How to Install nslookup on CentOS 6.3

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nslookup is part of the bind-utils package. Please note that the host, dig and nslookup are also part of the bind utilities. Without bind-utils package installed, you will get the following error when you try to nslookup any domain:

[[email protected] ~]# nslookup
-bash: nslookup: command not found.3

To install the nslookup in CentOS 6.3, simply run this command :

[[email protected] ~]# yum install bind-utils -y
Loaded plugins: fastestmirror, presto
Loading mirror speeds from cached hostfile
 * base: ossm.utm.my
 * extras: ossm.utm.my
 * updates: ossm.utm.my
CentOS6.3-Repository                                                         | 4.0 kB     00:00 ...
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package bind-utils.i686 32:9.8.2-0.10.rc1.el6_3.2 will be installed
--> Processing Dependency: bind-libs = 32:9.8.2-0.10.rc1.el6_3.2 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Processing Dependency: liblwres.so.80 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Processing Dependency: libisccfg.so.82 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Processing Dependency: libisccc.so.80 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Processing Dependency: libisc.so.83 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Processing Dependency: libdns.so.81 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Processing Dependency: libbind9.so.80 for package: 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686
--> Running transaction check
---> Package bind-libs.i686 32:9.8.2-0.10.rc1.el6_3.2 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

====================================================================================================
 Package              Arch           Version                                Repository         Size
====================================================================================================
Installing:
 bind-utils           i686           32:9.8.2-0.10.rc1.el6_3.2              updates           180 k
Installing for dependencies:
 bind-libs            i686           32:9.8.2-0.10.rc1.el6_3.2              updates           882 k

Transaction Summary
====================================================================================================
Install       2 Package(s)

Total download size: 1.0 M
Installed size: 2.7 M
Downloading Packages:
Setting up and reading Presto delta metadata
Processing delta metadata
Package(s) data still to download: 1.0 M
(1/2): bind-libs-9.8.2-0.10.rc1.el6_3.2.i686.rpm                             | 882 kB     00:09
(2/2): bind-utils-9.8.2-0.10.rc1.el6_3.2.i686.rpm                            | 180 kB     00:01
----------------------------------------------------------------------------------------------------
Total                                                                97 kB/s | 1.0 MB     00:10
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : 32:bind-libs-9.8.2-0.10.rc1.el6_3.2.i686                                         1/2
  Installing : 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686                                        2/2
  Verifying  : 32:bind-utils-9.8.2-0.10.rc1.el6_3.2.i686                                        1/2
  Verifying  : 32:bind-libs-9.8.2-0.10.rc1.el6_3.2.i686                                         2/2

Installed:
  bind-utils.i686 32:9.8.2-0.10.rc1.el6_3.2

Dependency Installed:
  bind-libs.i686 32:9.8.2-0.10.rc1.el6_3.2

Complete!

Now you can start use nslookup:

[[email protected] ~]# nslookup
> www.google.com
Server:         8.8.8.8
Address:        8.8.8.8#53

Non-authoritative answer:
www.google.com  canonical name = www.l.google.com.
Name:   www.l.google.com
Address: 209.85.175.147
Name:   www.l.google.com
Address: 209.85.175.103
Name:   www.l.google.com
Address: 209.85.175.104
Name:   www.l.google.com
Address: 209.85.175.105
Name:   www.l.google.com
Address: 209.85.175.106
Name:   www.l.google.com
Address: 209.85.175.99

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