Joomla 3.*: Transferring a site to a subdomain, while keeping the URL from the PS?

Question

Joomla

Good day, dear experts The
question is the following:
I have a project that is located on the main domain: site.ru
Now there is a need to create several subdomains. On one of the subdomains, for example: server1.site.ru, you need to transfer the entire site from the main site.ru domain.
Transferring the site itself is not a problem, the problem is in the PS. What can or how can be done so that when a user leaves a search engine, he goes to a subdomain?
Example:
Old: site.ru/tester automatically switched to the new server1.site.ru/tester
In a word, specify 301 and redirect everyone to the subdomain.
Strongly do not kick pliz, if not quite correctly asked the question.
Thank you in advance for your help!

Answer 1

Useful links on this topic:

• Link 1
  
• Link 1