multisite htaccess 301 redirects

Okay,

RewriteEngine On
RewriteBase /

# Blog ID1 Rewrite Rules
RewriteCond %{HTTP_HOST} ^(www\.)?primary-domain.co.uk [NC]
RewriteRule ^about/careers/$ contact/careers/ [R=301,NC,L]
RewriteRule ^glossary.html$ sitemap/ [R=301,NC,L]

# Blog ID3 Rewrite Rules
RewriteCond %{HTTP_HOST} ^(www\.)?mapped-domain3.co.uk [NC]
RewriteRule ^about/$ http://primary-domain.co.uk/about/ [R=301,NC,L]
RewriteRule ^news/$ http://primary-domain.co.uk/news/ [R=301,NC,L]

This works, there’s 158 more lines to my particular site but you get the idea. I hadn’t found a clear solution to this but this article helped me massively.

Hope this helps anyone else looking for the same solution 😉