Reset Centos

copy_right · 11-04-2010, 02:26 AM

Hi, i'm newbie of Linux
I have real Machine installed Centos (I called Server A). I often log by SSH.
When I type command line : dhclient, i can't ping the ip of Server A or can't log Server A by SSH.
Beside , i manage another machine installed Centos(Calles Server B). Server B logged by SSH.
Server A and Server B are the same building. I'm at another place.
I can't reset Server A or server B by my hands.
Anybody help me to reset Server A by command line thought Server B?
Thanks so much.

nowonmai · 11-04-2010, 08:00 AM

So can Server B access Server A in any way? Can you even ping it?

If it's on the same network segment as Server B, but you just don't know the IP, try using nmap to discover it.

On Server B:

nmap a.b.c.0/24 will return a list of all the hosts on the /24 address space beginning with a.b.c.

copy_right · 11-04-2010, 09:29 PM

Quote:

Originally Posted by nowonmai

So can Server B access Server A in any way? Can you even ping it?

If it's on the same network segment as Server B, but you just don't know the IP, try using nmap to discover it.

On Server B:

nmap a.b.c.0/24 will return a list of all the hosts on the /24 address space beginning with a.b.c.

Server B can't access, ping the ip of server A. Could you give me others solutions?