Static IP in REDHAT Linux accessing by Oracle Virtual Box

I installed REDHAT linux  on oracle virtual box and now because i had to take a trip, i can only ssh into my server and i have to change my ip adress, Originally when i installed the os, i set it to DHCP, but now i want to change it to a static ip. so if you are in the same situation as i am, maybe you can learn from this on how you can change your ip address remotely..

these are the steps i took to make it happen

1. login as root

2. get your current IP address with this command:

ifconfig

The OUTPUT will look someting like this:

[root@host ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:D0:BC:08:09:BC
inet addr:70.238.17.69 Bcast:255.255.255.255 Mask:255.255.255.248
inet6 addr: fe80::2d0:b7ff:fe08:9bb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7174 errors:0 dropped:0 overruns:0 frame:0
TX packets:2305 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5339910 (5.0 MiB) TX bytes:170109 (166.1 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:34 errors:0 dropped:0 overruns:0 frame:0
TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4275 (4.1 KiB) TX bytes:4275 (4.1 KiB)

OR you can also get the ip from the network configuration file wit this command:
COMMAND to show configuration:

cat /etc/sysconfig/network-scripts/ifcfg-eth0

THe OUTPUT will look like this (i have it set to DHCP)

DEVICE=eth0
BOOTPROTO=dhcp
HWADDR=00:D0:B7:08:09:BB
ONBOOT=yes

Change to static IP as follows :

Just comment the existing ip configuration.

OUTPUT for static IP (example)

#
# File: ifcfg-eth0
#
DEVICE=eth0
IPADDR=192.168.1.100
NETMASK=255.255.255.0
BOOTPROTO=static
ONBOOT=yes
#
# The following settings are optional
#
BROADCAST=192.168.1.255
NETWORK=192.168.1.0

4. Disable Firewall on RHEL / CentOS / RedHat Linux

Next enter the following three commands to disable firewall.

# service iptables save

# service iptables stop

# chkconfig iptables off

If you are using IPv6 firewall, enter:

# service ip6tables save

# service ip6tables stop

# chkconfig ip6tables off

5.  Now save your changes and reboot your server.

***********************

6. The network type should be bridged on Virtual Box. 

Cheers

Rajani