AIX. SSH. Host key verification failed in dev_rd

[evgeny_turovsky]

Hi all..

I'm have a problem with SSH on AIX..

Our Cluster installation consist of 1 DB server, 1 CI and 2 Application server (not in cluster configuration).

We configure ssh for db13 (for remote call of br** programs).

From appl server 1 all works fine

From CI server all works fine

But from appl server 2 we can start any job for db13(for example, full backup). But when we try to see Detail log, we are see error::

SXPG_COMMAND_EXECUTE gescheitert für: BRTOOLS: - Ursache:: program_start_error: siehe SYSLOG für weitere Info

In log file dev_rd we can error:

Host key verification failed

When we try to use

ssh db_host

We have no any problem with connection. First time system ask for key generation. After it we have no problem with direct connection to db_host.

Also I'm try to recreate known_hosts file for each host... After it connection from appl server 1 and CI FINE, but from appl server 2 doen't work...

I think problem between Appl server 2 and AIX system where this appl server 2 installed. But where???

Pls help.

Best Regards,

Evgeny.

[Former Member · Accepted solution]

When i tried to ssh <DB_host> and worked as well.

Please check your known_hosts whether it has the entry for your db server? Also have you imported your public key of your APP2 to your DB server?

[evgeny_turovsky · Accepted solution]

Yes, I'm import it.

As I already say, for app_server1 all works find, but for app_server2 (with same configurations) all works fine on OS level, but if I try to read logs from db13 (Detail log), I'm get an error..

[Former Member · Accepted solution]

If possible try to reboot appserver 2 application .

Sometimes it wil not read files (It shoule not happen still just give a try)

Regards,

[evgeny_turovsky · Accepted solution]

Already try it twice ((

Edited by: Evgeny Turovsky on Nov 19, 2010 6:49 PM

[Former Member]

Make sure physical and virtual both hostnames are mainatined in APP2 for CI&DB.

I means /etc/hosts should be in sync with app1.

Regards,

[evgeny_turovsky]

file /etc/hosts maintained correctly.

> ssh dbhost // virtual hostname

> ssh dbhost01 // physical hostname 1

> ssh dbhost02 // physical hostname 2

works correctly and connect to this hosts works now directly without keys (all keys already generated).