4 ms·

Was it a real FB crawler or a random buggy homemade bot masquerading as one? Check here: https://developers.facebook.com/docs/sharing/webmasters/crawler/ https

Was it a real FB crawler or a random buggy homemade bot masquerading as one? Check here: https://developers.facebook.com/docs/sharing/webmasters/crawler/ https://developers.facebook.com/docs/sharing/webmasters/craw...

hinkley 6y ago
Someone up to no good using a false flag would not surprise me in the slightest. "who do people already like to hate? I'll pretend to be them."
- napolux 6y ago
  Doesn't seem the case https://apps.db.ripe.net/db-web-ui/query?searchtext=2a03:2880:20ff:d::face:b00c https://apps.db.ripe.net/db-web-ui/query?searchtext=2a03:288...
  - Wingy 6y ago
    IP packets have a source field, which can be fake and not their actual IP. That's a Facebook IP, but the packet might not have actually come from it.
    - detaro 6y ago
      If they made actual requests that went through, a connection got established. That won't happen with a faked source.
      - lgats 6y ago
        Could be the IP address OP is showing is actually from an X-Forwarded header or other proxy header (but not the actual source of the packet).
      - Wingy 6y ago
        Ah okay, thanks for helping me learn :)
    - thephyber 6y ago
      UDP packets can fake their source IP. TCP packets realistically can't.
      - hinkley 6y ago
        More precisely, spoofing a TCP handshake is a problem that we know how to prevent. Odds are pretty good that your kernel has these protections enabled by default, but it's not guaranteed and you should check as a matter of due diligence.
- draw_down 6y ago
  Why is it so hard for people here to believe that Facebook could have a crawler misbehaving? It is all over this thread, even though multiple people are saying they saw the same thing and confirmed the IP belonged to FB. What gives?
napolux 6y ago
One IP (ipv6) I just got from CloudFlare. https://www.ultratools.com/tools/ipv6InfoResult?ipAddress=2a03%3A2880%3A20ff%3A1b%3A%3Aface%3Ab00c&as_sfid=AAAAAAVa_685ehdliHL-fKlh3v8lQwcfqf1MvjqW2qgkQyyv8g2-z-m-XBtLtF3u6thsALQbH7xaIC7fHiD2oxyY4P-1HH-WSJe-3D4Cxyl64YVHDn9XR25Hm8GScudbWCNEWUw%3D&as_fid=4cf20d4e5d982453717d1efee86a730cba0705ee https://www.ultratools.com/tools/ipv6InfoResult?ipAddress=2a...

hinkley 6y ago

Someone up to no good using a false flag would not surprise me in the slightest. "who do people already like to hate? I'll pretend to be them."

napolux 6y ago
Doesn't seem the case https://apps.db.ripe.net/db-web-ui/query?searchtext=2a03:2880:20ff:d::face:b00c https://apps.db.ripe.net/db-web-ui/query?searchtext=2a03:288...
- Wingy 6y ago
  IP packets have a source field, which can be fake and not their actual IP. That's a Facebook IP, but the packet might not have actually come from it.
  - detaro 6y ago
    If they made actual requests that went through, a connection got established. That won't happen with a faked source.
    - lgats 6y ago
      Could be the IP address OP is showing is actually from an X-Forwarded header or other proxy header (but not the actual source of the packet).
    - Wingy 6y ago
      Ah okay, thanks for helping me learn :)
  - thephyber 6y ago
    UDP packets can fake their source IP. TCP packets realistically can't.
    - hinkley 6y ago
      More precisely, spoofing a TCP handshake is a problem that we know how to prevent. Odds are pretty good that your kernel has these protections enabled by default, but it's not guaranteed and you should check as a matter of due diligence.
draw_down 6y ago
Why is it so hard for people here to believe that Facebook could have a crawler misbehaving? It is all over this thread, even though multiple people are saying they saw the same thing and confirmed the IP belonged to FB. What gives?

napolux 6y ago

One IP (ipv6) I just got from CloudFlare. https://www.ultratools.com/tools/ipv6InfoResult?ipAddress=2a03%3A2880%3A20ff%3A1b%3A%3Aface%3Ab00c&as_sfid=AAAAAAVa_685ehdliHL-fKlh3v8lQwcfqf1MvjqW2qgkQyyv8g2-z-m-XBtLtF3u6thsALQbH7xaIC7fHiD2oxyY4P-1HH-WSJe-3D4Cxyl64YVHDn9XR25Hm8GScudbWCNEWUw%3D&as_fid=4cf20d4e5d982453717d1efee86a730cba0705ee https://www.ultratools.com/tools/ipv6InfoResult?ipAddress=2a...