Auto-update system host if the agent's IP has changed

[DX-Kevin]

Auto-update system host if the agent's IP has changed
updateSystemHost checks if the current connection's IP matches the system's recorded host

[svenvg93]

Quick question: what will happen when I configured a dns name when adding the system and not a ip address?

btw please remove the committed agent binary from the commit 🙂

[Kinsue]

The necessity of this modification isn't entirely clear. Furthermore, as @svenvg93 pointed out, the current implementation relies on a simple string comparison, which would forcibly overwrite the domain name configured by the user.

Regarding the use case you mentioned, here are a few suggestions:

• For frequently changing IPs: The best practice is to use a Domain Name combined with DDNS. Handling dynamic IP resolution directly within the codebase exceeds the intended scope of this project, which aims to remain a lightweight monitoring solution.
• For restricted environments (No Domain/DDNS): the current version (v1.18.6) actually supports communication between a private network Agent and a public network Hub, as illustrated below:

You can simply enter any placeholder IP in the frontend.

Actually, older versions did indeed have an issue where Agents would go offline when the IP changed. But I haven't encountered it at all since upgrading to the newer releases.

I'd recommend trying out the latest version to see if it resolves your issue. 😄