Nginx adding new site's subdomain takes no effect - nginx

Question

I have a VPS on digitalocean that works great with five subdomains. But when I decided to add 6th (RC), it doesn't work. In order not to make mistakes, I made the following:
duplicated existing (working) /var/www folder and renamed into rc
changed rights to this folder sudo chmod -R www-data:www-data rc
duplicated working config in etc/nginx/sites-available and renamed it to rc
changed server_name and root rooting there. So, it looks like so:
server {
listen 80;
listen [::]:80;
charset UTF-8;
server_name rc.myserver.com;
root /var/www/rc;
index index.html;
location ~ /\. {
deny all;
}
location / {
try_files $uri $uri/ /index.php?$args;
}
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php7.2-fpm.sock;
}
}
created symlink with ln -s /etc/nginx/sites-available/rc /etc/nginx/sites-enabled/rc
restarted nginx: sudo service nginx restart
Now my /etc/nginx/sites-enabled/ folder looks so:
lrwxrwxrwx 1 root root 31 Jul 21 2019 html -> /etc/nginx/sites-available/html
lrwxrwxrwx 1 root root 31 Jul 19 2019 hunt -> /etc/nginx/sites-available/hunt
lrwxrwxrwx 1 root root 32 Dec 2 16:43 monit -> /etc/nginx/sites-available/monit
lrwxrwxrwx 1 root root 29 Feb 1 13:57 rc -> /etc/nginx/sites-available/rc
lrwxrwxrwx 1 root root 31 Jul 21 2019 rent -> /etc/nginx/sites-available/rent
lrwxrwxrwx 1 root root 32 Jul 20 2019 tools -> /etc/nginx/sites-available/tools
sudo netstat -plutn | grep nginx shows:
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 29155/nginx: master
tcp6 0 0 :::80 :::* LISTEN 29155/nginx: master
My nginx.conf has this code lines active:
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
/var/log/nginx/error.log and /var/log/nginx/access.log didn't show any problems.
But when I try to get rc.myserver.com - I get "Failed to open the page" safari message:
Safari can’t open the page “http://rc.myserver.com” because Safari can’t find the server “rc.myserver.com.”
What's the problem can be with?

Answer 1

Did you point your subdomain to the Droplet ip-address ?
first thing you've to do is to point your subdomains to the single ip address via your DNS provider (A, CNAME).
I think that's why you are getting error:
Safari can’t open the page “http://rc.myserver.com” because Safari can’t find the server “rc.myserver.com”.
point rc.yourserver.com to Droplet IP address :)