(date , clock ) 시간 맞추기.

Posted by 주원이^^
2011. 2. 18. 10:37 리눅스/기본정보(OS)

리눅스를 처음설치 하였을경우 젤 먼저 해야할일은 다른것도 아닌 시간 맞추기 라고 생각합니다.
정확한 시간이 맞지않을경우엔 설치가 제대로 안되는 경우도 많기 때문 입니다.

[root@localhost /]# date
2011. 02. 17. (목) 17:48:14 KST

로 확인해주고 맞으면 상관없지만 안맞을경우엔 바로 맞춰주도록 합니다.


[root@localhost /]# rdate -s time.bora.net
[root@localhost /]# date
2011. 02. 18. (금) 10:32:33 KST

로 바뀌는걸 확인할수가 있습니다. 허나 이건 컴퓨터 시간이지 메인보드 시간이 안맞으면 컴퓨터 시간또한 맞지 않습니다.

[root@localhost /]# clock
2011년 02월 18일 (금) 오전 10시 34분 25초  -0.462333 seconds

확인을 먼저해준다음 틀리시다면

[root@localhost /]# clock
2011년 02월 18일 (금) 오전 10시 34분 52초  -0.487528 seconds

컴퓨터 시간과 메인보드 시간을 맞추었습니다.. 이때 재부팅했을때도 마찬가지로 적용시키려면

[root@localhost /]# ls -l /etc/rc.d/rc.local
-rwxr-xr-x 1 root root 252  2월 14 14:00 /etc/rc.d/rc.local

이파일을 수정하도록 합니다. vi 에디터로 말이죠.

#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local
rdate -s time.bora.net
clock -w

이렇게 써준이후 재부팅을 하시면 재시작 하실때마다 컴퓨터 시간과 메인보드 시간이 맞춰
지는걸 확인하실수가 있습니다.

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