Configure a fixed second-level subdomain name to remotely access the intranet Synology NAS version 7.X [intranet penetration]
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Preface
In the previous introduction, we successfully used cpolar to create a data tunnel that can connect the intranet Synology NAS and the public Internet. However, the data tunnel at this time is in a temporary state (random domain name, reset every 24 hours), and is mostly used in test scenarios. If we want to have long-term and stable access to the intranet Synology NAS, we need further settings to convert the temporary data tunnel into a fixed tunnel (you need to be a VIP member of cpolar). Now, let's get started.
1. Create a fixed data tunnel
To create a fixed data tunnel, we need to fix the drifting ports from both the inlet and outlet ends of the tunnel. First we go to cpolar official website