new WP install alongside a subdirectory multisite on the same domain

I’ve inherited an existing multisite mysite.com installed at /www/mysite.com/public_html/ and I want to do a fresh WP install alongside it. My goal is to launch mysite.com/new as an internal test and then gradually migrate multisite into the new single site. So eventually mysite.com/new will become just mysite.com when the old site is ready to be retired. The existing multisite is subdirectory-based. The server is apache with a name-based vhosts config pointing mysite.com to /www/mysite.com/public_html/.

I installed the new instance of WP to /www/mysite.com/public_html_new/ and in the vhosts file copied the existing entry for the old site and edited it to point mysite.com/new to /www/mysite.com/public_html_new/. I’ve given the new install appropriate ownership and permissions per WP documentation. I have provisioned an external database for the new site as well.

My issue is that when I try to go to mysite.com/new, I get to the old site and not the new site. I need to be able to navigate to the new site and the old site.

A portion of the .htaccess file in the old site (/www/mysite.com/public_html/) contains the following that may be relevant:

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{HTTP_HOST} ^www\.mysite\.com [NC]
RewriteRule ^(.*)$ http://mysite.com/$1 [L,R=301]
#############
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>
#############

Any help is appreciated!

• This topic was modified 4 years, 7 months ago by Lena. Reason: tags and formatting