Guidelines

How do I change nameserver in CentOS?

by Rhyley Bryan

How do I change nameserver in CentOS?

how to change dns server in centos 6

  1. IP and Gateway configuration.
  2. nano /etc/sysconfig/network-scripts/ifcfg-eth0.
  3. vi /etc/sysconfig/network-scripts/ifcfg-eth0.
  4. Gateway Configuration.
  5. vi /etc/sysconfig/network.
  6. nano /etc/resolv.conf.
  7. vi /etc/resolv.conf.

How do I change my IP address to a domain in CentOS 7?

Four things to do:

  1. Add the hostname entry to /etc/hosts .
  2. If your hostname is “your_hostname”, type hostname your_hostname at a command prompt to make the change effective.
  3. Define the hostname in /etc/sysconfig/network to make this setting persist across reboots.

How do I change the hostname and IP address in CentOS 7?

How to Change HostName and IP-Address in CentOS / RedHat Linux

  1. Use hostname command to Change Hostname.
  2. Modify the /etc/hosts file.
  3. Modify the /etc/sysconfig/network file.
  4. Restart the Network.
  5. Change ip-address Temporarily Using ifconfig.
  6. Change ip-address Permanently.
  7. Modify /etc/hosts file.
  8. Restart the Network.

Is there a way to change the hostname in CentOS 7?

After installing the CentOS 7 on my server, I tried to change hostname by modifying the /etc/sysconfig/network, but the change did not take an effect of the modification. Even after multiple reboots of the server, the hostname remained localhost.localdomain.

How to edit a DNS server in CentOS?

We can now edit the CentOS DNS config with: Change the nameserver values to your preference, in our case to Cloudflare. Press Ctrl + O to save and Ctrl + X to exit nano or Shift+zz to save and exit in vi. You can use a similar technique to edit the gateway independently.

How to display a computer name in CentOS 7?

In order to display a computer name in CentOS 7 and RHEL 7 systems via console, issue the following command. The -s flag displayed the computer short name (hostname only) and the -f flag displays the computer FQDN in the network (only if the computer is a part of a domain or realm and the FQDN is set). # hostname # hostname -s # hostname -f.

What should my domain name be in CentOS 7?

As CentOS 7 only allows Fully Qualified Domain Names (FQDN’s), double-check the hostname you plan to use. Acceptable values include lower-case letters a to z, numbers 0 to 9, period, and hyphen.