If you want to change the IP address of the service console in ESX 3.x you can using a command in the service console and if you are like me and know that console is most powerful thing to know about ESX then read on.
To change the IP address of the ESX 3.x host, you need to change the configuration of the vswif. By default this is vswif0 and this is assumed in this document. Login to the service console with root permissions, either by using root or doing a su - to get the permissions.Once in the service console runt the command "esxcfg-vswif -d vswif0". This command deletes the existing vswif0. Don't worry if you get a message about nothing to flush. Then you need to run the command to change the ip address, subnet mask and broadcast address. They are also specified in that order when the command is given. An example command is below.
"esxcfg-vswif -a vswif0 -p Service\ Console -i 10.1.1.1 -n 255.255.255.0 -b 10.1.1.255"
In this command the -a switch is to add a vswif, the \ in the Service\ Console is deliberate, the -i is the ip address, the -n is the netmask and the -b is the broadcast address.
You now need to change your default gateway, you can do this by editing the network file located at /etc/sysconfig/network. To do this at the command prompt, follow the steps below.
"cd /etc/sysconfig"
"nano network"
Then while in the nano editor, go to the location of the default gateway using the arrow keys.
Change the default gateway to your liking.
Hit Ctrl+X and Y to save
At this point you can run some commands to restart the vmware management, but I prefer to restart the server and will recommend you do that. Note that after you do change the main IP to your box you will have to change URL startup screen:
/etc/hosts
/etc/sysconfig/network
/usr/lib/vmware-mui/apache/conf/httpd.conf
When editing the hosts file, include the fully qualified domain name (FQDN).
Example: ip.address.of.server host.domain.com host
Note the order of the terms in the example above. If the FQDN and the alias are reversed, the remote console parameters will use the alias only.
In the httpd.conf file change the ServerName configuration setting to reflect the new FQDN.
Example: ServerName host.domain.com
After editing the files listed above, run the "hostname" command with the new FQDN to have the name change to take effect without a reboot.
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