Can I configure a subdomain to point to a specific port on my server
Solution 1:
If you have access to SRV Records, you can use them to get what you want :)
E.G
A Records
Name: mc1.domain.com
Value: <yourIP>
Name: mc2.domain.com
Value: <yourIP>
SRV Records
Name: _minecraft._tcp.mc1.domain.com
Priority: 5
Weight: 5
Port: 25565
Value: mc1.domain.com
Name: _minecraft._tcp.mc2.domain.com
Priority: 5
Weight: 5
Port: 25566
Value: mc2.domain.com
then in minecraft you can use
mc1.domain.com which will sign you into server 1 using port 25565
and
mc2.domain.com which will sign you into server 2 using port 25566
then on your router you can have it point 25565 and 25566 to the machine with both servers on and Voilà!
Source: This works for me running 2 minecraft servers on the same machine with ports 50500 and 50501
Solution 2:
If you want to host multiple websites in a single server in different ports then, method mentioned by MRVDOG won't work. Because browser won't resolve SRV records and will always hit :80
port.
For example if your requirement is:
site1.domain.com maps to domain.com:8080
site2.domain.com maps to domain.com:8081
Because often you want to fully utilize the server space you have bought. Then you can try the following:
Step 1: Install proxy server. I will use Nginx here.
apt-get install nginx
Step 2:
Edit /etc/nginx/nginx.conf
file to add the port mappings. To do so, add the following lines:
server {
listen 80;
server_name site1.domain.com;
location / {
proxy_pass http://localhost:8080;
}
}
server {
listen 80;
server_name site2.domain.com;
location / {
proxy_pass http://localhost:8081;
}
}
This does the magic. So the file will end up looking like following:
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
events {
worker_connections 768;
# multi_accept on;
}
http {
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# server_tokens off;
# server_names_hash_bucket_size 64;
# server_name_in_redirect off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# SSL Settings
##
ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
ssl_prefer_server_ciphers on;
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
##
# Gzip Settings
##
gzip on;
# gzip_vary on;
# gzip_proxied any;
# gzip_comp_level 6;
# gzip_buffers 16 8k;
# gzip_http_version 1.1;
# gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
##
# Virtual Host Configs
##
server {
listen 80;
server_name site1.domain.com;
location / {
proxy_pass http://localhost:8080;
}
}
server {
listen 80;
server_name site2.domain.com;
location / {
proxy_pass http://localhost:8081;
}
}
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
#mail {
# # See sample authentication script at:
# # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
# # auth_http localhost/auth.php;
# # pop3_capabilities "TOP" "USER";
# # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
# server {
# listen localhost:110;
# protocol pop3;
# proxy on;
# }
#
# server {
# listen localhost:143;
# protocol imap;
# proxy on;
# }
#}
Step 3: Start nginx:
/etc/init.d/nginx start
.
Whenever you make any changes to configuration, you need to restart nginx:
/etc/init.d/nginx restart
Finally: Don't forget to add A records in your DNS configuration. All subdomains should point to domain. Like this:
Put your static ip instead of 111.11.111.111
Further details:
-
http://tutorials.jenkov.com/nginx/index.html
-
Redirect subdomain to port [nginx/flask]
-
https://serverfault.com/questions/920534/nginx-proxy-subdomains-to-other-addresses-and-ports
Host Static Website:
If you have any static website (Like angular app), that you want to deploy in nginx itself. Place your index.html along with the other resources in some folder, like /srv/mySite
and add the following server block in nginx.conf:
server {
listen 80;
server_name staticSite.domain.com;
root /srv/mySite;
location / {
try_files $uri $uri/ /index.html;
}
}
Solution 3:
If you only got one IP on the server, there is no chance to do that. DNS is a simple name to number (IP) resolver. If you have two IPs on the server, you can point each subdomain to each of the IP-addresses and run both servers on the default port on each IP.
one.example.com -> 127.0.0.1 (server: 127.0.0.1:25565)
two.example.com -> 127.0.0.2 (server: 127.0.0.2:25565)
Solution 4:
I... don't think so. You can redirect the subdomain (such as blah.something.com
) to point to something.com:25566
, but I don't think you can actually set up the subdomain to be on a different port like that. I could be wrong, but it'd probably be easier to use a simple .htaccess or something to check %{HTTP_HOST} and redirect according to the subdomain.