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Weird Internet Behavior Starting Selfhost Server & PC's (lemmy.world)
submitted 4 months ago by irmadlad@lemmy.world to c/selfhosted@lemmy.world
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Every morning, I do a multiple DNS Leak test just as a precaution. Today, I did the leak test and all my IPs were different. They were the same IP block, just different. This made me suspicious and I set about trying to track the problem down. Turns out, there was a misconfiguration in the VPS. Worked yesterday, different today. I guess it was ghosts or gremlins in the machinery.

I got to thinking, for you guys who download a lot of Linux ISOs, might be a good idea to check daily. Even though you are setting behind a VPN, it's still worth the minute it takes to fire off multiple DNS Leak checks just for a sanity check.

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[–] irmadlad@lemmy.world 1 points 4 months ago (1 children)

Hmmmm I seem to be unable to explain.

Ok. Fire up the VPN.

Do, 4 different, simultaneous, leak checks from multiple sites like Browser Leaks, dnscheck.tools, etc.

As in the picture, under 'Your IP'. Results:

Whereas xxx.xxx.xxx stayed the same, but the last set in the sequence was different in every test. The IP block (xxx.xxx.xxx.) was the same, just the last three digits were different in 4 different, simultaneous, tests. I realize VPN IPs change and so do Cloudflare IPs change. What I am saying is tho the IP block was the same (owned by the VPN), just the last three digits were different, even when I changed locales in my VPN.

I hope that explains what I'm trying to say.

[–] just_another_person@lemmy.world 3 points 4 months ago (1 children)

See my other response. This is quite normal.

[–] irmadlad@lemmy.world 0 points 4 months ago (1 children)

They have always been the same, now for years.

[–] just_another_person@lemmy.world 2 points 4 months ago

Then something has changed about the local deployment and concentration of the network near you. Don't know what to tell ya 🤷

As long as the provider is the same, and your instances are using properly using DoH or DoT, you have nothing to worry about.

If you're super concerned though, I'd be using Mullvad over Cloudflare though. Just saying.