We have a main site in a subdirectory where our main domain is pointed and a lot of sites in root subfolders. some of they are subdomains.
main site (laravel install):
public_html/mainsite/default/public/index.php
secondary sites
public_html/rec/index.php
public_html/raesta/index.php
public_html/acrup/index.php
htaccess:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule ^(acrup) - [L]
RewriteRule ^(raesta) - [L]
RewriteRule ^(rec) - [L]
RewriteRule ^(.*)$ mainsite/default/public/$1 [L]
</IfModule>
The main site domain is http://mainsite.edu.ar
The problem is when we try to access http://mainsite.edu.ar/recursos returns 404
It seems it's matching the /rec part of the url
we already tried:
RewriteRule ^(rec)/?$ - [L]
resulting in: http://mainsite.edu.ar/recursos works but http://mainsite.edu.ar/rec doesn't
http://mainsite.edu.ar/raesta and http://acrup.mainsite.edu.ar both works fine
Maybe try this instead:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule ^/acrup/ - [L]
RewriteRule ^/raesta/ - [L]
RewriteRule ^/rec/ - [L]
RewriteRule ^(.*)$ mainsite/default/public/$1 [L]
</IfModule>
Your first try
RewriteRule ^(rec) - [L]
was hit by http://mainsite.edu.ar/recursos as well as http://mainsite.edu.ar/rec because both URIs (everything after the DNS-name mainsite.edu.ar) start with rec.
Your second take
RewriteRule ^(rec)/?$ - [L]
didn't work, becuase you made the trailing slash optional with /? so still both URIs were hit.
The difference with RewriteRule ^/rec/ - [L] is that it explicitly requires /rec/ --> a leading and trailing slash surrounding rec.