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用 Logwatch 工具查看 Linux 系统 Log 日志

logwatch 是用perl写的一款方便小巧的日志查看工具,可以每天给你发一封格化后的系统信息邮件; 包含crontab运行中的脚本、ssh登录及失败用户ip、su及sudo用户、磁盘空间及邮件等情况… 一般系统中都默认安装它,只需简单配置下就可运行.

http://www.logwatch.org/ 目前最新版为logwatch-7.4.0,logwatch-7.3.6 centos里yum装的为logwatch-7.3.6

安装 rpm -Ivh logwatch.rpm 升级 rpm -Uvh logwatch.rpm yum安装升级 yum -y install logwatch

#复制配置文件 cp -af /usr/share/logwatch/default.conf/logwatch.conf /etc/logwatch/conf/logwatch.conf #打开每日邮件报告 sed -i ‘s/# DailyReport = No/DailyReport = Yes/’ /etc/logwatch/conf/logwatch.conf #修改邮件mta,如果是本机sendmail或postfix不不需修改,这个用的是mailx的远程smtp sed -i ‘s/mailer = “sendmail -t”/mailer = “mail -t”/’ /etc/logwatch/conf/logwatch.conf #报告的细节程度 sed -i ‘s/Detail = Low/Detail = High/’ /etc/logwatch/conf/logwatch.conf #邮件发给谁 sed -i “s/MailTo = root/MailTo = root,[email protected]/” /etc/logwatch/conf/logwatch.conf

logwatch默认每天执行一次,可以从/etc/cron.daily里看到 ll /etc/cron.daily/

total 28 -rwxr-xr-x 1 root root 265 Jun 25 2011 0logwatch

红帽as4系统中配置文件位于/etc/log.d/logwatch.conf

2012-11-09更新 注:由于系统日志中不记录年份,日志量过少没有轮换会产生误报的情况. 今年读取了去年的日志来报告.

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