63 lines
1.4 KiB
Bash
63 lines
1.4 KiB
Bash
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#!/bin/bash
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#
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# System authorization information.
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# SSH prevents violent cracking
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# Email: aixiao@aixiao.me
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# Time: 20170909
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#
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function init() {
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num=9;
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send_mail=1;
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pwd_path="/root";
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TIME=`date +"%Y%m%d%H%M"`;
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log_file="${pwd_path}/${TIME}.log";
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email_address="1605227279@qq.com";
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}
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function run()
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{
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echo "Read-Only Memory,ROM:" &>> ${log_file}
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df -am &>> ${log_file}
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echo "random access memory，RAM:" &>> ${log_file}
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free -hl &>> ${log_file}
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echo "System process:" &>> ${log_file}
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ps -axjf &>> ${log_file}
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echo "Network Connections" &>> ${log_file}
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netstat -tnulp &>> ${log_file}
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echo "System authorization information:" &>> ${log_file}
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/root/rhost | awk '{a[$1]+=1;} END {for(i in a){print a[i]" "i;}}' &>> ${log_file}
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ip=$(echo $(/root/rhost | awk -v num=${num} '{a[$1]+=1;} END {for(i in a){if (a[i] >= num) {print i;}}}'))
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ip_address=($ip)
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for i in ${ip_address[@]} ; do
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/sbin/iptables -I INPUT -s $i -j DROP
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done
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/sbin/iptables-save > /root/ipv4tables
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echo "" &>> ${log_file}
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echo "Iptables filter table" &>> ${log_file}
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/sbin/iptables -L -n --line-numbers &>> ${log_file}
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echo "" &>> ${log_file}
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if test $send_mail = 1; then
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mail -s "System Log" ${email_address} < ${log_file}
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rm ${log_file}
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fi
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sync
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}
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init;
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run;
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exit 0;
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20190103
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20190911
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aixiao@aixiao.me
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