ssh connect to systems using hostname which are exist in different domains

nagendrar · 12-08-2009, 05:14 AM

I want to do ssh connection to two or more systems using hostname, these systems (hostanmes) are existing in different domains.

How can I connect?

EX: ssh root@<hostaname1>
ssh root@<hostaname2>

Please help me

ThanQ,
NAgendra Rednam

repo · 12-08-2009, 05:18 AM

Do the hostnames resolve?

Code:

ping hostaname1
ping hostaname2

use ssh as user then become root using su or sudo

nagendrar · 12-08-2009, 05:24 AM

one host is reachable but for another host i am getting "ping: unknown host" message

Here I can not resolve two different domains at the same time.Please help me.

ThanQ,
Nagendra

repo · 12-08-2009, 05:37 AM

Quote:

Here I can not resolve two different domains at the same time.Please help me.

What o you mean by different domains?
Are they in your LAN
Are they in a different subnet?
Are they outside your network?

nagendrar · 12-08-2009, 05:43 AM

These two IPs have Different DNS search paths.

ThanQ,
NAgendra

nagendrar · 12-08-2009, 05:45 AM

Here I able to do ssh connection or ping using host IP,

ThanQ,
Nagendra R

repo · 12-08-2009, 05:48 AM

If the IP is permanent,
You can add them to your /etc/hosts file

Quote:

ip hostname

nagendrar · 12-08-2009, 05:58 AM

Yes, now I able to ping using hostname.

ThanQ for help . Is it possible to ping without adding individual hosnames in /etc/hosts file, here all hosts have same DNS search path.

ThanQ,
Nagendra R

repo · 12-08-2009, 06:01 AM

If your DNS server doesn't resolve the hostnames, you need to add them in the hosts file.
However, you can ask IT to add them to the DNS server.