RE: IOS DNS

Dns sounds like a lot of work Brian...

Why can't people just remember the IPv4 address to their favorite sites???

According to Arin, there are only 4 Billion of them!

:)

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Brian McGahan
Sent: Friday, February 15, 2013 12:35 PM
To: Imran Ali; Cisco certification
Subject: RE: IOS DNS

The vast majority of DNS servers on the Internet run BIND. If you want to learn how the details of how DNS works, learn how BIND works. A good book on this is aptly named "DNS and BIND"

http://www.amazon.com/DNS-BIND-5th-Edition-Cricket/dp/0596100574/ref=sr_1_1?ie=UTF8&qid=1360948605&sr=8-1&keywords=bind

You of course don't need to know this level of how DNS works for the CCIE R&S Lab Exam, but it can't hurt for your day-to-day engineering. There's lots of neat tricks happening nowadays with DNS for things like anycast global load balancing for content networks and DDoS protection.

There are also dedicated platforms that interact with DNS for these advanced applications such as Cisco's Global Site Selector (GSS) - http://www.cisco.com/go/gss - or F5's Global Traffic Manager (GTM) - http://www.f5.com/products/big-ip/big-ip-global-traffic-manager/overview/

DNS in and of itself is a specialized field, and many engineer's full time jobs are just to design/implement/admin DNS solutions.

HTH,

Brian McGahan, CCIE #8593 (R&S/SP/Security) bmcgahan_at_INE.com
 
Internetwork Expert, Inc.
http://www.INE.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Imran Ali
Sent: Friday, February 15, 2013 3:43 AM
To: Cisco certification
Subject: IOS DNS

Hi all,

comming from routing and switching background ,it is taking some time to get IOS DNS stuff.

Any good generic DNS links you have ? even though i am googleing ...(authorative DNS , zones, RRs , DDNS ,etc )

Blogs and organic groups at http://www.ccie.net
Received on Fri Feb 15 2013 - 19:03:27 ART