DNS Configuration:
IP Addresses and other settings:
DNS Server Details:
paw-racstorage-dns.airydba.com :
eth0 : 192.168.75.10 ---- For Public Network
gateway : 192.168.75.1
subnet : 255.255.255.0
hostname: paw-racstorage-dns.airydba.com
Primary DNS : 192.168.75.10
DNS Search Path : airydba.com
3 Nodes Details:
Node1:
paw-racnode1.airydba.com :
eth0: 192.168.75.11 ---- For Public Network
eth1: 10.0.0.1 ---- For Private Network
gateway : 192.168.75.1
subnet : 255.255.255.0
hostname: paw-racnode1.airydba.com
Primary DNS : 192.168.75.10
DNS Search Path : airydba.com
Node2:
paw-racnode2.airydba.com :
eth0: 192.168.75.12 ---- For Public Network
eth1: 10.0.0.2 ---- For Private Network
gateway : 192.168.75.1
subnet : 255.255.255.0
hostname: paw-racnode2.airydba.com
Primary DNS : 192.168.75.10
DNS Search Path : airydba.com
Node3:
paw-racnode3.airydba.com
eth0: 192.168.75.13 ---- For Public Network
eth1: 10.0.0.3 ---- For Private Network
gateway : 192.168.75.1
subnet : 255.255.255.0
hostname: paw-racnode3.airydba.com
Primary DNS : 192.168.75.10
DNS Search Path : airydba.com
Work To be performed on Machine on which DNS to be configure:
[root@paw-racstorage-dns ~]# mkdir -p /u01/rhel5_rpms
[root@paw-racstorage-dns ~]# chmod 777 /u01/rhel5_rpms
[root@paw-racstorage-dns ~]# cp -ar /media/SAI-OS-5U7_64bit/Server/*.* /u01/rhel5_rpms
[root@paw-racstorage-dns ~]# cd /u01/rhel5_rpms
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-chroot*
warning: bind-chroot-9.3.6-16.P1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:bind-chroot ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-libs*
warning: bind-libs-9.3.6-16.P1.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1: bind-libs ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh ypbind-1.19-12.el5_6.1.x86_64.rpm
warning: ypbind-1.19-12.el5_6.1.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1: ypbind ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-9.3.6-16.P1.el5.x86_64.rpm
warning: bind-9.3.6-16.P1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1: bind-9.3.6 ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-utils-9.3.6-16.P1.el5.x86_64.rpm
warning: bind-utils-9.3.6-16.P1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1: bind-utils ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-sdb-9.3.6-16.P1.el5.x86_64.rpm
warning: bind-sdb-9.3.6-16.P1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:bind-sdb ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-libbind-devel-9.3.6-16.P1.el5.x86_64
warning: bind-libbind-devel-9.3.6-16.P1.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:bind-libbind-devel ########################################### [ 100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh bind-devel-9.3.6-16.P1.el5.x86_64.rpm
warning: bind-devel-9.3.6-16.P1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:bind-devel ########################################### [100%]
[root@paw-racstorage-dns rhel5_rpms]# rpm -ivh caching-nameserver-9.3.6-16.P1.el5.x86_64.rpm
warning: caching-nameserver-9.3.6-16.P1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:caching-nameserver ########################################### [100%]
[root@paw-racstorage-dns ~]# rpm -qa bind*
bind-9.3.6-16.P1.el5
bind-utils-9.3.6-16.P1.el5
bind-devel-9.3.6-16.P1.el5
bind-sdb-9.3.6-16.P1.el5
bind-libbind-devel-9.3.6-16.P1.el5
bind-libs-9.3.6-16.P1.el5
bind-chroot-9.3.6-16.P1.el5
[root@paw-racstorage-dns ~]# rpm -qa system-config-bind*
system-config-bind-4.0.3-4.el5
[root@paw-racstorage-dns ~]# rpm -qa ypbind*
ypbind-1.19-12.el5_6.1
[root@paw-racstorage-dns ~]# rpm -qa caching-nameserver*
caching-nameserver-9.3.6-16.P1.el5
[root@paw-racstorage-dns ~]# cd /etc
[root@paw-racstorage-dns etc]# ll named*
lrwxrwxrwx 1 root named 52 May 11 12:21 named.caching-nameserver.conf -> /var/named/chroot//etc/named.caching-nameserver.conf
lrwxrwxrwx 1 root named 42 May 11 12:21 named.rfc1912.zones -> /var/named/chroot//etc/named.rfc1912.zones
[root@paw-racstorage-dns etc]# cp named.caching-nameserver.conf named.caching-nameserver.conf1
[root@paw-racstorage-dns etc]# mv named.caching-nameserver.conf named.conf
[root@paw-racstorage-dns etc]# ll named*
-rw-r----- 1 root root 1230 May 11 12:32 named.caching-nameserver.conf1
lrwxrwxrwx 1 root named 52 May 11 12:21 named.conf -> /var/named/chroot//etc/named.caching-nameserver.conf
lrwxrwxrwx 1 root named 42 May 11 12:21 named.rfc1912.zones -> /var/named/chroot//etc/named.rfc1912.zones
Orignal “/etc/named.conf” file :
[root@paw-racstorage-dns etc]# cat named.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.
//
options {
listen-on port 53 { 127.0.0.1; };
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";
// Those options should be used carefully because they disable port
// randomization
// query-source port 53;
// query-source-v6 port 53;
allow-query { localhost; };
allow-query-cache { localhost; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
view localhost_resolver {
match-clients { localhost; };
match-destinations { localhost; };
recursion yes;
include "/etc/named.rfc1912.zones";
};
Modified “/etc/named.conf” file :
[root@paw-racstorage-dns etc]# cat named.conf
// match-clients { localhost; };
// named.caching-nameserver.confalhost; };
// recursion yes;
// 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). .conf
//
// 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.
//
options {
listen-on port 53 { 127.0.0.1; 192.168.75.10; };
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";
// Those options should be used carefully because they disable port
// randomization
// query-source port 53;
// query-source-v6 port 53;
allow-query { localhost; any; };
allow-query-cache { localhost; any; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
view localhost_resolver {
match-clients { localhost; any; };
match-destinations { localhost; any; };
recursion yes;
include "/etc/named.rfc1912.zones";
};
Orignal “/etc/named.rfc1912.zones” :
[root@paw-racstorage-dns etc]# cat named.rfc1912.zones
// named.rfc1912.zones:
//
// Provided by Red Hat caching-nameserver package
//
// ISC BIND named zone configuration for zones recommended by
// RFC 1912 section 4.1 : localhost TLDs and address zones
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
zone "." IN {
type hint;
file "named.ca";
};
zone "localdomain" IN {
type master;
file "localdomain.zone";
allow-update { none; };
};
zone "localhost" IN {
type master;
file "localhost.zone";
allow-update { none; };
};
zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.local";
allow-update { none; };
};
zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
type master;
file "named.ip6.local";
allow-update { none; };
};
zone "255.in-addr.arpa" IN {
type master;
file "named.broadcast";
allow-update { none; };
};
zone "0.in-addr.arpa" IN {
type master;
file "named.zero";
allow-update { none; };
};
Modifed “/etc/named.rfc1912.zones”:
[root@paw-racstorage-dns etc]# cat /etc/named.rfc1912.zones
// named.rfc1912.zones:
//oot@paw-racstorage-dns etc]# vi named.rfc1912.zones
// Provided by Red Hat caching-nameserver package
//
// ISC BIND named zone configuration for zones recommended by
// RFC 1912 section 4.1 : localhost TLDs and address zones
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
zone "." IN {
type hint;
file "named.ca";
};
zone "airydba.com" IN {
type master;
file "for.zone";
allow-update { none; };
};
zone "localhost" IN {
type master;
file "localhost.zone";
allow-update { none; };
};
zone "75.168.192.in-addr.arpa" IN {
type master;
file "rev.zone";
allow-update { none; };
};
zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
type master;
file "named.ip6.local";
allow-update { none; };
};
zone "255.in-addr.arpa" IN {
type master;
file "named.broadcast";
allow-update { none; };
};
zone "0.in-addr.arpa" IN {
type master;
file "named.zero";
allow-update { none; };
};
[root@paw-racstorage-dns etc]# cd /var/named/chroot/var/named/
[root@paw-racstorage-dns named]# ll
total 44
drwxrwx--- 2 named named 4096 Aug 26 2004 data
-rw-r----- 1 root named 198 Dec 2 2010 localdomain.zone
-rw-r----- 1 root named 195 Dec 2 2010 localhost.zone
-rw-r----- 1 root named 427 Dec 2 2010 named.broadcast
-rw-r----- 1 root named 1892 Dec 2 2010 named.ca
-rw-r----- 1 root named 424 Dec 2 2010 named.ip6.local
-rw-r----- 1 root named 426 Dec 2 2010 named.local
-rw-r----- 1 root named 427 Dec 2 2010 named.zero
drwxrwx--- 2 named named 4096 Jul 27 2004 slaves
[root@paw-racstorage-dns named]# cp -a named.local for.zone
[root@paw-racstorage-dns named]# cp -a named.zero rev.zone
[root@paw-racstorage-dns named]# ll
total 52
drwxrwx--- 2 named named 4096 Aug 26 2004 data
-rw-r----- 1 root named 1087 May 11 12:54 for.zone
-rw-r----- 1 root named 198 Dec 2 2010 localdomain.zone
-rw-r----- 1 root named 195 Dec 2 2010 localhost.zone
-rw-r----- 1 root named 427 Dec 2 2010 named.broadcast
-rw-r----- 1 root named 1892 Dec 2 2010 named.ca
-rw-r----- 1 root named 424 Dec 2 2010 named.ip6.local
-rw-r----- 1 root named 426 Dec 2 2010 named.local
-rw-r----- 1 root named 427 Dec 2 2010 named.zero
-rw-r----- 1 root named 953 May 11 12:59 rev.zone
drwxrwx--- 2 named named 4096 Jul 27 2004 slaves
Orignal “/var/named/chroot/var/named/for.zone”file:
[root@paw-racstorage-dns named]# cat for.zone
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS localhost.
1 IN PTR localhost.
Modifed “/var/named/chroot/var/named/for.zone” file :
[root@paw-racstorage-dns named]# cat for.zone
$TTL 86400
@ IN SOA paw-racstorage-dns.airydba.com. root.paw-racstorage-dns.airydba.com. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS paw-racstorage-dns.airydba.com.
airydba.com. IN A 192.168.75.10
paw-racstorage-dns IN A 192.168.75.10
paw-racnode1 IN A 192.168.75.11
paw-racnode2 IN A 192.168.75.12
paw-racnode3 IN A 192.168.75.13
paw-racnode1-priv IN A 10.0.0.1
paw-racnode2-priv IN A 10.0.0.2
paw-racnode3-priv IN A 10.0.0.3
paw-racnode1-vip IN A 192.168.75.21
paw-racnode2-vip IN A 192.168.75.22
paw-racnode3-vip IN A 192.168.75.23
paw-rac01-scan IN A 192.168.75.101
paw-rac01-scan IN A 192.168.75.102
paw-rac01-scan IN A 192.168.75.103
Orignal “/var/named/chroot/var/named/rev.zone” file:
[root@paw-racstorage-dns named]# cat rev.zone
$TTL 86400
@ IN SOA localhost. root.localhost. (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS localhost.
Modifed “/var/named/chroot/var/named/rev.zone” file:
[root@paw-racstorage-dns named]# cat rev.zone
$TTL 86400
@ IN SOA paw-racstorage-dns.airydba.com. root.paw-racstorage-dns.airydba.com. (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS paw-racstorage-dns.airydba.com.
10 IN PTR paw-racstorage-dns.airydba.com.
11 IN PTR paw-racnode1.airydba.com.
12 IN PTR paw-racnode2.airydba.com.
13 IN PTR paw-racnode3.airydba.com.
21 IN PTR paw-racnode1-vip.airydba.com.
22 IN PTR paw-racnode2-vip.airydba.com.
23 IN PTR paw-racnode3-vip.airydba.com.
101 IN PTR paw-rac01-scan.airydba.com.
102 IN PTR paw-rac01-scan.airydba.com.
103 IN PTR paw-rac01-scan.airydba.com.
Orignal “/etc/resolv.conf” file :
[root@paw-racstorage-dns named]# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
search localdomain
nameserver 192.168.75.2
Modified “/etc/resolv.conf” file :
[root@paw-racstorage-dns named]# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
search airydba.com
nameserver 192.168.75.10
Orignal “/etc/hosts” file :
[root@paw-racstorage-dns named]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 paw-racstorage-dns.airydba.com paw-racstorage-dns localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
Modified “/etc/hosts” file :
[root@paw-racstorage-dns named]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
Work To be performed on all Nodes (paw-racnode1,paw-racnode2,paw-racnode3):
Orignal “/etc/resolv.conf” file :
[root@paw-racstorage-dns named]# cat /etc/resolv.conf
search localdomain
nameserver 192.168.75.2
Modified “/etc/resolv.conf” file :
[root@paw-racnode1 named]# cat /etc/resolv.conf
search airydba.com
nameserver 192.168.75.10
Orignal “/etc/hosts” file :
[root@ paw-racnode1 named]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 paw-racnode1.airydba.com paw-racnode1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
Modified “/etc/hosts” file :
[root@ paw-racnode1 named]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
DNS Testing :
[root@paw-racstorage-dns named]# ping paw-racstorage-dns
PING paw-racstorage-dns.airydba.com (192.168.75.10) 56(84) bytes of data.
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=1 ttl=64 time=0.014 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=3 ttl=64 time=0.029 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=4 ttl=64 time=0.028 ms
--- paw-racstorage-dns.airydba.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3001ms
rtt min/avg/max/mdev = 0.014/0.025/0.029/0.006 ms
[root@paw-racstorage-dns named]# ping paw-racnode1
PING paw-racnode1.airydba.com (192.168.75.11) 56(84) bytes of data.
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=1 ttl=64 time=0.659 ms
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=2 ttl=64 time=0.238 ms
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=3 ttl=64 time=0.245 ms
--- paw-racnode1.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.238/0.380/0.659/0.198 ms
[root@paw-racstorage-dns named]# ping paw-racnode2
PING paw-racnode2.airydba.com (192.168.75.12) 56(84) bytes of data.
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=1 ttl=64 time=1.13 ms
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=2 ttl=64 time=0.235 ms
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=3 ttl=64 time=0.227 ms
--- paw-racnode2.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.227/0.532/1.135/0.426 ms
[root@paw-racstorage-dns named]# ping paw-racnode3
PING paw-racnode3.airydba.com (192.168.75.13) 56(84) bytes of data.
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=1 ttl=64 time=1.14 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=2 ttl=64 time=0.229 ms
--- paw-racnode3.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.229/0.688/1.147/0.459 ms
[root@paw-racstorage-dns named]# dig -x 192.168.75.10
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x 192.168.75.10
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44221
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;10.75.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
10.75.168.192.in-addr.arpa. 86400 IN PTR paw-racstorage-dns.airydba.com.
;; AUTHORITY SECTION:
75.168.192.in-addr.arpa. 86400 IN NS paw-racstorage-dns.airydba.com.
;; ADDITIONAL SECTION:
paw-racstorage-dns.airydba.com. 86400 IN A 192.168.75.10
;; Query time: 0 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:39:53 2016
;; MSG SIZE rcvd: 118
[root@paw-racstorage-dns named]# dig -x 192.168.75.11
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x 192.168.75.11
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5827
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;11.75.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
11.75.168.192.in-addr.arpa. 86400 IN PTR paw-racnode1.airydba.com.
;; AUTHORITY SECTION:
75.168.192.in-addr.arpa. 86400 IN NS paw-racstorage-dns.airydba.com.
;; ADDITIONAL SECTION:
paw-racstorage-dns.airydba.com. 86400 IN A 192.168.75.10
;; Query time: 0 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:42:10 2016
;; MSG SIZE rcvd: 131
[root@paw-racstorage-dns named]# dig -x 192.168.75.12
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x 192.168.75.12
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34370
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;12.75.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
12.75.168.192.in-addr.arpa. 86400 IN PTR paw-racnode2.airydba.com.
;; AUTHORITY SECTION:
75.168.192.in-addr.arpa. 86400 IN NS paw-racstorage-dns.airydba.com.
;; ADDITIONAL SECTION:
paw-racstorage-dns.airydba.com. 86400 IN A 192.168.75.10
;; Query time: 0 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:42:16 2016
;; MSG SIZE rcvd: 131
[root@paw-racstorage-dns named]# dig -x 192.168.75.13
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x 192.168.75.13
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38759
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;13.75.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
13.75.168.192.in-addr.arpa. 86400 IN PTR paw-racnode3.airydba.com.
;; AUTHORITY SECTION:
75.168.192.in-addr.arpa. 86400 IN NS paw-racstorage-dns.airydba.com.
;; ADDITIONAL SECTION:
paw-racstorage-dns.airydba.com. 86400 IN A 192.168.75.10
;; Query time: 0 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:42:18 2016
;; MSG SIZE rcvd: 131
[root@paw-racstorage-dns named]# dig -x paw-racstorage-dns
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x paw-racstorage-dns
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 31271
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;paw-racstorage-dns.in-addr.arpa. IN PTR
;; Query time: 30 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:40:29 2016
;; MSG SIZE rcvd: 49
[root@paw-racstorage-dns named]# dig -x paw-racstorage-dns.airydba.com
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x paw-racstorage-dns.airydba.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 30867
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;com.example.paw-racstorage-dns.in-addr.arpa. IN PTR
;; Query time: 4 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:40:43 2016
;; MSG SIZE rcvd: 61
[root@paw-racstorage-dns named]# dig -x paw-racnode1
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x paw-racnode1
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 36154
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;paw-racnode1.in-addr.arpa. IN PTR
;; Query time: 5 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:41:16 2016
;; MSG SIZE rcvd: 43
[root@paw-racstorage-dns named]# dig -x paw-racnode2
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x paw-racnode2
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 2062
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;paw-racnode2.in-addr.arpa. IN PTR
;; Query time: 4 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:41:20 2016
;; MSG SIZE rcvd: 43
[root@paw-racstorage-dns named]# dig -x paw-racnode3
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> -x paw-racnode3
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 19888
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;paw-racnode3.in-addr.arpa. IN PTR
;; Query time: 4 msec
;; SERVER: 192.168.75.10#53(192.168.75.10)
;; WHEN: Wed May 11 16:41:23 2016
;; MSG SIZE rcvd: 43
[root@paw-racstorage-dns named]# nslookup paw-racstorage-dns.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racstorage-dns.airydba.com
Address: 192.168.75.10
[root@paw-racstorage-dns named]# nslookup paw-racstorage-dns
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racstorage-dns.airydba.com
Address: 192.168.75.10
[root@paw-racstorage-dns named]# nslookup paw-racnode1.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode1.airydba.com
Address: 192.168.75.11
[root@paw-racstorage-dns named]# nslookup paw-racnode1
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode1.airydba.com
Address: 192.168.75.11
[root@paw-racstorage-dns named]# nslookup paw-racnode2.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode2.airydba.com
Address: 192.168.75.12
[root@paw-racstorage-dns named]# nslookup paw-racnode3
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode3.airydba.com
Address: 192.168.75.13
[root@paw-racstorage-dns named]# nslookup paw-racnode1-priv.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode1-priv.airydba.com
Address: 10.0.0.1
[root@paw-racstorage-dns named]# nslookup paw-racnode2-priv.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode2-priv.airydba.com
Address: 10.0.0.2
[root@paw-racstorage-dns named]# nslookup paw-racnode3-priv.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode3-priv.airydba.com
Address: 10.0.0.3
[root@paw-racstorage-dns named]# nslookup paw-racnode1-vip.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode1-vip.airydba.com
Address: 192.168.75.21
[root@paw-racstorage-dns named]# nslookup paw-racnode2-vip.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode2-vip.airydba.com
Address: 192.168.75.22
[root@paw-racstorage-dns named]# nslookup paw-racnode3-vip.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-racnode3-vip.airydba.com
Address: 192.168.75.23
[root@paw-racstorage-dns named]# nslookup paw-rac01-scan.airydba.com
Server: 192.168.75.10
Address: 192.168.75.10#53
Name: paw-rac01-scan.airydba.com
Address: 192.168.75.101
Name: paw-rac01-scan.airydba.com
Address: 192.168.75.102
Name: paw-rac01-scan.airydba.com
Address: 192.168.75.103
========================================================================
Checking on paw-racnode1 :
[root@paw-racnode1 ~]# ping paw-racstorage-dns
PING paw-racstorage-dns.airydba.com (192.168.75.10) 56(84) bytes of data.
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=1 ttl=64 time=0.172 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=2 ttl=64 time=0.217 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=3 ttl=64 time=0.236 ms
--- paw-racstorage-dns.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 0.172/0.208/0.236/0.029 ms
[root@paw-racnode1 ~]# ping paw-racnode1
PING paw-racnode1.airydba.com (192.168.75.11) 56(84) bytes of data.
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=1 ttl=64 time=0.019 ms
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=3 ttl=64 time=0.030 ms
--- paw-racnode1.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.019/0.026/0.030/0.005 ms
[root@paw-racnode1 ~]# ping paw-racnode2
PING paw-racnode2.airydba.com (192.168.75.12) 56(84) bytes of data.
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=1 ttl=64 time=1.44 ms
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=2 ttl=64 time=0.529 ms
--- paw-racnode2.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.529/0.986/1.444/0.458 ms
You have new mail in /var/spool/mail/root
[root@paw-racnode1 ~]# ping paw-racnode3
PING paw-racnode3.airydba.com (192.168.75.13) 56(84) bytes of data.
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=1 ttl=64 time=0.754 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=2 ttl=64 time=0.217 ms
--- paw-racnode3.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.217/0.485/0.754/0.269 ms
[root@paw-racnode1 ~]# ping paw-racnode1-priv
PING paw-racnode1-priv.airydba.com (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=1.25 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.163 ms
--- paw-racnode1-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.163/0.708/1.253/0.545 ms
[root@paw-racnode1 ~]# ping paw-racnode2-priv
PING paw-racnode2-priv.airydba.com (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=1.25 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.236 ms
--- paw-racnode2-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.236/0.745/1.255/0.510 ms
[root@paw-racnode1 ~]# ping paw-racnode3-priv
PING paw-racnode3-priv.airydba.com (10.0.0.3) 56(84) bytes of data.
64 bytes from 10.0.0.3: icmp_seq=1 ttl=64 time=0.018 ms
64 bytes from 10.0.0.3: icmp_seq=2 ttl=64 time=0.026 ms
--- paw-racnode3-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.018/0.022/0.026/0.004 ms
========================================================================
Checking on paw-racnode2 :
[root@paw-racnode2 ~]# ping paw-racstorage-dns
PING paw-racstorage-dns.airydba.com (192.168.75.10) 56(84) bytes of data.
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=1 ttl=64 time=0.181 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=2 ttl=64 time=0.517 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=3 ttl=64 time=0.219 ms
--- paw-racstorage-dns.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.181/0.305/0.517/0.151 ms
[root@paw-racnode2 ~]# ping paw-racnode1
PING paw-racnode1.airydba.com (192.168.75.11) 56(84) bytes of data.
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=1 ttl=64 time=1.58 ms
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=2 ttl=64 time=0.159 ms
64 bytes from paw-racnode1.airydba.com (192.168.75.11): icmp_seq=3 ttl=64 time=0.199 ms
--- paw-racnode1.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.159/0.649/1.589/0.664 ms
[root@paw-racnode2 ~]# ping paw-racnode2
PING paw-racnode2.airydba.com (192.168.75.12) 56(84) bytes of data.
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=1 ttl=64 time=0.017 ms
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=2 ttl=64 time=0.028 ms
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=3 ttl=64 time=0.031 ms
--- paw-racnode2.airydba.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.017/0.025/0.031/0.007 ms
[root@paw-racnode2 ~]# ping paw-racnode3
PING paw-racnode3.airydba.com (192.168.75.13) 56(84) bytes of data.
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=1 ttl=64 time=1.66 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=2 ttl=64 time=0.217 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=3 ttl=64 time=0.219 ms
--- paw-racnode3.airydba.com ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5001ms
rtt min/avg/max/mdev = 0.151/0.447/1.668/0.546 ms
[root@paw-racnode2 ~]# ping paw-racnode1-priv
PING paw-racnode1-priv.airydba.com (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=1.25 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.163 ms
--- paw-racnode1-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.163/0.708/1.253/0.545 ms
[root@paw-racnode2 ~]# ping paw-racnode2-priv
PING paw-racnode2-priv.airydba.com (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=1.25 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.236 ms
--- paw-racnode2-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.236/0.745/1.255/0.510 ms
[root@paw-racnode2 ~]# ping paw-racnode3-priv
PING paw-racnode3-priv.airydba.com (10.0.0.3) 56(84) bytes of data.
64 bytes from 10.0.0.3: icmp_seq=1 ttl=64 time=0.018 ms
64 bytes from 10.0.0.3: icmp_seq=2 ttl=64 time=0.026 ms
--- paw-racnode3-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.018/0.022/0.026/0.004 ms
========================================================================
Checking on paw-racnode3 :
[root@paw-racnode3 ~]# ping paw-racstorage-dns
PING paw-racstorage-dns.airydba.com (192.168.75.10) 56(84) bytes of data.
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=1 ttl=64 time=0.109 ms
64 bytes from paw-racstorage-dns.airydba.com (192.168.75.10): icmp_seq=2 ttl=64 time=0.221 ms
--- paw-racstorage-dns.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.109/0.165/0.221/0.056 ms
[root@paw-racnode3 ~]# ping paw-racnode1
PING paw-racnode1.airydba.com (127.0.0.1) 56(84) bytes of data.
64 bytes from paw-racnode1.airydba.com (127.0.0.1): icmp_seq=1 ttl=64 time=0.022 ms
64 bytes from paw-racnode1.airydba.com (127.0.0.1): icmp_seq=2 ttl=64 time=0.027 ms
--- paw-racnode1.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.022/0.024/0.027/0.005 ms
[root@paw-racnode3 ~]# ping paw-racnode2
PING paw-racnode2.airydba.com (192.168.75.12) 56(84) bytes of data.
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=1 ttl=64 time=0.725 ms
64 bytes from paw-racnode2.airydba.com (192.168.75.12): icmp_seq=2 ttl=64 time=0.227 ms
--- paw-racnode2.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.227/0.476/0.725/0.249 ms
[root@paw-racnode3 ~]# ping paw-racnode3
PING paw-racnode3.airydba.com (192.168.75.13) 56(84) bytes of data.
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=1 ttl=64 time=0.017 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=2 ttl=64 time=0.026 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=3 ttl=64 time=0.028 ms
64 bytes from paw-racnode3.airydba.com (192.168.75.13): icmp_seq=4 ttl=64 time=0.027 ms
--- paw-racnode3.airydba.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
rtt min/avg/max/mdev = 0.017/0.024/0.028/0.006 ms
[root@paw-racnode3 ~]# ping paw-racnode1-priv
PING paw-racnode1-priv.airydba.com (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=1.25 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.163 ms
--- paw-racnode1-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.163/0.708/1.253/0.545 ms
[root@paw-racnode3 ~]# ping paw-racnode2-priv
PING paw-racnode2-priv.airydba.com (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=1.25 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.236 ms
--- paw-racnode2-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.236/0.745/1.255/0.510 ms
[root@paw-racnode3 ~]# ping paw-racnode3-priv
PING paw-racnode3-priv.airydba.com (10.0.0.3) 56(84) bytes of data.
64 bytes from 10.0.0.3: icmp_seq=1 ttl=64 time=0.018 ms
64 bytes from 10.0.0.3: icmp_seq=2 ttl=64 time=0.026 ms
--- paw-racnode3-priv.airydba.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.018/0.022/0.026/0.004 ms
Thank you for reading… This is Airy…Enjoy Learning
#dns, #rac
Airydba Blog Notes 