Monthly Archives: December 2014

Electric wiring in house diagram

Yesterday I was working on adding an power plug to the electric board. My intitial plan did not quite work as I expected. Later found out how to do it correctly. Here is how.

Problem Description

I had an outlet board which two buttons. I wanted to add a two prong outlet so I can use it for other lights etc

How to do it

Well this is where I learned a few things. The electric board in house contains red and black wires (positive and negative respectively). In my case, the there were all red wires. Was it a mistake? No! Since there were not outlet socket there was not need of a black wire. Basically both sides of the swtith are positive because it is short circuit.One end comes from the main power supply and it goes to the bulb (not ground!). Hence both are positive (or negative depends on your terminology).

My outlet initially did not work because when I would turn on one of the button, the power in my outlet will become zero. For this to fix, I had to use the black wires! The black wires in the baord are only suppose to go to the power outlet. If there are not power outlets in the board, black wires are not used.

In my case to I had to bring the black wire to one of the power outlet and my board was working fine!

Hope this helps somebody!

Add public ssh keys on mac

I had this issue today so would like to document it. The problem was, I downloaded my public ssh key to the default Download Folder. When I tried to load the key using

It would say the following error, althogh my id_dsa file did exists in Downloads folder!


The issue was that you have to copy you public key inside ~/.ssh/ folder. If this does not already exists, you must create it first.

Second you have set proper permission on it using

chmod 700 ~/.ssh/

After this if you type

It will load the private key without any hesitation.

If you are still not able to connect and getting an error such as

Chances are not allowed to use ssh even though you have received your username and password. You might need to call them or contact customer service to enable ssh for your account.

Some helpful links

1. SSH-Add manual (mac)

2. How to Install git on Godaddy (uses ssh)