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WordPress MU Domain Mapping
[resolved] Can DM use ns1.nameservers instead of cnam (5 posts)

  1. krystofo
    Member
    Posted 2 years ago #

    Can DM use ns1.nameservers instead of cname/aname aliasing?

    I have successfully activated the Domain Mapping Plug-in.

    However, I would prefer NOT to use CNAME OR ANAME ALIASING, even though these are the standard suggestions at WordPress.ORG. Disadvantages:
    -- CNAME aliasing creates problems with email services.
    -- ANAME aliasing requires each blogsite submitting new IP numbers if the IP changes.
    -- To submit either CNAME or ANAME at Enom, it is necessary to leave "our nameservers" selected, i.e., it is necessary to use Enom's busy "public nameservers." I have been informed by a webhost that this is less efficient than directly submitting nameservers.
    -- Most webhosts (including WordPress.COM) recommend activating nameservers, not CNAME or ANAME aliasing. I suspect that nameservers are more direct.

    I.e., I would like to do what WordPress.COM is doing: use Enom's "DNS Server Settings" to activate NAMESERVERS for "domain mapped" WordPress sub-blogs. (As opposed to Enom's "Host Records" settings for CNAME/ANAME aliasing.)

    If you do not understand what I mean, please click here for WordPress.COM: description of nameserver-based domain mapping.

    Is this possible with the Domain Mapping Plug-in? I suspect it might work, if I knew how properly to edit the HTTPD file in the Cpanel/DirectAdmin control panel. But I am not a programmer and do not even understand DNS very well. So far, nothing I try works. Thank you anyone.

    http://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/

  2. Ron Rennick
    MultiSite Guru
    Plugin Author

    Posted 2 years ago #

    No, DNS servers cannot be used in the plugin instead of A record or CNAMES.

    If you are going to do the DNS hosting for them, that's fine, but they have to go to their registrar and change their DNS servers to be yours.

    You'll have to make an admin page or similar which explains to them how to do that.

  3. krystofo
    Member
    Posted 2 years ago #

    No, DNS servers cannot be used in the plugin instead of A record or CNAMES.

    Thank you Guru Rennick! I was hoping that YOU would answer! I suspected this was the case, or else DNS mapping would be mentioned in the numerous WP-DM tutorials. But, I am starting several WP-MS and may even be posting instructions myself. So, I just wanted to lay the idea to rest. Thank you for doing so.

    If you are going to do the DNS hosting for them, that's fine, but they have to go to their registrar and change their DNS servers to be yours.

    Like I say, I am a blockhead when it comes to DNS. So I do not clearly understand why you make this statement. All I know is that IF my DNS servers are activated at Enom--THEN Enom refuses to activate ANAME or CNAME aliasing. HOWEVER--your statement implies that perhaps my client sub-sites can activate my DNS at Enom (or whatever registrar)--and then I can activate ANAME or CNAME aliasing AT MY SERVER.

    If not--then I am sounding silly and never mind. Like I say, I am a DNS blockhead. But if this is possible--then this is probably what WordPress.COM is doing--and this was what I was hoping for. So perhaps I was just not phrasing my question correctly. Perhaps it is "understood" in all the WP-DM tutorials that everybody knows this (except me). Also complicated by the fact I use DirecAdmin not Cpanel, while only Cpanel is referenced in most tutorials. So if nobody replies here again, I will now be asking my webhost and DirctAdmin:

    Is it possible to activate ANAME and CNAME aliasing at the server level, instead of at the registrar?

  4. Ron Rennick
    MultiSite Guru
    Plugin Author

    Posted 2 years ago #

    If you are going to do the DNS hosting for them, that's fine, but they have to go to their registrar and change their DNS servers to be yours.

    If you get a shared account with site5, hostgator, etc. you have the option of telling your domain registrar that your DNS servers are ns1.somehost.com & ns2.somehost.com (whatever ones the host provides). That's because the hosting company has dedicated DNS servers.

    If you want to host the DNS for your dm clients then you also have to run dedicated DNS servers (which is what WordPress.com does).

  5. krystofo
    Member
    Posted 2 years ago #

    Thank you Ron. I will ask if my webhosting can run dedicated DNS servers. If not, it's something I want to know about. I can always upgrade later. And in fact, I already have a sophisticated hosting account which probably can do this.

    This is a revelation for me. I thought that the domain mapping I sought was not mentioned in the WPDM tutorials because it is something highly special--but it seems now that it is simply a bit beyond the scope of the tutorials. What I was calling "nameserver-based domain mapping" still uses CNAME or ANAME aliasing--but it seems the only difference is in where the nameservers + aliasing is hosted: at the registrar or at the server.

    Also, I am perhaps unusual in having a sophisticated hosting account, but not understanding DNS. This combination seems to have resulted in a problem haunting me for months--but easily solved if only I knew who to ask and what to ask.

    Now it seems I simply must ask my webhost if I can run dedicated DNS servers, and thus generate my own CNAME or ANAME aliasing. If so, then I can easily find the instructions. I will do so. Thank you.

    (P.S. There are advantages however to hosting the aliasing at the registrar. The registrar then can offer registrar-based email hosting and forwarding, which is something for which I usually prefer not to be responsible. I.e., for small websites, registrar-based aliasing probably works fine and has some convenience advantages. But it certainly will be nice to have all options, to meet the needs of any situation. The really good news to me is that, even if I don't need this now, I probably can do this in the future without needing some sort of highly customized environment.)

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