It’s possible to censor status.php without break nextcloud ?
Edit : Question stupid, i can respond my own
For HaProxy, add in you Frontend (not advisable if the frontend manage multi vhost) or Backend (advisable).
acl restricted_page path_beg,url_dec -i /status.php
http-request deny if restricted_page
Or if you use apache2 add in your vhost file
<Location /status.php>
Order Allow,Deny
Deny from all
Allow from 192.168.1.0/24
</Location>