A pattern that a subject maintains a list of observers, and automatically notifies them of any state changes. Continue reading Observer Pattern
List of Subdomains to Futureproof
Upon news of Mozilla spearheading the movement to deprecate non-secure HTTP, Mozilla had release an FAQ which listed two SSL certificate authorities that provide free trusted certificates to use: StartSSL and WoSign.
I have only heard of StartSSL and have been using it for the past few years, but they restrict the certificates to only allow one subdomain to be added. So I decided to try WoSign to get another subdomain on another certificate to use on another server. But to my surprise, WoSign allows up to 100 domain names to be added to the certificate! Continue reading List of Subdomains to Futureproof
Factory Method Pattern
A pattern that relies on inheritance in which a method creates objects returning common parent class. Continue reading Factory Method Pattern
OpenVPN on CentOS 7 TUN
OpenVPN is an open-source software that securely creates a connection between two sources. In this tutorial, we will be setting up the OpenVPN server on CentOS 7 to encrypt Internet usage.
Continue reading OpenVPN on CentOS 7 TUN
freephoneline.ca SPA112 and SPA122
freephoneline.ca has been such a wonderful free* telephone service, that I have been using since 2010. That asterisk beside “free” had been placed there because the SIP configuration requires one-time fee. The absolutely free phone is a desktop client on your computer to make calls. The SIP configuration is required for a phone adapter and using the phones throughout the house.
Continue reading freephoneline.ca SPA112 and SPA122
Singleton
A restricted class only instantiating one object Continue reading Singleton
Jumping in with Two Left Feet
The month of May had been an extremely busy time for me. It was crunch time with my wedding approaching and loads of things left to do. But all of that has wrapped up and I’m ready to start up again!
This time however, I’m throwing in some social media into the mix. I signed up for HootSuite to help me manage Twitter, LinkedIn, and Facebook. Then trying to post everyday something relevant to what I’m doing.
Seafile on CentOS Apache SSL MySQL
Seafile is an open source cloud storage server similar to the popular Dropbox. I have been waiting for an alternative for quite some time and I’m glad to see that one of the open source servers has finally gained a lot of ground.
This post is gear towards being a tutorial rather than anything else. See their website for more details: http://www.seafile.com
This tutorial accomplishes the following goals
- Install the Seafile server
- Restrict to a user
- Auto start on restart
- Secure access through Apache HTTP Server SSL
- Run Seafile from a different path
Getting off my butt
Motivation has been really lacking for me lately. I’ve been playing games, surfing the web, watching shows, etc. Nothing to progress my desires to learn and create.
I recently got that glimpse of motivation today when I heard about “Jerry Seinfeld’s Productivity Secret” (http://lifehacker.com/281626/jerry-seinfelds-productivity-secret). It’s basically a calendar posted somewhere important with every day filled in with the same tasks. When one task is complete, you cross it off or place a big X on that date. Once the month is complete, you can gaze with satisfaction of all the hard work that has been amounted.
I have tried motivating myself, but this is just another method to get me back on track.
I created a simple calendar in Google Calendar with three goals on my list:
- Work (programming, system admin, etc) – daily
- Work out – daily
- Blog – weekly
We will see how this goes. I cannot keep count of how many WordPress instances I currently have, let alone the other failed ones. I had set this WordPress up quickly with no themes and just some security.
Wish me luck!
*crosses “blog” off from my calendar*