Error that i received while attempting to run Windows 8 ISO on VirtualBox before i could buy Windows 8 Pro. This happened with both 64 bit and 32 bit installations.
VT-x/AMD-V hardware acceleration has been enabled, but is not operational. Certain guests (e.g. OS/2 and QNX) require this feature.
Please ensure that you have enabled VT-x/AMD-V properly in the BIOS of your host computer.
Later i tried to run Ubuntu 12.0 64 Bit but it failed to run with error
This kernel requires a x86-64 cpu but only detected an i686 CPU. Unable to boot – please use a kernel appropriate for your CPU
It was caused as the VM was by default set to “Enable VT-x / AMD-V” Hardware Virtualization. This setting is visible by clicking on VM then Right Click > Settings > System > Acceleration
Hardware acceleration-AMD-V hardware acceleration has been enabled
Automatically generate the Post Thumbnail (Featured Thumbnail) from the first image in post (or any custom post type) only if Post Thumbnail is not set manually.
WordCamp SanFrancisco takeaways from Chris’s presentation titled “Chris Coyier: 10 Things to make your site faster”
We have to focus on the front end, which generally all over the web takes 80% of the load time. The server actually takes about 20% of time to load.
Lets say a webpage takes, 10 seconds to load, out of these 10 seconds, the webpage is generated by server within 2 seconds and our browser (irrespective of which one it is) takes 8 seconds. This was observed by Steve Sounders
Thats why we need to focus on the front end and most importantly this is really easy to accomplish as compared to server changes.
1. GZIP Everything
Check if you are doing gzip or not, gzipwtf.com
Visit HTML5BoilerPlate and check the .htaccess file to get the GZIP Compression code.
Copy and paste that code in your .htaccess file and it will work.
2. Cache Stuff
Browser cache and Server Cache
W3 Total Cache plugin,
Expire header, this rule in .htacces file tells the browser that the broser should KEEP the files and save it for some time (days, months), this rule can be applied to every file, CSS,images, etc.
However in this case, if there is a change in the CSS, images, the images wont change on some one elses browser until the time expires Or they clear cache from their browser.
OR We intentionally break the Cache by versioning your static files also known as “Auto-versioning” as described in detail here: http://derek.io/blog/2009/auto-versioning-javascript-and-css-files
This means that we can change the name of the CSS files in versions and
Quick way to do this, same as gzip compression, get the cache code from HTML5Boilerplate and put it in your htaccess file
3. Losslessly Optimize the images
We should allways reduce the size of the images by optimizing them:
* Save for web and devices (Photoshop)
* imageoptim.com Software for Mac
* pnggauntlet.com for Windows
Or use CodeKit (for Mac) to reduce the size of the images
Also here is an awesome alternative to CodeKit for Windows: http://mhs.github.com/scout-app/
Thanks to comment here: http://css-tricks.com/video-screencasts/111-get-yourself-preprocessing-in-just-a-few-minutes/#comment-170838
We can use image sprites http://css-tricks.com/css-sprites/ instead of multiple images for css.
A really cool tool to generate Sprites: http://sprites.me/
Do we have educational institutes in United States Only ?
Just recently I wanted to know the registration procedure for an .edu domain. I was more than amazed to get the details of the procedure and got to know that mostly the registration of .edu domain is restricted on the basis of geography.
Edu Domain restricted for US
What is an edu domain ?
The .edu domain is one of the seven original top-level subdivisions of the Internet Domain Name System (DNS). The .edu domain is intended for accredited post-secondary educational U.S. institutions. It is managed under the authority of the United States Department of Commerce. Source: Educause
In very similar manner, .edu is meant for Educational institutions, however, this is the domain limited to registration for US institutes Or Institutes who are recognized by US rating authorities.
“The .edu domain was originally intended for educational institutions anywhere in the world, when it was launched in 1985”
However, in 2001 the US Department of Commerce made Educause, the registrar of this domain extension. Since, this valueable extension became exclusive to institutes in United States.
Educational institutions elsewhere, CAN still get the domain registered, however the procedure and investment is tedious.
The following are the requirements as per Educause FAQ:
Eligibility for a .edu domain name is limited to postsecondary U.S. institutions that are institutionally accredited, i.e., the entire institution and not just particular programs, by agencies on the U.S. Department of Education’s list of Nationally Recognized Accrediting Agencies.
Some institutes in India, have managed to get the edu domain, e.g. Amity.edu. This must be after managing to get the accreditation.
Education, is universal and ICANN being an entity serving the internet for the benefit of mankind, how can such a domain be exclusive to US only ?
I do understand that NOT having such an extention would not make any big difference, however, when the original intent of launching this extension was being global, why these restrictions ?
Just the way we have .COOP extension which is available for any registered Cooperative without any geographical restrictions.
People all over are voicing to Educause here, not sure when will they make it available to the global institutions.
