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Knowledge Base

How to configure redirect from domain name/IP address to server hostname on port 8443 in Plesk for Linux?

 
domain namedomainshostedhttphttps

Question

How to configure a redirect from the domain name/IP address to the server hostname on port 8443 in Plesk for Linux?

How to set up the following redirects in Plesk:

https://example.com:8443 => https://hostname.com:8443
https://203.0.113.2:8443 => https://hostname.com:8443

where:

  • "example.com" is any domain hosted on the Plesk server and resolved to it.

  • "hostname.com" is Plesk server hostname.

  • "203.0.113.2" is Plesk IP address.

Answer

  • To configure the redirect from the server IP address to the server hostname:

    https://203.0.113.2:8443 => https://hostname.com:8443

    Perform the following steps

    1. Connect to the server using SSH.

    2. Create the file /etc/sw-cp-server/conf.d/z-plesk.inc:

      # touch /etc/sw-cp-server/conf.d/z-plesk.inc

    3. Open the file /etc/sw-cp-server/conf.d/z-plesk.inc via any text editor and add the following lines to it:

      if ($host ~ '203.0.113.2'){
      rewrite ^/(.*)$ https://hostname.com:8443/$1 permanent;
      }

      Note: Replace 203.0.113.2 with the correct Plesk server's IP address, and hostname.com with the real Plesk server's hostname.

    4. Restart services sw-cp-server and sw-engine to apply changes:

      # service sw-cp-server restart && service sw-engine restart

      Note: Even after the redirect is set up and Plesk is secured by an SSL certificate, an attempt to access https://203.0.113.2:8443 in a browser will end up with the error regarding the untrusted certificate. It is expected behaviour and happens because the redirect is performed after the certificate check.

  • To configure the redirect from a domain name to the server hostname:

    https://example.com:8443 => https://hostname.com:8443

    Perform the following steps

    Note: If the domain(s) have HTTP Strict Transport Security (HSTS) enabled, disable it before applying the steps below.

    1. Connect to the server using SSH.

    2. Create the file /etc/sw-cp-server/conf.d/z-plesk.inc:

      # touch /etc/sw-cp-server/conf.d/z-plesk.inc

    3. Open the file /etc/sw-cp-server/conf.d/z-plesk.inc via any text editor and add the following lines to it:

      if ($host ~ 'example.com'){
      rewrite ^/(.*)$ https://hostname.com:8443/$1 permanent;
      }

      Note: Replace example.com with the correct website that resolves to Plesk server's IP address, and hostname.com with the real Plesk server's hostname

      For redirect from all hosted domains names to https://hostname.com:8443, add the following directives:

      if ($host !~ 'hostname.com|127.0.0.1|localhost'){
      rewrite ^/(.*)$ https://hostname.com:8443/$1 permanent;
      }

    4. Restart services sw-cp-server and sw-engine to apply changes:

      # service sw-cp-server restart && service sw-engine restart

      Note: Even after the redirect is set up and the website is secured with an SSL certificate, in an attempt to access https://example.com:8443 in a browser will end up with the error regarding the untrusted certificate. It is expected behaviour and happens because the redirect is performed after the certificate check.

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