Installation et sécurisation d'une station Debian 3.0 stable

#!/bin/sh

NAGIOS_BIN=/usr/local/nagios/bin/nagios
NAGIOS_CFG=/usr/local/nagios/etc/nagios.cfg
NAGIOS_FLG=" -d "
NAGIOS_CHK=" -v "
NAGIOS_LCK=/var/nagios/var/nagios.lock
NAGIOS_CMD=/var/nagios/var/rw/nagios.cmd

# Check we have required binaries and variables
if [ ! $NAGIOS_BIN ] || [ ! $NAGIOS_CFG ] || [ ! $NAGIOS_CHK ] || [ ! $NAGIOS_FLG ] || [ ! $NAGIOS_FLG ] || [ ! $NAGIOS_CMD ]
  then
    echo "init_nagios.sh configuration error"
    exit 0
  fi

test -f $NAGIOS_BIN || exit 0
test -f $NAGIOS_CFG || exit 0

case "$1" in

  start)
    if [ -f $NAGIOS_LCK ] && kill -0 `cat $NAGIOS_LCK` 2> /dev/null
      then
        echo "Nagios already started..."
        exit 1
      else
        if [ ! -f $NAGIOS_LCK ] && pidof nagios > /dev/null 2&>1
          then
            echo "Nagios already started but no lockfile..."
            exit 0
          else
	    if pidof nagios > /dev/null 2&>1
	      then
         	echo "Nagios lockfile exist but no daemon is started..."
            	echo "Deleting lockfile and starting Nagios..."
            	rm -f $NAGIOS_LCK $NAGIOS_CMD
            	$NAGIOS_BIN $NAGIOS_FLG $NAGIOS_CFG
            	exit 1
	    fi
        fi
    fi
    echo "Starting Nagios..."
    $NAGIOS_BIN $NAGIOS_FLG $NAGIOS_CFG
    exit 1
  ;;

  stop)
    if [ -f $NAGIOS_LCK ] && kill -0 `cat $NAGIOS_LCK` 2> /dev/null
      then
        echo "Stopping Nagios..."
        kill -9 `cat $NAGIOS_LCK` > /dev/null
        rm -f $NAGIOS_LCK
        rm -f $NAGIOS_CMD
        exit 1
      else
        if [ ! -f $NAGIOS_LCK ] && pidof nagios > /dev/null 2&>1
          then
            echo "Nagios seems to be running but no lockfile exists... stopping..."
            killall nagios
            rm -f $NAGIOS_LCK
            rm -f $NAGIOS_CMD
	    exit 0
          else
            if [ -f $NAGIOS_LCK ]
              then
                echo "Nagios isn't running but lockfile exists... removing..."
                rm -f $NAGIOS_LCK
                rm -f $NAGIOS_CMD
                exit 0
            fi
        fi
    fi
    echo "Nagios is not running ..."
  ;;

  restart)
    $0 stop
    $0 start
    exit 1
  ;;

  configtest)
    $NAGIOS_BIN $NAGIOS_CHK $NAGIOS_CFG
    exit 1
  ;;

  *)
    echo "Usage : /etc/init.d/init_nagios.sh {start|stop|restart|configtest}"
    exit 1
  ;;

esac

exit 0