[Bug 1406987] [NEW] Fails DNS lookup in IPv4-only networks

[Steve Riley]

Public bug reported:

Trying to run mtr in a network without IPv6 results in the following
error, even when told to use IPv4 only:

$ mtr -4 name.of.some.site
Unable to allocate IPv6 socket for nameserver communication: Address family not supported by protocol

Looks like mtr is still trying use IPv6 for name resolution. This is
fixed in version 0.86:

https://github.com/traviscross/mtr/compare/v0.86...master

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: mtr (not installed)
Uname: Linux 3.18.1-031801-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Jan  1 12:53:16 2015
InstallationDate: Installed on 2014-05-10 (236 days ago)
InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: mtr
UpgradeStatus: Upgraded to utopic on 2014-10-25 (68 days ago)

** Affects: mtr (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug utopic

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https://bugs.launchpad.net/bugs/1406987

Title:
  Fails DNS lookup in IPv4-only networks

Status in mtr package in Ubuntu:
  New

Bug description:
  Trying to run mtr in a network without IPv6 results in the following
  error, even when told to use IPv4 only:

  $ mtr -4 name.of.some.site
  Unable to allocate IPv6 socket for nameserver communication: Address family not supported by protocol

  Looks like mtr is still trying use IPv6 for name resolution. This is
  fixed in version 0.86:

  https://github.com/traviscross/mtr/compare/v0.86...master

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: mtr (not installed)
  Uname: Linux 3.18.1-031801-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Jan  1 12:53:16 2015
  InstallationDate: Installed on 2014-05-10 (236 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  SourcePackage: mtr
  UpgradeStatus: Upgraded to utopic on 2014-10-25 (68 days ago)

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