fedora 39 change dns

concepts

1. in fedora 39, /etc/resolve.conf is managed by systemd-resolved

how

1. edit /etc/systemd/resolved.conf

   • sudo vi /etc/systemd/resolved.conf
     

   • add/modify DNS=223.5.5.5
2. restart systemd-resolved

   • sudo systemctl restart systemd-resolved
     

3. check

   • systemd-resolve --status
     

   • #nslookup www.google.com.hk
     nslookup www.baidu.com