Why is my .htaccess rewrite rule redirecting to the wrong place - .htaccess

Question

This is the my .htaccess file:
RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www\.)?abc-something-old\.com [NC]
RewriteRule ^(.*)$ https://www.myglobalsite.com/$1 [R,L]
## DIRECTORY
Options +FollowSymLinks
Options All -Indexes
DirectoryIndex index.php
ErrorDocument 404 https://www.myglobalsite.com/
redirectMatch 301 ^/products$ https://www.myglobalsite.com/en/product/drinking-cups
redirectMatch 301 ^/products/vending.php$ https://www.myglobalsite.com/en/product/drinking-cups
redirectMatch 301 ^/products/drinking.php$ https://www.myglobalsite.com/en/product/drinking-cups
The issue is when it redirects, it redirects as follows:
from:
https://www.abc-something-old.com/products/vending.php
to:
https://www.myglobalsite.com/products/vending.php
should redirect to:
https://www.myglobalsite.com/en/product/drinking-cups
is the problem in my rewrite rule?

Answer 1

Directives in configuration files (a ".htaccess" fils is a "distributed configuration file") are processed from top to bottom.
The first redirection rule redirects all requests to the same resource path on the new domain. That means that your RedirectMatch directives further down never come into play.
You have to change the order of directives such that specialized, so more precise rules go to the top to get applied first . Also don't forget to correctly type the names of directives, so RedirectMatch instead of redirectMatch. More general rules, so typically catch-all rules go to the bottom to get applied as a last option if no specialized rule got applied before.
## DIRECTORY
Options +FollowSymLinks
Options All -Indexes
DirectoryIndex index.php
ErrorDocument 404 https://www.myglobalsite.com/
RedirectMatch 301 ^/products$ https://www.myglobalsite.com/en/product/drinking-cups
RedirectMatch 301 ^/products/vending.php$ https://www.myglobalsite.com/en/product/drinking-cups
RedirectMatch 301 ^/products/drinking.php$ https://www.myglobalsite.com/en/product/drinking-cups
RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www\.)?abc-something-old\.com [NC]
RewriteRule ^ https://www.myglobalsite.com%{REQUEST_URI} [R,L]
So far you are using a mixture of directives from the alias module and the rewrite module. You could unify that, though both approaches will work:
## DIRECTORY
Options +FollowSymLinks
Options All -Indexes
DirectoryIndex index.php
ErrorDocument 404 https://www.myglobalsite.com/
RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www\.)?abc-something-old\.com [NC]
RewriteRule ^/?products/?$ https://www.myglobalsite.com/en/product/drinking-cups [R,L]
RewriteCond %{HTTP_HOST} ^(www\.)?abc-something-old\.com [NC]
RewriteRule ^/?products/vending\.php$ https://www.myglobalsite.com/en/product/drinking-cups [R,L]
RewriteCond %{HTTP_HOST} ^(www\.)?abc-something-old\.com [NC]
RewriteRule ^/?products/drinking\.php$ https://www.myglobalsite.com/en/product/drinking-cups [R,L]
RewriteCond %{HTTP_HOST} ^(www\.)?abc-something-old\.com [NC]
RewriteRule ^ https://www.myglobalsite.com%{REQUEST_URI} [R,L]
And by the way: you only need the RewriteCond if both domains are served by the same http server and evaluate the same configuration file to process a request. Otherwise, if those are separate servers or separate virtual hosts with separate DOCUMENT_ROOT folders (which I would strongly recommend), you can simplify that:
## DIRECTORY
Options +FollowSymLinks
Options All -Indexes
DirectoryIndex index.php
ErrorDocument 404 https://www.myglobalsite.com/
RewriteEngine On
RewriteRule ^/?products/?$ https://www.myglobalsite.com/en/product/drinking-cups [R,L]
RewriteRule ^/?products/vending\.php$ https://www.myglobalsite.com/en/product/drinking-cups [R,L]
RewriteRule ^/?products/drinking\.php$ https://www.myglobalsite.com/en/product/drinking-cups [R,L]
RewriteRule ^ https://www.myglobalsite.com%{REQUEST_URI} [R,L]