Month: September 2016

In my position I often get to play with different sorts of hardware, but occasionally I get multiple of the same product to deploy. In these instances I have to become intimately familiar with the product so that I can best support users and manage deployments, both standard and non-standard. I’ve recently begun rolling out Dell Latitude e7470’s at Royal Holloway, and thought I would share some of what I’ve discovered. Continue reading “Dell Latitude e7470”

Following on from a rather old guide that I wrote about how to create a OS X Mountain Lion USB Stick, I thought I would share the latest method for creating a macOS Sierra USB Stick. Continue reading “Building an macOS Sierra USB Stick”

Apple launched macOS Sierra to the public on September 20th 2016

See: What’s New in macOS Sierra

After being in Public Beta since July, macOS Sierra (10.12) was released on September 20th 2016 to the general public, and is now available as a free upgrade via the macOS App Store, however before you upgrade you may wish to check the following information to see if your software or hardware has compatibility issues, and to see if your Mac is supported. Continue reading “macOS Sierra in the wild”

So last week I updated one of my home servers from Ubuntu Server 14.04 to 16.04. During the upgrade a number of packages got upgraded, many of which I simply glossed over as the server was in a relatively vanilla state and the only service it’s running is Plex. openSSH was one such package that was upgraded, moving from v6.6 to v7.2 .

I completed my upgrade and tested Plex was working fine, and thought no more of it until a week or so later when I tried SSH’ing into my server only to be met with an error from PuTTY stating ‘Server Refused our Key’.

A bit of head-scratching and research later and I discovered that version 7.x of openSSH has made a change to deprecate DSA keypairs. It’s not a recent change, with articles appearing from February 2016, but with version 7.x of openSSH making it into stable distributions, it is worth highlighting before users upgrade their systems. Continue reading “Deprecating DSA”