Network security
Everything I've written on network security, with the research pieces first. Each one ends with something you can do on Monday.
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What's in a five-angle short
Most subjects here are one page with five short sections, always in this order. Each has its own colour inside the article so you can jump to the one you need.
- 1Where I'd start: the first move I'd make, and the question I'd ask before spending anything.
- 2Where plans fail: where plans on this subject usually break, and the assumption I'd test first.
- 3Beyond the jargon: what the subject actually means once the vendor language is stripped out.
- 4What good looks like: the result that would tell you it worked, and the number I'd watch.
- 5The call leaders can't dodge: the decision leadership has to own, and what it needs on the table to make it.
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How Do You Test DNS Failover Before a Recovery Cutover?
Test DNS failover across caches, private zones, DNSSEC and application connections before declaring a disaster recovery site ready for traffic.
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DDoS resilience
I would not begin DDoS resilience by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one scenar...
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DNS security
I would not begin DNS security by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one scenario ...
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Firewall rule governance
I would not begin firewall rule governance by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and o...
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Network incident response
I would not begin network incident response by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and ...
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Network segmentation
I would not begin network segmentation by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one s...
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Network telemetry
I would not begin network telemetry by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one scen...
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Remote access security
I would not begin remote access security by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one...
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Routing trust
I would not begin routing trust by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one scenario...
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Secure network architecture
I would not begin secure network architecture by buying another platform or launching a large programme. I would find the boundary, the accountable owner, an...
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Wireless security
I would not begin wireless security by buying another platform or launching a large programme. I would find the boundary, the accountable owner, and one scen...
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Your network is flat. Here's what that costs you
Flat networks are the default because they're easy. Everything can talk to everything, nothing breaks, and the diagram fits on one page. The cost shows up on...
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