How to check Mac Address and IP Address of your System in windows 7

click on network icon on right side of task bar.Open Network and sharing Center

Click on Wireless Network Connection OR Local Area Network Connection in case of  Cable network.

Click on Details...

The first one physical address is your pc MAC address and second one IPv4 Address is IP Address of your PC.

How To Use Custom Robots.txt , Custom robots header tags in blogger Search preferences setting

You need to Use  this For better SEO and Traffic.

Step-1
Go to Settings --> Search Preferences and click Edit next to "Custom robots.txt."

select "yes".

Step-2
Copy and Paste this Text in to box same describe in picture.

User-agent: *

5	Disallow: /search

6

Allow: /

User-agent: *

5	Disallow: /search

6

Allow: /

User-agent: *
Disallow: /search
Allow: /

Sitemap: http://www.yourblogname.blogspot.com/atom.xml?redirect=false&start-index=1&max-results=500

Note: Please put your address : ), if you have custom domain like www.yourBlogname.com put it there.

step-3 Save changes.

For Custom robots header tags

Step-1
Click Edit and select yes.

Step-2
Please only check those boxes which are shown in picture.

Step-3
Save Changes.