Nowadays, email is always with you like the mobile phone, it’s main communication method and it’s a part of our life. Many of us check our emails on our mobile phones or tablet devices, the rest using Outlook or modern browsers ie Firefox, Chrome … and all support UTF-8 symbols. Hey, check your inbox and How do you think if you get an email with stars (★), hearts (♥), snowmen (☃) and even airplanes (✈) in the email subject line ???

Trust me, you can do it yourself by adding UTF-8 symbols (known as “glyphs”) in the subject line. Following are some examples:

1/ ✈ Hey Safe flight
2/ ?Merry Christmas
3/ ? OMG …
4/ ? Need to discuss

See how it displays in your mailbox:
1. Gmail @ Firefox

Sent Mail - Mail 2015-12-05 21-40-16
2. Mail client @ Mobile
You can find more some cool stuff here

~~~ Enjoy & HAPPY EMAIL ~~~

Following step are tested with Ubuntu 14.04.2 LTS with apache 2.4.7, but it should be same in other distro.

1. Getting free certificate

Go to, register and get a free cert easy with simple steps. Please note that you should requests SHA256 for certificate.  After download key and cert from startssl, you should download immediate cert from and use as chain key.

2. Enable SSL configuration as follow

Let’s open ssh and login to your server, please make sure that your server has apache, openssl with security patch up to date and enable ssl configuration at port 443.

3. Deploying Diffie-Hellman for TLS

Install new dhparam (2048+), it requires ~ 10 minutes to generate new dhparam file. After complete, open dhparames.pem, copy the content and paste to the end of your certificate file.

Please note that if your apache is 2.4.8 or newer, you can specify your DHparams file in ssl.conf as follows:

4. Enable SSL and config your virtual host as follows:

5. Restart Apache2 to apply your changes

6. Time for testing

Check certificate result from:

Getting result on


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Follow the topic The most important job is recruiting, I want to share my view on the level of developer. It may be not meet your idea, but to know the differences can give you a deep level you want to go on.

There are at least 4 levels as follow i think:

Coders. They can figure out it, your idea or detail specification with flow. It’ll work, easy like drink a beer, but it won’t be pretty or usable in large scale environment.

Hackers. Don’t mix it with the black hat/white hat hackers. In this case, they are the folks with skillful, with detailed understanding of (some) area deeply, or they can hack into the core of framework, can do some crazy things with tricks.

Programmers. Ok, they write code with understand of algorithms, workflow. They can work alone and well, they can do some incredible things.

Developers. Are the best of all, can use lots of different systems and languages and get them to communicate with each other. They have deep and broad knowledge, from hardware to software, they are true and broad professionals, they can work with people, transfer knowledge and communicate well.

I’ve more than 10 years working experience, have good connection, know a lot of people who working in IT related field in Vietnam … but i know only some true developer. I’m pretty sure that “Your Education” won’t get you hired, especially in A level candidate, it depends on your experience, your skill set and what you can bring to their business, what they’ll receive if hire you. To be honest, if you are closer to one of above level already, you can get an idea of which direction to head and do the best of you.

And now, let me ask some questions:

1. What is the differences between Game Developer and Game Programmer ? Why the game companies always want hire game developer instead of game programmer ?

Game development involves managing all of the different jobs that need to be done, it’s not only coding, it needs skill and tools to build up a game, and it’s not easy. They need the real developer, who can make system run, who can lead the game programmer to code.

2. What is fullstack Developer ? Why company still want to hire .NET Web Developer ?

For me, fullstack developers who are familiar with the entire stack (from hard ware to software, from environment to business logic) … and they know how to make thing easier for those around them. They don’t care about languages, platforms or environment.

I read many job posting in Internet, it’s too funny that some companies want to hire .NET Web Developer, Java/PHP Web Developer. If you want to hire developer, don’t care about the language, just simple like “1 back-end developer, 1 front-end developer or mobile developer. Expect on their skill on back-end or front-end, don’t expect on their skill on programming language. If you just want people who can work with .NET, hire a coder / hacker, they can do almost your idea.

And again, what’s the difference ??? 🙂

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