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Configure Caching Name Server on CentOS 6

Configure Caching Name Server on CentOS 6

A caching only DNS server caches DNS query results for the domain name being queried. These chache are stored for pre specified time known as the TTL ( time-to-live )

Step 1: Install the BIND Packages using Yum

Install bind packages using below command. In CentOS/RHEL 6 chaching-nameserver […]

Check DNS Configuration file ( BIND )

named-checkconf checks the syntax only of a named ( bind ) configuration file. The file is parsed and checked for syntax errors, along with all files included by it. If there are no file is specified with command, /etc/named.conf is read by default.

Tip 1: Check your dns ( bind ) configuration .

In case […]

Master Slave DNS Server on CentOS 6 and RHEL

How to Setup Master Slave DNS Server on CentOS 6 and RHEL

The DNS ( Domain Name System ) is a distributed system, used for transalate domain names to IP and vice a versa. This article will help you to How to Setup Master Slave DNS Server on CentOS 6 and RHEL Systems.

Network Scenario […]

Bind Chroot

Setup DNS Server step by step in CentOS 6.3 / RHEL 6.3

DNS (Domain Name System) is the core component of network infrastructure. The DNS service resolves hostname into ip address and vice versa. For example if we type in browser, the DNS server translates the domain name into its corresponding ip address. So […]

DjbDNS DNS Server On CentOS

djbDNS DNS Server On CentOS

What is djbDNS? And why do we use djbDNS? There is a new point of view to serve the dns service – each of the dns server functionalities is a separate service, like authority, cache, forward and so on.

The other difference is the daemon-tools which will rapidly restart […]

LVM Basics

Dependencies needed:Kernel module (version 2.6.9+):Device Drivers > Multi-device support (RAID and LVM) > Device Mapper Support (CONFIG_BLK_DEV_DM)Associated kernel module:dm_mod

Package:lvm2 – lvm toolslibdevmapper

Show LVM version:lvm version

Create the physical disks:pvcreate /dev/hdapvcreate /dev/hdbpvcreate /dev/hdc1pvcreate /dev/hdc2

Show allocated Physical volumes:pvscanpvdisplaylvm pvs

Setup a volume group:vgcreate vg_name /dev/hda /dev/hdb /dev/hdc1 /dev/hdc2

Display a volume group:vgdisplaylvm vgs



######################## DNS CONFIGURATION ######## 1. DNS Server Name: ( ; domain: 2. Download and Install Packages related to bind: yum install bind* bind-utils, bind-sdb, bind-libs, bind-9.3, bind-chroot, bind-libbind-devel yum install caching-nameserver 3. Configure : name.conf file ( main configuration file ) cd /var/named/chroot/etc/ cp named.caching-nameserver.conf named.conf vi named.conf options { listen­on port […]

Namebench: cross-platform DNS benchmarking tool

I am talking about Namebench. This is cross platform tool written in Python that makes it possible to easily select the fastest DNS available in your area as well as to run benchmark tests directed to DNS entries.

All what you need to have to start using namebench is Python and Tk library, e.g. if […]

Bind Configuration in Chroot Environment

Bind Configuration in Chroot Environment Wriiten by Babar Zahoor


Pupose: Configuration of DNS (Bind) server in chroot environment.

OS CentOS 5.4 X86_64

————————————- Please Install the bind packages ————————————-

[root@ns1 ~]# yum install bind bind-utils bind-* Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: * extras: * updates: […]