Permission denied when I try to run ssh root@10.2.0.15

Question

ssh root@10.0.2.15

root@10.0.2.15's password:

Permission denied,please try again .

I'm not allowed to use the ssh root@10.0.2.15 ,for some reason it won't let me do that .

I suspect that either you have got the password wrong, or the sshd server setup on 10.0.2.15 does not allow a root ssh logon. See /etc/sshd_config and look at the PermitRootLogin parameter. The default on my system prevents root from logging in via a password. — Nick Sillito, Jan 22 '17 at 10:23
I changed the PermitRootLogin to yes and it still will not let me login. — ebatinstitute, Jan 22 '17 at 11:11
Remote machine is running Ubuntu? If yes, have you created a root password? Ubuntu root account is disabled by default check this. — dgonzalez, Jan 23 '17 at 02:31

Muhamed Huseinbašić · Answer 1 · 2017-01-22T10:26:37.470

You are seeing permission denied problem because you are maybe typing wrong password for root user. For example:

ssh root@103.28.71.20
Permission denied, please try again.

root@103.28.71.20's password: 
Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 2.6.32-042stab113.17 x86_64)

 * Documentation:  https://help.ubuntu.com/
Last login: Fri Jan 20 07:28:57 2017 from 109.175.99.154

In the first login prompt, I intentionally typed wrong password and got the response as you have. In the second one, I typed correct password and managed to login.

If you are sure the password is correct, this situation can also happen if user root is locked. In that case, there is no correct password for it, since no password is set for that user.

If you have access to user other than root, try logging in with it. If not, access that host somehow else and create another user or set the password for root (from my experience, it is better to use other users).

EDIT: As suggested by Nick Sillito in the comment, it is also possible that it is forbidden to ssh using root. Check your settings as suggested.

I know the password is correct ,it still won't accept the right password, I think account the is locked.. — ebatinstitute, Jan 22 '17 at 10:25
@ebatinstitute - you may find instructions on checking that here: http://askubuntu.com/questions/584847/how-do-i-check-if-my-root-password-login-is-disabled — Muhamed Huseinbašić, Jan 22 '17 at 10:32
I changed the PermitRootLogin to yes and it still will not let me login — ebatinstitute, Jan 22 '17 at 11:40

score 0 · Answer 2 · answered Jan 22 '17 at 12:02

0

Take note that the password for the root user is unset by default, and it is different from the user you created on installation.

Since you have permitted root login in your config, do make sure you have also set the password for root.

sudo -u root passwd

Let me know if this solves the issue.

answered Jan 22 '17 at 12:02

loongyh

188

Nope that didn't help, I'm still getting the same problem – ebatinstitute Jan 22 '17 at 12:06
Have you commented out this line?: PermitRootLogin without-password and restarted the sshd service: sudo systemctl restart sshd.service – loongyh Jan 22 '17 at 12:11
Take a look at this question, may be worth a shot attempting the solutions ;) – loongyh Jan 22 '17 at 12:14
I did that and I got this ssh: connect to host 10.0.2.15 port 22: Connection refused – ebatinstitute Jan 22 '17 at 12:22
Are you on the same LAN or connecting over VPN? – loongyh Jan 22 '17 at 12:28
I'm on the same LAN, I don't have any VPNs set up – ebatinstitute Jan 22 '17 at 12:33
Perhaps your sshd service is not running after you saved your modified config. Can you check on it with sudo systemctl status sshd.service? – loongyh Jan 22 '17 at 12:34
Let us continue this discussion in chat. – loongyh Jan 22 '17 at 12:35

Permission denied when I try to run ssh root@10.2.0.15

2 Answers2