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I have 2 Ubuntu 22.04.3 LTS servers. Both are the same version.

1:chia@chia00:~$ cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.3 LTS"

2:chia@hp1:~$ cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.3 LTS"

When I try to ssh between the hosts I get the following error:
chia@hp1:~$ ssh chia00
Unable to negotiate with 172.16.153.152 port 22: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group1-sha1

So, I did some reading and saw a suggestion to add the offered algorighm, but still didn't work. All that did was to change the "offer":
chia@hp1:~$ ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 chia00
Unable to negotiate with 172.16.153.152 port 22: no matching host key type found. Their offer: ssh-rsa,spki-sign-rsa
Interestingly, going from host 2 to host 1 works fine.

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    You will likely need to pass a -oHostKeyAlgorithms=+ssh-rsa option as well - see for example SSH returns: no matching host key type found. Their offer: ssh-dss
    – steeldriver
    Commented Nov 12, 2023 at 15:54
  • chia@hp1:~$ ssh -o HostKeyAlgorithms=+ssh-rsa -o KexAlgorithms=+diffie-hellman-group1-sha1 chia00 Unable to negotiate with 172.16.254.156 port 22: no matching cipher found. Their offer: aes256-cbc,3des-cbc,blowfish-cbc,arcfour
    – usao
    Commented Nov 12, 2023 at 19:56
  • I tried your suggestion, but wasn't able to get through. Still getting same type of offer from remote host.: chia@hp1:~$ ssh -o HostKeyAlgorithms=+ssh-rsa -o KexAlgorithms=+diffie-hellman-group1-sha1 chia00 Unable to negotiate with 172.16.254.156 port 22: no matching cipher found. Their offer: aes256-cbc,3des-cbc,blowfish-cbc,arcfour
    – usao
    Commented Dec 3, 2023 at 6:17

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