Comment on Weird Internet Behavior Starting Selfhost Server & PC's
just_another_person@lemmy.world 2 days ago
I might be misunderstanding, but you’re checking what exactly for DNS leaks?
If the IPs are changing, that’s not uncommon. The HOST changing would be though, like if you swapped from what you expected back to Comcast or something.
You need to get better control of your local network and not have to be paranoid about this. Static reservations for long lived hosts, your router should have a setting to override and prevent internal hosts (like guests) from sending OoB DNS requests, and any sort of VPS stack should as well.
Each different DNS leak test sites (multiple), were different, yet the same IP block. I don’t view it as paranoia. When you fire up your VPN, even though you have specified a certain locale, say Mexico, you still get different IPs each time you start your VPN, at least I do.
Example: 4.4.4.5, 4.4.4.6, 4.4.4.15
Same block, different IPs reported.
Yes, that’s called Round-Robin Load Balancing.
To get more specific, your DNS provider spins up a large number of DNS resolvers out in the world on a CDN network that resolves clients to the most geographically convenient server(s) at any point in time based on the GeoIP info of your public IP.
Once you resolve one set of addresses at any given time, it catches your request, so the next time you ask these DNS servers for something you’ll get a response right back from them as fast as possible.
You constantly checking is just going to show this. It’s quite normal.
I’ll have to accept a higher knowledge base than mine, but I check this every morning, and for years they have been the same across different leakcheck sites.
irmadlad@lemmy.world 2 days ago
Maybe a picture will help. This one is from Browserleaks:
Image
Where the IP is listed at the top of the page. All the last numbers in the IP sequence were different. Same block, still piped through Cloudflare tho.
just_another_person@lemmy.world 1 day ago
Your public IP is DHCP. It changes from time to time. Nothing weird about that.
Any of the other IP’s in the DNS Servers list changing is just what you get pointed to when resolved based on your GeoIP location.
irmadlad@lemmy.world 1 day ago
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 1 day ago
See my other response. This is quite normal.