"Can you clarify what fixes are being implemented to the DNS system (via DNSSEC) to make it more secure? Do enterprises need to take any action in turn or will these DNS security improvements be transparent?
Attackers sometimes attempt to manipulate DNS records through
cache-poisoning attacks that insert malicious false DNS records into a server. Attackers hope these records will be distributed to client machines, which will then unknowingly guide users to malicious webpages.
Until recently, there was little that could be done on the client side to defend against this type of attack. But the release of the
DNS Security Extensions (DNSSEC) changes that, allowing for the application of digital signature technology to DNS records, and providing the end user with assurance that the record is authentic.
The idea to secure DNS has been around for over a decade, but it took time to work out the details, and adoption has been quite slow. Over the past year, the idea picked up some steam, especially after the publicity surrounding the
DNS vulnerabilities that Dan Kaminsky announced at 2010 Black Hat Briefings conference. Major network and hosting providers such as
Comcast and
GoDaddy have joined the federal government in deploying DNSSEC.
If you want to get started with a
DNSSEC implementation"
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