Category Archives: Geek

Sweet computer stuff I have found

Windows Server 2012 R2, Missing DNS Entries, Solved

For some reason, I just couldnt see why it was happening, Windows Server 2012 R2 DNS AD DC dns entries just disappearing! It started with one, I clicked refresh, and they all dissapeared.

Sometimes you just need to go back a couple of steps, and remember that you have selected a Filtered View. It was only when adding a test DNS entry, the system said the record was already added, but where!?

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Raspberry Pi Zero Wireless Issues, Problem Found

Note: written march 2018 but only just published

Using a brand new Raspberry Pi Zero Wireless for the first time, I found the WiFi to be awful.

I used Raspbian Jessie Lite to setup the Pi Zero Wireless with a headless configuration, WiFi details and SSH enabled before the initial boot.

Round 1 – WTFreak!?

Pi unboxed and put into a nice little case for protection, power plugged up…here we go!

On booting the system the Pi connected to my WiFi and I was able to connect via SSH remotely using the hostname. The connection kept on dropping or hanging, which I thought was slightly strange.

I took a look at my UniFi AP Controller which gives statistics on devices connected, I was shocked to see the strength of the signal between the AP and the Pi flexed from 0% to 5%!?

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Raspberry Pi Zero W Quick Setup

Install the OS

Grab the lasted Raspbian Lite OS from and burn it to an SD card. Once burnt, unmount and remount the SD card with the PC, this allows you to access the removal drive, now named ‘Boot’.

Enable ssh

SSH is disabled by default. Place a blank text file with the name ssh onto the root of the SD card:

  1. Load a Notepad/++
  2. Save, usual a filetype of any
  3. Name the file ssh and save
  4. Close the file

Add WiFi before boot

To add network info you need to create a file called wpa_supplicant.conf and place that in the root SD card .

  1. Load a Notepad/++
  2. Copy/Past the below code into a new blank file, updating the relivant info.
  3. Save, with a filename of wpa_supplicant.conf ensuring the file type is not .txt
  ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev