DNS Response time cant monitoring on zabbix 6.0

[izelb]

In the Zabbix 5.0 , we were monitoring the DNS resolve time in ms. We used the dns[IP,example.com] item key for this. Although there is no change in zabbix 6.0, this key is no longer supported.
I am looking for another solution for dns resolve time monitoring.

[cyber]

it should be
net.dns[<ip>,name,<type>,<timeout>,<count>,<protocol>]
not just dns[]...

[izelb]

yeah ı know net.dns[]. this item key not supported float type. and it just show up or down. 1-0
ı looking for solution for dns resolve time monitoring. it doesnt have to be with this item key.

[dimir]

As I understand you want to monitor the RTT value of the DNS request. Unfortunately nothing like that comes out of the Zabbix box. But you can create a custom item, for example, additional Zabbix agent user parameter:

UserParameter=dns.rtt[*],dig A $1 +noall +stats | grep 'Query time' | cut -d' ' -f4
​

And then in the frontend create a Zabbix agent item with the domain that you want to query:

Key: dns.rtt[google.com]
​Type: Zabbix agent
Type of information: Numeric (unsigned)​

You will be receiving values in milliseconds. If you like, you can convert them to seconds but change the Type of information to Numeric (float) in this case.
If you need, you can extend item parameters, e. g. if you also would like to specify the name server to use in request:

UserParameter=dns.rtt[*],dig @$1 A $2 +noall +stats | grep 'Query time' | cut -d' ' -f4

Key: dns.rtt[8.8.8.8,google.com]

And if you want this to work on Zabbix server/proxy side you can use an item of type External check.