GCP, and Regaining Trust

Google is telling us they’re serious about the cloud. They’re hiring the right people, spending the big bucks, and even (gasp!) talking to customers! (Oh how that must stick in their craw). They have great technology, they’ve proved it out at scale, and the price is right. There’s just one nagging doubt in the back […]

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Networking’s not so bad

Ivan’s post this week was a good reminder that other parts of IT aren’t perfect either. It’s not all roses on the other side of the fence. Networking has done many good things, and often showed the way. Consider a conversation between a sysadmin & a network engineer: Look at how I can virtualise these […]

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War Stories: Backup NICs, DNS and AD

A return to our sporadic series of networking war stories. This time it’s fun with dedicated backup networks, DNS auto-registration, and Active Directory. Thank God it’s a lot easier these days with virtualisation. But back then… Backups suck, but you need to do them somehow Back in the olden days we had a dedicated tape […]

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Efficiency vs Effectiveness

I’ve been wondering about how we’re approaching networking change. We know we need to make things better. Are we changing the ‘right’ things? I’ve got a feeling that we’re not, but I suspect that we’re too constrained by higher-order systems. Simon Wardley wrote a great post on Efficiency vs Effectiveness. He gave a slightly contrived […]

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Help! My Boss is Scared of Automation!!!

A reader asked “What can I do if my boss won’t let me automate my tasks?” Sadly some people still have a fear of automating even common, well-understood tasks. They’re worried about automation run amok. They think it’s safer to have a human typing in commands. But you know better. Humans have a place. But that place is not […]

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Learning to Love Codenames

One of the things I struggled with when starting at a vendor was dealing with project codenames. There is no secret decoder ring – you have to learn the names the hard way. I couldn’t understand why descriptive names weren’t used. It took a while, but I’ve come to understand the reasoning behind the obscure names […]

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Modifying Packet Captures with tcprewrite

Recently I wanted to look at the structure of sFlow packets. Of course I can read the specs, but it’s often easier to look at some real packets. So I set up a simple network, configured sFlow, created some traffic across the network, and used tcpdump to capture the sFlow packets. Unfortunately I had a bit of a brain […]

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NZ IPv6 & DNSSEC Update

A year ago I published a table of New Zealand ISP IPv6 support. At the time support was fairly poor. I’m pleased to report that things have gotten better over the last year. There has also been a very pleasing uptick in DNSSEC support. IPv6 Changes The big movers here are Trustpower & Orcon, who have both […]

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Brocade VDX SNMP Changes

Brocade tightened up some SNMP settings with NOS 6.0.x. This improves security, but it also means that you will need to modify your configuration if you upgrade. If you don’t, SNMP won’t work, and you’ll get errors with BNA/Nagios/Cacti/etc. Here’s the changes, and how to get SNMP working with NOS 6.0.x. NB This applies to […]

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