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Test if remote TCP port is open from a shell script
...e.org 80 </dev/null; echo $?
Connection to canyouseeme.org 80 port [tcp/http] succeeded!
0
Failure:
$ nc -w 2 -v canyouseeme.org 81 </dev/null; echo $?
nc: connect to canyouseeme.org port 81 (tcp) timed out: Operation now in progress
1
If the hostname maps to multiple IPs, the above failing ...
What is the difference between the states selected, checked and activated in Android?
...gle() {
setChecked(!mChecked);
}
}
Thanks to the following:
http://sriramramani.wordpress.com/2012/11/17/custom-states/
Stackoverflow: How to add a custom button state
Stackoverflow: Custom Checkable View which responds to Selector
http://www.charlesharley.com/2012/programming/cust...
Intro to GPU programming [closed]
... platform to do GPU programming. There are tons of cool materials to read.
http://www.nvidia.com/object/cuda_home.html
Hello world would be to do any kind of calculation using GPU.
Hope that helps.
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css ellipsis on second line
...pure CSS.
My source when I was looking for the exact same thing just now: http://www.quirksmode.org/css/textoverflow.html (Quirksmode ftw!)
EDIT If the good CSS gods will implement http://www.w3.org/TR/css-overflow-3/#max-lines we can haz this in pure CSS using fragments (new) and max-lines (new)....
How do I prevent a Gateway Timeout with FastCGI on Nginx
...on here would be (as a server admin amateur) where do I go to change this? httpd.conf file?
– jeffkee
Aug 2 '12 at 20:35
2
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Android Hello-World compile error: Intellij cannot find aapt
...
Add deb http://archive.ubuntu.com/ubuntu/ raring main restricted universe multiverse to /etc/sources.list, then sudo apt-get update and then sudo apt-get install ia32-libs
– Mendhak
Apr 9 '14 at...
background-size in shorthand background property (CSS3)
...be a case of "not supported by this browser yet".
This works in Opera : http://jsfiddle.net/ZNsbU/5/
But it doesn't work in FF5 nor IE8. (yay for outdated browsers :D )
Code :
body {
background:url(http://www.google.com/intl/en_com/images/srpr/logo3w.png) 400px 200px / 600px 400px no-repeat;
...
What is a database transaction?
...
http://en.wikipedia.org/wiki/Database_transaction
http://en.wikipedia.org/wiki/ACID
ACID = Atomicity, Consistency, Isolation, Durability
When you wish for multiple transactional resources to be involved in a single transacti...
How to get the request parameters in Symfony 2?
...
The naming is not all that intuitive:
use Symfony\Component\HttpFoundation\Request;
public function updateAction(Request $request)
{
// $_GET parameters
$request->query->get('name');
// $_POST parameters
$request->request->get('name');
...
What database does Google use?
...
It's something they've built themselves - it's called Bigtable.
http://en.wikipedia.org/wiki/BigTable
There is a paper by Google on the database:
http://research.google.com/archive/bigtable.html
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