Funny, I wanna ping 8.8.8.8 every microsecond forever, and make as many machines as possible all around the world do the same...
Naughty naughty 🙂
Not a Google fan, huh?
In 2004 I would not have understood why!
Ping your own VPS?
Good alternative, thanks!
ICMP doesn't reveal any personal details. As opposed to say when you visit with the web browser where you can be fingerprinted, and perhaps have that tied to the rest of your browsing history or real world identity.
ICMP reveals your IP address, which is easily correlated with other traffic…
If the other traffic is already correlated to your IP, then what additional info does an ICMP echo leak?
It tells when the user is online. This is useful for sending spam, because being on top of the inbox makes it more likely your message will be read.
To be fair, I doubt anyone’s implemented this specifically for ICMP. Instead I’d expect tracking that watches for any IP traffic whatsoever, and that happens to include ICMP.
But this user plans to leave ping running all the time to check that their own Internet connection is working.
Either way, at any given time there's tons of traffic leaving your network, it just means that software is active, not that a human is active. On top of that, Cloudflare probably isn't selling the fact that an ICMP ping was received at their DNS server directly to spammers quickly enough for them to act and put an email at the top of your inbox, assuming that spam isn't caught by a spam filter first.
Hmmm, is CloudFlare known for being a bad actor in terms of privacy?
Setting that aside, no matter what you pick, you'll be exposing your IP address, from which your ISP and/or general location may be derived
If you don't trust CloudFlare with that information then you basically cannot trust anyone else, so maybe you'd need to run your own service and ping that instead now that you're in a situation where you can only trust yourself 🤷
The other issue that comes to mind is that you're only testing reachability to one address, which means you could get a false negative where that address stops working but the rest of the internet is actually fine
Ah, my threat model isn't that Snowden, thanks.
you could get a false negative
Good point. Will keep that in mind in general. (For this specific use case? Maybe it's fine since if I see the red bar while my apps are still working, I could ignore it - but now I'll think back to your comment and understand maybe Cloudflare is experiencing an issue. In which case I'll check their status pages and wouldn't be surprised to see some news article or complaints too!)
ping 1.1.1.1 -n 9999999999999999999999999999999999999999999
u won't
Maybe a pool of big corp captive portal / connectivity test servers? For example:
Clever! Thanks for finding those links too.
You could use Uptime-Kuma to actually ping any IP every 5 seconds.
I am so installing this! Will be very useful beyond the simple use case in my OP. Thanks Data.
x.x.x.x))((1.1.1.1
Most succinct yet informative possible description of IsThereNet, I think :)
Thanks everybody!
(1) ICMP (Internet Control Message Protocol) Echo Requests hardly constitute a burden on a server.
(2) There is little privacy concern simply exposing your IP to Cloudflare.
(3) Uptime-Kuma can be self hosted to accomplish this task with more bells and whistles.
(4) There is an appetite for daydreaming of DDOSing bad Alphabetic actors ;) You civilly digidisobedient rascals!
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