大约有 18,000 项符合查询结果（耗时：0.0280秒） [XML]
S3 Error: The difference between the request time and the current time is too large
... then restart ntp service:
sudo service ntp restart
Source: https://www.allcloud.io/how-to/how-to-fix-amazon-s3-requesttimetooskewed/
And a more general article on keeping your time synchronized with NTP:
https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-...
mongoDB/mongoose: unique if not null
...cumentation with respect to Unique Indexes and Missing Keys here at http://www.mongodb.org/display/DOCS/Indexes#Indexes-UniqueIndexes.
// NOTE: Code to executed in mongo console.
db.things.ensureIndex({firstname: 1}, {unique: true});
db.things.save({lastname: "Smith"});
// Next operation ...
How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
...except implemented in java so it works for non-windows developers.
http://www.aboutmyip.com/AboutMyXApp/DevNullSmtp.jsp
share
|
improve this answer
|
follow
|...
Best way to add comments in erb
...oes not work <html> <body> <form method="POST" action="www.some-url.com"> <input id="data" name="data" value="<%=# "String" %>"> <input type="submit" value="Send"> </form> </body> </html> throws an error
– E...
$.ajax - dataType
...=====
Sample request:
POST /search HTTP/1.1
Content-Type: application/x-www-form-urlencoded
<<other header>>
name=sam&age=35
==============================
The last line above "name=sam&age=35" is the message body and contentType specifies it as application/x-www-form-url...
Disable hover effects on mobile browsers
...freek/24Z5M/. Test the above solution for yourself in this sandbox.
http://www.macfreek.nl/memory/Touch_and_mouse_with_hover_effects_in_a_web_browser. This same answer, with a bit more background.
https://www.html5rocks.com/en/mobile/touchandmouse/. Great background article on html5rocks.com about t...
Can't update Macports (with Mac OS X Mavericks)
...ate, and resolved it by doing a fresh installation of MacPorts from http://www.macports.org/install.php. Now I can run the selfupdate command without error and install other ports.
The error I were seeing was below, it seems the same problem as Yo Sophia has pointed out:
$ sudo port selfupdate
Pas...
What does PHP keyword 'var' do?
...
I quote from http://www.php.net/manual/en/language.oop5.visibility.php
Note: The PHP 4 method of declaring a variable with the var keyword is still supported for compatibility reasons (as a synonym for the public keyword). In PHP 5 before 5...
Best approach for GPGPU/CUDA/OpenCL in Java?
...o technically you can't write kernel code from Java. There is JCUDA http://www.jcuda.de/jcuda/JCuda.html, it provides you with cuda's apis for general memory/device menagement and some Java methods that are implemented in CUDA and JNI wrapped (FFT, some linear algebra methods.. etc etc..).
On the ...
Using ls to list directories and their total sizes
...xr-xr-x 2 root root 4.0K Feb 12 16:43 cgi-bin
drwxrws--- 6 root www 20M Feb 18 11:07 document_root
drwxr-xr-x 3 root root 1.3M Feb 18 00:18 icons
drwxrwsr-x 2 localusr www 8.0K Dec 27 01:23 passwd
...