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How to update the DES server’s IP?

Written by Randy Campollo on . Posted in MVI.

Description: This is a step-by-step instruction on how to update the server’s IP to whatever purpose it may serve

Issue: Customer can’t access the server(DES website) on their office network

Cause: Customer made some network changes and needs to update the server’s IP

Resolution:

  1. Access the server via SSH in its old IP. If it’s not accessible, ask the customer to set up a remote session on the BUPC and access the server via 192.168.10.10.

  2. Login to SSH

  3. Issue the command: ifconfig

Note: this is to check which network card is being used for the old IP.

4. Backup the config file before making changes

]# cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0_bak

5. Get the new network information and the desired server IP:

Server’s new IP:
New network’s gateway:
New network’s netmask:

6. Update the configuration file using the network information from Step 5, then save the file.

]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
7. Restart the network services
]# service network restart

8. Verify if ifconfig will now show the updated IP (Note: Ask the customer to check if they can access the website through the new IP.)