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Internet Access

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Marco BARNIG edited this page Dec 8, 2019 · 7 revisions

To make your diskstation, hosting the RadioLogicArchive, accessible from the Internet, you must choose between two options:

  1. you opt for a business Internet access, for example, from POST Luxembourg, a Direct Internet Access (DIA) for SMB (small- and medium-sized business) or an ICT solution for a large business. You are a happy user and you can skip the present lesson. All problems will be solved by your Internet provider.

  2. you want to use your residential Internet access. In this case some efforts are required to become a happy user. You must intervene at several levels:

  • you must check that the upload speed of your Internet access is high, because downloading content from your diskstation by a remote Internet user corresponds to upload traffic on your Internet connection. This is usually only feasible with an optic fiber access.
  • you must subscribe to a public IP address. Most Internet providers only propose dynamic public IP adresses for residential customers, as an option. The following figure shows an extract from an account webpage, related to a residential BAMBOO L subscription at POST Luxembourg. The costs for a public IP address are less than 2 euros.

internet-account-mypost

  • you must register a domain name with a DNS provider that supports dynamic IP addresses. The domain name radiologic.fr is registered at the DNS-Stock, operated by Visual Online in Luxembourg.

radiologic-dns-stock

  • you must own a router that notifys the DNS registrar when the dynamic IP address changes, to update the configuration routing files. A great router which support this feature is the Fritzbox from AVM Germany. The next figure shows to set up the Fritzbox to notify the changes.

fritzbox-ip-notification

If you need to change more than a single domain name when the IP address changes, you must configure the router to send the notification to an intermediate server, which sends a sequence of change requests to the registrar for each domain name. This can be easely done with a small php script that is hosted in the webserver of the Synology diskstation.

ip-change

  • you must open the TCP ports used by Orthanc in your firewall. A first firewall is activated in your router. The following figure shows how to manage the TCP ports in the Fritzbox.

firewall-ports

If your firewall in the diskstation is activated, the Orthanc ports must also be configured in the related panel.

synology-firewall

  • if you want to route more than a single domain name to your diskstation, you need to execute an additional task. A reverse proxy is required which redirects incoming HTTP requests to the wanted TCP port, based on the URL icluded in the HTTP header. The Synology diskstation provides an embedded reverse proxy (open-source nginx server) which can do this job. The following figure shows how to configure the reverse proxy.

reverse-proxy

An overview of the complete Internet access is shown in the next figure.

internet-access-overview

If you want to add some icing on the cake, you can install an TLS certificate for your domain name and configure some other security features. Lesson 8 will tell you how to do it.

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