i want to query root servers directly instead of my ISP dns and for tht have used couple of commands like " tracert " and route through (RT) but wasnt able to query root server directly , if u know how to directly query root server thn plz help
Use dig(1). Eg. to see the nameservers that the cn domain is delegated to try:
% dig @f.root-servers.net cn IN NS
Although I can't really see much point in doing this -- the root servers will only return actual answers to queries about top level domains (see http://www.iana.org/cctld/cctld-whois.htm and http://www.iana.org/gtld/gtld.htm ) -- otherwise, and the vast majority of the time, they'll just tell you to go and bother some other nameserver which has data about the next level down the domain hierarchy.
If your ISPs nameservers are unreliable or overloaded, and not giving you a good service, then one course of action you might consider is just configuring the named(8) built into your FreeBSD system to do recursive DNS lookups for you. (And caching -- but that's a given for any sort of DNS server). If you (or anyone) is interested I'll be happy to post a HowTo to the list.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 8 Dane Court Manor
School Rd
PGP: http://www.infracaninophile.co.uk/pgpkey Tilmanstone
Tel: +44 1304 617253 Kent, CT14 0JL UK
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