Posts on GeneralZer0

How to use an Abacus

Tue, 11 Feb 2025 00:00:00 -0500

Learn how to add and subtract using a 2/5 Abacus

Satellite Orbits

Wed, 11 Dec 2024 20:23:42 -0500

How Satellite Orbits are defined

What Happens When I go to google.com

Thu, 25 Feb 2021 00:42:26 +0000

Author Note: Its been a while but I will be trying to update this blog semi-regularly with new posts of things I have worked on.

I did a lot of research into answering the interview question as in depth as I can and still present it to a semi-technical audience. The Slides are on located https://slides.com/generalzero/how-do-i-google and are not complete but do go into detail of How physical keyboards work, the USB protocol to the computer and a general view on how that information is translated into events for the program to process.

Client SSL Certs for Remote Systems Administration Part 3

Sat, 05 Mar 2016 05:03:58 +0000

Recently I changed my haproxy configuration to support Client Certificates to login in to services through the Web from outside my internal network. This will be broken down in to mutable parts so that it is easier to read.

If you have not created you Client Certificate see Part 1.

If you have not configured haproxy to accept Client Certificates see Part 2.

~~Creating Client Certificates~~
~~Configuring Haproxy to accept them~~
~~Configuring Haproxy to reverse proxy to your web applications~~
Adding your Client Certificate to your browser

If you have gotten through everything else than this will be easy

Client SSL Certs for Remote Systems Administration Part 2

Sat, 05 Mar 2016 04:50:00 +0000

Recently I changed my nginx configuration to support Client Certificates to login in to services through the Web from outside my internal network. This will be broken down in to mutable parts so that it is easier to read.

If you have not created you Client Certificate see Part 1.

~~Creating Client Certificates~~
Configuring Haproxy to accept them
Configuring Haproxy to reverse proxy to your web applications
Adding your Client Certificate to your browser

####Configuring Haproxy to Accept Client Certificates

Client SSL Certs for Remote Systems Administration Part 1

Sat, 05 Mar 2016 04:47:16 +0000

Creating Client Certificates
Configuring haproxy to accept them
Configuring haproxy to reverse proxy to your web applications
Adding your Client Certificate to your browser

####Creating Client Certificates This is a tutorial on creating your self signed Client Certificate. Unlike self signed Certificates their is no ugly page saying that this is not signed by a secure Third Party which is good for us.

Smart Devices Feature or Data Collection

Fri, 08 May 2015 20:00:00 +0000

Devices have been getting more user friendly as new devices, services and software comes out. Some of the new services do come with a price affecting security. Specifically one of the newer services to come around is Smart TVs. These devices are mostly beneficial but recently this has not been as true as before. Some of these device have microphones and video cameras that are always on. This can be helpful in situations to simplify our life but depending on where that data is processed it could be sending the data back to a server and getting information that it shouldn’t. This is true with most of the device that have recording devices that are always on because it takes a lot of processing power to do these operation and the device is not suitable for those computations. But this could be negative for the user because the user does not know what the company is using that information for.

MathJax With Toto

Sun, 09 Mar 2014 20:00:00 +0000

This is how I make Toto embed MathJax in to the page using Tex markup.

<script type="math/tex; mode=display">
\begin{align}
x &= 100011_2 \\
  &= 100_2 * 2^3 + 011_2 
\end{align}
</script>

It looks like this when rendered

$\begin{align} x &= 100011_2 \\ &= 100_2 * 2^3 + 011_2 \end{align}$

The mode=display makes it so that it is centered in case that is what you need because it looks better than left or right aligned.

Binary Karatsuba Multiplication

Thu, 20 Feb 2014 22:00:00 +0000

I recently looked at a amazing peice of simple mathmatics called Karatsuba’s Multiplication. The orignal article went in depth proving that it does infact decrease the ammount of expencive opetation when multiplying numbers together.

This was an intristing descovery and when I though about it further I beleve that I can make it even faster than that in terms of a computer.

I will take his basic condition and improve on it

Getting TOTO working on a Server (non Heroku)

Mon, 14 Oct 2013 20:00:00 +0000

Toto seems that its a blogging engine but there are a few things that still need to be worked out. I hear that it works great in Heroku but it doesn’t seem to work so well in your own server. The routes to the file are a little bit buggy but you can fix that as long as you make the file name

%Y-%m-%d-{:slug}.{:ext}

Make sure that you specify some of these in the config

Configuring Nginx with Rails and PHP Together

Sat, 12 Oct 2013 20:00:00 +0000

Finishing up my config for nginx with a proxy for php and rails will update soon with the final config.