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   »úÆ÷ÓõçÐÅÁªÍ¨Ë«ÍøÂ磬¼ÈÈ»µçÐÅip±»·â£¬ÄǾÍÓÃÁªÍ¨µÄip½øÈë»úÆ÷.
ÒªËØÒ»£º»úÆ÷µÄÓ²¼þÐÅÏ¢ÒÔ¼°IpÐÅϢƽʱһ¶¨Òª±£¹ÜºÃ.ÃâµÃÓÐÎÊÌâÁË»¹ÒªÈ¥ÎÊ»ú·¿£¬°×°×À˷Ѻܶàʱ¼ä.
½øÈë»úÆ÷ºótopµÈ·¢ÏÖ»úÆ÷Ó²¼þÐÔÄÜok£¬ÔÙÓÃiptraf£¬Á÷Á¿Ò²²»¸ß£¨µ±È»²»¸ß£¬Ö÷ip¶¼±»ÇÐÁË£©.
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ÒªËضþ£ºÕÒµ½ÈÕÖ¾ÎļþÕÒµ½¹¥»÷ip,Ç°ÃæΪ·ÃÎÊÊýÁ¿£¬ºóÃæΪ·ÃÎÊip
[root@localhost logs]# awk '{print $1}' xxx.xxx.com.access.log-20160616| sort | uniq -c | sort -n -k 1 -r | head -n 20
  91653 106.185.53.124
  59492 113.116.56.80
  56556 106.186.18.224
  48629 106.187.45.172
  26962 103.61.136.93
  22825 191.101.1.49
  21068 103.61.136.168
   8947 207.46.13.2
   7508 157.55.39.95
   6392 40.77.¶¶ÒôuÅÌÊÇʲôÒâ˼167.49
   3673 62.210.247.93
   2827 46.4.94.226
   2670 207.46.13.1
   2576 58.60.220.128
   2402 61.143.205.246
   2035 157.55.39.80
   2029 45.33.44.22
   1953 157.55.39.105
   1872 157.55.39.242
   1862 183.8.3.47
ÕâÊÇÎÒµÚÒ»´ÎÏëµ½µÄÃüÁÆäʵÔÚÍøÕ¾·ÃÎÊÈÕÖ¾ÀïÃæÓ¦¸Ã¹ýÂ˵ô¸÷ÖÖÖ©ÖëÅÀ³æ²Å¶Ô£¬·â´íÁË£¬ÀÏ°å»á¸úÄã¼±ÑÛ.ËùÒÔ£¬ÕýÈ·µÄÃüÁîÓ¦¸ÃÊÇ£º
[root@localhost logs]# cat xxx.xxx.com.access.log-20160616|grep -i -v -E "bing|baidu|google|sougou"|awk '{print $1}'|sort | uniq -c | sort -n -k 1 -r | head -n 20
  91653 106.185.53.124
  59492 113.116.56.80
  56556 106.186.18.224
  48629 106.187.45.172
  26962 103.61.136.93
  22825 191.101.1.49
&»ªË¶±Ê¼Ç±¾ÓÃuÅÌװϵͳnbsp; 21068 103.61.136.168
   3661 62.210.247.93
   2814 46.4.94.226
   2576 58.60.220.128
   2402 61.143.205.246
   2029 45.33.44.22
   1862 183.8.3.47
   1300 103.61.136.164
   1066 218.6.71.194
    880 14.125.142.195
    683 61.158.163.117
    682 61.158.180.226
    680 218.29.54.198
    678 118.212.147.71
°ÑÇ°¼¸¸öip²éѯ£¬¶¼ÊÇÈÕ±¾£¬Ì¨Í壬µÂ¹ú.ÔÙÅäºÏ·ÃÎÊÈÕÖ¾£¬µÃÖªÊÇcc¹¥»÷.
ÏÈ°ÑÕ⼸¸öIpÓÃiptables·âµô.ÊäÈë·âɱÄÚÈÝ£¬ÖØÆôiptables.
[root@localhost logs]# vim /etc/sysconfig/iptables
-A INPUT -s 106.185.53.124  -p tcp -m state --state NEW -j DROP
[root@localhost logs]# service iptables restart
ʹÓÃiptables²é¿´¾Í¿ÉÒÔ¿´µ½uÅÌÕÒ²»µ½Ó²ÅÌ£¬ºÜ¶àÁ÷Á¿°ü±»¶ªÆú;
[root@localhost logs]# iptables -nvL
Chain INPUT (policy ACCEPT 4045K packets, 604M bytes)
 pkts bytes target     prot opt in     out     source               destination        
    0     0 DROP       tcp  --  *      *       103.61.136.167       0.0.0.0/0           state NEW
 382K   18M DROP       tcp  --  *      *       106.186.18.85        0.0.0.0/0           state NEW
   97  4920 DROP       tcp  --  *      *       183.8.3.47           0.0.0.0/0           state NEW
 380K   18M DROP       tcp  --  *      *       106.187.45.172       0.0.0.0/0           state NEW
  300 15204 DROP       tcp  --  *      *       46.4.94.226          0.0.0.0/0           state NEW
Õâ¸öʱºò»ú·¿ÄDZßÒ²½â·âÁ˵çÐÅIp.¹Û²ìÒ»¶Îʱ¼ä£¬Á÷Á¿Õý³£.
ʺó£¬Ñо¿Ð´¹ý½Å±¾£¬°Ñ·ÃÎÊÁ¿Òì³£µÄip»ñÈ¡È»ºó·ÅÔÚÒ»¸öÎļþÀïÃ棬ʹÓÃiptbales·âɱ.
[root@localhost logs]# cat /sbin/cc.sh
#!/bin/sh
LOG_FILE=/usr/local/nginx/logs/xxx.xxx.com.access.log   #·ÃÎÊÈÕÖ¾

IP_FILE=/etc/black       #´æ·ÅÐèÒª½ûÖ¹µÄipÎļþ
NUMBER=2000              #·Ç·¨·ÃÎÊÁ¿µÄÖµ
wan0=eth0                #Íø¿¨
BACKIP=`cat $IP_FILE`   #ÿ´Î²Ù×÷ÏÈÇå¿Õ֮ǰµÄip
`cat /dev/null > $IP_FILE`
Denyip=`cat $LOG_FILE|grep -i -v -E "bing|baidu|google|sougou"|awk '{print $1}'|sort | uniq -c | sort -n -k 1 -r | head -n 1000000|awk '{if($1>'$NUMBER')print $2}'`
echo $Denyip > $IP_FILE
if [ "$BACKIP" !="" ];then
        for X in $BACKIP
        do
                echo $X ---deny
                iptables -A INPUT -i $wan0 -s $X -p all -j DROP
        done
fi
Çå¿Õ¹æÔòºÜ¼òµ¥£¬ÒòΪûÓаѹæÔò±£´æ£¬ËùÒÔÖ»ÒªÓÃ

[root@localhost logs]# service iptables restart
¾Í¿ÉÒÔ°Ñiptbales¹æÔò»Ö¸´.
·´Ë¼£º1.ʹÓÃnetstat°Ñ·Ç·¨ipÁгö
           2.²»±éÀúÕû¸öÈÕÖ¾£¬ÓêÁÖľ·çwin7Æì½¢°æuÅÌ°²×°½Ì³Ì£¬¼ÙÉ赱ǰ±»¹¥»÷£¬Áгö1СʱÄÚ·ÃÎÊÒì³£µÄIp²¢·âɱ.
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