building ipv6 dns server (draft copy for 3rd seminar)

8/14/2019 Building IPv6 DNS Server (Draft copy for 3rd Seminar)

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OVERVIEW OF THE PROJECT

The project mainly deals with creating a Dual IP stack node with

provision of complete support for both IPV4 and IPV6 in hosts and servers.

This can be achieved by making a recursive copy of the kernel and

configuring the necessary network properties to support both IPv4 and IPv6.

The kernel is configured by using scripts in shell programming and C

programming.

The main idea of the project is configure a DNS server in Linux with

IPv6 name resolution facility. The concept of encapsulation of IPv6 packets

within IPv4 headers to carry then an IPv4 network simply called as IPv6

over IPv4 tunneling.

PROBLEM DEFINITION

LINUX kernels up to 2.3 do not support the incorporation of IPv6 into

it. Hence to build a kernel which has provision for both IPv4 and IPv6 we

use kernel version 2.4. In this project, we look closely at IPv6 name

resolution and provide technical support to help the user set up, their own

IPv6 Linux DNS server to allow IPv6 name resolution using the latest

version of BIND Configuration tool.

EXISTING SYSTEM

The existing IPv4 system supports DNS configuration in Linux 9 and

its prior versions. The graphical tool BIND 9 and prior versions support

DNS configuration of IPv4. The kernel version 2.4 and prior versions

support IPv4 DNS configuration. The BIND tool was introduced to


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configure the IPv4 DNS after Linux 6. The existing system namely linux8,

BIND 8 does not support IPv6 configurations.

PROPOSED SYSTEM

The proposed system is aimed at removing the drawbacks of the

existing system. Our dual stack server can easily help a user to give IPv6

support to the Linux system.

The project has configurations and tunneling is established through

coding written in JAVA. Also, the packets are transferred from client to the

server using the code.

OUR PROJECT MODULES

Our Project is divided into five Modules

Module 1

Kernel Compilation and Creation of Patch Work.

Module 2

DNS Configuration Settings by editing the /etc directories.

Module 3

Establishing Connection between Client and Server through

Sockets.

Module 4

Cross Platform Resource Access.

Module 5

Testing our Project into System Testing.


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THE BOTTOMLINE OF THE PROJECT

At Present situation, suddenly we cant change the entire IPv4

network into IPv6 network. Thats why we chose to select the concept of IP

v6 over IPv4 Tunneling. The above diagram represents the Bottom line of

the Project that resolves the name and IP address for both IPv6 and IPv4

components. The main concept involved in our Project IPv6 over IPv6

Tunneling. The principal function for this concept is encapsulating the IPv6

packets within IPv4 packets.

IPV6 FEATURES

Increased address space

128 bits = 340 trillion trillion trillion addresses

(2

128

=340,282,366,920,938,463,463,374,607,431,768,211,456) = 67 billion billion addresses per cm2 of the planet surface

Hierarchical address architecture

Improved address aggregation

More efficient header architecture


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Neighbor discovery and autoconfiguration

Improved operational efficiency

Easier network changes and renumbering

Simpler network applications (Mobile IP)

Integrated security features

LINUX A QUICK TOUR

LINUX is a free, UNIX work-alike designed for Intel processors on

personal computer. Linux is not UNIX, as UNIX is a copyrighted piece of

software that demands license fees when any part of its source code is used.

LINUX was written from scratch to avoid license fees entirely, although the

operating system is based on UNIXs command set and look-feel, so if you

know either UNIX or Linux, you know the other too.

DNS IN NUT SHELL

DNS is the Domain Name System.

It translates (or "maps" as the jargon would have it) from name to

address and from address to name, and some other things.

Allow machines to be logically grouped by nameDomains.

Provides email routing Information.

Forward Lookup

Resolves Hostname into IP address.

Reverse Lookup

Resolves IP address into Host Name.

DNS SERVER FUNCTIONS


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Internet Domain Support

- Accessing servers through remote network.

Local Name Resolution

- Resolve the hostnames of systems on your LAN.

Internet Name Resolution

- Most often used for this is the ISP's DNS servers.

SERVICE PROFILE :DNS

Type : System V-Managed Service

Packages : bind, bind-utils

Daemons : named, rndc

Script : named

Ports : 53(domain), 953(rndc)

Configs : /etc/named.conf,

/var/named/*

/etc/rndc.*

CONCLUSION


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Our Project would resolve both IPv4 and IPv6 names, since we have

created a dual stack which supports both kinds of name resolution. The

project also includes the tunneling mechanism through name resolution by

the code developed in JAVA.

Though the system has been successfully working with the currently

developed modules, it is planned to upgrade the system to accommodate the

IPv6 name server too. These ideas are under consideration and ground work

for further development is on.

These are the Pointers that we have chosen IPv6 as academic Project.

IPv6 is a key cutting Edge Technology

Top 4th Technology all around the world

Source: (EFY Magazine December 2005)

Top 6th Technology from Computer Networks

Source: Network Magazine

Long-term solution, Scalable, Reliable, Manageable

Secure and High-performance IP networks.

SCOPE OF FUTURE ENHANCEMENT

The Future Enhancement for our project involves:

Implementation of IPv6 Name Server.

Implementation of DHCP Name Server.

Implementation of SAMBA Server.


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REFERENCE

Supported R FCs For Our Project

The Supported RFCs for our projects are

RFC1886: DNS extension for IPv6

RFC2373: IPv6 addressing architecture

RFC2428: FTP extensions for IPv6 & NATs

RFC2452: IPv6 MIB: TCP

RFC2463: ICMP for IPv6

RFC2464: IPv6 over ethernet

RFC2466: IPv6 MIB: ICMP

RFC2553: Basic socket API for IPv6

Books Referred

1. M.Beck, H.Bome, M, Dziadzka, U.Kunitz, R.Manus, D,Verwomer

LINUX Kernal Internets Addison Wesley Longman (singaporie ) pte

Ltd . Indian Branch 482 FIE patparaganj , Delhi -110092

2. Craig Hunt Linux Network Servers BPB publications , B-14

connaught place, New Delhi-01

3. Kerry Cox Red Hat Linux administrators guide Prentice Hall of

India pte Ltd, New Delhi -01

4. Christopher Negus Red Hat Linux 9 Bible WILEY dreamtech

India pvt Ltd, New Delhi-01


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5. Douglas E.Comer Internetworking with TCP/IP forth edition,

Pearson Education pte Ltd, New Delhi-92

Websites

1. www.ietf.org

2. www.6bone.net

3. www.IPv6forum.com

4. www.linuxkernel.org

5. www.sourceforge.net

6. www.ipv6.org

7. www.linux.org

8. www.linuxquestions.org

9. www.desktoplinux.com

10. www.realvnc.com

building ipv6 dns server (draft copy for 3rd seminar)

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