Creating Nameservers behind NAT

fgjr

• October 31, 2014 12:48

Hi All... Please forgive me as I'm a little new. I've owned plenty of cPanel / WHM dedicated servers in the past, but they have all been at data centers. This is the first time I'm creating a new dedicated server of my own and doing it behind a NAT. My question has to do with name servers and using NAT. I've built a CentOS server and used the image provided by cPanel with cPanel/WHM built into the image. I've started configuring the server from within WHM and I've gotten to step 4 where you specify name servers. Should I be using private name servers ( DNS servers ) that I have in my private LAN that route to outside DNS servers when local lookup of domains fail, or do I still need to create outside world public name servers and specify those within Step 4? I really appreciate any help someone can give me.

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  cPanelMichael

  • October 31, 2014 17:59

  ]or do I still need to create outside world public name servers and specify those within Step 4?

  
  Hello :) Yes, you should create public name servers at your registrar using public IP addresses and specify those on step four. Thank you.

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  fgjr

  • October 31, 2014 18:02

  ]Hello :) Yes, you should create public name servers at your registrar using public IP addresses and specify those on step four. Thank you.

  
  Thanks cPanelMichael for your answer. A quick follow up question... Do I then need to take those public IP addresses and have them 1:1 Nat back to my server behind the firewall? I'm assuming the answer to this is yes but want to make sure :)

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  cPanelMichael

  • October 31, 2014 18:29

  Hello :) You should add those IP addresses directly to your server and configure any custom network/firewall configurations as needed. Per our documentation: When you install cPanel & WHM, the installer will detect whether your server is on a NAT-configured network. If the installer detects a NAT-configured network, your server will configure itself for NAT mode and attempt to automatically map local IP addresses to public IP addresses. You can find the full document at: 1:1 NAT Thank you.

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