[v_blue]脚本使用mutt命令发送邮件,可以替换为mail,使用方法//www.sevenfal.com/2017/11/29/1019.html[/v_blue]
#!/bin/bash ly_ver=1.0.1 date1="2017-12-04 14:09" #curl 检测超时(秒) tcp_timeout=3 #检测出现 3 次状态码不正常后邮件报警 mail_do=3 #故障未恢复再次告警时间(1小时以后) let check_check=60*1 path1=/usr/local/monitor which nc 1> /dev/null 2> /dev/null || yum install nc -y if [ ! -x /usr/bin/monitor ];then cp $0 /usr/bin/monitor chmod +x /usr/bin/monitor fi if $(crontab -l |grep -q '^\* \* \* \* \* /usr/local/monitor/crontab_tcp$') ;then cd . else (crontab -l 2>/dev/null;echo '* * * * * /usr/local/monitor/crontab_tcp') |crontab - fi function ip_add(){ echo "请输入需要添加监控的 ip 或域名(eg. www.sevenfal.com):" read check_ip read -p "请输需要添加监控的端口(eg. 22):" check_port until echo ${check_port} |grep -q "^[[:digit:]]\+$" ;do read -p "请输需要添加监控的端口(eg. 22):" check_port done echo "${check_port} ${check_ip} 0" >> ${path1}/ip_list.txt } function ip_list(){ cat -n ${path1}/ip_list.txt } function ip_del(){ ip_list read -p "请输入需要删除的行号(eg. 2):" del_line until echo ${del_line} |grep -q "^[[:digit:]]\+$" ;do read -p "请输入需要删除的行号(eg. 2):" del_line done sed -i "${del_line}d" ${path1}/ip_list.txt ip_list } function mail_add(){ echo "请输入需要通知的邮箱地址(eg. [email protected]):" read mail_name echo "${mail_name}" >> ${path1}/mail_list.txt } function mail_list(){ cat -n ${path1}/mail_list.txt } function mail_del(){ mail_list read -p "请输入需要删除的行号(eg. 2):" del_line until echo ${del_line} |grep -q "^[[:digit:]]\+$" ;do read -p "请输入需要删除的行号(eg. 2):" del_line done sed -i "${del_line}d" ${path1}/mail_list.txt mail_list } function monitor_check(){ mkdir -p ${path1} if [ ! -f ${path1}/ip_list.txt ];then touch ${path1}/ip_list.txt fi if [ ! -f ${path1}/mail_list.txt ];then touch ${path1}/mail_list.txt fi rm -rf ${path1}/crontab_tcp echo '#!/bin/bash' > ${path1}/crontab_tcp echo 'path1=/usr/local/monitor' >> ${path1}/crontab_tcp echo "tcp_timeout=${tcp_timeout}" >> ${path1}/crontab_tcp echo "check_check=${check_check}" >> ${path1}/crontab_tcp echo "mail_do=${mail_do}" >> ${path1}/crontab_tcp cat <<"EOF" >> ${path1}/crontab_tcp cat -n ${path1}/ip_list.txt | while read val;do ip_num=`echo $val|awk -F ' ' '{print $1}'` check_port=`echo $val|awk -F ' ' '{print $2}'` check_ip=`echo $val|awk -F ' ' '{print $3}'` check_num=`echo $val|awk -F ' ' '{print $4}'` time1=`date "+%Y-%m-%d %H:%M:%S"` nc -z -w ${tcp_timeout} ${check_ip} ${check_port} && ( sed -i "${ip_num} a${check_port} ${check_ip} 0" ${path1}/ip_list.txt sed -i "${ip_num}d" ${path1}/ip_list.txt if (( ${check_num} > ${mail_do} )) then for mail_name in `cat ${path1}/mail_list.txt`;do echo "解除时间:${time1} <br>故障地址:${check_ip}:${check_port} <br> 当前状态:<span style='color:green'>正常</span> <br>" | mutt -s "故障解除:${check_ip}:${check_port} 端口正常!" -e 'set content_type="text/html"' ${mail_name} done fi ) || ( let check_num=${check_num}+1 sed -i "${ip_num} a${check_port} ${check_ip} ${check_num}" ${path1}/ip_list.txt sed -i "${ip_num}d" ${path1}/ip_list.txt if [[ ${check_num} = ${mail_do} || ${check_num} = ${check_check} ]] then for mail_name in `cat ${path1}/mail_list.txt`;do echo "故障时间:${time1} <br>故障地址:${check_ip}:${check_port} <br> 当前状态:<span style='color:red'>错误</span> <br>" | mutt -s "故障出现:${check_ip}:${check_port} 端口不可达!" -e 'set content_type="text/html"' ${mail_name} done fi ) done EOF chmod +x ${path1}/crontab_tcp } echo "+-------------------------------------------+" echo "| Monitor for tcp port ${ly_ver} |" echo "+-------------------------------------------+" echo "| ${date1} |" echo "+-------------------------------------------+" arg1=$1 arg2=$2 monitor_check case ${arg1} in add) if [ "${arg2}" = "ip" ];then ip_add elif [ "${arg2}" = "mail" ];then mail_add else echo "Usage: monitor add {ip|mail}" fi ;; list) if [ "${arg2}" = "ip" ];then ip_list elif [ "${arg2}" = "mail" ];then mail_list else echo "Usage: monitor list {ip|mail}" fi ;; del) if [ "${arg2}" = "ip" ];then ip_del elif [ "${arg2}" = "mail" ];then mail_del else echo "Usage: monitor del {ip|mail}" fi ;; *) echo "Usage: monitor {add|list|del} {ip|mail}" ;; esac
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