I would not recommend the changing network settings from remote hosts.
So this info is as-is..
Linux Mint 12 ------ the remote host ( connect to the Linux Mint via SSH )
Before disabling network-manager , configure the IP addresses etc into the /etc/network/interfaces file as below.
# cat /etc/network/interfaces
iface lo inet loopback
iface eth0 inet static
iface eth1 inet dhcp
# sysv-rc-conf network-manger off;sysv-rc-conf networking on;/etc/init.d/network-manager stop;/etc/init.d/networking restart
sysv-rc-conf is similar to chkconfig.
You can install it by apt-get install sysv-rc-conf.
connect to the new address 192.168.0.1
# ifconfig eth0 | grep "inet addr"
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
# apt-get remove network-manager*