cara mematikan pc dari jarak jau ubuntu

root@admintkj-desktop:/home/admintkj# cd
root@admintkj-desktop:~# ufw disable
Firewall stopped and disabled on system startup
root@admintkj-desktop:~# cd /etc/ssh
root@admintkj-desktop:/etc/ssh# ssh eka@192.168.1.6  (IP TARGET DAN NAMA TARGET)
The authenticity of host '192.168.1.6 (192.168.1.6)' can't be established.
ECDSA key fingerprint is 7e:1b:7d:4d:ef:4a:a2:06:1a:bf:47:62:99:12:07:6f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.6' (ECDSA) to the list of known hosts.
eka@192.168.1.6's
password:                                    (PASWOT TARGET)
Welcome to Ubuntu 11.04 (GNU/Linux 2.6.38-16-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife

New release 'oneiric' available.
Run 'do-release-upgrade' to upgrade to it.


The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

eka@eka-desktop:~$ sudo su
[sudo] password for eka:
root@eka-desktop:/home/eka# halt        (MASUK KAN PERINTA YG ADA MAU )

Broadcast message from eka@eka-desktop
    (/dev/pts/1) at 14:24 ...

The system is going down for halt NOW!
root@eka-desktop:/home/eka# Connection to 192.168.1.6 closed by remote host.
Connection to 192.168.1.6 closed.
root@admintkj-desktop:/etc/ssh#