Bind

Mad Unix madunix at gmail.com
Sun Nov 18 18:54:57 UTC 2007


root at linuxvmware:~# nslookup linux1.my.lan
Server:         10.5.1.30
Address:        10.5.1.30#53

** server can't find linux1.my.lan.my.lan: NXDOMAIN

root at linuxvmware:~# nslookup linux1
Server:         10.5.1.30
Address:        10.5.1.30#53

** server can't find linux1: NXDOMAIN


root at linuxvmware:~# dig linux1.my.lan

; <<>> DiG 9.4.1-P1 <<>> linux1.my.lan
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 27174
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;linux1.my.lan.                        IN      A

;; AUTHORITY SECTION:
.                       10784   IN      SOA     A.ROOT-SERVERS.NET.
NSTLD.VERISIGN-GRS.COM. 2007111800 1800 900 604800 86400

;; Query time: 60 msec
;; SERVER: 10.5.1.30#53(10.5.1.30)
;; WHEN: Tue Nov  6 02:48:11 2007
;; MSG SIZE  rcvd: 107

root at linuxvmware:~# dig linux1

; <<>> DiG 9.4.1-P1 <<>> linux1
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15582
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;linux1.                                IN      A

;; AUTHORITY SECTION:
.                       10800   IN      SOA     A.ROOT-SERVERS.NET.
NSTLD.VERISIGN-GRS.COM. 2007111800 1800 900 604800 86400

;; Query time: 78 msec
;; SERVER: 10.5.1.30#53(10.5.1.30)
;; WHEN: Tue Nov  6 02:48:25 2007
;; MSG SIZE  rcvd: 99



On Nov 18, 2007 8:49 PM, Ezra Taylor <ezra.taylor at gmail.com> wrote:

> MadUnix:
>                      How is you system suspose to know who linux1 belongs
> to?  You have to do a dig or nslookup on linux1.my.lan and not just
> linux1.
> Or maybe I'm missing something here.
>
> Ezra
>
> On Nov 17, 2007 8:10 AM, Mad Unix <madunix at gmail.com> wrote:
>
> > Hi linuxers
> >
> > I am setting up a DNS/BIND for my local office 100 users for resolving
> > internal (nonroutable) and external names (internet)
> > for internet usage it works fine but for internal one it shows problems
> > am not using real name i called only my.lan
> > my DNS server 10.5.1.30  hostname: linux1.my.lan
> > my clients having 10.6.x.0/24
> > my servers having 10.5.0.0/16
> >
> > can any one tell me what am doing wrong?
> >
> > root at linuxvmware:~# cat /etc/resolv.conf
> > nameserver 10.5.1.30
> > domain my.lan
> > search my.lan
> >
> >
> >
> >
> >
> >
> > root at linuxvmware:~# nslookup redhat.com
> > Server:         10.5.1.30
> > Address:        10.5.1.30#53
> >
> > Non-authoritative answer:
> > Name:   redhat.com
> > Address: 209.132.177.50
> >
> > root at linuxvmware:~# dig redhat.com
> >
> > ; <<>> DiG 9.4.1-P1 <<>> redhat.com
> > ;; global options:  printcmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41276
> > ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 1
> >
> > ;; QUESTION SECTION:
> > ;redhat.com.                    IN      A
> >
> > ;; ANSWER SECTION:
> > redhat.com.             49      IN      A       209.132.177.50
> >
> > ;; AUTHORITY SECTION:
> > redhat.com.             370     IN      NS      ns1.redhat.com.
> > redhat.com.             370     IN      NS      ns2.redhat.com.
> > redhat.com.             370     IN      NS      ns3.redhat.com.
> >
> > ;; ADDITIONAL SECTION:
> > ns3.redhat.com.         90304   IN      A       66.187.229.10
> >
> > ;; Query time: 11 msec
> > ;; SERVER: 10.5.1.30#53(10.5.1.30)
> > ;; WHEN: Sun Nov  4 20:58:54 2007
> > ;; MSG SIZE  rcvd: 114
> >
> >
> >
> > root at linuxvmware:~# dig linux1
> >
> > ; <<>> DiG 9.4.1-P1 <<>> linux1
> > ;; global options:  printcmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2535
> > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
> >
> > ;; QUESTION SECTION:
> > ;linux1.                                IN      A
> >
> > ;; AUTHORITY SECTION:
> > .                       5874    IN      SOA     A.ROOT-SERVERS.NET.
> > NSTLD.VERISIGN-GRS.COM. 2007111601 1800 900 604800 86400
> >
> > ;; Query time: 2 msec
> > ;; SERVER: 10.5.1.30#53(10.5.1.30)
> > ;; WHEN: Sun Nov  4 20:59:23 2007
> > ;; MSG SIZE  rcvd: 99
> >
> >
> >
> > root at linuxvmware:~# nslookup linux1
> > Server:         10.5.1.30
> > Address:        10.5.1.30#53
> >
> > ** server can't find linux1: NXDOMAIN
> >
> > root at linuxvmware:~#
> >
> >
> >
> >
> >
> >
> >
> > /etc/named.caching-nameserver.conf
> >
> >
> > //
> > // named.caching-nameserver.conf
> > //
> > // Provided by Red Hat caching-nameserver package to configure the
> > // ISC BIND named(8) DNS server as a caching only nameserver
> > // (as a localhost DNS resolver only).
> > //
> > // See /usr/share/doc/bind*/sample/ for example named configuration
> files.
> > //
> > // DO NOT EDIT THIS FILE - use system-config-bind or an editor
> > // to create named.conf - edits to this file will be lost on
> > // caching-nameserver package upgrade.
> > //
> >
> > acl my-lan { 10.5.0.0/16; 10.6.40.0/24; 127.0/8; };
> >
> > options {
> >        forwarders { X.X.X.X; Y.Y.Y.Y; }; #IP of upstream ISP
> nameserver(s)
> >        forward only; #rely completely on our upstream nameservers
> >        listen-on port 53 { 127.0.0.1; 10.5.1.30;};
> >        listen-on { 10.5.1.30; };
> >        listen-on-v6 port 53 { ::1; };
> >        directory       "/var/named";
> >        dump-file       "/var/named/data/cache_dump.db";
> >        statistics-file "/var/named/data/named_stats.txt";
> >        memstatistics-file "/var/named/data/named_mem_stats.txt";
> >        query-source    port 53;
> >        query-source-v6 port 53;
> >        allow-query     { localhost; my-lan; };
> > };
> > logging {
> >        channel default_debug {
> >                file "data/named.run";
> >                severity dynamic;
> >        };
> > };
> >
> > zone "." {
> >        type hint;
> >        file "named.root";
> > };
> >
> >
> > # Forward Zone for my.lan domain
> > zone "my.lan" IN {
> >        type master;
> >        file "my.lan.zone";
> >        allow-query     { localhost; my-lan; };
> > };
> >
> > # Reverse Zone for my.lan domain
> > zone "0.10.in-addr.arpa" IN {
> >        type master;
> >           // file "10.0.zone";
> >           file "10.in-addr.arpa";
> >         //file "0.10.in-addr.arpa";
> >        allow-query     { localhost; my-lan; };
> > };
> >
> >
> > view localhost_resolver {
> >        match-clients      { localhost; 10.5.0.0/16; 10.6.40.0/24; 127.0
> /8;
> > };
> >        match-destinations { localhost; };
> >        recursion yes;
> >        include "/etc/named.rfc1912.zones";
> > };
> > ~
> >
> >
> >
> > ------------------------------
> > my.lan.zone
> >
> > $TTL    12h
> >
> > @       IN      SOA     linux1.my.lan. pons.my.lan.  (
> >                                2007052500      ; Serial
> >                                10800   ; Refresh
> >                                3600    ; Retry
> >                                604800  ; Expire
> >                                86400 ) ; Minimum
> > ;       Name servers
> >                IN      NS      linux1.my.lan.
> > ;       Mail servers
> >                IN      MX      5 linux1.my.lan.
> > ;       Individual servers
> > linux1          IN      A       10.5.1.30
> > linuxvmware     IN      A       10.6.40.81
> > mailhost        IN      CNAME   linux1
> > www             IN      CNAME   linux1
> >
> >
> > ----------------------------------
> >
> >
> > 10.in-addr.arpa
> >
> > $TTL    24h
> > ; 10.0.rev
> > @               IN      SOA     linux1.my.lan pons.my.lan. (
> >                2007052500
> >                10800
> >                3600
> >                604800
> >                86400 )
> >
> >                IN      NS      linux1.my.lan.
> >
> > 10              IN      PTR     linux1.my.lan.
> > 1               IN      PTR     linuxvmware.my.lan.
> >
> >
> >
> >
> >
> >
> >
> >
> > --
> > madunix
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
>
>
>
> --
> Ezra Taylor
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>



-- 
madunix



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