Problem: Ubuntu unable to resolve hosts after a disrupted VPN session.
Reason: The DNS server not reset to normal from that of the VPN network.
Fix: On terminal, do –
- sudo vi /etc/resolv.conf
- Remove the “dns domain” and “dns server” lines from this file.
- Save and close the file.
- Restart browser or the app which needs to connect to internet.

Sreekumar (KJ) has been a hobby programmer from school days. Codemarvels is his personal blog from the year 2010, where he writes about technology, philosophy, society and a bit about physics.
He now runs a conversational AI company – DheeYantra – focusing his efforts to help businesses improve operational efficiency using digital employees powered by AI.