18

Aug

2015

Powershell Script to Set Computer Name Based on DNS

August 18, 2015 jonny powershell

This Powershell script will use nslookup to query a DNS Server to get the hostname and use that result to set the computer name. If you use this you will need to amend as necessary including the address of the DNS Server (I have added the Google one... » More

30

Jul

2015

CentOS 7 as NAT Gateway for Private Network

July 30, 2015 jonny red hat centos

The scenario is a small private network connected via a switch and using 192.168.0.* addresses. One of the machines (let's call it RTR001) on the network has two network interface cards. One with an address on the 192.168.0.* network and another... » More

27

Jul

2015

Screen Annotation on Linux

July 27, 2015 jonny ubuntu

I was testing a HP EliteBook 2730p with Linux Mint 17.2. The laptop/netbook/tablet comes with a touchscreen and stylus. USB booting did not work for me but I was able to network/pxeboot an installation. When it came to drawing on the touchscreen I was... » More

12

Jun

2015

Migrating from SVN to GIT with Branches and Tags

June 12, 2015 jonny open source

I needed to convert a number of small subversion repositories to git so that they could be hosted publicly on GitHub and some hosted on our private GitLab service. I am adding a few notes here of what I did to help my future self. If it helps anyone else... » More

02

Jun

2015

Recording an Android Screencast on Linux

June 2, 2015 jonny android

I wanted to make a short video recording activity on an Android device while on a Linux Mint desktop. To do so I did the following: Install Java if you do not already have it installed. Install the Android debugger (if not already installed): sudo... » More

02

Jun

2015

Configure Java Security Settings on Linux

June 2, 2015 jonny linux

I received the following error message when trying to run a Java JNLP file: Application Blocked by Security Settings Your security settings have blocked a self-signed application from running Assuming I trust the program I found I could get it to... » More

27

May

2015

Slurm & Environment Modules Bash Error

May 27, 2015 jonny shell

I had the following error message when trying to assign a job via Slurm (with Environment Modules installed). Since this has come up a few times for me I thought I would detail the solution: bash: BASH_FUNC_module(): line 0: syntax error near unexpected... » More

26

May

2015

Multisite DokuWiki Install

May 26, 2015 jonny open source

I wanted to be able to install DokuWiki with a single code base serving multiple wikis. This would have several advantages especially making updates easier. There are a variety of ways of doing this, and thus a variety of instructions around the web.... » More

19

May

2015

Beginning MongoDB

May 19, 2015 jonny Uncategorized

Coming at MongoDB from a RDMS perspective (and specifically MySQL), things feel a little strange. Just sharing a few paragraphs on how I got started. Installation Installing MongoDB was easy following their instructions and using the 10gen repo for... » More

05

May

2015

Munstrap for Munin

May 5, 2015 jonny open source

Warm fuzzy feeling inside when you get emails like this: I had recently added my Munstrap template to the munin-contrib repository and had been talking to Steve about the template much earlier. Munstrap was based on Bootstrap and other interested... » More