안녕하세요.
오늘은 Cisco ASA에서 NTP Server 설정과 NTP Zone를 설정해 보겠습니다.
1. 싱가폴 NTP Server List 확인
google 에서 Singapore NTP server 검색
server 0.sg.pool.ntp.org server 1.sg.pool.ntp.org server 2.sg.pool.ntp.org server 3.sg.pool.ntp.org |
IP주소 확인
C:\Users\admin>ping 0.sg.pool.ntp.org Pinging 0.sg.pool.ntp.org [173.234.15.82] with 32 bytes of data: Reply from 173.234.15.82: bytes=32 time=40ms TTL=55 Reply from 173.234.15.82: bytes=32 time=38ms TTL=55 Reply from 173.234.15.82: bytes=32 time=39ms TTL=55 Reply from 173.234.15.82: bytes=32 time=40ms TTL=55 Ping statistics for 173.234.15.82: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 38ms, Maximum = 40ms, Average = 39ms C:\Users\admin> |
2. ASA에서 NTP Server 설정
ciscoasa(config)# ntp server 173.234.14.135 |
3. NTP Syn 되었는지 확인
ciscoasa# show ntp associations address ref clock st when poll reach delay offset disp ~173.234.14.135 17.253.60.125 2 15 64 0 5.2 1089.4 16000. * master (synced), # master (unsynced), + selected, - candidate, ~ configured |
곧바로 동기화가 안되고 약 10분 기다립니다.
ciscoasa# show ntp associations address ref clock st when poll reach delay offset disp *~173.234.14.135 17.253.60.125 2 45 64 1 3.4 0.80 15890. * master (synced), # master (unsynced), + selected, - candidate, ~ configured |
4. 시간 확인
ciscoasa# show clock 01:54:19.479 UTC Tue Apr 15 2025 |
5. Zone를 설정합니다.
ASA1(config)# clock timezone SGT +8 |
6. 시간 확인
ASA1# show clock 09:56:47.392 SGT Tue Apr 15 2025 |
정상적으로 싱가폴 시간이랑 동기화 되었습니다.
지금까지 [ASA #07] - NTP and NTP zone configuration 글을 읽어주셔서 감사합니다.
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