[Bug 1342412] Re: ssh-copy-id hangs when using ControlMaster auto

[Robie Basak]

** Description changed:

+ [Workaround]
+ 
+ ssh -O exit hostname # this will kill all ssh connection to that host
+ ssh-copy-id username at hostname # now it works because it's the first connection
+ # continue using ssh as normal.
+ 
+ Thanks to Ruben Laguna (ecerulm) in comment 7.
+ 
+ [Original Description]
+ 
  On ubuntu 14.04 amd 64, running openssh-client  1:6.6p1-2ubuntu2, when using in ~/ssh/config
-   ControlMaster           auto
+   ControlMaster           auto
  
  If you open an ssh connection to an host, and after try to run ssh-copy-id on the same host, trying to reuse the already opened connection, ssh-copy-id hangs.
  If you press CTRL-D, the script goes on, without installing any key.
  
  It seems that the script hangs at lines
-  REMOTE_VERSION=$(ssh -v -o PreferredAuthentications=',' "$@" 2>&1 |
-                   sed -ne 's/.*remote software version //p')
+  REMOTE_VERSION=$(ssh -v -o PreferredAuthentications=',' "$@" 2>&1 |
+                   sed -ne 's/.*remote software version //p')
  
  Found another bug report here: http://www.gossamer-
  threads.com/lists/openssh/bugs/57363
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: openssh-client 1:6.6p1-2ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-32.56-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Jul 16 01:15:34 2014
  InstallationDate: Installed on 2013-10-12 (276 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  RelatedPackageVersions:
-  ssh-askpass       N/A
-  libpam-ssh        N/A
-  keychain          N/A
-  ssh-askpass-gnome 1:6.6p1-2ubuntu2
+  ssh-askpass       N/A
+  libpam-ssh        N/A
+  keychain          N/A
+  ssh-askpass-gnome 1:6.6p1-2ubuntu2
  SSHClientVersion: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014
  SourcePackage: openssh
  UpgradeStatus: Upgraded to trusty on 2014-06-10 (35 days ago)
  modified.conffile..etc.ssh.ssh.config: [modified]
  mtime.conffile..etc.ssh.ssh.config: 2014-06-19T17:39:06.965908

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https://bugs.launchpad.net/bugs/1342412

Title:
  ssh-copy-id hangs when using ControlMaster auto

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