Two RFC2317 Questions

phn at icke-reklam.ipsec.nu phn at icke-reklam.ipsec.nu
Wed Apr 10 18:35:03 UTC 2002


Barry Finkel <b19141 at achilles.ctd.anl.gov> wrote:
> I have removed the "/25" from my zone definition, as others suggested.
> and I added the two swbell nameservers.  Here are my named.conf
> file and reverse zone:

Looks good :

> dig -x 216.60.241.17 ptr

; <<>> DiG 8.3 <<>> -x ptr
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 6, ADDITIONAL: 8
;; QUERY SECTION:
;;      17.241.60.216.in-addr.arpa, type = PTR, class = IN

;; ANSWER SECTION:
17.241.60.216.in-addr.arpa.  1h59m51s IN CNAME  17.0.241.60.216.in-addr.arpa.
17.0.241.60.216.in-addr.arpa.  1D IN PTR  csgax.able.anl.gov.

;; AUTHORITY SECTION:
0.241.60.216.in-addr.arpa.  1D IN NS  dns1.anl.gov.
0.241.60.216.in-addr.arpa.  1D IN NS  dns2.anl.gov.
0.241.60.216.in-addr.arpa.  1D IN NS  ns1.swbell.net.
0.241.60.216.in-addr.arpa.  1D IN NS  ns2.es.net.
0.241.60.216.in-addr.arpa.  1D IN NS  ns2.swbell.net.
0.241.60.216.in-addr.arpa.  1D IN NS  nsx.lbl.gov.

;; ADDITIONAL SECTION:
ns1.swbell.net.         1d23h59m49s IN A  151.164.1.1
ns2.es.net.             1d23h59m59s IN A  134.55.6.130
ns2.swbell.net.         1d23h59m49s IN A  151.164.1.7
nsx.lbl.gov.            23h59m59s IN A  131.243.64.3
dns1.anl.gov.           23h59m59s IN A  146.137.64.5
dns1.anl.gov.           23h59m59s IN A  130.202.20.5
dns2.anl.gov.           23h59m59s IN A  146.139.254.3
dns2.anl.gov.           23h59m59s IN A  130.202.20.3




> -----
> zone "0.241.60.216.in-addr.arpa." {
>         type master;
>         file "able.rev";
> };
> -----
> $TTL 86400 ; default time to live is 1 day
> $ORIGIN 0.241.60.216.in-addr.arpa.
> ;$INCLUDE named.local
> ;       named.soa
> ;       define start of authority, name servers and loopback
> ;       As per BIND 4.9 operations guide, serial number format is now
> ;               "YYYYMMDDNN" where NN is the daily sequence number.
> ;
> @               IN      SOA     dns0.anl.gov. hostmaster.anl.gov. (
>                                 2002041001      ; Serial
>                                 7200            ; Refresh     - 2 hours
>                                 3600            ; Retry       - 1 hour
>                                 1209600         ; Expire      - 14 days
>                                 604800 )        ; Neg. cache  - 7 days
>                 IN      NS      dns1.anl.gov.
>                 IN      NS      dns2.anl.gov.
>                 IN      NS      nsx.lbl.gov.
>                 IN      NS      ns2.es.net.
>                 IN      NS      ns1.swbell.net.
>                 IN      NS      ns2.swbell.net.
> ;
> 17      IN      PTR     csgax.able.anl.gov.
> <<I have omitted the rest of the zone.>>
> -----
> For the DNS registration   216.60.241.17 <===> csgax.able.anl.gov.

>     I can query the nodename; I get a the IP address in response.
>          216.60.241.17

>     I query the IP address; I get the CNAME in response.
>          17.0.241.60.216.in-addr.arpa.

>     I query the CNAME, and I get "NOERROR, ANSWER: 0" in response.
>
     Is there something else wrong with my configuration?

No, you will have to explicitly ask for 'PTR'


> britaine%  dig csgax.able.anl.gov.

> ; <<>> DiG 8.3 <<>> csgax.able.anl.gov. 
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 7
> ;; QUERY SECTION:
> ;;      csgax.able.anl.gov, type = A, class = IN

> ;; ANSWER SECTION:
> csgax.able.anl.gov.     1D IN A         216.60.241.17

> ;; AUTHORITY SECTION:
> able.anl.gov.           1D IN NS        dns1.anl.gov.
> able.anl.gov.           1D IN NS        dns2.anl.gov.
> able.anl.gov.           1D IN NS        nsx.lbl.gov.
> able.anl.gov.           1D IN NS        ns2.es.net.

> ;; ADDITIONAL SECTION:
> dns1.anl.gov.           1D IN A         130.202.20.5
> dns1.anl.gov.           1D IN A         146.139.254.5
> dns1.anl.gov.           1D IN A         146.137.64.5
> dns2.anl.gov.           1D IN A         130.202.20.3
> dns2.anl.gov.           1D IN A         146.139.254.3
> nsx.lbl.gov.            6h22m7s IN A    131.243.64.3
> ns2.es.net.             18h22m2s IN A   134.55.6.130

> ;; Total query time: 6 msec
> ;; FROM: britaine.ctd.anl.gov to SERVER: default -- 146.139.254.5
> ;; WHEN: Wed Apr 10 13:06:56 2002
> ;; MSG SIZE  sent: 36  rcvd: 248

> britaine%  
> --------
> britaine% dig -x 216.60.241.17

> ; <<>> DiG 8.3 <<>> -x 
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
> ;; QUERY SECTION:
> ;;      17.241.60.216.in-addr.arpa, type = ANY, class = IN

> ;; ANSWER SECTION:
> 17.241.60.216.in-addr.arpa.  2H IN CNAME  17.0.241.60.216.in-addr.arpa.

> ;; AUTHORITY SECTION:
> 241.60.216.in-addr.arpa.  2H IN NS  ns1.swbell.net.
> 241.60.216.in-addr.arpa.  2H IN NS  ns2.swbell.net.

> ;; ADDITIONAL SECTION:
> ns1.swbell.net.         2h38m48s IN A   151.164.1.1
> ns2.swbell.net.         14h50m39s IN A  151.164.1.7

> ;; Total query time: 163 msec
> ;; FROM: britaine.ctd.anl.gov to SERVER: default -- 146.139.254.5
> ;; WHEN: Wed Apr 10 13:07:22 2002
> ;; MSG SIZE  sent: 44  rcvd: 167

> britaine% 
> --------
> britaine% dig 17.0.241.60.216.in-addr.arpa.

> ; <<>> DiG 8.3 <<>> 17.0.241.60.216.in-addr.arpa. 
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
> ;; QUERY SECTION:
> ;;      17.0.241.60.216.in-addr.arpa, type = A, class = IN

> ;; AUTHORITY SECTION:
> 0.241.60.216.in-addr.arpa.  1W IN SOA  dns0.anl.gov. hostmaster.anl.gov. (
>                                         2002041001      ; serial
>                                         2H              ; refresh
>                                         1H              ; retry
>                                         2W              ; expiry
>                                         1W )            ; minimum


> ;; Total query time: 3 msec
> ;; FROM: britaine.ctd.anl.gov to SERVER: default -- 146.139.254.5
> ;; WHEN: Wed Apr 10 13:07:58 2002
> ;; MSG SIZE  sent: 46  rcvd: 105

> britaine%
> --------
> ----------------------------------------------------------------------
> Barry S. Finkel
> Electronics and Computing Technologies Division
> Argonne National Laboratory          Phone:    +1 (630) 252-7277
> 9700 South Cass Avenue               Facsimile:+1 (630) 252-4601
> Building 222, Room D209              Internet: BSFinkel at anl.gov
> Argonne, IL   60439-4828             IBMMAIL:  I1004994



-- 
Peter Håkanson         
        IPSec  Sverige      (At the Riverside of Gothenburg, home of Volvo)
           Sorry about my e-mail address, but i'm trying to keep spam out.
	   Remove "icke-reklam" and it works.


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