> scanning an IP range that belongs to Facebook (199.201.65.0/24)
ping -4 facebook.com
results in 157.240.18.35. Maybe, author used some other way to get those IPs. Can anyone throw a light on this?
ping -4 facebook.com
results in 157.240.18.35. Maybe, author used some other way to get those IPs. Can anyone throw a light on this?
[0] https://en.wikipedia.org/wiki/Autonomous_system_%28Internet%...
[1] https://bgp.he.net/AS32934
Run the same query from a bunch of sites with different connectivity in the same town and you might get different answers depending on who's got peering agreements with who. Then spin that query again using other places in the world and you can get even more variety.
That is, assuming the site in question has worked out a way to vary the A/AAAA records for their actual domain (as opposed to the hosts within it, like "www"). Some of them might just point it at a single POP/frontend/whatever, and when that one goes down for whatever reason... things get interesting. Not that I would know anything about that.
Edit: https://bgp.he.net/search?search%5Bsearch%5D=facebook&commit...
...
157.240.18.0/24
...
https://www.shodan.io/search?query=net%3A199.201.65.0%2F24&l...
Login required