SSH connect key exchange nego failed

Support
1

Hi,

For a few days now, I can't connect using SSH.
I get this message
Error: Key exchange negotiation failed.

So far, It was working fine with just a login password.
Any advices ?

Regards

2

Hi
EasyMorph v5.6 and higher supports the following key exchange methods:

curve25519-sha256
curve25519-sha256@libssh.org
ecdh-sha2-nistp256
ecdh-sha2-nistp384
ecdh-sha2-nistp521
diffie-hellman-group-exchange-sha256
diffie-hellman-group-exchange-sha1
diffie-hellman-group16-sha512
diffie-hellman-group14-sha256
diffie-hellman-group14-sha1
diffie-hellman-group1-sha1

Ensure that at least one of them is allowed in the KexAlgorithms of your sshd_config.
https://www.man7.org/linux/man-pages/man5/sshd_config.5.html

3

Hi,

Thanks for the answer.
I need to connect to a QNAP nas so I can manage to get the info but I can't change any parameter.
I'll try to sort it out.

Regards

4

We have released an updated version of EasyMorph, which includes improvements to SSH support. These enhancements may help resolve the SSH connection issues you were experiencing.

1 Like
5

Thank you soooooo much !!!
seems to work perfectly now.

1 Like