Infoblox upgrade thwarts DNS attacks

Upgrades designed to better protect DNS servers from cache poisoning and other attacks.

Infoblox Monday announced upgrades across its line of core network services appliances that are designed to better protect DNS servers from cache poisoning and other malicious attacks.

The IP address management vendor upgraded its NIOS operating system with security features that monitor DNS protocol traffic to alert IT managers when an attack is in progress and provide methods to automatically mitigate an attack. To combat the recent vulnerabilities revealed about DNS, Infoblox NIOS Version 4.3r2 includes a DNS firewall feature that Infoblox says will protect servers from potentially malicious activities. NIOS runs on hardware appliances ranging in size and capacity, depending on the environment.

With this release, enterprise network managers can reconfigure internal servers to send recursive queries to the appliances equipped with the DNS firewall capability, which will protect internal systems without causing a reduction in DNS services. Infoblox appliances sit in a data center in front of DNS and DHCP servers in a high-availability pair. The appliances are part of the company's grid technology, which enables enterprise network managers to perform one-to-many upgrades across multiple appliances.

"Despite the patches that have been released to protect against recent DNS vulnerabilities, those are short-term fixes. Recursive queries are the subject of attacks and you simply can't not have them and it is a challenge to keep up with patching multiple systems," says Brett Eldridge, vice president of product management at Infoblox. "By reconfiguring the servers to send those queries to protected appliances, the scope of where someone can attack you is reduced."

The company, which competes with the likes of BlueCat Networks, BT Diamond and MetaInfo, also added a feature that monitors signs, or fingerprints, of the attack. (Compare IP address management products.) With this information, enterprise network managers can more quickly identify similar attacks in the future and take steps, such as limiting traffic to the IP address under attack, to mitigate the risk.

"You can't sit and watch your DNS servers all the time, but with this fingerprint feature, there is earlier indication that you are under attack and measures can be taken," Eldridge says. "These features make it easier to understand when you might be under attack."

NIOS Version 4.3r2 is available across five appliance platforms. Pricing starts at about US$2,500 for the lower-end appliances. The operating system software upgrade is available free of charge to current customers with valid maintenance contracts.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags network securityNetwork managementDNSinfoblox

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Denise Dubie

Network World
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Cathy Giles

Brother MFC-L8900CDW

The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?