Normally the little 8 (well 10 if you include the ‘uplink’ ports) port switches we buy end up under a desk or on a shelf but for a one off we’ve got one going in a comms cabinet. Quite luckily the HPE Aruba 2530-8G come with the ears in the box to do this (I recall seeing some models of switches with this being an additional item or needing a special shelf).

You’ll still need a place to keep the power supply but that’s nothing a few cable ties can’t sort!


Today I had the pleasure of presenting at the Oxford ICTF Conference on Multi-Factor Authentication and Password Stores with Smart Cards and YubiKeys, the video recording is online now here – https://youtu.be/WGtCxS2YFNA and the presentation can be downloaded through the link below.

A special shout out goes to the Yubico press office for providing a set of YubiKey 4s, YubiKey NEOs and Security Keys which helped fuel a very lively Q and A session!

  Presentation.pdf (5.5 MiB, 48 hits)

Yes! Yes it they do!

In preparing for a presentation to some peers in the wider IT community tomorrow I have access to some YubiKey Neo authentication keys; in doing some extra reading up on the keys I thought – I wonder if these work with the MIFARE readers (note that these are MIFARE readers not the proprietary Paxton only readers) that are part of our Door Access Control system.

Lone behold they do; in the revision of the keys we have it’s a NXP MIFARE Classic 1k chip.

Recently I was inspired to take on some more information about routing and the associated protocols. To help support that I’ve gone and bought a Mikrotik RouterBoard hAP ac from Amazon (along with a RouterBoard hAP Lite). I hope to kick out a few blog posts on it along with my learning points over the next few days/weeks.

In the meantime enjoy the photos!

Having recently changed from using PowerShell ISE to VS Code I’m still discovering all the super awesome new features of it (be sure to get a copy of the Keyboard shortcuts from this page – https://code.visualstudio.com/docs/getstarted/keybindings). To get started I’ve changed the default new file language to PowerShell (not that you can’t change it to anything else though!).

To do this follow the short guide in the screenshots adding in the line shown in the gist below.

In putting together a small RDS (Session Based) environment on Server 2016 today today I kept running across the error message below during the installation.

Failed: Unable to install the role services.

After much back and forth between forums and event viewer it turns out our default policy to disable TLS 1.0 on servers was the issue. Enabling TLS 1.0 (through the registry or with the fantastic IIS Crypto – https://www.nartac.com/Products/IISCrypto) ended up sorting the issue for us.

Thanks to the organising committee of the (Oxford and Cambridge) College IT Conference 2018 held at the RAF Museum (Hendon) for the invite to talk about PowerShell and Server Core! As promised the video from the presentation is now up on YouTube; in addition the slides as PowerPoint and PDF can be seen below.

  Presentation (PowerPoint) (28.5 MiB, 138 hits)

  Presentation (PDF) (4.9 MiB, 126 hits)

30/03/2018 Update

Microsoft have published this blog post – https://cloudblogs.microsoft.com/windowsserver/2018/03/29/windows-server-semi-annual-channel-update which clarifies the difference between the Long-Term Servicing Channel (Server 2016/2019/so on) against the Semi-Annual Channel. Do have a read!

If you have ever seen this post Server Room – The latest you will notice we have a pretty awesome HPE Aruba 5400R zl2 Core Switch; however (at least until now), I’ve been yet to find a really simple guide which shows the best way to reboot the management modules following a firmware update.

So after much research and a live firmware update this morning (last time round I just reloaded both management modules at the same time) I’m going to go with the following plan.

  1. Update the firmware (wait a few minutes for the firmware to copy from the primary to the secondary module – this is automatic)
  2. Reboot the standby module using the boot standby command (and wait a few minutes)
  3. Confirm that the standby module is now running the new firmware with  show redundancy
  4. Failover from the active to the standby module – this caused a few seconds of downtime in my environment
  5. Once the failover is complete the previously active module will now also be running the new firmware

For easy copy and paste see the commands on GitHub below along with the screenshot sequence which shows you how this will look on a switch running the 16.x branch firmware.

With thanks to the 50 staff from across the University for attending please see below the links to the videos and PowerPoints of the day!

Direct link to Playlist – https://www.youtube.com/watch?list=PLRxbdlgJzwyjAf820T0u4GpP0E01a9LEX&v=u-GVJ_0VuRM

Slides as PowerPoint

  1 Intro (4.3 MiB, 262 hits)

  2 MDT (85.2 MiB, 321 hits)

  3 PowerShell (27.5 MiB, 244 hits)

  4 PRTG Network Monitor (47.5 MiB, 290 hits)

  5 OpenVAS (32.9 MiB, 241 hits)

  6 WSUS and Chocolatey (60.3 MiB, 273 hits)

  7 NPS and VLANs (10.7 MiB, 312 hits)

Slides as PDF

  1 Intro (2.0 MiB, 256 hits)

  2 MDT (2.2 MiB, 292 hits)

  3 PowerShell (1.8 MiB, 293 hits)

  4 PRTG Network Monitor (3.2 MiB, 314 hits)

  5 OpenVAS (2.3 MiB, 303 hits)

  6 WSUS and Chocolatey (2.9 MiB, 326 hits)

  7 NPS and VLANs (1.4 MiB, 277 hits)

Stay tuned over the coming days for the scripts that are mentioned through the video which will be linked to from this post.

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my world of IT is a blog about both the business and consumer world of IT as seen by a common garden SysAdmin. For more information click here!