An old thread but I’m trying my luck since I’m facing the exact same problem. I’ve tried the steps proposed @Carlos_Estrada but with no luck. Unbound will still not start.
Excerpt from systemctl status unbound:
systemd: Started Unbound recursive Domain Name Server. unbound: Oct 24 23:25:39 unbound[6913:0] error: can't bind socket: Cannot assign request...or ::1 unbound: Oct 24 23:25:39 unbound[6913:0] error: cannot open control interface ::1 8953 unbound: Oct 24 23:25:39 unbound[6913:0] fatal error: could not open ports systemd: unbound.service: main process exited, code=exited, status=1/FAILURE systemd: Unit unbound.service entered failed state. systemd: unbound.service failed.
Any sugestion as to what might be causing this problem?
Thanks in advance!