"CentOS ntp 설치"의 두 판 사이의 차이

2012년 10월 2일 (화) 00:59 판

✔️ CentOS 5.7에서 테스트하였습니다.

1 설치 확인

[root@jmnote ~]# rpm -qa ntp*

2 설치 위치

[root@localhost ~]# whereis ntp
ntp: /etc/ntp /etc/ntp.conf
[root@localhost ~]# which ntpq
/usr/sbin/ntpq
[root@localhost ~]# which ntpdate
/usr/sbin/ntpdate
[root@localhost ~]# which ntpd
/usr/sbin/ntpd
[root@localhost ntp]# service ntpd status
ntpd is stopped

설정파일 ntp.conf는 /etc에 있다.
ntpq, ntpdate, ntpd는 /usr/sbin에 있다.
ntpd는 중지된 상태이다.

3 동기화 서버 설정

4 즉시 동기화

명령어

ntpdate 서버주소

실행 예시

[root@localhost ntp]# ntpdate time.windows.com

5 같이 보기

@@ 3번째 줄: / 3번째 줄: @@
 ==설치 확인==
-<code>yum info ntp</code>로 설치 여부를 확인해 보자.
 <source lang='dos'>
-[root@localhost ~]# yum info ntp
+[root@jmnote ~]# rpm -qa ntp*
-Loaded plugins: fastestmirror
-Loading mirror speeds from cached hostfile
- * base: www.ftp.ne.jp
- * extras: www.ftp.ne.jp
- * updates: www.ftp.ne.jp
-Installed Packages
-Name       : ntp
-Arch       : x86_64
-Version    : 4.2.2p1
-Release    : 15.el5.centos
-Size       : 2.5 M
-Repo       : installed
-Summary    : Synchronizes system time using the Network Time Protocol (NTP).
-URL        : http://www.ntp.org
-License    : distributable
-Description: The Network Time Protocol (NTP) is used to synchronize a computer's
-           : time with another reference time source. The ntp package contains
-           : utilities and daemons that will synchronize your computer's time to
-           : Coordinated Universal Time (UTC) via the NTP protocol and NTP
-           : servers. The ntp package includes ntpdate (a program for retrieving
-           : the date and time from remote machines via a network) and ntpd (a
-           : daemon which continuously adjusts system time).
-           :
-           : Install the ntp package if you need tools for keeping your system's
-           : time synchronized via the NTP protocol.
-Available Packages
-Name       : ntp
-Arch       : x86_64
-Version    : 4.2.2p1
-Release    : 15.el5.centos.1
-Size       : 1.3 M
-Repo       : updates
-Summary    : Synchronizes system time using the Network Time Protocol (NTP).
-URL        : http://www.ntp.org
-License    : distributable
-Description: The Network Time Protocol (NTP) is used to synchronize a computer's
-           : time with another reference time source. The ntp package contains
-           : utilities and daemons that will synchronize your computer's time to
-           : Coordinated Universal Time (UTC) via the NTP protocol and NTP
-           : servers. The ntp package includes ntpdate (a program for retrieving
-           : the date and time from remote machines via a network) and ntpd (a
-           : daemon which continuously adjusts system time).
-           :
-           : Install the ntp package if you need tools for keeping your system's
-           : time synchronized via the NTP protocol.
 </source>
-ntp 4.2.2p1 (릴리즈 15.el5.centos)이 설치되어 있다. 원한다면 ntp 4.2.2p1 (릴리즈 15.el5.centos.1)로 업데이트 가능하다.
 ==설치 위치==