{"id":3609,"date":"2019-04-01T05:06:45","date_gmt":"2019-04-01T09:06:45","guid":{"rendered":"http:\/\/thebackroomtech.com\/?p=3609"},"modified":"2019-03-31T22:18:05","modified_gmt":"2019-04-01T02:18:05","slug":"change-ip-address-in-linux-using-terminal","status":"publish","type":"post","link":"https:\/\/thebackroomtech.com\/change-ip-address-in-linux-using-terminal\/","title":{"rendered":"Change IP Address in Linux Using Terminal"},"content":{"rendered":"\n

Hello everybody and welcome to another fun article that takes us back to basics in the world of Linux. I know this article might seem too basic, but a lot of people ask me \u201cHow do I change my IP address on my Linux box?\u201d all the time. For that, I\u2019ve created this simple to follow guide to come to your aid.<\/p>\n\n\n\n

Now that we\u2019ve got the introduction done, let\u2019s jump in and change the network configuration on a CentOS server.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

I\u2019m using a virtual machine, so I\u2019m going to have my console open to the server, but you can use Putty or Terminal depending on your needs or your environment.<\/p>\n\n\n\n

Once we\u2019ve logged in, we\u2019re at the default prompt, so the first thing we\u2019ll do is change our working directory to the network-scripts<\/em><\/strong> one.<\/p>\n\n\n\n

# cd\n\/etc\/sysconfig\/network-scripts<\/em><\/strong><\/pre>\n\n\n\n
Now in that folder we will have a file named ifcfg-<\/em><\/strong> and the type of network connection that you have. It can be eno<\/em><\/strong> for VMware machines or eth<\/em><\/strong> for other types of VMs or physical machines. But it always starts with ifcfg-<\/em><\/strong>.<\/p>\n\n\n\n
In my case the network\ninterface is ifcfg-eno16777984<\/em><\/strong>.<\/p>\n\n\n\n
So what I\u2019m going to\ndo next is to edit that file using vi and change the values.<\/p>\n\n\n\n
# vi\nifcfg-eno16777984<\/em><\/strong><\/pre>\n\n\n\n
Now we are going to\nget the following output:<\/p>\n\n\n\n
TYPE=\"Ethernet\"<\/em>
BOOTPROTO=\"none\"<\/em>
DEFROUTE=\"yes\"<\/em>
IPV4_FAILURE_FATAL=\"no\"<\/em>
IPV6INIT=\"yes\"<\/em>
IPV6_AUTOCONF=\"yes\"<\/em>
IPV6_DEFROUTE=\"yes\"<\/em>
IPV6_FAILURE_FATAL=\"no\"<\/em>
NAME=\"nic1\"<\/em>
UUID=\"e24c5ba8-46ad-41ed-af8e-1fb6f75d98bc\"<\/em>
DEVICE=\"eno16777984\"<\/em>
ONBOOT=\"yes\"<\/em>
IPADDR=\"192.168.1.20\"<\/em><\/strong>
NETMASK=\"255.255.255.0\"<\/em><\/strong>
GATEWAY=\"192.168.1.254\"<\/em><\/strong>
DNS1=\"192.168.1.1\"<\/em><\/strong>
DNS2=\"\"<\/em>
DNS3=\"\"<\/em>
DOMAIN=\"home\"<\/em>
IPV6_PEERDNS=\"yes\"<\/em>
IPV6_PEERROUTES=\"yes\"<\/em>
IPV6_PRIVACY=\"no\"<\/em><\/pre>\n\n\n\n
This file is pretty self-explanatory. We will need to change the value of IPADDR<\/em><\/strong>, NETMASK<\/em><\/strong>, GATEWAY<\/em><\/strong> and DNS<\/em><\/strong> to the values we want and then just reload the network adapter.<\/p>\n\n\n\n
After we\u2019ve changed the values, we will perform the following steps for the system to reload the network configuration.<\/p>\n\n\n\n
# ifdown<\/em><\/strong><\/pre>\n\n\n\n
# ifup<\/em><\/strong><\/pre>\n\n\n\n
Following those two commands, the network interface is taken offline and online, and the configuration is reloaded.<\/p>\n\n\n\n
Simple, right? Hope\nyou enjoyed the article!<\/p>\n","protected":false},"excerpt":{"rendered":"
Hello everybody and welcome to another fun article that takes us back to basics in the world of Linux. I know this article might seem too basic, but a lot […]<\/p>\n","protected":false},"author":8,"featured_media":3610,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"updated_on":"","footnotes":""},"categories":[32],"tags":[],"class_list":{"0":"post-3609","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-linux"},"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t