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Re: [Spam] Re: Why bash stops process in background?

From: Peter Volkov Alexandrovich
Subject: Re: [Spam] Re: Why bash stops process in background?
Date: Thu, 25 Aug 2005 19:29:03 +0400

On Чтв, 2005-08-25 at 08:46 -0600, Bob Proulx wrote:
> Peter Volkov Alexandrovich wrote:
> > P.S. I'm not subscribed to the list, so please CC me.
> > I need to run ssh in background just to forward ports. But anytime I put
> > it into background process state became stoped and this does not allow
> > me to send packets through forwarded ports. 'bg' command does not help.
> Very likely the ssh program is trying to do I/O.  The kernel will
> notice this and stop the process so that you can bring it into the
> foreground and interact with it.
> This really has nothing to do with bash and is simply the behavior of
> BSD style job control as implemented by the kernel.

Very interesting. I did not know that. Thank you for explanation.

> Try giving ssh the -n option.  Also, you may want to use -N too.  Here
> is the ssh man page snippets.

[snip info from man page.]

Yes. -nN options help me.

Thank you, Bob, again,

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