404 for index.php

Question

I've recently switched from linux to windows hosting on IIS7. I have permalinks working fine, but for some reason when I try to view the site index (index.php) I get an internal wordpress 404. I can only assume this has something to do with the migration but am baffled as to the cause. My web.config contains this:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <httpErrors errorMode="Detailed" />
        <rewrite>
            <rules>
                <rule name="Main Rule" stopProcessing="true">
                    <match url=".*" />
                    <conditions logicalGrouping="MatchAll">
                        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
                        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
                    </conditions>
                    <action type="Rewrite" url="index.php" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>

The site in question is http://www.lime49.com/ . Is there something in Wordpress which could cause this?

Answer 1

The problem is IIS rewriting. You actually need to do two things to make this work if using custom permalinks on IIS.

In Settings-Permalinks select Custom Structure and enter /%postname%/. In your web.config, use this as your rewrite section:

<rewrite>
    <rules>
        <rule name="wordpress">
            <match url="^/(.*)$" />
                <conditions>
                    <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
                    <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
                </conditions>
            <action type="Rewrite" url="index.php" />
        </rule>
        <rule name="wordpress2">
            <match url="(?!index\.php|wp-|xmlrpc)(.*)" />
                <conditions>
                    <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
                    <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
                </conditions>
            <action type="Rewrite" url="index.php/{R:0}" />
        </rule>
    </rules>
</rewrite>

Answer 2

Do you have the SRG Clean Archives Plugin active on the site? If so, try disabling it.