Public bug reported:
>From the man page:
-g Allows remote hosts to connect to local forwarded ports.
When working with a control socket, this works fine if -g is included
with the initial connect attempt, for example:
$ cat ~/.ssh/config
Host *
ControlMaster auto
ControlPath ~/.ssh/%r@%h:%p
$ ssh -gTfNL 12345:localhost:12345 host
$ netstat -tln
tcp 0 0 0.0.0.0:12345 0.0.0.0:*
LISTEN -
$ lsof -n
ssh 182446 user 3u IPv4 76397177 0t0
TCP 192.168.0.9:51181->192.168.0.15:ssh (ESTABLISHED)
ssh 182446 user 4u IPv4 76397181 0t0
TCP *:3128 (LISTEN)
ssh 182446 user 5u IPv6 76397182 0t0
TCP *:3128 (LISTEN)
and similarly:
$ ssh -g host
user@host:~$ exit
$ ssh -gTfNL 12345:localhost:12345 host
$ netstat -tln
tcp 0 0 0.0.0.0:12345 0.0.0.0:*
LISTEN -
However, if it isn't then -g is ignored on subsequent attempts to
forward ports:
$ ssh host
user@host:~$ exit
$ ssh -g -L 12345:localhost:12345 host
$ netstat -tln
tcp 0 0 127.0.0.1:12345 0.0.0.0:*
LISTEN -
$ lsof -n
ssh 182399 user 3u IPv4 76390396 0t0
TCP 192.168.0.9:51178->192.168.0.15:ssh (ESTABLISHED)
ssh 182399 user 4u unix 0x0000000000000000 0t0
76390976 /home/user/.ssh/user@host
ssh 182399 user 6u IPv6 76392394 0t0
TCP [::1]:3128 (LISTEN)
ssh 182399 user 7u IPv4 76392395 0t0
TCP 127.0.0.1:3128 (LISTEN)
This doesn't really make sense: ssh should still be capable of binding
to the correct address as requested.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ssh (not installed)
ProcVersionSignature: Ubuntu 3.8.0-33.48~precise1-generic 3.8.13.11
Uname: Linux 3.8.0-33-generic i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Tue Dec 10 12:59:33 2013
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release i386
(20120817.3)
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: openssh
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: openssh (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
** Summary changed:
- ssh -g has no effect is master socket already open
+ ssh -g has no effect if master socket already open
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to openssh in Ubuntu.
https://bugs.launchpad.net/bugs/1259939
Title:
ssh -g has no effect if master socket already open
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1259939/+subscriptions
--
Ubuntu-server-bugs mailing list
Ubuntu-server-bugs@lists.ubuntu.com
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
