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Old 05-25-2003, 05:48 AM   #1
markus1982
Senior Member
 
Registered: Aug 2002
Location: Stuttgart (Germany)
Distribution: Debian/GNU Linux
Posts: 1,467

Rep: Reputation: 46
SCRIPT: check if auto-mount mount-points are still mounted


As a side note: this is just a thread part of my main thread which is destinated at securing debian!

I'd like to thank unSpawn for this script. I have just adjusted it (made it lame), so credits go to unspawn:
Code:
----------------------------------------------------------------------
created check_mount script	   [ /usr/local/sbin/check_mounts.sh ]
----------------------------------------------------------------------

#!/bin/sh

# --------------------------------------------------------------------
# purpose:	check mounted partitions,
#		log if not mounted + mount and notify admins
# args:		none
# deps:		bash, GNU utils, logger, /proc, /etc/fstab
# --------------------------------------------------------------------



# --------------------------------------------------------------------
# configuration
# --------------------------------------------------------------------
FSTAB_EXCL="(^#|noauto|none|user)"
PROGNAME=$(basename $0)
export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
# --------------------------------------------------------------------



# --------------------------------------------------------------------
# configure destination address for emails (admins)
# --------------------------------------------------------------------
if [ -f /etc/default/suk_scripts ]; then
	. /etc/default/suk_scripts;
else
	ROOTMAIL="root@`hostname --fqdn`"
fi
# --------------------------------------------------------------------



# --------------------------------------------------------------------
# functions
# --------------------------------------------------------------------
function err_descr() {
	case "$?" in
		0)	err_rv="OK"
			;;
		1)	err_rv="FAILED"
			;;
		*)	err_rv="$?"
			;;
	esac;
}

function log() {
	/usr/bin/logger -i -p kern.warn -t ${PROGNAME} "$@";
}

function log_mail() {
	mail -s "$@" ${ROOTMAIL} ; log "$@";
}
# --------------------------------------------------------------------



# --------------------------------------------------------------------
# check mounts
# --------------------------------------------------------------------
if [ ! -f /proc/mounts ]; then
	log "WARN: /proc wasn't mounted!"
	mount -t proc proc /proc; err_descr
	err_descr
	log_mail "WARN: mounted /proc (${err_rv})"
fi


egrep /etc/fstab -ve "${FSTAB_EXCL}" | while read i; do i=( ${i} )
	# empty ?
	case ${#i[0]} in
		0) log_mail "FATAL: I shouldn't have read ${i[@]} !"
		   eval ${i[0]:=ERROR} 2>/dev/null
		   ;;
	esac

	# select device
	case ${i[0]} in
		/dev*)
			dev=( ${i[0]} ${i[1]} )
			;;
		*)
			dev=( UNKNOWN UNKNOWN )
			;;
	esac

	# munge rootfs
	case "${#dev[1]}" in
		1) case "${dev[1]}" in
			/) dev[0]=/dev/root
			;;
		   esac
		   ;;
	esac

	# check mounts
	grep /proc/mounts -e ${dev[0]} &> /dev/null
	case "$?" in
		1) case ${dev[0]} in
			/dev/root)
				/bin/true
				;;
			UNKNOWN)
				;;
			*)
				log "WARN: ${dev[1]} isn't mounted"
				mount ${dev[1]}; err_descr
				log_mail "INFO: mounted ${dev[1]}"
				;;
		   esac
		   ;;
	esac
done
# --------------------------------------------------------------------


exit $?

----------------------------------------------------------------------




----------------------------------------------------------------------
added check_mounts to cron		  [ /etc/cron.d/check_mounts ]
----------------------------------------------------------------------
	*/15 * * * *	root	/usr/local/sbin/check_mounts.sh
----------------------------------------------------------------------
 
  


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