denyhosts/mail.log.sh

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2017-11-25 19:36:42 +08:00
#!/bin/bash
#
# Debian Stretch.
# System authorization information.
# Author: aixiao
# Email: aixiao@aixiao.me
# Date: 20170909
# Modify Time: 171125
#
pwd_path=/root
TIME=`date +"%Y%m%d"`
log_file=${pwd_path}/${TIME}.log
echo "Read-Only Memory,ROM:" &>> ${log_file}
df -am &>> ${log_file}
echo "" &>> ${log_file}
echo "random access memoryRAM:" &>> ${log_file}
free -hl &>> ${log_file}
echo "" &>> ${log_file}
echo "System process:" &>> ${log_file}
ps -axjf &>> ${log_file}
echo "" &>> ${log_file}
echo "Network Connections" &>> ${log_file}
netstat -tnulp &>> ${log_file}
echo "" &>> ${log_file}
echo "AIC" &>> ${log_file}
netstat -ntu &>> ${log_file}
echo "" &>> ${log_file}
echo "System authorization information:" &>> ${log_file}
if test "`date | awk '{print $3}'`" -ge 10 ; then
grep ^`date | awk '{print $2}'`.`date | awk '{print $3}'` /var/log/auth.log &>> ${log_file}
grep -E "^`date | awk '{print $2}'`.`date | awk '{print $3}'`" /var/log/auth.log | grep failure | grep rhost | awk '{printf $14 "\n"}' | cut -d = -f 2 | awk '{a[$1]+=1;} END {for(i in a){print a[i]" "i;}}' &>> ${log_file}
ip=$(grep -E "^`date | awk '{print $2}'`.`date | awk '{print $3}'`" /var/log/auth.log | grep failure | grep rhost | awk '{printf $14 "\n"}' | cut -d = -f 2 | awk '{a[$1]+=1;} END {for(i in a){if (a[i] >= 9) {print i;}}}')
else
grep ^`date | awk '{print $2}'`..`date | awk '{print $3}'` /var/log/auth.log &>> ${log_file}
grep -E "^`date | awk '{print $2}'`..`date | awk '{print $3}'`" /var/log/auth.log | grep failure | grep rhost | awk '{printf $14 "\n"}' | cut -d = -f 2 | awk '{a[$1]+=1;} END {for(i in a){print a[i]" "i;}}' &>> ${log_file}
ip=$(grep -E "^`date | awk '{print $2}'`..`date | awk '{print $3}'`" /var/log/auth.log | grep failure | grep rhost | awk '{printf $14 "\n"}' | cut -d = -f 2 | awk '{a[$1]+=1;} END {for(i in a){if (a[i] >= 9) {print i;}}}')
fi
ip_add=($ip)
for i in ${ip_add[@]} ; do
/sbin/iptables -I INPUT -s $i -j DROP
done
/sbin/iptables-save > /root/ipv4tables
echo "" &>> ${log_file}
echo "Iptables filter table" &>> ${log_file}
/sbin/iptables -L -n --line-numbers &>> ${log_file}
echo "" &>> ${log_file}
mail -s "System Log" 1605227279@qq.com < ${log_file}
rm ${log_file}
sync
sync
exit
aixiao@aixiao.me