In netcat-openbsd 1.218-3ubuntu1 used by Ubuntu Jammy the message is only a warning and only written if providing the -v argument.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to netcat-openbsd in Ubuntu. https://bugs.launchpad.net/bugs/1900197 Title: netcat fails with an error with -v Status in netcat-openbsd package in Ubuntu: Confirmed Bug description: In a fresh install of Ubuntu Server 20.04.1, netcat -vlp 8000 fails with the following error message: netcat: getnameinfo: Temporary failure in name resolution Name resolution, both forwards and backwards, works as expected elsewhere (e.g., ping or nslookup). There's an upstream Debian patch that changes getnameinfo() errors into warnings that should suffice. I'm not sure whether the underlying getnameinfo() error is inherited as well, but neither Debian Buster or Sid have such an error, nor does Ubuntu Server 18.04.5. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netcat-openbsd/+bug/1900197/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
