Originally posted by: prinav

I am facing the critical issue with password less ssh on AIX boxes:

When I try to login from one server to another server (RSA key enabled) without passord it shows the following message:

ssh 10.14.5.143
Connection to 10.14.5.143 closed by remote host.
Connection to 10.14.5.143 closed.

however it works fine if RSA key not enabled.

Please suggest the solution

Originally posted by: tony.evans

Try running both the server and client with more information turned on.

For the client,

ssh -v

Run the server manually from the command line if you can using

sshd -d

That should give you plenty of text to start understanding the issue.

Originally posted by: prinav

dear Tony,

Thanks for initiative, however no abnormal things i found.

bash-2.04# sshd -d
debug1: sshd version OpenSSH_3.8.1p1
debug1: read PEM private key done: type RSA
debug1: private host key: #0 type 1 RSA
debug1: read PEM private key done: type DSA
debug1: private host key: #1 type 2 DSA
debug1: Bind to port 22 on 0.0.0.0.
Bind to port 22 on 0.0.0.0 failed: Address already in use.
Cannot bind any address.

Originally posted by: tony.evans

You didn't stop the existing demon.

You have to,

1. stop sshd
2. run sshd from the command line with -d
3. and then run the client command with -v to connect

Then you'll get your debugging information.