"리눅스 rdate: timeout"의 두 판 사이의 차이

64번째 줄: 64번째 줄:
*[[리눅스 시간 동기화 (rdate)]]
*[[리눅스 시간 동기화 (rdate)]]
*[[NTP 서버 목록]]
*[[NTP 서버 목록]]
*[[리눅스 rdate]]
*[[리눅스 nc]]
*[[리눅스 ntpdate: no server suitable for synchronization found]]
*[[리눅스 ntpdate: no server suitable for synchronization found]]


[[분류: NTP]]
[[분류: NTP]]

2016년 3월 25일 (금) 21:18 판

rdate: timeout for
rdate: Could not connect socket: Connection timed out

1 테스트

1.1 CentOS

  • 실패
Copy
[root@zetawiki ~]# rdate time.windows.com
rdate: timeout for time.windows.com
Copy
[root@zetawiki ~]# rdate ntp.kornet.net
rdate: timeout for ntp.kornet.net
  • 성공
Copy
[root@zetawiki ~]# rdate time.nist.gov
rdate: [time.nist.gov]	Fri Mar 25 21:16:13 2016
Copy
[root@zetawiki ~]# rdate time.bora.net
rdate: [time.bora.net]	Fri Mar 25 21:16:00 2016

1.2 우분투

  • 실패
Copy
root@zetawiki:~# rdate time.windows.com
rdate: Could not connect socket: Connection timed out
Copy
root@zetawiki:~# rdate ntp.kornet.net
rdate: Could not connect socket: Connection timed out
  • 성공
Copy
root@zetawiki:~# rdate time.nist.gov
Fri Mar 25 21:11:48 KST 2016
Copy
root@zetawiki:~# rdate time.bora.net
Fri Mar 25 21:11:49 KST 2016

2 37포트 확인

  • 실패
Copy
root@zetawiki:~# nc -vz -w3 time.windows.com 37
nc: connect to time.windows.com port 37 (tcp) timed out: Operation now in progress
root@zetawiki:~# nc -vz -w3 ntp.kornet.net 37
nc: connect to ntp.kornet.net port 37 (tcp) timed out: Operation now in progress
  • 성공
Copy
root@zetawiki:~# nc -vz -w3 time.nist.gov 37
Connection to time.nist.gov 37 port [tcp/time] succeeded!
root@zetawiki:~# nc -vz -w3 time.bora.net 37
Connection to time.bora.net 37 port [tcp/time] succeeded!

3 같이 보기