Check NTP port opened - Printable Version

Check NTP port opened - Printable Version

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+--- Thread: Check NTP port opened (/showthread.php?tid=4520)

Check NTP port opened - khalil - 21.01.2023

Hello
How to check the NTP port open or not in the LM?

RE: Check NTP port opened - admin - 23.01.2023

Use this test script:

Code:
res = io.readproc('ntpd -dnq -p 0.europe.pool.ntp.org 2>&1')

log(res)

NTP uses UDP port 123, check that it's not blocked on the firewall/router.

RE: Check NTP port opened - khalil - 24.01.2023

Thanks admin
if Port opened I should get something like this:

Code:
* string: ntpd: '0.europe.pool.ntp.org' is 194.58.200.20

ntpd: sending query to 194.58.200.20

ntpd: reply from 194.58.200.20: offset:-0.009966 delay:0.108452 status:0x24 strat:1 refid:0x00535050 rootdelay:0.000000 reach:0x01

ntpd: sending query to 194.58.200.20

ntpd: reply from 194.58.200.20: offset:-0.009715 delay:0.107909 status:0x24 strat:1 refid:0x00535050 rootdelay:0.000000 reach:0x03

RE: Check NTP port opened - admin - 24.01.2023

Yes, this is a correct response when NTP server can be reached.