iptables日志维护

iptables日志维护

 

一、配置syslogd的配置文件/etc/syslog.conf

在文件syslog.conf里添加如下内容

# Iptables logging

kern.debug /var/log/iptables

 

二、使用IPtables滚动日志

先查看并确定logrotate的配置文件/etc/logrotate.conf内容如下：

# see "man logrotate" for details 

# rotate log files weekly weekly 

# keep 4 weeks worth of backlogs rotate 4 

# create new (empty) log files after rotating old ones create 

# uncomment this if you want your log files compressed 

#compress 

# RPM packages drop log rotation information into this directory include /etc/logrotate.d 

# no packages own wtmp -- we'll rotate them here /var/log/wtmp { monthly create 0664 root utmp rotate 1 }

# system-specific logs may be also be configured here.

 

然后在syslog的滚动日志配置文件/etc/logrotate.d/syslog里面添加IPtables的日志文件/var/log/iptables，详细内容如下：

/var/log/iptables /var/log/messages /var/log/secure /var/log/maillog /var/log/spooler /var/log/boot.log /var/log/cron {

    sharedscripts

    postrotate

    /bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null || true

    endscript

}

 

最后安排logrotate每天执行一次，确定文件/etc/cron.daily/logrotate内容如下：

#!/bin/sh

 

/usr/sbin/logrotate /etc/logrotate.conf

EXITVALUE=$?

if [ $EXITVALUE != 0 ]; then

    /usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"

fi

exit 0

到此就完成了！