Protect our health in the IT career

As we work in IT field, we spend most of our time sitting on a chair.

We work 8 hours a day, 5 days a week, 50 week a year, a total of 2,000 hours a year. Assumed that we sit 70% of our working our, it is still 1,400 hours a year. I am not going to count the hours we spend sitting at home because it will rise to a huge number that may shock us.
What is my point?
Well, the health effects of sitting too much is not a myth, but a scientific fact. If you don't believe me, take a quick look at these articles:

• http://www.mayoclinic.com/health/sitting/AN02082
• http://www.cbsnews.com/news/sitting-too-much-may-double-your-risk-of-dying-study-shows/
• http://www.npr.org/2011/04/25/135575490/sitting-all-day-worse-for-you-than-you-might-think
• http://www.webmd.com/heart-disease/news/20130221/too-much-sitting-linked-to-chronic-health-problems

Why on earth should we care about about health?

Put it simple, our health is the most precious thing we have in our life, and when it goes away, there is nothing we can do to get it back, at least at the current age of technology.

How to use nslookup tool on Windows to query a DNS server

It seems weird to talk about how to use nslookup tool on Windows. Almost every sys admin has used nslookup. I just want to mention some options in nslookup since all I have done so far is to type nslookup in a command prompt, then type a hostname or an IP. I used to change my DNS IP in network connection in case I need to query from another DNS server, and as I was looking for a tool to do that without changing the IP in network connection, I got my answer with nslookup /?

To query from a DNS server, we can either
nslookup <hostname> <DNS server IP>
Ex: nslookup google.com 8.8.8.8

or for interactive mode
nslookup - <DNS server IP>
Ex: nslookup - 8.8.8.8

Basic English - Simple sentence

How to write a basic sentence correctly?

Like I have said, a paragraph, an essay, or a business email starts with one sentence no matter how big it is. They are basically a combination of sentences. Mastering the sentences, we will at least write correctly.

Today, I am going to write about the first kind of sentence, which is simple sentence. (page 418 P&E ebook)

We need to practice breaking apart a sentence, in fact, break apart any sentences that come across our eyes.

Change Windows Server 2012 network profile to Private

As default, Windows Server (R2) 2012 set its network profile to Public. Not as in Windows Server 2008 in which we can change profile via GUI, in Server 2012, we can change via Windows PowerShell (It seems that MS is forcing us to go back to command line OS)

1. Open Windows PowerShell
2. Run Set-NetConnectionProfile -NetworkCategory Private
3. Check if the profile has changed by running Get-NetConnectionProfile