dns test fails too early

[SZÉPE Viktor]

Hello!

This is the tcpdump of the DNS traffic seen from the server running monit.

19:00:42.561736 IP 94.237.82.24.54402 > 71.2.236.171.53: 1+ NS? . (17)
19:02:38.357505 IP 94.237.82.24.34137 > 71.2.236.171.53: 1+ NS? . (17)

This is the alert:

----- Forwarded message from address@hidden -----
   Date: Sat, 09 Dec 2017 19:00:43 GMT

Connection failed Service spamd

        Date:        Sat, 09 Dec 2017 19:00:43
        Action:      alert
        Host:        web.olmunkaido.hu
	Description: failed protocol test [DNS] at [71.2.236.171]:53 [UDP/IP]  
-- DNS: error receiving response -- Resource temporarily unavailable


Could it be that monit waits 1 second before reporting the DNS server offline?

Google shows: https://stackoverflow.com/a/2379587/1606933



SZÉPE Viktor, honlap üzemeltetés
https://github.com/szepeviktor/debian-server-tools/blob/master/CV.md
--
+36-20-4242498  address@hidden  skype: szepe.viktor
Budapest, III. kerület