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Full Discussion: kstart/k5start start-up script
Top Forums Shell Programming and Scripting kstart/k5start start-up script Post 302565498 by cambridge on Tuesday 18th of October 2011 05:00:55 AM
Old 10-18-2011
Java kstart/k5start start-up script
I've recently been working with k5start on a RHEL 5 client and noticed that it lacked a start-up script. As usual, it seems such a waste for me to write one and not share it with everyone else, so for those who may also need this at some point in the future:
Code:
#!/bin/bash
#
# k5start:      Keeps Kerberos 5 ticket-granting ticket active indefinitely
# Author:       Mark R. Bannister <cambridge@users.sourceforge.net>
#
# chkconfig: 345 19 74
# description:  Keeps Kerberos 5 ticket-granting ticket active indefinitely
#
# processname: /usr/bin/k5start
# config: /etc/krb5.conf
# pidfile: /var/run/k5start.pid

# Sanity checks.
[ -f /etc/krb5.conf ] || exit 0
[ -x /usr/bin/k5start ] || exit 0

# Source function library.
. /etc/init.d/functions

K5START_KEYTAB=/etc/krb5.keytab
K5START_MINUTES=30
K5START_OPTIONS=

# Source an auxiliary options file if we have one
# This can override K5START_KEYTAB, K5START_MINUTES and K5START_OPTIONS
# It can also set DAEMON_COREFILE_LIMIT and NICELEVEL
[ -r /etc/sysconfig/k5start ] && . /etc/sysconfig/k5start

RETVAL=0

start() {
    echo -n $"Starting k5start: "
    daemon /usr/bin/k5start -f $K5START_KEYTAB -bLK$K5START_MINUTES \
                        -p /var/run/k5start.pid $K5START_OPTIONS -U
    RETVAL=$?
    echo
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/k5start
    return $RETVAL
}

stop() {
    echo -n $"Stopping k5start: "
    killproc -p /var/run/k5start.pid k5start
    RETVAL=$?
    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/k5start
    echo
    return $RETVAL
}

restart() {
    stop
    start
}

# See how we were called.
case "$1" in
    start)
        start
        RETVAL=$?
        ;;
    stop)
        stop
        RETVAL=$?
        ;;
    status)
        status -p /var/run/k5start.pid k5start
        RETVAL=$?
        ;;
    restart)
        restart
        RETVAL=$?
        ;;
    try-restart | condrestart)
        [ -e /var/lock/subsys/k5start ] && restart
        RETVAL=$?
        ;;
    force-reload | reload)
        echo -n $"Refreshing k5start ticket cache: "
        killproc /usr/bin/k5start -ALRM
        RETVAL=$?
        echo
        ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|reload|condrestart}"
        RETVAL=1
        ;;
esac
exit $RETVAL

If you find that the k5start process is dying, you'll either need a root cron job to do /etc/init.d/k5start restart at intervals, or you can follow the advice in this posting and use respawn in /etc/inittab.

Best regards,
Mark.
 

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LEARN ABOUT MOJAVE

service

SERVICE(8)                                                    System Manager's Manual                                                   SERVICE(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service  runs  a System V init script or systemd unit in as predictable an environment as possible, removing most environment variables and
       with the current working directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT, or the name of a systemd unit.  The  existence  of  a
       systemd unit of the same name as a script in /etc/init.d will cause the unit to take precedence over the init.d script.  The supported val-
       ues of COMMAND depend on the invoked script. service passes COMMAND  and OPTIONS to the init script unmodified. For systemd  units,  start,
       stop, status, and reload are passed through to their systemctl/initctl equivalents.

       All scripts should support at least the start and stop commands.  As a special case, if COMMAND is --full-restart, the script is run twice,
       first with the stop command, then with the start command.

       service --status-all runs all init scripts, in alphabetical order, with the status command. The status is [ + ] for running services, [ - ]
       for stopped services and [ ? ] for services without a status command.  This option only calls status for sysvinit jobs.

EXIT CODES

       service calls the init script and returns the status returned by it.

FILES

       /etc/init.d
              The directory containing System V init scripts.

       /{lib,run,etc}/systemd/system
              The directories containing systemd units.

ENVIRONMENT

       LANG,  LANGUAGE,  LC_CTYPE, LC_NUMERIC, LC_TIME, LC_COLLATE, LC_MONETARY, LC_MESSAGES, LC_PAPER, LC_NAME, LC_ADDRESS, LC_TELEPHONE, LC_MEA-
       SUREMENT, LC_IDENTIFICATION, LC_ALL, TERM, PATH
              The only environment variables passed to the init scripts.

SEE ALSO

       /etc/init.d/skeleton
       update-rc.d(8)
       init(8)
       invoke-rc.d(8)
       systemctl(1)

AUTHOR

       Miloslav Trmac <mitr@redhat.com>, Petter Reinholdtsen <pere@hungry.com>

       Licence: GNU Public Licence v2 (GPLv2)

COPYRIGHT

       2006 Red Hat, Inc.,  Petter Reinholdtsen <pere@hungry.com>

Jan 206                                                                                                                                 SERVICE(8)
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