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  • Linux网络实时监控配置

    Linux监控邮件发送配置

    网络状态监控

     网络状态:netstat 各个状态的总计,详情;以及重点端口的详细连接情况(22,25,80,3306,8080),打印客户端连接数最多的ip。

    邮件报告当前状态。

    对于每个端口的连接数,自己可以设置阈值,加个if判断就可以完成报检的功能。

    在手机上安装网易的邮件客户端,就可以达到实时提醒的效果。

    关于mail的配置,见文章:http://blog.csdn.net/rookie_ceo/article/details/46559195

    #!/bin/sh
    source /etc/profile
     
     
    IP=`/sbin/ifconfig|sed -n '/inet addr/s/^[^:]*:([0-9.]{7,15}) .*/1/p'|grep -v '127.0.0.1'`
    warn_pct=1 #75
    warn_name=[NET-State]
    performance_path=/monitor/performance
    mailtmp=/u01/soft/smonitor/mailtmplet/"$warn_name"tmp.mail
    infotmp=/u01/soft/smonitor/mailtmplet/"$warn_name"tmp.tmp
    maillist=490073687@qq.com,zhou.xiangxing210@163.com 
     
    DT=`date +"%Y-%m-%d %H:%M:%S"`
    netstat -nap > $infotmp
    cat $infotmp|grep '^tcp' >  $infotmp.tmp
     
    stat_help="
    -----------------------------Stat Mean-------------------------------"
    stat_help="$stat_help""
     LISTEN:Listening for a connection.侦听来自远方的TCP端口的连接请求"
    stat_help="$stat_help""
    
     SYN-SENT:Active; sent SYN. Waiting for a matching connection request after having sent a connection request."
    stat_help="$stat_help""
     再发送连接请求后等待匹配的连接请求."
    stat_help="$stat_help""
    
     SYN-RECEIVED:Sent and received SYN. Waiting for a confirming connection request acknowledgment "
    stat_help="$stat_help""
     after having both received and sent connection requests.再收到和发送一个连接请求后等待对方对连接请求的确认"
    stat_help="$stat_help""
    
     ESTABLISHED:Connection established.代表一个打开的连接"
    stat_help="$stat_help""
    
     FIN-WAIT-1:Closed; sent FIN.等待远程TCP连接中断请求,或先前的连接中断请求的确认"
    stat_help="$stat_help""
    
     FIN-WAIT-2:Closed; FIN is acknowledged; awaiting FIN.从远程TCP等待连接中断请求"
    stat_help="$stat_help""
    
     CLOSE-WAIT:Received FIN; waiting to receive CLOSE.等待从本地用户发来的连接中断请求"
    stat_help="$stat_help""
    
     CLOSING:Closed; exchanged FIN; waiting for FIN.等待远程TCP对连接中断的确认"
    stat_help="$stat_help""
    
     LAST-ACK:Received FIN and CLOSE; waiting for FIN ACK.等待原来的发向远程TCP的连接中断请求的确认"
    stat_help="$stat_help""
    
     TIME-WAIT:In 2 MSL (twice the maximum segment length) quiet wait after close. 等待足够的时间以确保远程TCP接收到连接中断请求的确认"
    stat_help="$stat_help""
    
     CLOSED:Connection is closed.没有任何连接状态"
    stat_help="$stat_help""
    ------------------------------------------------------------"
     
     
    echo "您好:" >$mailtmp
    echo -e "     [$DT]服务器:$IP 网络连接信息如下。
    总计:" >>$mailtmp
    cat $infotmp.tmp|awk '{print $6}'|sort |uniq -c|sort >>$mailtmp
    echo "[$DT]详细:">>$mailtmp
    cat $infotmp.tmp|awk '{print $7"        "$6 }'|sort |uniq -c |sort >>$mailtmp
    echo "------------------------------------------------------------" >>$mailtmp
     
     
    #mysql连接数 3306
    cat  $infotmp.tmp|grep 3306 |grep mysqld|grep -v LISTEN > $infotmp.tmp.3306
    mysql_conn=`cat  $infotmp.tmp.3306|wc -l`
    echo "mysql 3306端口连接数:$mysql_conn" >>$mailtmp
    echo "mysql 3306端口每个ip连接数统计如下:" >>$mailtmp
    cat $infotmp.tmp.3306|awk '{print $5}'|awk -F ':' '{print $4}'|sort |uniq -c|sort >>$mailtmp
    echo "------------------------------------------------------------">>$mailtmp
     
    #ssh连接数 22
    cat  $infotmp.tmp|grep 22 |grep sshd|grep -v LISTEN > $infotmp.tmp.22
    ssh_conn=`cat  $infotmp.tmp.22|wc -l`
    echo "ssh 22端口连接数:$ssh_conn" >>$mailtmp
    echo "ssh 22端口每个ip连接数统计如下:" >>$mailtmp
    cat $infotmp.tmp.22|awk '{print $5}'|awk -F ':' '{print $1}'|sort |uniq -c|sort >>$mailtmp
    echo "------------------------------------------------------------" >>$mailtmp
     
    #httpd连接数 80
    cat  $infotmp.tmp|grep 80 |grep httpd|grep -v LISTEN > $infotmp.tmp.80
    httpd_conn=`cat  $infotmp.tmp.80|wc -l`
    echo "http 80端口连接数:$httpd_conn" >>$mailtmp
    echo "http 80端口每个ip连接数统计如下:" >>$mailtmp
    cat $infotmp.tmp.80|awk '{print $5}'|awk -F ':' '{print $4}'|sort |uniq -c|sort >>$mailtmp
    echo "------------------------------------------------------------" >>$mailtmp
     
    #ssh连接数 8080
    cat  $infotmp.tmp|grep 8080 |grep java|grep -v LISTEN > $infotmp.tmp.8080
    apache_conn=`cat  $infotmp.tmp.8080|wc -l`
    echo "tomcat 8080端口连接数:$apache_conn" >>$mailtmp
    echo "tomcat 8080端口每个ip连接数统计如下:" >>$mailtmp
    cat $infotmp.tmp.8080|awk '{print $5}'|awk -F ':' '{print $4}'|sort |uniq -c|sort >>$mailtmp
    echo "------------------------------------------------------------" >>$mailtmp
     
    echo -e "$stat_help">>$mailtmp
     
     
    DT=`date +"%Y-%m-%d %H:%M:%S"`
    echo -e "
    Best Wishes! 
    ------------------------------------ 
    CA system Monitor 
    $DT" >> $mailtmp
     
    cat $mailtmp
    #cat $mailtmp| mailx -s "$warn_name[网络监测]:服务器:$IP" $maillist
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  • 原文地址:https://www.cnblogs.com/tietazhan/p/9679617.html
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