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I am having a problem with trying to redirect subdomain url to a Application server that have apps on different ports but a single IP address.

Basically, here are the steps: Client outside the network types in subdomain sub1.example.com, sub2.example.com, sub3.example.com. The DNS server is redirecting the information to a Gateway server, so all subdomains go to single external IP address 194.144.144.144. This is done and it works, it shows the Apache default page. The problem i am struggling is to redirect each subdomain from the Gateway server to the internal App server with single IP address 192.168.0.80 that have 3 apps for each subdomain on different ports.

Locally this works perfectly as i am calling the apps for example: https://192.168.0.80:1000, https://192.168.0.80:2000, https://192.168.0.80:3000.

However, I want to redirect each subdomain that the gateway server received to the appropriate port on the single IP address App server, as in sub1.example.com -> https://192.168.0.80:1000, sub2.example.com - > https://192.168.0.80:2000 and sub3.example.com -> https://192.168.0.80:3000.

I have tried with bind9, with apache virtuahost but no luck. I think I can try with squid also, however if someone can point something to use with apache or something else on Linux Debian. Is this possible ? As shown on the picture bellow. enter image description here

LinuxUser13
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  • Apache virtualhosts should work fine here. I would focus on the actual problems you're encountering. This would usually mean to include the relevant configuration in your question. Product recommendations are off-topic for serverfault. –  Jan 21 '21 at 18:10
  • It looks like you want to setup reverse proxy on Apache. – Tero Kilkanen Jan 21 '21 at 19:54
  • I am trying with the following but no luck: SSLProxyEngine On ServerName sub2.example.com ProxyRequests Off ProxyPreserveHost On Order allow,deny Allow from all ProxyPass / https://192.168.0.80:2000/ ProxyPassReverse / https://192.168.0.80:2000/ I enabled proxy and proxy_http – LinuxUser13 Jan 22 '21 at 09:36

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