在許多情況下我們需要判斷客戶端的連接是電信還是網(wǎng)通,或者聯(lián)通移動(dòng),那么,輕松獲取客戶端登錄IP后如何判斷究竟是哪個(gè)運(yùn)營(yíng)上的IP呢,下面腳本可以很輕易的幫您收集這些信息!
運(yùn)行條件: 需要網(wǎng)絡(luò)和 Internet 連通!
#!/bin/sh
#auto get the IP Table
#get the newest delegated-apnic-latest
rm delegated-apnic-latest
if type wget
then wget http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest
else fetch http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest
fi
grep 'apnic|CN|ipv4' delegated-apnic-latest | cut -f 4,5 -d '|' | tr '|' ' ' | while read ip cnt
do
mask=$(bc END | tail -1
pow=32;
define log2(x) {
if (x=1) return (pow);
pow--;
return(log2(x/2));
}
log2($cnt);
END
)
echo $ip/$mask';'>>cnnet
resultext=`whois $ip@whois.apnic.net | grep -e ^netname -e ^descr -e ^role -e ^mnt-by | cut -f 2 -d ':' | sed 's/ *//'`
if echo $resultext | grep -i -e 'railcom' -e 'crtc' -e 'railway'
then echo $ip/$mask';' >> crc
elif echo $resultext | grep -i -e 'cncgroup' -e 'netcom'
then echo $ip/$mask';' >> cnc
fi
if echo $resultext | grep -i -e 'chinanet' -e 'chinatel'
then echo $ip/$mask';' >> telcom_acl
elif echo $resultext | grep -i -e 'unicom'
then echo $ip/$mask';' >> unicom
elif echo $resultext | grep -i -e 'cmnet'
then echo $ip/$mask';' >> cmnet
else
echo $ip/$mask';' >> other_acl
fi
done