WordPress 3.0 Tutorial: How to Enable WordPress MU into WordPress 3.0

We have talked a lot about WordPress 3.0 and its capabilities. One of the major feature is ability to run multiple blogs from single WordPress installation. In this tutorial, I will guide you on how you can install multiple WordPress blog in WordPress 3.0. To get started with this upgrade your WordPress to 3.0 and enable multiple site network option.

Once you have edited your wp-config.php file to enable multiple network settings, go to Tools > Network : You will see a screen like this:

subdomain-sub-directories You have two options to select from

  • Sub-domain : site1.Wpveda.com
  • Sub-directories : wpveda.com/site1

In this case, site1 is your sub-domain.  First one is  working as a sub-domain and later one is sub directory. To make your sub-domain work, you need to play with DNS (A Name record). Where as for sub-directories, it is much easier to configure. In this tutorial we will be using Sub-directories.

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  • Select Sub directories
  • Give a Name to your network: Ex: Thesis Customization Service Sites
  • Admin Email:

Once you click on Install, you will be taken to next page, where you need to play with your wp-config file and .htaccess file.

1: Create blogs.dir directory

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Create a blogs.dir directory in /thesiscustomizationservice.com/wp-content. This directory is used to store uploaded media for your additional sites and must be writeable by the web server.

Login to your FTP  server and create a directory with name Blogs.dir under wp-content folder. This directory will be use to upload all the media files.

2. Add codes to wp-config.php file

add-multi-site-codes Open your wp-config file and add this line of code into it.

3. Add Authentication keys

authentication-keys

Add authentication keys into your wp-config file. You might need to replace the old authentication keys. I will suggest take a backup of your wp-config file.

4. Add .htaccess code:

htaccess

Last thing which you need to do is add few lines into your .htaccess file. If you don’t have .htaccess file by default, read this How to create .htaccess file for WordPress blog. Once you have done all this , click on log in at the lower right hand side and re login to your WordPress blog.

Super Admin in WordPress 3.0

So if you have done every thing as guided in the above post, after re-login you will see  box for super admin at the top left hand side. See Image below

super-admin That’s it, now your blog is MU compatible and you can add any no. of blogs with few clicks. I will be covering how to add more blogs into your WordPress 3.0 installation in the next post.

Do share your views about this tutorial. If you have any query feel free to ask via comments. If you like this post, don’t forget to share it with your followers via Twitter and Facebook.

Published by Ankit Puri

He is a Technology enthusiast, with a dream to web blog at a very young age and trying to reach new heights with his passion to write and contribute his work on his very own blog Extreme Trix.

37 replies on “WordPress 3.0 Tutorial: How to Enable WordPress MU into WordPress 3.0”

  1. Thank you sir for the informative post. I was able to upgrade an existing install to 3.0 and configure for multi-site using sub-folders (xxx.com/xxx) and the site is created and I can browse to it no issue. For some reason when I configure for sub-domains (yyy.xxx.com) I can add the site as Super Admin, but when I try and browse the site there is nothing there? Chrome comes back and says it can’t find the site. So, I went back to sub-folders. The problem is that I need to get domain mapping to work. I installed the plug in, added the ip address and then udated the “A” record for @. However, it redirects to hostgators ad server and serves up ads. So, I’m wondering if the domain mapping is a non starter for sub-folder sites? If this is true and sub domains are required for mapping then I’m wondering what I haven’t done, or done wrong. Either way I’m losing hair and sleep. Any help, suggestions, or nuggets of information leading to a resolution would would be most appreciated.

    Dan

    1. Hey Dan
      Did you ask hostgator support to add these A record or you did it yourself?
      Because I believe this needed to be done via tech support of Hostgator.
      Let me know.
      Regards
      Harsh

      1. The blog is a http://www.filmmakersvillage.com and the domain is on Go Daddy and the site is hosted by Host Gator. The domain I’m tying to map is frustratedfilmmakers.com and it is on Go Daddy. The only A Record that I added was the one for frustratedfilmmaker.com on Go Daddy. I have not touched filmmakersvillage.com in any manner either on Go Daddy or through the Control Panel on Host Gator. So, I’m still thinking the problem is that I’m using sub-folders and not sub-domains, but as I had mentioned, I can’t get sub-domains to work, so I’m stuck trying to map to a sub folder. Either way it’s a good thing that I’m good natured and patient, otherwise I’d be bald and drunk by now. Thanks Harsh for your reply and hopefully you’ll be able to offer some guideance based on the above that leads to some resolution.

    1. Not sure which is better, but I was not able to get domain mapping with sub folders but did with sub.domains, so in that respect for me sub.domains would seem to be the better choice. There’s an article over at Search Engine journal and he seems to argue in favor of sub-folders, which would lead me to want to use it, so maybe I’ll give it another stab. Here’s the article URL
      Search Engine Journal

  2. I’m so confused. I went to another domain and ran thruogh the whole process again making sure to configure for sub-domains rather then sub-folders. Still no joy. I was reading in some other forums that the domain to be redirected had to be parked in the main domain. I really don’t think this is true else, a very unscalabl process.
    Now what you say about the A record in hostgator confuses me. I have not touched the “A” record for the primary domain where 3.0 is installed. I only modified the “A” record for the domain I want to map on Go Daddy. Am I missing something? Do I need to modify the “A” record in the primary domains DNS zone?

  3. Ok, for the domain mapping the last thing to do ( and it was mentioned in some other forums) is the park the domain to be redirected on top of the domain that hosts wordpress. Don’t like this because it is manual, but now it works.

  4. Is there any way to point each site under the one mu WordPress install to a different IP address on the same server – so that each of your sites would appear as a different IP?

    Thanks.

  5. I am not very techy but managed to go through your instructions and IT WORKED! Thank you so much you did a great job in explaining everything to a T! I use dreamhost as my host and still had no problems at all.

  6. I wonder How to Move Back to normal Wp?? i mean I dont need MU, but I’ve done all the steps listed above…..and now i want to go back to normal…because i’ve changed my perma link structure..
    Please help.

    1. @Ali,

      If permalink structure is only problem, you may like to try this – http://wpveda.com/how-to-change-wordpress-permalink-without-breaking-post-permalink-structure/

      If “blog” is getting added to permalinks of your first post – it may be because you have activated multi-site in “subdirectory” mode.

      Still, if you want to revert back, you can export database using “Dashboard >> Tools >> Export” menu and import it on a fresh wordpress setup.

      1. Okay…quick question. I have wordpress mu installed and want to revert back, but I have a ton of content already created and published on my blog.

        So my question is if I export as you mention above do I need to purchase another domain and create a whole new blog? I want to just change my current blog back to normal without starting up a new blog. I ask this since you said I would have to import it on a fresh wordpress setup.

        I already have a lot of high ranking pages and don’t want to start over with a whole new domain and blog. Could you please explain how to do this without having to start over from scratch with a whole new domain and blog. I’m running wordpress 3.0.1

        Would I also loose all my rankings in Google if I did this?

  7. I’m wondering the same exact thing. I would think that you would need to just edit, or restore the wp-config and htaccess files back to their original state. That would be my guess. What else could one do? I haven’t tested this but if you have your original files, just restore them (but make sure you back up first)

  8. when I did this, I am getting an error like this:
    You do not have sufficient permissions to access this page.

    Please help….

  9. Thanks a lot! I`ve been looking for this for ages. The site was literally done in 5 min. Great tut!!!

  10. Why nobody mentioned that it’s not SUPER ADMIN anymore!!! It’s called “Network Admin” place on the top far right! Gosh! Nobody cares to say anything.

  11. These are great WordPress resources – I actually just started digging into a really really solid book on WordPress 3.0. It’s got some really nice code samples, and is written by a few pro WordPress developers (including some from Envato). I’m actually giving away 2 copies of the e-book on my site – check out the details about the e-book and the giveaway here – I think you’ll dig it : http://bit.ly/lq20Ff

  12. Thanks!! I had to go through this several times before I got it right but it’s a good walkthrough. Someday I’ll know WP like the back of my hand.

  13. I was also wondering about that. I thought i had did everything right, although i wasn’t prompted for the authentication keys. No super admin but i did get that network admin thing. Does that mean that I did everything properly? Also, when making the blog.dir file does one just need to go make new and label it that or do you need to specifically make it a directory somehow? Sorry guys but im new to all this. Thanks for any help!!

  14. When I try to add this “define(‘WP_ALLOW_MULTISITE’, true);”
    It create conflict with Google XML Sitemaps.. Getting this error msg”Google XML Sitemaps is not multisite compatible.”
    Any help really appreciates ….

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