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How to configure PostgreSQL to accept all incoming connections
...cept incoming connections from any host of the above range.
Source: http://www.linuxtopia.org/online_books/database_guides/Practical_PostgreSQL_database/c15679_002.htm
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Should accessing SharedPreferences be done off the UI Thread?
...f an application wide variable is different from NULL, reason -> http://www.developerphil.com/dont-store-data-in-the-application-object/
The application object will not stay in memory forever, it will get killed. Contrary to popular belief, the app won’t be restarted from scratch. Android w...
Easy way to print Perl array? (with a little formatting)
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# better than Dumper --you're ready for the WWW....
use JSON::XS;
print encode_json \@some_array
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What is the dual table in Oracle?
...unction in a select statement:
e.g. select sysdate from dual;
See http://www.adp-gmbh.ch/ora/misc/dual.html
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invalid byte sequence for encoding “UTF8”
... a different source, consult the list of character encodings here:
http://www.postgresql.org/docs/8.3/static/multibyte.html
If you're getting it from a Mac, you may have to run it through the "iconv" utility first to convert it from MacRoman to UTF-8.
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Which Eclipse version should I use for an Android app?
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If you need to install or update Eclipse, you can download it from http://www.eclipse.org/downloads/. The "Eclipse Classic" version is recommended. Otherwise, a Java or RCP version of Eclipse is recommended.
April 2014 Updated
Eclipse Indigo (Version 3.7.2) or higher is required. I'll suggest...
client secret in OAuth 2.0
...cure.com/all-your-facebook-access-tokens-are-belong-to-us
and here https://www.youtube.com/watch?v=twyL7Uxe6sk.
All in all be extra cautious of your usage of third party libraries (common sense actually but if token hijacking is your big concern add another extra to cautious).
I have been ranting a...
How can I link to a specific glibc version?
...sing a glibc-new => glibc-old cross-compiler.
According to the http://www.trevorpounds.com blog post Linking to Older Versioned Symbols (glibc), it is possible to to force any symbol to be linked against an older one so long as it is valid by using the the same .symver pseudo-op that is used fo...
What is a stack trace, and how can I use it to debug my application errors?
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There is a JEP openjdk.java.net/jeps/8220715 that aims to further improve the comprehensibility of especially NPEs by providing details like "Cannot write field 'nullInstanceField' because 'this.nullInstanceField' is null."
– Mahat...
How to draw circle in html page?
...canvas> tag.
To draw circle in embedded SVG:
<svg xmlns="http://www.w3.org/2000/svg">
<circle cx="50" cy="50" r="50" fill="red" />
</svg>
Circle in <canvas>:
var canvas = document.getElementById("circlecanvas");
var context = canvas.getContext("2d");...