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I'm blocking Facebook DNS requests using DNS66. I'd also be interested in how to block their entire ASN, though.
by smichel17 7y ago
I'm blocking Facebook DNS requests using DNS66. I'd also be interested in how to block their entire ASN, though.
- yosamino 7y agoI am unable to verify this right now for the obvious reason, but facebook operates on ASN gAS32934[0] So you can ask https://www.radb.net/ https://www.radb.net/ for the IP addresses that are associated with this AS and, after a quick manual sanity check, insert it into the firewall of your choice. For example: whois -h whois.radb.net '!gAS32934'| tr ' ' "\n" | sed 's/^/saddr /'| sed 's/$/ DROP;/' [0] https://www.facebook.com/peering/ https://www.facebook.com/peering/