How permanent change Ubuntu18.04 /etc/resolv.conf

How to permanent change Ubuntu 18.04 /etc/resolv.conf ?

Setp 1 :

Change /run/systemd/resolve/resolv.conf , add the following recods:

nameserver  8.8.8.8
nameserver 127.0.0.53
options edns0
search your.domain.com

Step 2 :

remove the soft link /etc/resolv.conf

rm -rf /etc/resolv.conf

Step 3 : Create new soft link to file /run/systemd/resolv.conf

ln -s /run/systemd/resolv.conf /etc/resolv.conf