How to set a Static IP address in CentOs7 Minimal Server.

How to set a Static IP address in CentOs7 Minimal Server:

For certain type of servers , it is mandatory to assign a static IP address especially if they are serving the internet or if they are running any mission critical business applications. Ex: web server , Application server , DNS , DHCP , FTP , etc..

Prerequisites: CentOs7 Minimal Server.

To Set Static IP address in a CentOs 7 server, follow,

1. Login as root or an account with root privileges.
2. From the command line type, vi /etc/sysconfig/network-scripts/ifcfg-ens33   (ens33 is the network adapter of my OS, this may vary . To check your installed network adapter use IP addr or IP Link or route -n – Try the Output yourself).
3. Delete the config in the file and input the below lines ,

   TYPE="Ethernet"
   BOOTPROTO="static"
   IPADDR=192.168.55.170
   NETMASK=255.255.255.0
   GATEWAY=192.168.55.2
   DEFROUTE="yes"
   PEERDNS="yes"
   PEERROUTES="yes"
   NAME="ens33"
   UUID="9de06be5-a36b-4937-9c11-b64f829eeac4"
   DEVICE="ens33"
   ONBOOT="yes"
   ZONE=public

   Note: Enter your preferred IP address , Netmask and Gateway.

4. Save the config file and restart the network service using the command , systemctl restart network This will set Static IP address for your CentOs7 machine.

Keywords: 

CentOs 7, Static Ip , IP address, Servers, DHCP , Netmask , Gateway, DNS , Routing , Network , Networking , Networks , Linux/GNU , BootProto , Onboot, VI , Configuration ,IP addr , IP Link , Route -n, systemctl , route , Protocol .