I don't recall seeing a response to this request, and I'm nothing of an expert in Java, so here's a some-what educated guess:
Where you invoke "/usr/bin/java -cp /usr/local/lib/java/jes.jar Jes $JESARGS"
put "daemon " in front of that line.
daemon /usr/bin/java -cp /usr/local/lib/java/jes.jar Jes $JESARGS
and give that a whirl.
(daemon is the function brought in by the script processor for startup
services that backgrounds/detaches the call to the service itself
Brian Brunner
brian.t.brunner@xxxxxxxxxxxxxxx
(610)796-5838
>>> ByrneJB@xxxxxxxxxxxxx 10/24/05 05:19PM >>>
I have a single requirement to launch a java application on startup
as a service. The application is shipped in a file called jes.jar.
It requires three arguments: a dotted quad IP address, an initial
service port, and a translated service port.
I can get the application running as a console command. Can
someone point me to a site that documents how to script a sys V
init.d style script so that I can run this as a daemon process? I
tried copying a script in the age old fashion but I seem to be
missing something(s).
Lastly, I vaguely recall that there is a way to capture the pid of
a program started in the shell but I cannot find any reference to
it. I seem to recall that the construct $! or $$ contained the
value of the last program run. Can anyone here confirm this and/or
provide an example.
I am a digest subscriber so direct responses are appreciated (reply
to all).
Sample script
#!/bin/sh
#
# jes: Java Encryption Server for Javelin NSTV
connections.
#
# chkconfig: - 26 89
# description: Java Encryption Service to support SSL
# connections for the Javelin HP3000 NS/VT
# emulator java applette.
#
# Check if config file readable (and therefore exists).
[ -r /etc/sysconfig/jes ] || exit 0
# Read and execute the config file.
.. /etc/sysconfig/jes
# Check if variable has length zero and exit if true.
[ -z "$JESARGS" ] && exit 0
start()
{
echo -n $"Starting jes as daemon: "
/usr/bin/java -cp /usr/local/lib/java/jes.jar Jes $JESARGS
touch /var/lock/subsys/jes
echo
}
stop()
{
echo -n $"Shutting down jes (Java Encryption Service): "
/usr/bin/jes -K
killproc jes
rm -f /var/lock/subsys/jes
echo
}
[ -f /usr/bin/jes ] || exit 0
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload)
stop
start
;;
condrestart)
[ -e /var/lock/subsys/jes ] && (stop; start)
;;
*)
echo $"Usage: $0 {start|stop|restart|reload|condrestart}"
exit 1
esac
exit 0
sample configuration file:
# Options to Jes server for secure javelin connections
# VTNAME IP address of NSVT host (usually an HP3000)
VTNAME="192.168.0.12"
# VTPORT The service port that the NSVT service is listening
# on (Usually 1570)
VTPORT="1570"
# JESPORT The service port that JES listens to on this host for VT
# Javelin connections. This can be any port but it is
# required that:
# a. This port must be allowed through any exterior
# firewalls.
# b. The client must have the same port configured
# in default.j92
# (or encrypt.j92 if that is what you are using).
JESPORT="1570"
# These are concatenated here for use in the init.d script.
JESARGS="$VTNAME $VTPORT $JESPORT"
--
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James B. Byrne Harte & Lyne Limited
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