64 lines
1.3 KiB
Bash
64 lines
1.3 KiB
Bash
#!/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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source /etc/profile
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function init() {
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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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IPTABLES=$(which iptables)
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IPTABLES_SAVE=$(which iptables-save)
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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 -auxwwf &>> ${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 SSH authorization information:" &>> ${LOG_FILE}
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/root/denyhosts/rhost | grep -E "^[0-9]" | awk '{a[$1]+=1;} END {for(i in a){print a[i]" "i;}}' &>> ${LOG_FILE}
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$IPTABLES_SAVE > /root/ipv4tables
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echo "" &>> ${LOG_FILE}
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echo "Iptables filter table" &>> ${LOG_FILE}
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$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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20191008
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20210614
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aixiao@aixiao.me
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