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destroyedlolo
l33t
Joined: 17 Jun 2011
Posts: 846
Location: Close to Annecy (France)
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 Posted: Fri Apr 02, 2021 6:51 pm Post subject: Enabling obsolete protocol on SSH ? |
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Hello,
I have very very (very) old system I can't upgrade for various raison.
But since last SSH update, I can't connect anymore due to following message :
| Code: | | Unable to negotiate with 192.168.0.8 port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 |
Is it a way to re-enable one of them on my Gentoo system ?
Thanks
Laurent |
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alamahant
Advocate
Joined: 23 Mar 2019
Posts: 3879
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| Posted: Fri Apr 02, 2021 7:06 pm Post subject: |
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Hi
| Code: |
ssh -o KexAlgorithms=+diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 user@lhost
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You can add "host" entries in /etc/ssh/ssh_config,or in ~/.ssh/config like that:
| Code: |
Host <ip-or-domain>
KexAlgorithms +diffie-hellman-group1-sha1,algo2,algo3,etc
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destroyedlolo
l33t
Joined: 17 Jun 2011
Posts: 846
Location: Close to Annecy (France)
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| Posted: Fri Apr 02, 2021 7:43 pm Post subject: |
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Hello,
Thanks a lot, I'll do it.
Bye
Laurent |
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Networking & Security
