Debian Buster: Manual add DNS Server for Indihome user

Before manual editing connections:

# apt-get update
Hit:1 http://ftp.debian.org/debian buster-backports InRelease                 
Err:3 http://kartolo.sby.datautama.net.id/debian buster InRelease             
  Temporary failure resolving 'kartolo.sby.datautama.net.id'
Err:2 http://httpredir.debian.org/debian buster InRelease                     
  Connection failed [IP: 36.86.63.180 80]
Err:4 http://security.debian.org/debian-security buster/updates InRelease
  Connection failed [IP: 36.86.63.180 80]
Reading package lists... Done
W: Failed to fetch http://security.debian.org/debian-security/dists/buster/updates/InRelease  Connection failed [IP: 36.86.63.180 80]
W: Failed to fetch http://kartolo.sby.datautama.net.id/debian/dists/buster/InRelease  Temporary failure resolving 'kartolo.sby.datautama.net.id'
W: Failed to fetch http://httpredir.debian.org/debian/dists/buster/InRelease  Connection failed [IP: 36.86.63.180 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.

Add DNS Server manually by editing connections. Add 8.8.8.8, 1.1.1.1 in

1. IPv4 Settings -> Additional DNS Servers
2. IPv4 Settings -> Additional search domains

 

After manual editing connections:
# apt-get update
Hit:1 http://httpredir.debian.org/debian buster InRelease                     
Hit:2 http://ftp.debian.org/debian buster-backports InRelease                 
Hit:3 http://kartolo.sby.datautama.net.id/debian buster InRelease             
Hit:4 http://security.debian.org/debian-security buster/updates InRelease
Reading package lists... Done