** 자동 로그아웃 끄기..
export TMOUT=0
** CENTOS 버전 알아 보기
[root@monitoringnew conf]# lsb_release -a
LSB Version: :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 5.11 (Final)
Release: 5.11
Codename: Final
