Lately I updated our lab's server to Ubuntu 16.04 LTS. I did a clean installation but the system won't boot up. It stuck with a blank ubuntu wallpaper screen and nothing showed up. Looking at the system logs it shows an error saying things like
Kernel Panic xxx
Continue reading Ubuntu 16.04 LTS Installation Issue
Bought 1Password account and found a 20% off coupon code.
The code is:
Continue reading 1Password Discount Code
Since updated to El Capitan, many things went wrong. Last time screen was blurry, now camera does not work. The symptom is camera is not recognized in FaceTime, in QuickTime Video recording, and in any video recorder app.
So a little search online gives the solution: Continue reading Mac El Capitan: Camera Not Working
Recently I updated my MacBook Pro to El Captain, and I don't like El Captain. One major thing I noticed is the screen went blurry. Text and everything. My Mac does not have retina display, and yet it looked fine when I still had Yosemite. Well, not saying Yosemite was good either, but it was at least better than El Captain. Found several solutions online but they didn't quite work for me. After digging into the settings, I found below method working for me to fix the blurry issue.
Continue reading Mac El Capitan: Blurry Display Issue
This is a simple log in case I forget the steps, it may or may not help you. A good thing about StartSSL is now they support up to 5 subdomains under the same root domain for free. This is very nice.
- Go to https://startssl.com and "Authenticate" using a stored certificate. If you don't have one, you need to "Sign-Up"
- After logging in, first we need to validate domain. Go to "Validations Wizard" and select "Domain Validation (for SSL certificate)." Next enter your root domain, for example,
happyz.me. Before going to the next step, if you have set domain privacy, you need to temporarily disable that to quickly get the validation code to your real email address. Procedure afterwards is trivial: enter code for validation and then re-enable domain privacy when validation completes.
- Download the zip, in my case
happyz.me.zip. If it does not automatically download, goto "Toolbox" and then "Certificate list" to retrieve the zip.
- Since my server is using Apache, unzip the "ApacheServer.zip" in the downloaded zip and you will get two files:
- Enable SSL for the website by modifying the config file in apache folder. For example:
Continue reading Setting Up SSL Certificate for Website
So I have a VPS with about 700MB RAM but the available is < 100MB. Today when I do
I got the error saying
xxxx: [Errno 5] [Errno 12] Cannot allocate memory
So I solved this by update everything one by one using the following command: Continue reading The Way to Update A Small RAM VPS
This is a tip for people who don't care about $3.
I got the Project Fi sim card a while ago, but I got a very stupid number that I don't like. So I figured, since we could port our number to Project Fi, we should be able to find us a good number somewhere, and then port the good number to the Project Fi account. Continue reading Project Fi Phone Number Tip