 on: December 01, 2025, 01:00:12 PM »
time ?

Offline Paul_123

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Re: ssh kex_exchange_identification
« Reply #2 on: December 01, 2025, 01:39:14 PM »
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.





Offline andyj

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Re: ssh kex_exchange_identification
« Reply #3 on: December 01, 2025, 03:07:48 PM »
I switched it back to TC 16 and making no other changes now it works, of course. Thanks for everyone's help!