Ignored mod_rewrite instructions in .htaccess (WordPress)

We’ve changed the permalink structure for our WordPress blog (bad idea, I know). I tried to avoid 404s from external links with mod_rewrite instructions in the .htaccess of the base folder of the WordPress installation:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^dddd-dd-dd_(.+)$ $1 [L]
# other rewrites
</IfModule>

I tried a few variations on that, even testing the full URL of one page, but the line keeps being ignored. But mod_rewrite is running – some other rewrites like

Read More
RewriteRule ^seiten/abo.php[5]?$   subscribe.php5 [R=301,L]

work perfectly. I’m stuck. Can anybody help?

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1 comment

  1. Try forcing a 301 redirect by adding R=301 flag in the square brackets:

    RewriteRule ^dddd-dd-dd_(.+)$ $1 [L,R=301]
    

    This will make it so other rewrites won’t (after the first rewrite iteration) modify the URI.