iptables日志管理

目的：使系统单独生产iptables的独立日志，并且按每天记录,达到IPtables滚动日志。

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！