RS6000 named

[Joe Greco]

In article <121490.152613.heise1 at ibm.com> RAH at IBM.COM ("Russell A. Heise") writes:
 
> leclair at chamois.cs.uiowa.edu (Jeanne Leclair) writes:
 
> > I recently started bringing up a 530 RS6000 and want to run named.  I set up
> > named.boot, loopback.rev and root.cache like on our other machines running
> > named and fired it up. It works great for machines local to our departmental
> > domain (cs.uiowa.edu)... For on-campus hosts in other departments, however,
> > you would expect to be able to use hostname.dept-domain...that doesn't work 
 
> You missed nothing; yes, this is how it's supposed to work.  I assume you
> have set up an appropriate /etc/resolv.conf.  If so, AIX follows a two-step
> process to resolve a name to an address.  (1) First, AIX looks at the name
> passed *to* it.  If the name has a period (.) anywhere in it, AIX leaves it
> untouched.  Otherwise, AIX appends the domain string from /etc/resolv.conf.
> (2) Next, AIX sends the result of step 1 to the nameserver(s) listed in
> /etc/resolv.conf.

I don't have RFC's handy to back me up at this moment (but I believe that
they do).  However, this isn't how Berkeley's BIND works, and I believe if
you look around that you'll discover that this is prehistoric behaviour.

If you look in a BSD system's /usr/include/resolv.h, you'll run across a lot
of goodies...  anyways, look at the following behaviour on the part of BIND
4.8.1 and think about it.

It's a real pain to be on "thales.math.uwm.edu" and have to type
"csd4.csd.uwm.edu" instead of just "csd4.csd" to  get where you want to go.

.. Joe

encl: 200 lines of nslookup output.

-------------------------------------------------------------------------------
Joe Greco - University of Wisconsin, Milwaukee - Department of Mathematics
jgreco at archimedes.math.uwm.edu		USnail: Joe Greco
Voice: 414/321-6184				9905 W. Montana Ave.
Data:  414/321-9287 (Happy Hacker's BBS) 	West Allis, WI  53227-3329
ICBM:  43 05 20 N 87 53 10 W
#include <witty_and_humorous_saying.h>
Disclaimer: I don't speak for the Math Department, the University, or myself.


ericskey has logged on tty01 from local.
jgreco has logged on tty02 from local.
(archimedes.jgreco.p4-4) 1:36pm ~ 1 > nslookup
Default Server:  archimedes.math.uwm.edu
Address:  0.0.0.0

> set d
> archimedes.math
Server:  archimedes.math.uwm.edu
Address:  0.0.0.0

------------
Got answer:
    HEADER:
	opcode = QUERY, id = 1, rcode = NXDOMAIN
	header flags:  response, auth. answer, want recursion, recursion avail.
	questions = 1,  answers = 0,  auth. records = 1,  additional = 0

    QUESTIONS:
	archimedes.math.math.uwm.edu, type = A, class = IN
    AUTHORITY RECORDS:
    ->  math.uwm.edu	origin = math.uwm.edu
	mail addr = jgreco.archimedes.math.uwm.edu
	serial=901119, refresh=1 hour, retry=1 hour
	expire=41 days 16 hours, min=1 hour

------------
Failed: NXDOMAIN, num. answers = 0, ns = 1, additional = 0
------------
Got answer:
    HEADER:
	opcode = QUERY, id = 2, rcode = NOERROR
	header flags:  response, auth. answer, want recursion, recursion avail.
	questions = 1,  answers = 1,  auth. records = 0,  additional = 0

    QUESTIONS:
	archimedes.math.uwm.edu, type = A, class = IN
    ANSWERS:
    ->  archimedes.math.uwm.edu	inet address = 129.89.14.64

------------
Name:    archimedes.math.uwm.edu
Address:  129.89.14.64

> csd4.csd
Server:  archimedes.math.uwm.edu
Address:  0.0.0.0

------------
Got answer:
    HEADER:
	opcode = QUERY, id = 3, rcode = NXDOMAIN
	header flags:  response, auth. answer, want recursion, recursion avail.
	questions = 1,  answers = 0,  auth. records = 1,  additional = 0

    QUESTIONS:
	csd4.csd.math.uwm.edu, type = A, class = IN
    AUTHORITY RECORDS:
    ->  math.uwm.edu	origin = math.uwm.edu
	mail addr = jgreco.archimedes.math.uwm.edu
	serial=901119, refresh=1 hour, retry=1 hour
	expire=41 days 16 hours, min=1 hour

------------
Failed: NXDOMAIN, num. answers = 0, ns = 1, additional = 0
------------
Got answer:
    HEADER:
	opcode = QUERY, id = 4, rcode = NOERROR
	header flags:  response, want recursion, recursion avail.
	questions = 1,  answers = 1,  auth. records = 4,  additional = 6

    QUESTIONS:
	csd4.csd.uwm.edu, type = A, class = IN
    ANSWERS:
    ->  csd4.csd.uwm.edu	inet address = 129.89.7.4
    AUTHORITY RECORDS:
    ->  uwm.edu	nameserver = UWM.EDU
    ->  uwm.edu	nameserver = GARDEN-BRAU.CSD.UWM.EDU
    ->  uwm.edu	nameserver = GARCON.CSO.UIUC.EDU
    ->  uwm.edu	nameserver = UXC.CSO.UIUC.EDU
    ADDITIONAL RECORDS:
    ->  UWM.EDU	inet address = 129.89.7.2
    ->  UWM.EDU	inet address = 129.89.2.1
    ->  GARDEN-BRAU.CSD.UWM.EDU	inet address = 129.89.7.14
    ->  GARDEN-BRAU.CSD.UWM.EDU	inet address = 129.89.2.14
    ->  GARCON.CSO.UIUC.EDU	inet address = 128.174.5.58
    ->  UXC.CSO.UIUC.EDU	inet address = 128.174.5.50

------------
Non-authoritative answer:
Name:    csd4.csd.uwm.edu
Address:  129.89.7.4

> nowhere.null
Server:  archimedes.math.uwm.edu
Address:  0.0.0.0

------------
Got answer:
    HEADER:
	opcode = QUERY, id = 5, rcode = NXDOMAIN
	header flags:  response, auth. answer, want recursion, recursion avail.
	questions = 1,  answers = 0,  auth. records = 1,  additional = 0

    QUESTIONS:
	nowhere.null.math.uwm.edu, type = A, class = IN
    AUTHORITY RECORDS:
    ->  math.uwm.edu	origin = math.uwm.edu
	mail addr = jgreco.archimedes.math.uwm.edu
	serial=901119, refresh=1 hour, retry=1 hour
	expire=41 days 16 hours, min=1 hour

------------
Failed: NXDOMAIN, num. answers = 0, ns = 1, additional = 0
Timeout 1
------------
Got answer:
    HEADER:
	opcode = QUERY, id = 6, rcode = NXDOMAIN
	header flags:  response, auth. answer, want recursion, recursion avail.
	questions = 1,  answers = 0,  auth. records = 1,  additional = 0

    QUESTIONS:
	nowhere.null.uwm.edu, type = A, class = IN
    AUTHORITY RECORDS:
    ->  uwm.edu	origin = uwm.edu
	mail addr = james.uwm.edu
	serial=901217, refresh=1 day, retry=6 hours
	expire=7 days, min=14 hours

------------
Failed: NXDOMAIN, num. answers = 0, ns = 1, additional = 0
------------
Got answer:
    HEADER:
	opcode = QUERY, id = 7, rcode = NXDOMAIN
	header flags:  response, auth. answer, want recursion, recursion avail.
	questions = 1,  answers = 0,  auth. records = 1,  additional = 0

    QUESTIONS:
	nowhere.null, type = A, class = IN
    AUTHORITY RECORDS:
    ->  (root)	origin = NS.NIC.DDN.MIL
	mail addr = HOSTMASTER.NIC.DDN.MIL
	serial=901217, refresh=30 mins, retry=5 mins
	expire=7 days, min=1 day

------------
Failed: NXDOMAIN, num. answers = 0, ns = 1, additional = 0
*** archimedes.math.uwm.edu can't find nowhere.null: Non-existent domain
> ^D
(archimedes.jgreco.p4-4) 1:37pm ~ 2 > exit
exit