How to change your DNS server

Below are simple examples for different Linux distributions:

🟩 Debian / Ubuntu

1. Edit the resolv.conf file:

   sudo nano /etc/resolv.conf
   

2. Add or replace the nameserver line:

   nameserver 62.210.0.1
   

3. Save and exit (Ctrl + O, Enter, Ctrl + X).

4. To make it persistent across reboots (optional):

   sudo apt install resolvconf -y
   echo "nameserver 62.210.0.1" | sudo tee /etc/resolvconf/resolv.conf.d/base
   sudo resolvconf -u
   

🟦 CentOS / AlmaLinux / Rocky Linux

1. Edit the network configuration:

   sudo nano /etc/sysconfig/network-scripts/ifcfg-eth0
   

2. Add or update this line:

   DNS1=62.210.0.1
   

3. Restart networking:

   sudo systemctl restart network
   

🟥 Fedora

1. Use NetworkManager CLI:

   nmcli con mod "System eth0" ipv4.dns "62.210.0.1"
   nmcli con up "System eth0"
   

🟨 Arch Linux

1. Edit the resolv.conf file:

   sudo nano /etc/resolv.conf
   

2. Add:

   nameserver 62.210.0.1
   

3. Save and restart networking:

   sudo systemctl restart systemd-networkd
   

✅ After saving, you can verify that DNS is working:

ping -c3 google.com

If the ping succeeds, your DNS setup is correct.