Check
multiple websites' status.
[ Note: First
copy the check_http plugin in /usr/lib/nagios/plugins/ path
]
#!/bin/bash
#####
#Script will
check all given websites and give status by the help of check_http
plugin
#Created by
Shankar Patel
#Create date
:10-10-2012
#######################################################################
F_P=""
msg_ok=""
exit_status=0
#also
you can create a file with the list of websites and
#SITES_LIST="file_name_of_list_websites"
#for
WEB in $(cat $SITES_LIST)
for WEB in
{staging.sabsebolo.com,staging.sabsetalk.com,google.com,yyyyyyyyyyyyyyyyahoo.com}
do
/usr/lib/nagios/plugins/check_http
$WEB > /dev/null
result_check=$?
if [ "$result_check"
-ne 0 ] ; then
F_P="$F_P
$WEB"
exit_status=2
else
msg_ok="$msg_ok
$WEB"
exit_status=0
fi
done
if
[ "$F_P" = "" ]
then
echo
"OK. All Websites are OK."
else
echo
"CRITICAL. $F_P websites showing down. and $msg_ok are
up."
exit
$exit_status;
fi
Script
Daily Backup To remote location
#!/bin/bash
SSHKEY=/backup/id_rsa
TOBACKUP=$1
HOSTNAME=$(hostname)
TODAY=`date
+%Y%m%d`
check_time=0
tar_done=1
tar_done=1
#create
tar file
tak_bkp()
{
if
[ "$check_bkp" -lt 4 ]
then
scp
-o StrictHostKeyChecking=no -i $SSHKEY
/backup/${HOSTNAME}_${TODAY}.tar.gz
incoming-backup@heimdall:/mnt/datastore1/incoming-backup/ >
/backup/backup_done
[
"$?" -eq 0 ] && rm
/backup/${HOSTNAME}_${TODAY}.tar.gz && exit 0 ||
check_bkp=$(($check_bkp+1)) && tak_bkp ;
else
echo
-e "Can not create BKP file! \n ackup not done properly" >
/backup/backup_done
exit
2;
fi
}
create_tar()
{
if
[ "$check_tar" -lt 4 ]
then
tar
-cpzf /backup/${HOSTNAME}_${TODAY}.tar.gz
--exclude="${HOSTNAME}_${TODAY}.tar.gz" --one-file-system
$TOBACKUP
[
"$?" -eq 0 ] && tak_bkp
check_time=$(($check_time+1))
else
echo
-e "Can not create tar file! \nbackup not done properly" >
/backup/backup_done
exit
2;
fi
}
create_tar
Script to
check backup done or not
#!/bin/bash
#####
#Script
will check backup copied or not on remote location.
#Created
by Shankar Patel
#Create
date :10-10-2012
#######################################################################
TODAY=`date
+%Y%m%d --date="1 day ago"`
bkp_exist=`ssh
-o StrictHostKeyChecking=no -i /backup/id_rsa
incoming-backup@heimdall "ls
/mnt/datastore1/incoming-backup/${HOSTNAME}_${TODAY}.tar.gz
&>/dev/null && echo -e 'OK' || echo -e 'CRITICAL'"
2>/dev/null`
[
"$bkp_exist" == "OK" ] && echo "OK.
Yesterday's backup done." && exit 0
[
"$bkp_exist" == "CRITICAL" ] && echo
"CRITICAL. Yesterday's backup done." && exit 2
Nagios plugin
to check Openfiles
check_openfiles.sh
if it is
greater then 85% then it will show warning
if it is
greater then 90% then it will show warning
otherwise it
will show ok.
#!/bin/bash
###########
#
This script will check no open files and if open files will be
greater then 85% of max-open-files then it will show warning and open
files will be greater then 90% then it will show critical.
#
#
It does not require any additional perameter at execution time
#
it automatically takes perameter from system files
###########
Shankar Patel 22/08/1012
open_files=`cat
/proc/sys/fs/file-nr | awk '{print $1}'`
max_open_files=`cat
/proc/sys/fs/file-nr | awk '{print $3}'`
warn_of=$(($max_open_files*15/100))
crit_of=$(($max_open_files*10/100))
if
[ "$open_files" -lt "$warn_of" ]
then
echo
"OK. Number of open files = $open_files | openfiles=
$open_files"
exit
0;
elif
[ "$open_files" -gt "$warn_of" ] && [
"$open_files" -lt "$crit_of" ]
then
echo
"WARNING. Number of open files = $open_files | openfiles=
$open_files"
exit
1;
else
echo
"CRITICAL. Number of open files = $open_files | openfiles=
$open_files"
exit
2;
fi
Script to monitor log file error.
#!/bin/bash
FILE2TAIL=$1
PATTERN=$2
CATCH_UP=0
FPATH=$(dirname
$1)
FFILE=$(basename
$1)
INODE_NUM=$(ls
-i ${FPATH}/${FFILE} | awk '{ print $1 }')
PATTERN_CODE="$(echo
-n "$PATTERN"|tr -d \* | tr -d ' ' | tr -d \. )"
FSIZE_FILE=${FPATH}/.${FFILE}_${PATTERN_CODE}_${INODE_NUM}.size
SIZE_CURRENT=$(ls
-l ${FPATH}/${FFILE} | awk '{ print $5 }')
exit_status=0
last_exit()
{
# save current
size
ls -l
${FPATH}/${FFILE} | awk '{ print $5 }' > ${FSIZE_FILE}
exit
$exit_status
}
if [ ! -f
${FSIZE_FILE} ]; then
# first time,
save line count
echo "saving
initial size of ${FPATH}/${FFILE}"
last_exit
fi
# last size is
available
SIZE_LAST=$(cat
${FSIZE_FILE})
SIZE_DELTA=$(($SIZE_CURRENT
- $SIZE_LAST))
if [
$SIZE_DELTA -gt 0 ]
then
# new bytes to
scan
tail
"-${SIZE_DELTA}c" ${FPATH}/${FFILE} > /tmp/ts$$
egrep
"$PATTERN" /tmp/ts$$ > /tmp/tsF$$
GREP_STATUS=$?
if [
$GREP_STATUS -eq 0 ]
then
# found a match
SUBJECT="Found
$PATTERN in $FILE2TAIL"
BODY="$SUBJECT\n$(cat
/tmp/tsF$$)"
echo "$SUBJECT"
#### exec
#cho -e $BODY #
| $EXEC_ON_MATCH -s "$SUBJECT" $EMAILADDR
echo "CRITICAL.
'Error writing data to the connection' found in ${FFILE} |
error_found=1"
last_exit
fi
if [
$GREP_STATUS -ne 0 ]
then
# found no
matches
SUBJECT="Missing
$PATTERN in $FILE2TAIL on $HOST_NAME"
BODY="$SUBJECT\n"
echo "OK.
'Error writing data to the connection' not found in ${FFILE} |
error_found=0"
last_exit
#### exec
fi
/bin/rm -f
/tmp/ts$$ /tmp/tsF$$
fi
