Russell Murray

Ubuntu or Linux Mint Static IP setup

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First things first when you install your OS DHCP is usually the default which means your computer connects to something like a router to get its IP. While your connected use the command. ifconfig If your using wired internet look for settings under something like “eth0” if you are using wireless internet look for settings […]

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Russell Murray

Linux .ssh folder, authorized_keys, and public/private key permission recommendations

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When dealing with ssh files I always forget what permissions each file should have so I figured I would post a helpful reminder for anyone interested. The follow are my recommended permissions for each file. .ssh 700 drwx—— publickey.pub 644 -rw-r–r– privatekey 600-rw——- authorized_keys 600-rw——- If your looking for commands it would be something like […]

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Russell Murray

LimeSurvey Plug-In Hello World

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This tutorial is meant to walk your through the creation of a “Hello World” LimeSurvey plug-in. We will write a small plug-in that prints “Hello World” for every questions hint. Only do this on a test installation of LimeSurvey because it effects every survey. Requirements: A working LimeSurvey (One not used for real surveys) Write […]

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Russell Murray

How do I fix a Linux swap on Debian/Ubuntu/Linux Mint?

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1 – Check if your swap really isn’t working Command: top Broken Swap Example There should be a row with the swap information in it if that row shows 0 for total, used and free then your swap isn’t working Healthy Swap Example   2 – Check If you have a Linux Swap Partition: Command: […]

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Russell Murray

Linux Permission Number Lookup

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Example Command: sudo chmod 764 file.txt   Single Numbers: read      = 4 write      = 2 execute = 1   Combos: read & write & execute = 7 read & write = 6 read & execute = 5 write & execute = 3

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Russell Murray

Speeding up VirtualBox When Running a Linux VM

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In my experience a poorly configured VirtualBox virtual machine is unusable. It is also my experience a well configured virtual machine works extremely well. If your computer is slow to begin with then using a VM desktop is a bad idea. The following are the settings I used that drastically improve the performance of my Linux virtual machines.

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