Dns not updating records
For the purpose of this guide, I will be using three systems, one for Primary DNS server, other for secondary DNS, and the third one for DNS client.
All systems are running with Ubuntu 16.04 operating systems. Caching name server saves the DNS query results locally for a particular period of time.
I can use nslookup and it shows the server and the address fine.
To configure Caching name server, edit /etc/bind/options file: Here, for.is the forward zone file. And 192.168.1.202 is the IP address of secondary DNS server. pri IN A 192.168.1.200 sec IN A 192.168.1.201 client IN A 192.168.1.202 200 IN PTR pri. First, Update server using commands: Save and close the file.
This script is tested on these platforms by the author. If you try it and find that it works on another platform, please add a note to the script discussion to let others know.
The sample scripts are not supported under any Microsoft standard support program or service.
Let us verify the secondary DNS server with command: Note: Please note that the zone files will be transferred only when the Serial Number on the Primary DNS server is higher than the Secondary DNS server’s serial number.
Certbot uses a number of different commands (also referred to as “subcommands”) to request specific actions such as obtaining, renewing, or revoking certificates.
I try to register DNS on these computer using ipconfig /registerdns.