[Bug 1279999] Re: ssh login no longer works over vpn

[Launchpad Bug Tracker]

[Expired for openssh (Ubuntu) because there has been no activity for 60
days.]

** Changed in: openssh (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1279999

Title:
  ssh login no longer works over vpn

Status in “openssh” package in Ubuntu:
  Expired

Bug description:
  jlquinn at wyvern:~$ lsb_release -rd
  Description:	Ubuntu 13.10
  Release:	13.10

  
  I log into work over an AT&T vpn.  When I upgraded my client to Ubuntu 13.10, I was unable to ssh into my work machines.  The ssh version upgrade was

  2014-02-06 12:45:05 upgrade openssh-client:amd64 1:6.1p1-4
  1:6.2p2-6ubuntu0.1

    The ssh server machines are running CentOS 6.4.  I alternatively
  get:

  Read from socket failed: Connection reset by peer

  or a hang.  Enabling debugging shows:

  debug1: Local version string SSH-2.0-OpenSSH_6.2p2 Ubuntu-6ubuntu0.1
  debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3
  debug1: match: OpenSSH_5.3 pat OpenSSH_5*
  debug1: SSH2_MSG_KEXINIT sent
  Read from socket failed: Connection reset by peer

  or

  debug1: Local version string SSH-2.0-OpenSSH_6.2p2 Ubuntu-6ubuntu0.1
  debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3
  debug1: match: OpenSSH_5.3 pat OpenSSH_5*
  debug1: SSH2_MSG_KEXINIT sent
  debug1: SSH2_MSG_KEXINIT received
  debug1: kex: server->client aes128-ctr hmac-md5 none
  debug1: kex: client->server aes128-ctr hmac-md5 none
  debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
  debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP

  
  After wandering the net, I found a suggestion to uncomment Ciphers and MACs in /etc/ssh/ssh_config.  Making this change lets me log in again.

  The default settings in ssh_config break a working system.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ssh 1:6.2p2-6ubuntu0.1
  ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  Date: Thu Feb 13 15:50:41 2014
  InstallationDate: Installed on 2010-04-30 (1385 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: openssh
  UpgradeStatus: Upgraded to saucy on 2014-02-06 (7 days ago)

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