RRH@VM.NRC.CA (04/16/91)
Hello Netters, This is my first posting to this group so excuse any mistakes. How do I use the NSLOOKUP to find the names of all the hosts of a domain. I am trying to locate the Network Ad. for locus.com. I don't have a clue what machine he uses. So I thought if I could list all the machines within locus.com, maybe some machine might give me a clue. Thanks in advance Ratilal Haria
leonard@telcom.arizona.edu (Aaron Leonard) (04/17/91)
In article <1991Apr15.211341.7704@nrcnet0.nrc.ca>, root@nrcnet0.nrc.ca (Operator) writes: |>How do I use the NSLOOKUP to find the names of all the hosts of a domain. You can try: $ nslookup > ls foo.dom > filename which may or may not work. |>I am trying to locate the Network Ad. for locus.com. I don't have a clue what |>machine he uses. So I thought if I could list all the machines within |>locus.com, maybe some machine might give me a clue. A better approach would be this: $ nslookup > set type=soa > locus.com The mail address (in username.fully.qualified.domain.name format) of the person responsible for the (nameservice for) the locus.com domain will be given. Actually in this case, we find that locus.com is an MX-only domain (i.e. does not appear to have any hosts directly attached to the Internet.) So you can drop back to plan #2, which is to send mail to postmaster@locus.com. (All machines that receive mail are required to have a mailbox called "postmaster" which is read by a human on a more or less regular basis.) Aaron
Mike.Marshall@HUBCAP.CLEMSON.EDU (System Janitor) (04/17/91)
You can usually find out with ls if you ask the right nameserver: Script started on Wed Apr 17 09:03:48 1991 csh> nslookup Default Server: hubcap.clemson.edu Address: 130.127.8.1 csh> nslookup Default Server: hubcap.clemson.edu Address: 130.127.8.1 > ls arizona.edu [hubcap.clemson.edu] Host or domain name Internet address *** Error during listing of arizona.edu: No information > set q=ns > arizona.edu Server: hubcap.clemson.edu Address: 130.127.8.1 Non-authoritative answer: arizona.edu nameserver = ARIZONA.EDU arizona.edu nameserver = CS.ARIZONA.EDU arizona.edu nameserver = PENDRAGON.CS.PURDUE.EDU Authoritative answers can be found from: ARIZONA.EDU inet address = 128.196.128.233 ARIZONA.EDU inet address = 128.196.128.234 CS.ARIZONA.EDU inet address = 192.12.69.1 PENDRAGON.CS.PURDUE.EDU inet address = 128.10.2.5 > set q=a > server arizona.edu Default Server: arizona.edu Address: 128.196.128.233 > ls arizona.edu [arizona.edu] Host or domain name Internet address arizona server = Arizona.EDU Arizona 128.196.128.233 Arizona 128.196.128.234 arizona server = CS.Arizona.EDU CS 192.12.69.5 arizona server = pendragon.cs.purdue.edu ... ludicrous amounts of information deleted ... flwo-gw 192.33.140.1 galileo 128.196.176.94 > ^D csh> ^D script done on Wed Apr 17 09:05:47 1991 -Mike
swansonc@acc.stolaf.edu (Chris Swanson) (04/18/91)
>>>>> On 15 Apr 91 21:11:35 GMT, >>>>> in message <1991Apr15.211341.7704@nrcnet0.nrc.ca>, >>>>> RRH@VM.NRC.CA wrote: RRH> Hello Netters, RRH> This is my first posting to this group so excuse any mistakes. RRH> How do I use the NSLOOKUP to find the names of all the hosts of a RRH> domain. I am trying to locate the Network Ad. for locus.com. I RRH> don't have a clue what machine he uses. So I thought if I could RRH> list all the machines within locus.com, maybe some machine might RRH> give me a clue. RRH> Thanks in advance Ratilal Haria First, you could try the whois program on locus to find the net record "handle" then use use that handle to lookup the actual net record, and that should give you the admin. contact. This would be easier than nslookup. If you still want/need to use nslookup, enter nslookup interactively and type "server locus.com" at the > promt to set up the ns server as locus.com then type the command "ls locus.com" and you should get a listing of all of the hosts in that domain if they have set it up to allow the ls. -Chris -- Chris Swanson, Chem/CS/Pre-med Undergrad, St. Olaf College, Northfield,MN 55057 DDN: (CDS6) INTERNET: swansonc@acc.stolaf.edu UUCP: uunet!stolaf!swansonc AT&T: Work: (507)-645-4528 Home: (507)-663-6424 I would deny this reality, but that wouldn't pay the bills...
NU021172@VM1.NODAK.EDU (Marty Hoag) (04/18/91)
On Wed, 17 Apr 91 09:09:21 -0400 you said: > >You can usually find out with ls if you ask the right nameserver: ... >> set q=a >> server arizona.edu >Default Server: arizona.edu >Address: 128.196.128.233 > >> ls arizona.edu >[arizona.edu] >Host or domain name Internet address > arizona server = Arizona.EDU > Arizona 128.196.128.233 > Arizona 128.196.128.234 > arizona server = CS.Arizona.EDU > CS 192.12.69.5 > arizona server = pendragon.cs.purdue.edu ... Is it a bug or a feature that this list is almost useless unless you do a set debug . Note on the sample above that the "Host or domain name" field is less than illuminating in most cases! The problem is that nslookup only lists the first element of the name, no matter what the domain is! The system I normally use is not unix but I just stumbled across this. I didn't see it listed in the man pages. Here is the same request with "set debug" on. Note that instead of just "pendragon" which you would have gotten without debug, you see that the entry is really not an arizona entity. > set debug > ls arizona.edu res_mkquery(0, arizona.edu, 1, 252) &arizona.edua Host or domain name Internet address arizona.edu server = Arizona.EDU 86400 Arizona.EDU 128.196.128.233 86400 Arizona.EDU 128.196.128.234 86400 arizona.edu server = CS.Arizona.EDU 86400 CS.Arizona.EDU 192.12.69.5 86400 arizona.edu server = pendragon.cs.purdue.edu 86400 pendragon.cs.purdue.edu 128.10.2.5 120034 arizona.edu 128.196.128.233 86400 arizona.edu 128.196.128.234 86400 wmorgan.peds-pulm.arizona.edu 128.196.164.8 86400 sec1.peds-pulm.arizona.edu 128.196.164.6 86400 ----------- Marty Hoag ND Higher Education Computer Network US Mail: NDSU Computer Center Phone: (701)-237-8639 Fax: (701)-237-7464 PO Box 5164 / UCCS Bitnet: nu021172@NDSUVM1 (NOTE 0 = ZERO) Fargo, ND 58105 Internet: nu021172@VM1.NoDak.EDU UUCP: ...!uunet!plains!vm1.nodak.edu!nu021172