Tag Archives: linux

First thoughts and tips on EL 7

Posted on 2014-08-21 by Jethro Carr

Generally one RHEL/CentOS/Scientific Linux (aka EL) release isn’t radically different to another, however the introduction of EL 7 is a bit of a shake up, introducing systemd, which means new init system, new ways of reading logs plus dropping some … Continue reading →

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Installing EL7 onto EL5 Xen hosts

Posted on 2014-07-21 by Jethro Carr

With RedHat recently releasing RHEL 7 (and CentOS promptly getting their rebuild out the door shortly after), I decided to take the opportunity to start upgrading some of my ageing RHEL/CentOS (EL) systems. My personal co-location server is a trusty … Continue reading →

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Funny tasting Squid Resolver

Posted on 2014-07-05 by Jethro Carr

Squid is a very popular (and time tested) proxy server, it’s generally the go-to solution for a  proxy server in a *nix environment and is capable of providing general caching proxy services (including transparent) as well as more sophisticated reverse … Continue reading →

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Thunderbolt and other Macbook hardware issues with Linux

Posted on 2014-06-16 by Jethro Carr

Having semi-recently switched to a Macbook Pro Retina 15″ at work, I decided to give MacOS a go. It’s been interesting, it’s not too bad an operating system and whilst it is something I could use on an ongoing basis, … Continue reading →

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There are no seasons in the datacenter

Posted on 2014-03-22 by Jethro Carr

I always like reviewing the Munin temperature graphs between my co-located server and my home server, the temperature range fluctuations in non-air conditioned rooms is always quite interesting – as much as 25 degrees Celsius over the course of the … Continue reading →

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The awesome tablet money can’t buy

Posted on 2014-03-15 by Jethro Carr

Most people working in technology and have heard of and formulated some opinion about the Microsoft Surface tablet, now in it’s second generation of hardware. For some it’s a poor attempt to compete with the iPad, for others it’s the … Continue reading →

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Jethro does Mac: Retina Display

Posted on 2014-02-25 by Jethro Carr

With a change in job, I recently shifted from my primary work computer being a Lenovo X1 Carbon running GNU/Linux to using an Apple Macbook Pro Retina 15″ running MacOS. It’s not the first time that I’ve used MacOS as … Continue reading →

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Fedora x86_64 installer hanging on KVM hosts

Posted on 2014-01-26 by Jethro Carr

Had an annoying problem today where a Fedora x86_64 guest wouldn’t install on my CentOS KVM server. Weirdly the i386 version had installed perfectly, but the x86_64 version would repeatedly crash and chew up heaps of CPU at the software … Continue reading →

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linux.conf.au 2014

Posted on 2014-01-13 by Jethro Carr

I’ve just returned from my annual pilgrimage to linux.conf.au, which was held in Perth this year. It’s the first time I’ve been over to West Australia, it’s a whole 5 hour flight from Sydney –  longer than it takes to … Continue reading →

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Encrypting disk on Android 4

Posted on 2013-12-29 by Jethro Carr

Traditional computer operating systems have been around for a while, long enough that concerns around physical security have been well addressed. We understand the value and power that the information on our computers can provide to an attacker, so we … Continue reading →

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