1,查软件

rpm -qa|egrep "sudo|rsyslog"

2,编辑sudoers

echo "Defaults logfile=/var/log/sudo.log">>/etc/sudoers

tail -1 /etc/sudoers

visudo -c

3,编辑rsyslog并重启服务

[root@lnmp ~]# tail -1 /etc/rsyslog.conf

local2.debug /var/log/sudo.log

etc/init.d/rsyslog restart

 

4,检验

[root@lnmp ~]# tail -f /var/log/sudo.log

Jul 24 01:08:50 : lanny : TTY=pts/1 ; PWD=/home/lanny ; USER=root ;

COMMAND=/bin/su -

[lanny@lnmp ~]$ sudo echo "kaifa01 ALL=(ALL) NOPASSWD:ALL">>/etc/sudoers

-bash: /etc/sudoers: Permission denied

 

5,原理 

sudoers------>local2.debug(设备)----->rsyslog写到文件

6,集中日志处理方案

6.1inotify+rsync

6.2rsyslog自带