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Tuesday, August 4, 2009

cache.dns

DNS Cache Poisoning Attack the user types a web site into a browser that browser asks the local dns server for the address and takes the user to the desired website. A cache.dns files accommodates data with the IP addresses of all Internet root servers. DNS Cache has a retaining duration time, the time to live (dns ttl) after the TTL has expired it will delete the information. Local dns servers make this process faster for multiple queries they cash addresses so requests don’t go to the Internet every time you make a new request. If the request is not in the Cache the local dns server cashers it them performs forwarding on the request to the Internet root master dns server on the Internet. Internet security and researchers recently found a new method of attack on the open-architecture of the DNS Caching system exploiting its flaws.
By hackers sending a request to the local dns the query is then forwarded to the Internet dns next the attacker then floods the local dns with fake and non-authentic data response. Local dns server finds the malicious site in its cash and forwards the user to the malicious web site. Such attacks are called farming they send people to a site that contain tools for steeling information and putting viruses your computer.
There is a patch that can stop this from happening.
Posted by baguio_city at 12:27 PM
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DNSSEC Deployment Options

Download BIND 9.3.5-P2-W2

BIND 9.3.5-P2-W2

BIND 9.3 is a previous major release. It is still supported, and bug fixes and security fixes will be made available as minor releases. No new features will be added.

Some of the important features of BIND 9 are: •DNS Security ?DNSSEC (signed zones) ?TSIG (signed DNS requests) •IP version 6 ?Answers DNS queries on IPv6 sockets ?IPv6 resource records (AAAA, DNAME, etc.) ?Experimental IPv6 Resolver Library •DNS Protocol Enhancements ?IXFR, DDNS, Notify, EDNS0 ?Improved standards conformance •Views ?One server process can provide multiple "views" of the DNS namespace, e.g. an "inside" view to certain clients, and an "outside" view to others. •Multiprocessor Support •Improved Portability Architecture

Downloading: BIND 9.3.5-P2-W2 Windows XP/2003/2008 Binary Kit
Click here for books on. DNS-&-BIND

Description The fifth edition covers BIND 9.3.2, the most recent release of the BIND 9 series, as well as BIND 8.4.7. BIND 9.3.2 contains further improvements in security and IPv6 support, and important new features such as internationalized domain names, ENUM (electronic numbering), and SPF (the Sender Policy Framework). Whether you're an administrator involved with DNS on a daily basis or a user who wants to be more informed about the Internet and how it works, you'll find that this book is essential reading.

Description The fourth edition of DNS and BIND covers the new 9.1.0 and 8.2.3 versions of BIND as well as the older 4.9 version. There's also more extensive coverage of NOTIFY, IPv6 forward and reverse mapping, transaction signatures, and the new DNS Security Extensions; and a section on accommodating Windows 2000 clients, servers and Domain Controllers.

Description The DNS & BIND Cookbook presents solutions to the many problems faced by network administrators responsible for a name server. This title is an indispensable companion to DNS & BIND, 4th Edition, the definitive guide to the critical task of name server administration. The cookbook contains dozens of code recipes showing solutions to everyday problems, ranging from simple questions, like, "How do I get BIND?" to more advanced topics like providing name service for IPv6 addresses.

Description DNS on Windows Server 20003 is a special Windows-oriented edition of the classic DNS and BIND, updated to document the many changes to DNS, large and small, found in Windows Server 2003. Veteran O'Reilly authors, Cricket Liu, Matt Larson, and Robbie Allen explain the whole system in terms of the new Windows Server 2003, from starting and stopping a DNS service to establishing an organization's namespace in the global hierarchy.

Description This special Windows-oriented edition of the classic DNS and BIND is a guide to one of the Internet's fundamental building blocks: the distributed host information database responsible for translating names into addresses, routing mail, and many other services. Covers server setup and maintenance along with Windows-specific topics like integration between DNS and Active Directory, conversion from BIND to the Microsoft DNS server, and registry settings.

This Open Source Guide is about DNS and (mostly) BIND 9.x on Linux (Fedora Core), BSD's (FreeBSD, OpenBSD and NetBSD) and Windows (Win 2K, XP, Server 2003). It is meant for newbies, Rocket Scientist wannabees and anyone in between. This Guide was born out of our first attempts a number of years ago at trying to install a much needed DNS service on an early Redhat Linux system. We completed the DNS 'rite of passage' and found it a pretty unedifying and pointless experience.

The Concise Guide to DNS and BIND provides you with the technical depth and expert-level information you need to understand and administer DNS and BIND. Domain Name System (DNS) is a distributed Internet directory service. It is used mainly to translate between domain names and IP addresses, and to control Internet email delivery. Most Internet services rely on DNS to work, and if DNS fails, Web sites cannot be located and email delivery stalls. BIND (Berkeley Internet Name Daemon) is an implementation of the Domain Name System (DNS) protocols.

The BIND 9 DNS Administration Reference Book is based on Internet Systems Consortium's BIND 9 documentation including the Administrator Reference Manual (Bv9ARM). In addition to hundreds of improvements (most integrated upstream) and major reorganization of the original documentation, new content, examples, detailed indexing and more cross-referencing were added. This book is an excellent resource which provides a convenient way to find BIND 9 documentation and to learn DNS basics.

Dru Lavigne's new book is simply the best FreeBSD how-to book out there. This book is well written with specific instruction on how to make things work. Make no mistake about it.....Whether you are a novice or a system administrator, you need this book in your library. Unlike other FreeBSD books out there which basically copy the online handbook, Dru Lavigne compiled literally hundreds of FreeBSD tricks in this new book. You won't be disappointed!

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