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siberdinc
New Member
May 9, 2022
Question

My FQDN addresses sometimes cannot resolve names over firewall.

  • May 9, 2022
  • 1 reply
  • 1736 views

Hello there,

My FQDN addresses sometimes cannot resolve names over firewall.

In general, I organize the problem as follows;

1-) I restart the DNS server.
2-) I delete the FQDN address and add it again.

How can I solve this problem? Can I solve it by running a command in any CLI?

Thanks.

 

Problem image => https://prnt.sc/j-qFBwBONw4d 

 

 

1 reply

Vichu_94
Staff
Staff
May 9, 2022

Please try run the command :

di test application dnsproxy 7

By running the command, you could check the ip address for the particular domain name.

Please try to send the dns query from end user and make sure that the DNS ip address is configured on the client to verify if it getting resolved from the client 

You could also increase the dns cache ttl value :

config system dns
set dns-cache-ttl 1800
end

 

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