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What are file descriptors, explained in simple terms?
...dded great stuff. I will add just my 2 cents.
According to Wikipedia we know for sure: a file descriptor is a non-negative integer. The most important thing I think is missing, would be to say:
File descriptors are bound to a process ID.
We know most famous file descriptors are 0, 1 and 2.
0 co...
What RSA key length should I use for my SSL certificates?
...livered by CA and used by software.
Will eventually be cracked too. Don't know when but could take decades.
Doubling the size takes many many orders of magnitude more compute power to crack. See question how much stronger is RSA 2048 compared to 1024.
4096 bits
4096 bits RSA certificates are th...
Best way to synchronize local HTML5 DB (WebSQL Storage, SQLite) with a server (2 way sync) [closed]
...
DB sync is not my priority for now, so I just give up, waiting for a more standard and robust solution...
– Samuel
Aug 18 '10 at 13:25
3...
How do I fit an image (img) inside a div and keep the aspect ratio?
...
You will need some JavaScript to prevent cropping if you don't know the dimension of the image at the time you're writing the css.
HTML & JavaScript
<div id="container">
<img src="something.jpg" alt="" />
</div>
<script type="text/javascript">
(function(...
Sublime Text 2 keyboard shortcut to open file in specified browser (e.g. Chrome)
...er, paste this
[{ "keys": [ "f12" ], "command": "view_in_browser" }]
now F12 will be your shortcut key.
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Reading settings from app.config or web.config in .NET
...alue = System.Configuration.ConfigurationManager.AppSettings["keyname"];
Now access the Setting class via Properties:
string keyvalue = Properties.Settings.Default.keyname;
See Managing Application Settings for more information.
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How does the Google “Did you mean?” Algorithm work?
...omasRutter: Douglas describe it as "statistical machine learning".
They know who correct the query, because they know which query comes from which user ( using cookies )
If the users perform a query, and only 10% of the users click on a result and 90% goes back and type another query ( with the ...
Using Vim's tabs like buffers
...o beat Vim into 1 tab == 1 buffer is an exercise in futility. Vim doesn't know or care and it will not respect it on all commands—in particular, anything that uses the quickfix buffer (:make, :grep, and :helpgrep are the ones that spring to mind) will happily ignore tabs and there's nothing you ca...
Entity Framework rollback and remove bad migration
...se, but I realised that the last migration was bad and I don't want it. I know that I can rollback to a previous migration, but when I add a new (fixed) migration and run Update-Database, even the bad migration is applied.
...
Difference between git pull and git pull --rebase
...= git fetch + git rebase against tracking upstream branch
If you want to know how git merge and git rebase differ, read this.
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