Domain Mapping with Point Mapped Domains to an IP Address

  • Hi all,

    I have a multi-site network setup using sub domains and have this plugin installed to handle domain mapping. At the moment on the Domain Mapping settings screen I have the servers IP (dedicated as there is a wildcard SSL installed) entered into the “Server IP Address” field.

    Currently mapped domain point their A record to this IP address and all works really well.

    My issue is that pointing the mapped domains to an IP address could cause potential problems in the future if, for whatever reason this IP has to change (new server with new host for example). It would mean re-pointing all 500 network sites which is not realistic.

    I notice the setting below is called “Server CNAME domain” and this seems to indicate that I can get mapped domains to point to a CNAME instead which I can then control which IP this is sent too.

    I was hoping that someone could walk me through this please? What do I enter into the “Server CNAME domain” box? Is it the network domain name? Also how would the DNS work here? What setup is needed for the mapped domain at the domain registrar (who controls the mapped domains DNS) level?

    Many thanks in advance.
    Mark

Viewing 4 replies - 1 through 4 (of 4 total)
  • Thread Starter Mark Wilkinson

    (@wpmarkuk)

    Sorry some auto correct has occurred on the topic title. It should read “Domain Mapping without Pointing Mapped Domains to an IP Address”.

    Plugin Author Ron Rennick

    (@wpmuguru)

    I was hoping that someone could walk me through this please? What do I enter into the “Server CNAME domain” box? Is it the network domain name?

    If you are setting up all the DNS yourself then it doesn’t matter what you enter in the CNAME field. That field is for display on the domain mapping tool admin screen. It does not affect the functioning of the plugin.

    You can use the main site as the CNAME or create a subdomain for that purpose.

    Also how would the DNS work here? What setup is needed for the mapped domain at the domain registrar

    You add a CNAME record instead of an A record for each mapped site.

    Thread Starter Mark Wilkinson

    (@wpmarkuk)

    Hi Ron,

    Many thanks for your reply. That all makes sense however the last part where you mentioned:

    You add a CNAME record instead of an A record for each mapped site.

    I thought that CNAMES had to be something.domain.com e.g. https://www.domain.com. This would mean that domain.com could not be mapped?

    Many thanks,

    Plugin Author Ron Rennick

    (@wpmuguru)

    I thought that CNAMES had to be something.domain.com

    That depends on your registrar. Some require it to be a subdomain & others do not.

Viewing 4 replies - 1 through 4 (of 4 total)
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