Re: nslookup enhancements for NSAP lookup, nsap@localhost

"Peder Chr. Norgaard" pcn@localhost writes:
> 	I hereby forward a set of enhancements to the nslookup program
> for easier lookup of NSAP addresses in DNS.

For those of you who use the ``host'' utility:
Similar nsap support has been incorporated in ``host''
as per version 940917. See below for a few examples.

[Note that this is the contrib/host, not the tools/host,
as distributed with BIND. Apart from being a DNS query
tool, this utility does syntax and semantics analysis
of the retrieved data on the fly. Several features have
been added since the version currently present in BIND.]

The latest version can be retrieved via anonymous ftp
from ``ftp.nikhef.nl'' in directory ``/pub/network''
as ``host.tar.Z'' or ``host_940917.tar.Z''.

(Apologies if you receive this message more than once.)

-- Eric Wassenaar


[] host -V 
Version 940917

# Fetch the nsap address of the specified host.

[] host -t nsap cursive.nsap.nist.gov 
cursive.nsap.nist.gov	NSAP	0x47.0005.8000.5A00.0000.0001.E133.FFFF.FF00.0171.00

# Do the reverse lookup. 0x prefix and dots are optional.
# The reverse name is printed in forward notation by default.

[] host -n 0x47.0005.8000.5A00.0000.0001.E133.FFFF.FF00.0171.00 
47.0005.8000.5A00.0000.0001.E133.FFFF.FF00.0171.00	PTR	cursive.nsap.nist.gov

# In verbose mode we see what we are actually doing.

[] host -v -n 0x47.0005.8000.5A00.0000.0001.E133.FFFF.FF00.0171.00 
Query about 0.0.1.7.1.0.0.0.F.F.F.F.F.F.3.3.1.E.1.0.0.0.0.0.0.0.0.0.A.5.0.0.0.8.5.0.0.0.7.4.nsap.int. for record types PTR
Trying 0.0.1.7.1.0.0.0.F.F.F.F.F.F.3.3.1.E.1.0.0.0.0.0.0.0.0.0.A.5.0.0.0.8.5.0.0.0.7.4.nsap.int ...
Query done, 1 answer, status: no error
The following answer is not authoritative:
47.0005.8000.5A00.0000.0001.E133.FFFF.FF00.0171.00	3561	IN	PTR	cursive.nsap.nist.gov
Authoritative nameservers:
47.0005.8000.5a00   	281735	IN	NS	wolf.ncsl.nist.gov
Additional information:
wolf.ncsl.nist.gov  	66686	IN	A	129.6.55.3
wolf.ncsl.nist.gov  	66686	IN	A	129.6.224.3

# Make a zone listing of a reverse mapping domain.

[] host -t any -l -n 0x47.0005.8000.5A00 
 !!! 0.0.A.5.0.0.0.8.5.0.0.0.7.4.nsap.int has only one nameserver wolf.ncsl.nist.gov
47.0005.8000.5A00   	SOA	wolf.ncsl.nist.gov. root.wolf.ncsl.nist.gov. (
			1994081700	;serial (version)
			1800	;refresh period
			300	;retry refresh time
			604800	;expiration period
			3600	;default ttl
			)
47.0005.8000.5a00   	NS	wolf.ncsl.nist.gov.
47.0005.8000.5a00.0000.0001.0002.0000.0c01.1748.00	PTR	sura-cgw.nsap.nist.gov.
47.0005.8000.5a00.0000.0001.0002.0000.9300.c4f0.00	PTR	pgw48.nsap.nist.gov.
47.0005.8000.5a00.0000.0001.e137.ffff.ff00.0164.00	PTR	infidel.nsap.nist.gov.
47.0005.8000.5a00.0000.0001.e133	NS	wolf.ncsl.nist.gov.

# The same, but force the output to be in full zone file format.

[] host -t any -lZ -n 0x47.0005.8000.5A00 
 !!! 0.0.A.5.0.0.0.8.5.0.0.0.7.4.nsap.int has only one nameserver wolf.ncsl.nist.gov
0.0.A.5.0.0.0.8.5.0.0.0.7.4.nsap.int.	3600	IN	SOA	wolf.ncsl.nist.gov. root.wolf.ncsl.nist.gov. (
			1994081700	;serial (version)
			1800	;refresh period
			300	;retry refresh time
			604800	;expiration period
			3600	;default ttl
			)
0.0.a.5.0.0.0.8.5.0.0.0.7.4.NSAP.INT.	3600	IN	NS	wolf.ncsl.nist.gov.
0.0.8.4.7.1.1.0.c.0.0.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.0.0.a.5.0.0.0.8.5.0.0.0.7.4.NSAP.INT.	3600	IN	PTR	sura-cgw.nsap.nist.gov.
0.0.0.f.4.c.0.0.3.9.0.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.0.0.a.5.0.0.0.8.5.0.0.0.7.4.NSAP.INT.	3600	IN	PTR	pgw48.nsap.nist.gov.
0.0.4.6.1.0.0.0.f.f.f.f.f.f.7.3.1.e.1.0.0.0.0.0.0.0.0.0.a.5.0.0.0.8.5.0.0.0.7.4.NSAP.INT.	3600	IN	PTR	infidel.nsap.nist.gov.
3.3.1.e.1.0.0.0.0.0.0.0.0.0.a.5.0.0.0.8.5.0.0.0.7.4.NSAP.INT.	3600	IN	NS	wolf.ncsl.nist.gov.

# How to distinguish between dotted quads and nsaps.

[] host -i 192.16.199.1
1.199.16.192.in-addr.arpa	PTR	nikhefh.nikhef.nl

[] host -n 192.16.199.1
Invalid nsap address 192.16.199.1

[] host -i 192.16.199.80
80.199.16.192.in-addr.arpa	PTR	hef-router.nikhef.nl

[] host -n 192.16.199.80
0.8.9.9.1.6.1.2.9.1.nsap.int does not exist (Authoritative answer)