What is start-stop-daemon ?
The problem I have is that I can find absolutely no documentation
on "start-stop-daemon". There is a useless stub of a man page
that directs one to the --help output or the source code.
/sbin/start-stop-daemon is apparently a perl script, but I do
not know perl nor do I find any explaination in the script,
other than the --help text.
I think that if it is enough of a Debian standard that virtualy
all of the scripts that dpkg installs in /etc/init.d use it,
we are due an explanation of what it does, how it is used, etc.
I would propose, instead, the use of standard shell commands,
e.g.
DAEMON=/somepath/somedaemon
CONFIG=/etc/rc.config.d/thisscript
if [ -f $CONFIG -a -x $DAEMON ] ; then
[ $VERBOSE ] && echo $0 $1
. $CONFIG
else
[ $VERBOSE ] && echo no ${DAEMON}, exiting.
exit 0
fi
if ps -ef|grep -v grep|grep ${DAEMON} ; then
# DAEMON is already running, dont bother to start it.
[ "$1" = "start" ] && exit 0
else
# DAEMON is not running, dont bother to stop it.
[ "$1" = "stop" ] && exit 0
fi
Without the docs, I don't know if this is what start-stop-daemon
does, but this sort of thing is routinely done under some of the
commercial unix's such as Solaris, Dgux, and Hpux.
Jim Pick wrote:
>
> > So how do I start/stop a plain program during boot/shutdown? Is it
> > safe, that root runs this thing? Should I run it under another
> > account? Which one and do I have to create a homedir for that?
> > This program should only be started once and not by "normal"
> > users. How do I achieve this? Where would such a program be
> > located (based on debian philosophy)?
>
> I'd run it as another user - definitely not as root. Especially
> when you are running a binary file where you can't inspect the
> source.
>
> Just create another user, ie. "des", and give it a home directory.
>
> Here's a rather long-winded example of using start-stop-daemon
> to run a process as another user. (This is for a postgresql
> server I have installed in /usr/local)
>
> start-stop-daemon --start --verbose --exec /usr/local/pgsql/bin/postmaster
> --startas /bin/sh -- -c 'echo "/usr/local/pgsql/bin/postmaster -D/var/pgdata >
> /var/log/postgresql/server.log 2>&1 &" | su postgres'
>
> There's probably an easier way to do this...
>
> I was participating too, until they changed the programs around and I
> didn't have enough time to re-setup everything.
>
> They've completed 2.6753% of the keyspace - wow. :-)
>
> Cheers,
>
> - Jim
>
> ---------------------------------------------------------------
>
> Part 1.2 Type: application/pgp-signature
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