how to check whether the ssh tunnel is up

[Alex Bligh]

Vincent,

On 27 Apr 2013, at 12:42, Vincent Lin wrote:
> Thank you for your suggestion. But I have to use openssh.

autossh is a small wrapper for openssh. It's not a different ssh.

Alex



> Best Regard
> Vincent
> 
> 
> On Sat, Apr 27, 2013 at 4:37 PM, Alex Bligh <alex at alex.org.uk> wrote:
> 
> On 26 Apr 2013, at 10:06, Vincent Lin wrote:
> 
> > Is there a way to show whether the ssh
> > tunnel is up?
> 
> In addition to the suggestions you have already been
> sent, can I suggest you look at autossh? It uses
> a combination of -L and -R to send packets to the
> other end and back, to check the tunnel is working
> as well as up, and reopens the tunnel if it's
> not up.
> 
> --
> Alex Bligh
> 
> 
> 
> 
> 

-- 
Alex Bligh