Use alternate IPs for NameServers?

avinash.pudota

• May 25, 2019 03:33

Hello, I have 6 IP's on server. IP1 is main IP and shared IP for all domains IP1 & IP2 are nameserver IP's for root. IP3 is dedicated for 1 account. Now, i want to set ip4 & ip5 as nameserver IP's for another reseller account. Initially i thought of adding ip4 also as reseller shared IP, so all accounts under reseller will share IP address 4 as main IP. But i found that it creates issues with Engintron plugin, so now i will only use IP1 as shared ip for all accounts. My doubt is if i set IP4 & ip5 as reseller Nameserver IP's and use IP1 as all reseller account's shared IP will it cause any DNS issues.?

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  GOT

  • May 25, 2019 12:13

  That won't cause any problems.

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  avinash.pudota

  • May 25, 2019 13:39

  Thank you.

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  cPanelLauren

  • May 28, 2019 17:49

  I also agree this shouldn't cause any issues. Thanks @GOT

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  vatra

  • October 25, 2023 10:46

  I have one main shared IP for the server: IP1 I have one dedicated IP for my root cPanel account: IP2 I found that my four nameservers use IP2, I don't know why, maybe I did this or the host set this up during installation.

  • Is it advisable to use the main server IP1 here or you can use any IP you like, it doesn't matter?
  • What is the benefit of dedicating an IP address(es) to nameservers (IP2, IP4, IP5 in the example above)?
  • Can each nameserver have its own IP?

  NOTE: My nameservers are registered with glue records pointing them to my IP1. NOTE: My hostname is a subdomain of my main domain, which may be why they set up IP2 on the nameservers.

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  cPRex Jurassic Moderator

  • October 25, 2023 22:12

  1 - You are welcome to use any IP you like - cPanel doesn't particularly care about your nameserver configuration. 2 - There is no benefit at all to using a dedicated IP for the nameservers. Many (I would say a vast majority) of cPanel systems are single-IP machines 3 - Yes

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  vatra

  • October 26, 2023 08:42

  Thank you! One more question: To register nameservers globally it is required to create glue records at the domain registrar and point nameservers to an IP. Do nameservers need to point to the same IP in the DNS Zone on the server via A records?

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  vatra

  • October 26, 2023 08:42

  And since I've already figured out how to do it, here is a little tutorial for those who are looking to achieve the same: CHANGE NAMESERVERS' IPS

  • [COLOR=rgb(184, 49, 47)]WHM > Server Configuration > Basic WebHost Manager" Setup > Nameservers > Configure Address Records
  • [COLOR=rgb(41, 105, 176)]WHM > Server Configuration > Terminal > Run script /usr/local/cpanel/scripts/updatenameserverips to update Nameserver Record Report
  • [COLOR=rgb(65, 168, 95)]WHM > DNS Functions > Nameserver Record Report > Check Nameservers' A Records For the Presence of New IP
  • [COLOR=rgb(65, 168, 95)]WHM > DNS Functions > DNS Zone Manager > Nameservers' Domain > Manage > Check Nameservers' A Records For the Presence of New IP
  • [COLOR=rgb(65, 168, 95)]FileZilla > /var/cpanel/nameserverips.yaml > Check Nameservers For the Presence of New IP

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  cPRex Jurassic Moderator

  • October 26, 2023 16:12

  Yes, the nameserver registration needs to happen at the registrar level and is controlled with DNS. The option in WHM >> Basic WebHost Manager Setup just controls what NS records get written to each DNS zone you create.

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  vatra

  • October 26, 2023 16:18

  But does the IP address need to be the same in glue records at the domain registrar and Basic WebHost Manager Setup?

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  cPRex Jurassic Moderator

  • October 26, 2023 16:33

  Ideally, yes.

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