1、安装方式
wget http://10.8.225.126/wsmonitor/install.sh;sh install.sh test@test.com
2、install.sh
#!/bin/sh
if [ $# -ne ]; then
echo "########################################################"
echo "# 用法：sh install_monitor.sh 邮箱地址; #"
echo "# 如：sh install_monitor.sh chenjy@wangsu.com #"
echo "# 若邮箱地址多个用英文逗号分隔 #"
echo "########################################################"
exit
fi
#对应目录放开权限，安装sendmail
/usr/bin/chattr -i /etc/shadow /etc/passwd /etc/gshadow /etc/group /etc/group-
mkdir /var/spool/clientmqueue;chmod /var/spool/clientmqueue for i in `seq `
do
echo $i
rpm -q --quiet sendmail
if [ $? == ]; then
yum install -y sendmail
if [ $? == ]; then
echo "######ERROR!sendmail install fail!######"
echo "######Please try [yum install -y sendmail]######"
exit
fi
fi
rpm -q --quiet sendmail
if [ $? == ]; then
service sendmail restart
if [ $? == ]; then
echo "######ERROR!sendmail start fail!######"
echo "######Please try [service sendmail restart]######"
exit
fi
chkconfig --add sendmail
break
fi
done
#下载监控脚本及启动后台执行
current=`date "+%Y-%m-%d %H:%M:%S"`
timestamp=`date -d "$current" +%s`
mkdir -p /usr/local/wsmonitor
mkdir -p /usr/local/wsmonitor/bak
for i in `seq `
do
echo $i
# if [ -f wsmonitor.sh ];then
# mv /usr/local/wsmonitor/wsmonitor.sh /usr/local/wsmonitor/bak/wsmonitor.sh.$timestamp
# fi wget http://10.8.225.126/wsmonitor/wsmonitor.sh -O /usr/local/wsmonitor/wsmonitor.sh
wget http://10.8.225.126/wsmonitor/wsmonitor -O /etc/init.d/wsmonitor
wget http://10.8.225.126/wsmonitor/ReadMe_wsmonitor.txt -O /usr/local/wsmonitor/ReadMe_wsmonitor.txt
#替换监控脚本中的邮箱地址
sed -i 's/MAILTO=chenjy@wangsu.com/MAILTO='$'/g' /usr/local/wsmonitor/wsmonitor.sh
#启动服务
chmod +x /etc/init.d/wsmonitor
service wsmonitor restart
echo "#################################################################"
echo "#####Install wsmonitor success! #####"
echo "#################################################################"
echo "#####If you want to change mailaddress,edit [/usr/local/wsmonitor/wsmonitor.sh]! #####"
echo "#####Please use [service wsmonitor start/stop/restart] #####"
echo "使用说明见：/usr/local/wsmonitor/ReadMe_wsmonitor.txt"
exit
done
3、wsmontor.sh
#!/bin/bash
ntpdate cn.pool.ntp.org
#配置多个收件人用英文逗号隔开
#MAILTO=cc@wangsu.com,qinjy@wangsu.com
#MAILTO=cc@wangsu.com
MAILTO=chenjy@wangsu.com,yuzt@wangsu.com
#、监控间隔时间，单位（秒）
TIME_INTERVAL=
#、内存使用率，单位 （%）
MEM_RATE=
#、流量监控设置
#要监控的网卡
ETH_NAME=eth0
#上行下行流量,单位（MB)
FLOWIN_MB=
FLOWOUT_MB=
#、TCP连接状态数量,连接的最大个数
TIME_WAIT=
ESTABLISHED=
#、CPU使用率,大于该值发送告警，单位（%）
CPU_RATE=
#、硬盘占用率，单位（%）
DISK_RATE= ############################################################
################！以下脚本内容不需要修改！！################
############################################################ #检测是否加入crontab
#username=`users|awk '{print $1}'`
#crontab_path=/var/spool/cron/$username
#script_path=`pwd`
#ifexist=`crontab -l|grep wsmonitor_keepalive.sh|wc -l`
#ifexist_mail=`crontab -l|grep wsmonitor_keepalive.sh|grep $MAILTO|wc -l`
#if [ $ifexist -eq 0 ];then
# echo "1 * * * * sh $script_path/wsmonitor_keepalive.sh $MAILTO > /dev/null 2>&1" >>$crontab_path
#elif [[ $ifexist -eq 1 && $ifexist_mail -eq 0 ]];then
# sed -i '/wsmonitor_keepalive.sh/d' $crontab_path
# echo "1 * * * * sh $script_path/wsmonitor_keepalive.sh $MAILTO > /dev/null 2>&1" >>$crontab_path
#fi while [ ]
do
#获取本机IP
SERVER_IP=`ifconfig -a|grep inet|grep -v 127.0.0.1|grep -v inet6|awk '{print $2}'|tr -d "addr:"`
#定义发送邮件的内容
MAILSUBJECT="WARNING_[$SERVER_IP]"
MAILFROM="wsmonitor_test@wangsu.com"
function do_sendmail()
{
sendmail -t <<EOF
from:wsmonitor <$MAILFROM>
to:$MAILTO
subject:[$]_$MAILSUBJECT
Content-Type: text/html;charset=utf-
<html>
<body>
$time $1当前监控记录值为：$，大于设置的阈值：$，详情登陆系统查看[$SERVER_IP]。当天同一资源超过阈值只告警一次。<br />
备注：请勿回复此邮件！
</body></html>
EOF
} # 监 控 脚 本 执 行 内 容
################################################################################
mkdir -p /usr/local/wsmonitor/log
date=`date +"%Y%m%d"`
time=`date +"%Y-%m-%d %H:%M:%S"`
LOG_PATH=/usr/local/wsmonitor/log/monitor_$date.log
##################################################################
####、为CPU使用率计算先记录日志1#################################
####、为FLOW计算先获取flowin和flowout############################
##################################################################
cpulog_1=$(cat /proc/stat | grep 'cpu ' | awk '{print $2" "$3" "$4" "$5" "$6" "$7" "$8}')
flowin_old=$(cat /proc/net/dev|grep -w $ETH_NAME|sed -e "s/\(.*\)\:\(.*\)/\2/g" |awk '{ print $1 }')
flowout_old=$(cat /proc/net/dev|grep -w $ETH_NAME|sed -e "s/\(.*\)\:\(.*\)/\2/g" |awk '{ print $9 }') #监控周期
sleep $TIME_INTERVAL ##################################################################
###########################内存监控部分###########################
##################################################################
#对于应用程序来说，buffers/caches是未被使用的，对应-/+ buffers/cache那一行
memuse=`free -m|grep "buffers/cache"|awk '{print $3}'`
memtotal=`free -m|grep "Mem"|awk '{print $2}'`
MEM_NOW=`echo "$memuse/$memtotal*100"|bc -l|cut -d. -f1`
MEM_TAG=`echo "$MEM_NOW $MEM_RATE"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time MEM $MEM_NOW $MEM_RATE $MEM_TAG">>$LOG_PATH #DISK:df -lh查看磁盘使用率，获取最大值
disk_log=/tmp/disk_tmp.log
df -lh|grep -v Filesystem|awk '{print $5}' > $disk_log
DISK_NOW=`cat $disk_log |awk 'BEGIN{max=0}{if($1+0>max+0) max=$1 fi} END {print max}'|cut -d% -f1`
DISK_TAG=`echo "$DISK_NOW $DISK_RATE"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time DISK $DISK_NOW $DISK_RATE $DISK_TAG">>$LOG_PATH
###################################################################
#####连接数:只获取ESTABLISHED和TIME_WAIT状态的tcp连接数############
###################################################################
tcpconn_log=/tmp/tcpconn.log
netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}' >$tcpconn_log #注意连接数为0的情况
grep ESTABLISHED $tcpconn_log > /dev/null
if [ $? -eq ] ; then
echo "ESTABLISHED 0 " >>$tcpconn_log
fi
ESTABLISHED_NOW=`grep ESTABLISHED $tcpconn_log|awk '{print $2}'`
ESTABLISHED_TAG=`echo "$ESTABLISHED_NOW $ESTABLISHED"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time ESTABLISHED $ESTABLISHED_NOW $ESTABLISHED $ESTABLISHED_TAG">>$LOG_PATH grep TIME_WAIT $tcpconn_log > /dev/null
if [ $? -eq ] ; then
echo "TIME_WAIT 0 " >>$tcpconn_log
fi
TIME_WAIT_NOW=`grep TIME_WAIT $tcpconn_log|awk '{print $2}'`
TIME_WAIT_TAG=`echo "$TIME_WAIT_NOW $TIME_WAIT"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time TIME_WAIT $TIME_WAIT_NOW $TIME_WAIT $TIME_WAIT_TAG">>$LOG_PATH ##################################################################
######################### 流量 ###################################
##################################################################
flowin=$(cat /proc/net/dev|grep -w $ETH_NAME|sed -e "s/\(.*\)\:\(.*\)/\2/g"|awk '{ print $1 }')
flowout=$(cat /proc/net/dev|grep -w $ETH_NAME|sed -e "s/\(.*\)\:\(.*\)/\2/g"|awk '{ print $9 }')
FLOWIN=$((($flowin-$flowin_old)/$TIME_INTERVAL))
FLOWOUT=$((($flowout-$flowout_old)/$TIME_INTERVAL))
#echo "Recv rate: $((${FLOWIN}/1024)) KB/s Sent rate: $((${FLOWOUT}/1024)) KB/s "
flowin_old=${flowin}
flowout_old=${flowout}
#转换单位为MB
FLOWIN_MB_NOW=$(((${FLOWIN}/)/))
FLOWOUT_MB_NOW=$(((${FLOWOUT}/)/))
FLOWIN_MB_TAG=`echo "$FLOWIN_MB_NOW $FLOWIN_MB"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
FLOWOUT_MB_TAG=`echo "$FLOWOUT_MB_NOW $FLOWOUT_MB"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time FLOWIN_MB $FLOWIN_MB_NOW $FLOWIN_MB $FLOWIN_MB_TAG">>$LOG_PATH
echo "$time FLOWOUT_MB $FLOWOUT_MB_NOW $FLOWOUT_MB $FLOWOUT_MB_TAG">>$LOG_PATH
#转换单位为KB
FLOWIN_KB_NOW=$((${FLOWIN}/))
FLOWOUT_KB_NOW=$((${FLOWOUT}/))
FLOWIN_KB_TAG=`echo "$FLOWIN_KB_NOW $((${FLOWIN_MB}*1024))"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
FLOWOUT_KB_TAG=`echo "$FLOWOUT_KB_NOW $((${FLOWOUT_MB}*1024))"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time FLOWIN_KB $FLOWIN_KB_NOW $((${FLOWIN_MB}*1024)) $FLOWIN_KB_TAG">>$LOG_PATH
echo "$time FLOWOUT_KB $FLOWOUT_KB_NOW $((${FLOWOUT_MB}*1024)) $FLOWOUT_KB_TAG">>$LOG_PATH ##################################################################
######################CPU 通过/proc/stat计算######################
##################################################################
sys_idle_1=$(echo $cpulog_1 | awk '{print $4}')
total_1=$(echo $cpulog_1 | awk '{print $1+$2+$3+$4+$5+$6+$7}') cpulog_2=$(cat /proc/stat | grep 'cpu ' | awk '{print $2" "$3" "$4" "$5" "$6" "$7" "$8}')
sys_idle_2=$(echo $cpulog_2 | awk '{print $4}')
total_2=$(echo $cpulog_2 | awk '{print $1+$2+$3+$4+$5+$6+$7}') sys_idle=`expr $sys_idle_2 - $sys_idle_1`
total=`expr $total_2 - $total_1`
CPU_NOW=`echo "100-$sys_idle/$total*100"|bc -l|cut -d. -f1`
if [ $total -eq ] ;then
CPU_NOW=
elif [ ! -n "$CPU_NOW" ];then
CPU_NOW=
fi
CPU_TAG=`echo "$CPU_NOW $CPU_RATE"|awk '{tag=0;if($1>$2){tag=1} print tag}'`
echo "$time CPU $CPU_NOW $CPU_RATE $CPU_TAG">>$LOG_PATH ######################################################################################## #检查日志中是否有超过阈值的记录
function check_ifoverload()
{
all_count=`grep $ $LOG_PATH|awk '{if($6==1) print $0}'|wc -l`
latest_count=`tail -n $ $LOG_PATH|grep $|awk '{if($6==1) print $0}'|wc -l`
if [[ $all_count -eq && $latest_count -eq ]];then
do_sendmail $ $ $
fi
}
check_item=
check_ifoverload MEM $check_item $MEM_NOW'%' $MEM_RATE'%'
check_ifoverload CPU $check_item $CPU_NOW'%' $CPU_RATE'%'
check_ifoverload DISK $check_item $DISK_NOW'%' $DISK_RATE'%'
check_ifoverload ESTABLISHED $check_item $ESTABLISHED_NOW $ESTABLISHED
check_ifoverload TIME_WAIT $check_item $TIME_WAIT_NOW $TIME_WAIT
check_ifoverload FLOWIN_MB $check_item $FLOWIN_MB_NOW $FLOWIN_MB
check_ifoverload FLOWOUT_MB $check_item $FLOWOUT_MB_NOW $FLOWOUT_MB done