Configuring DNS Cluster with DNSOnly Server

ImperialTrader

• January 06, 2020 18:53

It's my first time to configure a DNS Cluster with DNSOnly server, so I need someone to review the steps I did and correct it to me please.. I have 2 servers and 1 DNSOnly server My DNSOnly server is: dns.mydomain.com My 1st server is: s1.mydomain.com My 2nd server is: s2.mydomain.com I need all my customers were hosted on the 2 servers uses common nameservers which are (ns1.mydomain.com & ns2.mydomain.com) 1. I set a DNS of (ns1.mydomain.co & ns2.mydomain.com) to point to (DNSOnly server) IP 2. In (DNSOnly server): WHM > DNS Cluster page. I added the 2 servers with (Setup Reverse Trust Relationship, Synchronize Zones Immediately & DNS Role: Synchronize Changes) Now I see all the DNS records for all the websites hosted in (server1 + server2) appears at both servers. For example if (server1) hosted 100 websites and (server2) hosted 100 websites, I see the DNS records for the 200 websites appears at each one (server1 & server2). Is that correct or there is something wrong or missing?

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  cPanelLauren

  • January 08, 2020 18:51

  This will work but isn't the optimal configuration. Optimally, you should technically only be synchronizing DNS records to DNS only servers and not to other webservers. What it looks like has been done here is you synchronized back and forth on all servers so all servers are sharing the DNS zone files between each other which could cause conflicts. The recommended way to configure this is to set up s1 and s2 to write-only to the DNS server and the DNS server set to Standalone.

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  ImperialTrader

  • January 08, 2020 21:05

  This will work but isn't the optimal configuration. Optimally, you should technically only be synchronizing DNS records to DNS only servers and not to other webservers. What it looks like has been done here is you synchronized back and forth on all servers so all servers are sharing the DNS zone files between each other which could cause conflicts. The recommended way to configure this is to set up s1 and s2 to write-only to the DNS server and the DNS server set to Standalone.

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  cPanelLauren

  • January 08, 2020 22:42

  Hi @ImperialTrader I would set up Reverse trust for all of them What version is the DNSOnly installation?

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  ImperialTrader

  • January 08, 2020 23:05

  Hi @ImperialTrader I would set up Reverse trust for all of them What version is the DNSOnly installation?

  
  All servers are v84.0.19 Check the attached screenshot

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  ImperialTrader

  • January 09, 2020 20:10

  Hi @ImperialTrader I would set up Reverse trust for all of them What version is the DNSOnly installation?

  
  I removed and re-added it, and now it works fine :) Check the attached screenshot with the final configurations for my DNSOnly server, is it correct?

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  cPanelLauren

  • January 09, 2020 22:10

  Nice! That looks good!

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  ImperialTrader

  • January 09, 2020 22:13

  Nice! That looks good!

  
  Thank you :)

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