HOW SET PFSENSE FIREWALL ALLOW GOOGLE BOT (BY PTR RECORD, DNS LOOKUP)
hungudgm last edited by
Please help me, "Google doesn't post a public list of IP addresses for webmasters to whitelist"
So, we use ptr record, that use DNS lookup, and check record contain string ".googlebot.com" to whitelist
Please help me config in pfsense
Thanks for any help ;D
You cannot base firewall decisions on DNS results in that way.
And anyone who controls DNS for a netblock can return whatever result they want in a PTR, it would be trivial to bypass such a block.