Jeremy Visser — Geek, Sysadmin, Bassoonist on Jeremy Visser
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Electric vehicle charging in Australia is a mess
Exactly a year ago, I bought an electric vehicle, and I’ve driven 18,000 km so far on both short and long trips. I love driving my EV, and it’s absolutely true that you never want to go back to a petrol car after driving one. But we need to talk about paying for charging. Paying…
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On the airwaves
As of this year, I’m now an amateur radio operator! Callsign VK2FAAS (edit: now VK2JEZ as of August 2020), foundation licence. It’s something I’ve always had an interest in doing. As a kid, I had some toy 27 MHz radios with barely 20 metres of range. Then, I got a job working as…
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Floppy drive music
Some time in 2013 I set up a rig to play music with a set of floppy drives. At linux.conf.au 2015 in Auckland I gave a brief lightning talk about this, and here is a set of photos and some demo music to accompany. The hardware consists of six 3.5″ floppy drives connected to a…
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One week with the Nexus 5
My ageing Motorola Milestone finally received a kick to the bucket last week when my shiny new Nexus 5 phone arrived. Though fantastic by 2009 standards, the Milestone could only officially run Android 2.2, and 2.3 with the help of an unofficial CyanogenMod port. Having been…
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Configuring Windows for stable IPv6 addressing
By default, Windows will use randomised IPv6 addresses, rather than using stable EUI-64 addresses derived from the MAC address. This is great for privacy, but not so great for servers that need a stable address. If you run an Exchange mail server, or need to be able to access…
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iPads as in-flight entertainment
I’m writing this whilst sitting on a Qantas flight from Perth to Sydney, heading home after attending the fantastic linux.conf.au 2014 . The plane is a Boeing 767, and unlike most flights I have been on in the last decade, this one has no in-flight entertainment system built…
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SPA525G with ASA 9.1.x
At work, we have a staff member who has a Cisco SPA525G phone at his home that has built-in AnyConnect VPN support. Over the weekend, I updated our Cisco ASA firewall (which sits in front of our UC500 phone system) from version 8.4.7 to 9.1.3 and the phone broke with the odd…
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Restore ASA 5500 configuration from blank slate
The [Cisco ASA 5500 series][1] (e.g. 5505, 5510) firewalls have a fairly nice GUI interface called [ASDM][2]. It can sometimes be a pain, but it could be a lot worse than it is. One of the nice things ASDM does it let you save a .zip file backup of your entire ASA configuration.…
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ABC iview and the ‘Australia tax’
Unless you have been living in a cave, it is probable that you heard about a federal parliamentary inquiry into IT pricing (somewhat aptly entitled “At what cost? — IT pricing and the Australia tax” ) which reported that, amongst other things, online geo-blocking can as much as…
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We do not tolerate bugs; they are of the devil
I was just reading an article entitled “Nine traits of the veteran network admin” , and this point really struck a chord with me: Veteran network admin trait No. 7: We do not tolerate bugs; they are of the devil On occasion, conventional troubleshooting or building new networks…