[Linux][CentOS] 유용한 커맨드들..

@ 부팅할때 생기는 로그 확인하기

> dmesg 


@ 시스템 종료하기

> init 0
> shutdown -h -time 0 
> shutdown -r -time 0  (reboot)


@ 환경설정하기

> setup 


@ 네트워크 관리

> cd /etc/sysconfig/network-scripts/

> ifup eth0
> ifdown eth0 
> service network restart 

> cd /etc/sysconfig/network-scripts/

> vi ifcfg-eth0

# Xen Virtual Ethernet

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.167.255

HWADDR=7e:4c:b0:e1:2e:xx

IPADDR=192.168.167.x

NETMASK=255.255.255.0

NETWORK=192.168.167.0

ONBOOT=yes

> cd /etc/sysconfig/

> vi network

GATEWAY=192.168.167.1

@ DNS 세팅 

> vi /etc/resolv.conf

nameserver 4.2.2.1
nameserver 4.2.2.2


@ 부팅할때 실행할 서비스 관리

> ntsysv