Same pubkey allows access on one user, but not another

Question

So I have a centos 7 server with 2 users.

User1 has the ~/.ssh/authorized_keys file with proper permissions and with externaluser's public key in it.

User2 has the ~/.ssh/authorized_keys file with proper permissions and with the same externaluser's public key in it.

Externaluser can ssh to User1 with no problems, however, he gets Permission denied (publickey,gssapi-keyex,gssapi-with-mic) error when trying to ssh to User2.

Why does this happen? It's literally the same public key, properly pasted into the authorized_keys file of each user, using the same method.

Please, try ssh -v for more detailed information about what's happening and add it to your question. — francescop21, Oct 09 '18 at 15:48
Check the owner and permissions on .ssh and on authorized_keys. — RalfFriedl, Oct 09 '18 at 16:14
Please check https://unix.stackexchange.com/questions/36540/why-am-i-still-getting-a-password-prompt-with-ssh-with-public-key-authentication and show the results. — Jeff Schaller, Oct 09 '18 at 18:42

score 0 · Answer 1 · edited Oct 10 '18 at 07:26

0

Thank you RalfFriedl for your useful comment, the problem was the .ssh folder permissions.

Check the owner and permissions on .ssh and on authorized_keys.

edited Oct 10 '18 at 07:26

Kamil Maciorowski

21,864

answered Oct 10 '18 at 06:51

iamAguest

483

Same pubkey allows access on one user, but not another

1 Answers1