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nginx error connect to php5-fpm.sock failed (13: Permission denied)

...or /etc/php/7.0/fpm/pool.d/www.conf, depending on your version. Uncomment all permission lines, like: listen.owner = www-data listen.group = www-data listen.mode = 0660 Restart fpm - sudo service php5-fpm restart or sudo service php7.0-fpm restart Note: if your webserver runs as user other than...
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Why is January month 0 in Java Calendar?

...e. I doubt whether anyone outside the original implementation team could really state reasons - but again, I'd urge readers not to worry so much about why bad decisions were taken, as to look at the whole gamut of nastiness in java.util.Calendar and find something better. One point which is in favo...
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Jenkins Git Plugin: How to build specific tag?

... out to be critical. Although it seemed the git repositories were fetching all the remote information by default when I left it blank, the Git plugin would nevertheless completely fail to find my tag. Only when I explicitly specified "get the remote tags" in the Refspec field was the Git plugin able...
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Difference between Key, Primary Key, Unique Key and Index in MySQL

...would use indexes to improve the speed of data retrieval. An index is typically created on columns used in JOIN, WHERE, and ORDER BY clauses. Imagine you have a table called users and you want to search for all the users which have the last name 'Smith'. Without an index, the database would have t...
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Difference between UTF-8 and UTF-16?

...c. occupy one byte which is identical to US-ASCII representation. This way all US-ASCII strings become valid UTF-8, which provides decent backwards compatibility in many cases. No null bytes, which allows to use null-terminated strings, this introduces a great deal of backwards compatibility too. UT...
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isset() and empty() - what to use

... check - is variable empty or contains something. To solve this task, I usually do the following. 6 Answers ...
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What is the most frequent concurrency issue you've encountered in Java? [closed]

...are not synchronized this is not guaranteed to work. This mistake is especially devilish as in 99.999% it won't matter in practice as the reader thread will eventually see the change - but we don't know how soon he saw it. s...
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Use of .apply() with 'new' operator. Is this possible?

...CMAScript5's Function.prototype.bind things get pretty clean: function newCall(Cls) { return new (Function.prototype.bind.apply(Cls, arguments)); // or even // return new (Cls.bind.apply(Cls, arguments)); // if you know that Cls.bind has not been overwritten } It can be used as foll...
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Delete fork dependency of a GitHub repository

How can I make GitHub forget or disassociate that my repo was originally a fork of another project? 6 Answers ...
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How do I measure request and response times at once using cURL?

...me="curl -w \"@$HOME/.curl-format.txt\" -o NUL -s " Then you can simply call... curltime wordpress.org Thanks to commenter Pete Doyle! Make a Linux/Mac stand-alone script This script does not require a separate .txt file to contain the formatting. Create a new file, curltime, somewhere in ...