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An inside job: how DNS firewalls protect your network.

By Tim Rooney, Director of Product Management, Diamond IP, BT.

Internet firewalls work as a perimeter fence to keep your network safe. But a Domain Name System (DNS) firewall goes one step further — combating internal threats, too.

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Ask a question, get an answer. How insecure can that be? Part three.

By Tim Rooney, Diamond IP Product Management Director, BT.

In the last of his series on security and DNS, Tim Rooney takes a look at the tools you need to stay truly secure.

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Taking the chore out of choice.

Updating your voice network will save you money and make things simpler. But, ironically, choosing those suppliers and sorting everything out is often really complicated. [Read more…]

Ask a question, get an answer. How insecure can that be? Part two.

By Tim Rooney, Diamond IP Product Management Director, BT.

The vulnerabilities on legitimate queries, and how various strategies can mitigate them. [Read more…]

tim-rooney-guest-blogger

Ask a question, get an answer. How insecure can that be? Part one.

By Tim Rooney, Diamond IP Product Management Director, BT.

In the first of three blogs on security, Tim Rooney lays out the facts about DNS and why it could be a weakness in your cyber defences. [Read more…]