SSH between two servers Linux and AIX

Question

I am trying to do passwordless SSH between two server Linux (source) and AIX (destination)

For this i have created public key in Linux server and coped this public key in destination server user profile (in path .ssh/authorized_keys).Also this file is given proper permission.

In /etc/ssh/sshd_config i have uncommented below

PubkeyAuthentication yes
AuthorizedKeysFile        .ssh/authorized_keys

But when i am trying to to SSH from Linux to AIX i am getting below error

ssh user@AIX-server ls -a
Permission denied, please try again
Permission denied, please try again
Permission denied (publickey,password,keyboard-interactive,hostbased)

some debug logs

debug1: Trying next Authentication method: publickey
debug1:  Trying public key 
debug2: We did not sent packet, disable method

"Also this file is given proper permission." What about the directory? What version of sshd is running on the AIX server? — Gerard H. Pille, Jul 06 '20 at 08:56
@Gerard.Permission given to directory also.How to check what version of sshd running in linux. — AWS_Beginner, Jul 06 '20 at 10:29
What permission did you give to the directory? What version of sshd is running on AIX? — Gerard H. Pille, Jul 06 '20 at 11:06
@Gerard 700 for .ssh and 640 for .ssh/authorized_keys.How to check what version of sshd running on AIX ? — AWS_Beginner, Jul 06 '20 at 17:04
"/usr/sbin/sshd -d" may reveal enough: "debug1: sshd version OpenSSH_7.9, OpenSSL 1.1.1d 10 Sep 2019" — Gerard H. Pille, Jul 06 '20 at 18:23
@GerardH.Pille SSH version is openSSH_7.4p1.I have also added some debug logs in my main question. — AWS_Beginner, Jul 07 '20 at 05:37
Generally I tend [to point to this answer of mine](https://unix.stackexchange.com/a/128910/5462) for SSH troubleshooting. — 0xC0000022L, Jul 07 '20 at 10:10
On the client side, what uncommented lines do you have in /etc/ssh/ssh_config and .ssh/config ? — Gerard H. Pille, Jul 07 '20 at 11:01

score 1 · Answer 1 · answered Jul 06 '20 at 17:48

1

Try restarting the SSHD service sudo systemctl restart sshd.

answered Jul 06 '20 at 17:48

Fireant456

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Gerard H. Pille · Answer 2 · 2020-07-07T12:02:35.730

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After the configuration change you should restart the sshd service on AIX

restartsrc -s sshd

Also, you may have forgotten the home directory for the AuthorizedKeysFile

AuthorizedKeysFile  %h/.ssh/authorized_keys

edited Jul 07 '20 at 12:02

answered Jul 07 '20 at 09:27

Gerard H. Pille

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we have tried restarting sshd in AIX.But still facing same issue. – AWS_Beginner Jul 07 '20 at 09:30
@AWS_Beginner this sort of information belongs edited _into_ your question, though. – 0xC0000022L Jul 07 '20 at 10:11

SSH between two servers Linux and AIX

2 Answers2