Hey,

 

since upgrading to 7.1.2 I have problems logging in via ssh. 

I use a publickey, which I have previously entered under Users -> root -> SSH authorized keys.

 

Under Unraid 7.0.1 the authentication has worked without any problems. Now I seem to get a public and private key mismatch.

Under Windows I have already checked if I can verify the private and public key. 

 

The following commdand executed under windows returns me exactly the publickey that is entered under the authorized keys:

ssh-keygen.exe -y -e -f <private_key>

 

The following can be seen in the logs:

May 14 15:17:43 PurpleGravity sshd-session[3945698]: Failed publickey for root from 192.168.0.10 port 64792 ssh2: ED25519 SHA256:<another key>

"Another key" is neither the public- nor privatekey fingerprint I use for authentication

 

I have also tried to create a fresh key pair again, unfortunately the same error occurs, also with a mismatch

Edited July 7, 2025Jul 7 by purplehexagon

I'm having the exact same issue and cannot figure out why it is happening, I think that it started when I upgraded to 7.1.0rc<something>.

 

I already tried to put a new key, it keeps refusing the key.

I don't know if its related but I can drop it here because I couldn't find anything relevant online.

Since the 7.1 update, my solid explorer app on my Android phone would no longer connect using sftp to my Unraid server. It turned out that Unraid changed/updated the accepted ciphers on the recent version. So adding these 2 lines to sshd_config solved the issue:

 

Ciphers aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],[email protected]

KexAlgorithms curve25519-sha256,[email protected],diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256

Then restart the SSH service:

 

/etc/rc.d/rc.sshd restart

To persist the change on reboot, make a copy of the file and put it inside:

 

/boot/config/ssh

 

I also had problem logging in with SSH after updating from 7.0.1 to 7.1.2.

For me it turned out I was missing an
/etc/rc.d/rc.sshd restart
after my plugin-script had copied my personalized version of the sshd_config to /etc/ssh. Apparently things ran in a different order before, or for some other reason I didn't have to restart th sshd before .

Well, I'm really sorry. For me it was just a typo in /etc/ssh/sshd.config where I had written "autorized_keys" without an "h".

I will mark it as resolved.

On 5/20/2025 at 11:28 AM, m33ts4k0z said:

I don't know if its related but I can drop it here because I couldn't find anything relevant online.

Since the 7.1 update, my solid explorer app on my Android phone would no longer connect using sftp to my Unraid server. It turned out that Unraid changed/updated the accepted ciphers on the recent version. So adding these 2 lines to sshd_config solved the issue:

 

Ciphers aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],[email protected]

KexAlgorithms curve25519-sha256,[email protected],diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256

Then restart the SSH service:

 

/etc/rc.d/rc.sshd restart

To persist the change on reboot, make a copy of the file and put it inside:

 

/boot/config/ssh

 

My SSH-Service won't start as soon as I add those two lines to the config. Im using 7.2. Beta 2, does someone know if it has to be done somehow else?