Ubuntu dns

Edit the Netplan configuration file (usually located in /etc/netplan/). For example: sudo nano /etc/netplan/01-network-manager-all.yaml. To configure a static IP, modify the network: section with your desired IP address, gateway, and DNS servers.

edit

sudo nano /etc/netplan/01-network-manager-all.yaml

Apply the changes:

sudo netplan apply

can view your DNS On this file

nano /etc/resolv.conf

sudo nano /etc/systemd/resolved.conf

1. یا در صورت استفاده از resolvconf:

echo -e “nameserver 178.22.122.100\nnameserver 185.51.200.2” | sudo tee /etc/resolv.conf

1. آخرین روش استافده شده برای سرور ایمیل این بود

 sudo nano /etc/systemd/resolved.conf

1. for loca server

 sudo nano /etc/netplan/00-installer-config.yaml

1. add dns to list in file

Example

# This is the network config written by 'subiquity'
network:
  ethernets:
    ens160:
      addresses:
      - 192.168.10.100/24
      nameservers:
        addresses:
        - 8.8.8.8
        - 1.1.1.1
        - 185.20.163.2
        - 185.20.163.4
        - 87.107.110.109
        - 87.107.110.110
        search:
        - 8.8.8.8
        - 1.1.1.1
        - 185.20.163.2
        - 185.20.163.4
        - 87.107.110.109
        - 87.107.110.110
      routes:
      - to: default
        via: 192.168.10.1
  version: 2

run apply

sudo netplan apply

view chenged file

sudo nano /etc/resolv.conf

Example

nameserver 127.0.0.53
options edns0 trust-ad
search 8.8.8.8 1.1.1.1 185.20.163.2 185.20.163.4 87.107.110.109 87.107.110.110