You need to learn more about Unix shell and process control.
ssh -n -x -l user host "nohup start_server.sh < /dev/null > /dev/null 2>&1 &"
Either the server needs to properly run itself as a daemon. Which is
to fork() itself
into the background, close all TTYs (stdin, stdout, stderr), and make
itself it's own
process group leader. A process called "daemonizing".
Or, you have to do what you can via the shell. "nohup" turns of the
HUP signal, so
when the shell exits and sends the HUP signal to all child processes, the server
process will ignore it. Redirect stdin, stdout, stderr to/from
/dev/null, kind of
disassociates it from the terminal. Then put it in the background, so the shell
can return.
On Fri, 20 Aug 2004 21:35:54 -0700 (PDT), k l <yoda_2732002@yahoo.com> wrote:
Hi,
How can I start a server on a remote
host and disconnect while
leaving the server running on the remote
machine?
I am trying sth like:
ssh -n -x -l user host start_server.sh
(I've used ssh-agent and ssh-add to enter
my passphrase)
The problem is that this keeps the ssh connection
open(with or without output from the remote server).
I would like to use this in a script which goes
through a list of hosts and starts a server on
each machine. I do not want to keep the ssh
connection open or in the background as the list
of remote hosts is fairly large.
I am using OpenSSH_3.6.1p2 on Enterprise RedHat Linux
v.3. This is probably a basic question that may
have been covered on the list but I could not find
an answer in the archives.
Thank you for your help,
kamen
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-MCP
