nslookup not adding domainname

[Bob Van Cleef]

You nailed it in one!  The installation/upgrade program appended the line
"search arwin" to the resolv.conf file.  

The SERVFAIL problems were because 'thea' was the other host that was
upgraded.  It had "search thea" appended to its resolv.conf file.  The
SERVFAIL errors went away after I removed the bad entry.

I didn't spot the changes because the files, which are greated by a
distribution script, were otherwise unchanged.

Bob

On Mon, 17 Jul 2000, Kevin Darcy wrote:

> 
> Wild guess: do you have a line in your /etc/resolv.conf that starts "search
> arwin"?
> 
> (Those SERVFAIL responses probably bear some looking into as well, but I think
> your immediate problem is on the resolver side).
> 
> 
> - Kevin
> 
> Bob Van Cleef wrote:
> 
> > Just upgraded two systems to the VA Linux version of RedHat 6.2.
> >         bind-8.2.2_P5-9.i386.rpm
> >         bind-devel-8.2.2_P5-9.i386.rpm
> >         bind-utils-8.2.2_P5-9.i386.rpm
> >
> > They both exhibit the same symptoms: nslookup fails to resolv.
> >
> > Debug shows:
> >
> > > nslookup -debug thea
> > ------------ snip ------------ (full text below)
> > Server:  rama.microunity.com
> > Address:  192.86.9.33
> >
> > ;; res_nmkquery(QUERY, thea.arwin, IN, A)
> > ------------ snip --------  ^^^^^
> >                              \\\\\ name of the host requesting lookup
> >
> > If I manually add the domain name to the request it works.
> >
> > > nslookup thea.microunity.com
> > ------------ snip ------------
> > Server:  rama.microunity.com
> > Address:  192.86.9.33
> >
> > ;; res_nmkquery(QUERY, thea.microunity.com, IN, A)
> > ------------ snip ------------
> >
> > I've checked all the usual suspects:
> >
> > /etc/resolv.conf has the entry "domain microunity.com"
> > /etc/sysconfig/network has     "DOMAINNAME=microunity.com"
> > /etc/nsswitch.conf has         "hosts:      files dns"
> >      however, changing its ordering has no impact on any symptoms
> >
> > Changing /etc/hosts
> >         from:   192.86.9.81     arwin arwin.microunity.com
> >         to:     192.86.9.81     arwin.microunity.com
> >
> > got the "dnsdomainname" command to return the correct value.  Other,
> > non-upgrades systems return nothing, but nslookup works correctly without
> > that value being set on those systems - bind-8.2-6. (I'm of the opinion
> > that relying on the order of name aliases in the host file is a rather
> > poor method for setting a system value.)
> >
> > These systems functioned normally prior to the "upgrade".
> >
> > Bob
> > --
> > ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>
> > Bob Van Cleef, Member of Technical Staff         (408) 734-8100
> > MicroUnity Systems Engineering, Inc.         FAX (408) 734-8136
> > 475 Potrero Ave., Sunnyvale, CA 94086   vancleef at microunity.com
> >
> > Full text of the DEBUG output:
> >
> > vancleef [609] > nslookup thea
> > Server:  rama.microunity.com
> > Address:  192.86.9.33
> >
> > *** rama.microunity.com can't find thea: Server failed
> > arwin:/a/linux/Distributions/RedHat6.0-RPMS
> > vancleef [610] > nslookup -debugthea
> > ;; res_nmkquery(QUERY, 33.9.86.192.in-addr.arpa, IN, PTR)
> > ------------
> > Got answer:
> >     HEADER:
> >         opcode = QUERY, id = 2558, rcode = NOERROR
> >         header flags:  response, auth. answer, want recursion, recursion
> > avail.
> >         questions = 1,  answers = 1,  authority records = 1,  additional =
> > 1
> >
> >     QUESTIONS:
> >         33.9.86.192.in-addr.arpa, type = PTR, class = IN
> >     ANSWERS:
> >     ->  33.9.86.192.in-addr.arpa
> >         name = rama.microunity.com
> >         ttl = 43200 (12H)
> >     AUTHORITY RECORDS:
> >     ->  9.86.192.in-addr.arpa
> >         nameserver = thea.microunity.com
> >         ttl = 43200 (12H)
> >     ADDITIONAL RECORDS:
> >     ->  thea.microunity.com
> >         internet address = 192.86.7.24
> >         ttl = 43200 (12H)
> >
> > ------------
> > Default Server:  rama.microunity.com
> > Address:  192.86.9.33
> >
> > vancleef [611] > nslookup -debug thea
> > ;; res_nmkquery(QUERY, 33.9.86.192.in-addr.arpa, IN, PTR)
> > ------------
> > Got answer:
> >     HEADER:
> >         opcode = QUERY, id = 21897, rcode = NOERROR
> >         header flags:  response, auth. answer, want recursion, recursion avail.
> >         questions = 1,  answers = 1,  authority records = 1,  additional = 1
> >
> >     QUESTIONS:
> >         33.9.86.192.in-addr.arpa, type = PTR, class = IN
> >     ANSWERS:
> >     ->  33.9.86.192.in-addr.arpa
> >         name = rama.microunity.com
> >         ttl = 43200 (12H)
> >     AUTHORITY RECORDS:
> >     ->  9.86.192.in-addr.arpa
> >         nameserver = thea.microunity.com
> >         ttl = 43200 (12H)
> >     ADDITIONAL RECORDS:
> >     ->  thea.microunity.com
> >         internet address = 192.86.7.24
> >         ttl = 43200 (12H)
> >
> > ------------
> > Server:  rama.microunity.com
> > Address:  192.86.9.33
> >
> > ;; res_nmkquery(QUERY, thea.arwin, IN, A)
> > ------------
> > Got answer:
> >     HEADER:
> >         opcode = QUERY, id = 21898, rcode = SERVFAIL
> >         header flags:  response, want recursion, recursion avail.
> >         questions = 1,  answers = 0,  authority records = 0,  additional = 0
> >
> >     QUESTIONS:
> >         thea.arwin, type = A, class = IN
> >
> > ------------
> > ;; res_nmkquery(QUERY, thea, IN, A)
> > ------------
> > Got answer:
> >     HEADER:
> >         opcode = QUERY, id = 21899, rcode = SERVFAIL
> >         header flags:  response, want recursion, recursion avail.
> >         questions = 1,  answers = 0,  authority records = 0,  additional = 0
> >
> >     QUESTIONS:
> >         thea, type = A, class = IN
> >
> > ------------
> > *** rama.microunity.com can't find thea: Server failed
> 
> 
> 
> 
> 

-- 
><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>
Bob Van Cleef, Member of Technical Staff         (408) 734-8100
MicroUnity Systems Engineering, Inc.         FAX (408) 734-8136
475 Potrero Ave., Sunnyvale, CA 94086   vancleef at microunity.com