Cfrtjryk

I have virtual setup on NAT in VMWare with a Cent OS as a DNS Server (192.168.102.159), I ran the zone and conf test through bind named, allresults are OK, when I run nslookup from a client I get :

nslookup

> server 192.168.102.159

Default server: 192.168.102.159

Address: 192.168.102.159#53

For the reverse lookup I get :

nslookup ns1.abc.local

Server:     192.168.102.2

Address:    192.168.102.2#53

** server can't find ns1.abc.local: NXDOMAIN

CONFIG FILES
ifcfg-ens33

TYPE=Ethernet

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=dhcp

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=ens33

UUID=c39a3132-fecb-4688-aa6a-b83e4d8f09a3

DEVICE=ens33

HOSTNAME=ns2

IPADDR=192.168.102.159

SUBNETMASK=255.255.255.0

ADAPTER=ens33

GATEWAY=192.168.102.2

DNS1="192.168.102.2

NM_CONTROLLED=no

ONBOOT=yes

named.conf

acl internals { 192.168.102.0/24;  };

options {

        listen-on port 53 { 127.0.0.1; 192.168.102.159; };

        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";

        recursing-file  "/var/named/data/named.recursing";

        secroots-file   "/var/named/data/named.secroots";

        allow-query     { localhost; internals; };



        recursion yes;



        dnssec-enable yes;

        dnssec-validation yes;



        bindkeys-file "/etc/named.iscdlv.key";



        managed-keys-directory "/var/named/dynamic";



        pid-file "/run/named/named.pid";

        session-keyfile "/run/named/session.key";

};



logging {

        channel default_debug {

                file "data/named.run";

                severity dynamic;

        };

};



zone "." IN {

        type hint;

        file "named.ca";

};



zone "abc.local" { type master; file "abc.db"; };



zone "102.168.192.IN-ADDR.ARPA" { type master; file "cba.db"; };



include "/etc/named.rfc1912.zones";

include "/etc/named.root.key";

abc.db

$TTL 3H

$ORIGIN abc.local.



@       IN SOA ns1.abc.local. admin.abc.local. (

                                        0       ; serial

                                        1D      ; refresh

                                        1H      ; retry

                                        1W      ; expire

                                        3H )    ; minimum

        IN NS ns1.abc.local.



ns1     IN A 192.168.102.159

cba.db

$TTL 3H

$ORIGIN 102.168.192.IN-ADDR.ARPA.



@       IN SOA ns1.abc.local. admin.abc.local. (

                                        0       ; serial

                                        1D      ; refresh

                                        1H      ; retry

                                        1W      ; expire

                                        3H )    ; minimum

        IN NS ns1.abc.local.



100     IN PTR ns1.abc.local.

Zone and Conf check reports

[root@localhost ~]# named-checkzone 102.168.192.in-addr.arpa /var/named/cba.db

zone 102.168.192.in-addr.arpa/IN: loaded serial 0

OK

[root@localhost ~]# named-checkzone abc.local /var/named/abc.db

zone abc.local/IN: loaded serial 0

OK

[root@localhost ~]# named-checkconf

[root@localhost ~]# 

Firewall is configured as :

iptables -A INPUT -p udp -m state --state NEW -m udp --dport 53 -j ACCEPT

iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 53 -j ACCEPT

Thank you Mr Thomas, the issue is resolved, apparently, I was so into it that I even forgot I was using a machine that is not configured properly to check the DNS, even though the client was in the NAT network it was not issued a DHCP by the Cent OS Server and thus it did not have any DNS configuration either, I was testing the client by manually adding entries. Finally I tested it through putty as before and both forward and reverse lookups are resolving successfully. Thank you all for your guidance and time, appreciate it.