[Bug 1900197] Re: netcat fails with an error with -v

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: netcat-openbsd (Ubuntu)
       Status: New => Confirmed

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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.

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