ScottH> 1) Is it possible to determine what ip range/space has been ScottH> given to user of that IP space? For example, in a colocation ScottH> environment, I am given say, a /24, and I want to look that up ScottH> and see if it really is a /24. I have found the -x option which ScottH> is making life a lot easier to find PTR records.
Sadly, it depends. Lots of folks don't keep up PTR records for customers or subdelegate PTR for assigned addr space, nor is there any guaranteed way to tie PTR records to ip addr assignments. Various whois tools (http://www.geektools.com/whois.php is a nice one) will give you some of the ARIN registry info for address space and routing registry info (see also, http://www.irr.net/docs/list.html for routing registries). But it assumes that the provider keeps this all up to date. ScottH> 2) Given an IP that does not have a PTR, how do I determine if ScottH> it has been "sub delegated" (?) to the user of that IP? I need ScottH> to learn whether or not I need to contact the IP provider, and ScottH> ask for a PTR record, or if I need to add one in myself. You can find out who owns the appropriate zone for a PTR record by using dig. Just be aware that nothing other than good practice dictates that the owner of an address range does or even can keep up the PTR records corresponding to them. At the least, with dig and whois, you should be able to find some contact to get things rolling. _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
