← Back to context Comment by xena 19 hours ago It's forward confirming reverse DNS. I assumed that everyone does that by default. 2 comments xena Reply petee 8 hours ago What everyone does by default doesn't matter really here, it's that an IP owner/user can literally set the reverse to any arbitrary domain regardless if the actual domain has a record for that IP. What matters is both match, thats all I meant nalllar 1 hour ago xena said "forward confirming reverse" twice which means rdns and then resolving that forward to confirm it matches.
petee 8 hours ago What everyone does by default doesn't matter really here, it's that an IP owner/user can literally set the reverse to any arbitrary domain regardless if the actual domain has a record for that IP. What matters is both match, thats all I meant nalllar 1 hour ago xena said "forward confirming reverse" twice which means rdns and then resolving that forward to confirm it matches.
nalllar 1 hour ago xena said "forward confirming reverse" twice which means rdns and then resolving that forward to confirm it matches.
What everyone does by default doesn't matter really here, it's that an IP owner/user can literally set the reverse to any arbitrary domain regardless if the actual domain has a record for that IP. What matters is both match, thats all I meant
xena said "forward confirming reverse" twice which means rdns and then resolving that forward to confirm it matches.