Configure Static IP Address in CentOS
You have to follow these steps to configure static IP address in CentOS. You must required static IP if you want to upload SSL certificate on VPS (virtual private server).
Files that need network configuration are under /etc/sysconfig/network-scripts. So open the file with editor nano.
After you start your server running CentOS login as a root user. Type the command.
# nano /etc/sysconfig/network-scripts/ifcfg-eth0
Now you will see the default configuration.
Change the configuration like this.
Then save the file by pressing ctrl+x to exit and press y for confirmation.
Now restart the network services by this command.
[root@hostname~]# service network restart
Now verify the IP address by the following command.
[root@hostname~]# ifconfig
Following information will appear in front of you.
After configuring IP address now configure DNS. DNS information is stored in different file. The location is, /etc/recolv.conf. By using nano editor type following command.
[root@hostname~]# nano /etc/resolv.conf
By default, this file is empty, so enter at least one line here,
nameserver 4.2.2.2
The name server IP address may be different its depending on your network scenario. I am using “www.google.com”. Now save the file and exit. You can test the configuration by ping command.
[root@hostname~]# ping www.google.com
You have successfully configured the IP address and DNS information.
To install Apache on cenOS 7 click here.