404 on all admin pages of main blog

[abbaanthony]

Hello all,

I am using 3.0-rc1-15112 and I think I found a bug. Before I explain, I have cleared my caches and cookies and reset the computer and was still able to recreate this bug.

It seems that whenever I log in to my site, the first time I click on anything in the backend, I get a 404 page. I can hit refresh and it will take me to the correct page, but the first click will almost always take me to a 404 first.

I am using 3.0-rc1-15112 as a multi-site set to subdomains. My permalinks are /2010/06/03/sample-post/. I am on a linux server using Apache 2.2.11, Perl 5.8.8, MySQL 5.0.90 and PHP 5.2.8.

I can recreate this bug on all the backend pages. I first noticed it though in the plugin pages when switching from all plugins to recently active, inactive or active. But since this latest nightly update, it seems to do it on any link I click on the backend. Strangely, it does not seem to affect any of the other blogs, just the main one. And it does not affect the frontend at all.

Thanks for all your hard work and for the great software!

Greg

[ocean90]

Do you have plugins activated? Is the 404 page server generated? Do you updated your .htaccess?

[abbaanthony]

I have tried with plugins activated and with all of them deactivated and it seems to make no difference. The 404 page is the wordpress 404 page not server generated. I do no manual updates to my .htaccess file.

[ocean90]

For reviewing.

[ryan]

What do the admin links on the main blog look like? How about on the other blogs? Do you notice a difference in how they are structured?

Go to /wp-admin/ms-sites.php and click "Edit" for the main blog. In the "Site options" section what are Siteurl and Home set to?

In wp-config.php, what are DOMAIN_CURRENT_SITE and PATH_CURRENT_SITE set to? Are WP_HOME or WP_SITEURL defined?

[nacin]

[14517] WP_HOME and WP_SITEURL noop in MS.

[abbaanthony]

Ok, the admin links are identical in both the main blog and all the subdomain blogs.

In the ms-sites page, the main blog siteurl is set to ​http://www.taac.us/ which is my main site address and home is the same.

In wp-config, domain_current_site is set to taac.us and path_current_site is set to /. WP_HOME and WP_SITEURL are not located in wp-config.

[nacin]

I'm wondering if we all missed this:

I do no manual updates to my .htaccess file.

You need to update your .htaccess file after installing MS. Additionally, you need a virtual host configuration and wildcard DNS set up for subdomains.

I'm inclined to close this and point you to the support forums -- ​http://wordpress.org/support/ -- as many of us have similar generic server setups and don't have any problems.

[abbaanthony]

I should point out that I was using WPMU and upgraded to 3.0 RC1.

[abbaanthony]

I should also point out that it worked fine as WPMU. I have the wildcard domain set up and have for some time.

[abbaanthony]

Ok. Maybe I have something here. I tried something to see what would happen. Originally I had the permalinks set to Day and name (i.e. ​http://www.taac.us/2010/06/11/sample-post/). I changed them to Default (i.e. ​http://www.taac.us/?p=123). Using day and name permalinks sends me to the WP 404 page when I click on a link in the admin section. Using default permalinks sends me to the main page of the blog when I click on an admin link.

I don't understand this, but maybe one of you do.

[nacin]

Sounds like an issue with your htaccess file. Can you paste the WP relevant rules here?

We really should enable Tools > Network for MU-originated blogs so the 3.0 rewrite rules can be shown, but for the most part they don't apply to MU-originated blogs.

[abbaanthony]

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /

#uploaded files
RewriteRule ^{(.*/)?files/$ index.php [L]
RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*
RewriteRule} (.*/)?files/(.*) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteCond %{REQUEST_URI} ^{.*/wp-admin$
RewriteRule} (.+)$ $1/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule . - [L]
RewriteRule ^{([_0-9a-zA-Z-]+/)?(wp-.*) $2 [L]
RewriteRule} ([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
</IfModule>

<IfModule mod_security.c>
<Files async-upload.php>
SecFilterEngine Off
SecFilterScanPOST Off
</Files>
</IfModule>

[abbaanthony]

Sorry, try this again.

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /

#uploaded files
RewriteRule ^(.*/)?files/$ index.php [L]
RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*
RewriteRule ^(.*/)?files/(.*) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteCond %{REQUEST_URI} ^.*/wp-admin$
RewriteRule ^(.+)$ $1/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule . - [L]
RewriteRule  ^([_0-9a-zA-Z-]+/)?(wp-.*) $2 [L]
RewriteRule  ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
</IfModule>

<IfModule mod_security.c>
<Files async-upload.php>
SecFilterEngine Off
SecFilterScanPOST Off
</Files>
</IfModule>

[nacin]

Just for kicks, can you try the new subdomain rules:

RewriteEngine On
RewriteBase /trunk/
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule . index.php [L]

[nacin]

Obviously with the proper rewrite base.

And yes, this is the entire rule set for subdomains. Most of the original rules were for subdirectory handling, while the async upload bit doesn't work on a lot of servers so we removed that from regular WP a long while ago.

[abbaanthony]

Replace everything in the .htaccess with what you posted above or only a section? If only a section, which section?

[nacin]

Everything you posted with everything I posted. Back up yours for reference. Replace my "RewriteBase /trunk/" with "RewriteBase /" to match yours.

[abbaanthony]

After I typed the comment I realized that you meant for me to replace everything in the file with yours. I did that and still have the issue.

[abbaanthony]

And I should also note, cleared the browser caches and restarted the browsers before checking on the changes. Still no joy.

[abbaanthony]

Never mind. Took a second for the .htaccess file to take effect. It is all well now! Thank you so much for the help!

This is why I stick with WP. You guys are great.

[nacin]

POW!

You're welcome :-)