Actual topic "Russian domains on apache + nginx"

Question

Nginx

There was a problem, which is that the hosting control panel accepts Russian-language domains, but in the Wirth settings. Apache and nginx domains are a complete misunderstanding.
How to decide?
Apache simply does not accept Russian names, the reason for this is not clear.

Answer 1

Convert via libidn and forget that Russian-language domains exist somewhere other than the browser line (and not always there)
idn --quiet -a "domain.rf"
(only normal quotes - parser)

Answer 2

punycode converter convert vipnsk.rf to xn--b1amgljn.xn--p1ai
in /etc/apache2/sites-available create conf. file xn--b1amgljn.xn--p1ai.conf
in it
‹VirtualHost *:80›
ServerAdmin [email protected]
ServerName xn--b1amgljn.xn--p1ai
ServerAlias ​​www.xn--b1amgljn.xn--p1ai
DocumentRoot /home/ xn--b1amgljn.xn--p1ai/www/
‹Directory /home/xn--b1amgljn.xn--p1ai/www/›
Options None
AllowOverride All
Order allow,deny
allow from all
‹/Directory›
ErrorLog /home/xn --b1amgljn.xn--p1ai/error.log
LogLevel warn
CustomLog /home/xn--b1amgljn.xn--p1ai/access.log combined
‹/VirtualHost›
then a2ensite xn--b1amgljn.xn--p1ai
Important! The name of the directory with site files xn--b1amgljn.xn--p1ai