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通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...统当前状态的参数，例如 /proc/sys/kernel/pid_max，/proc/sys/net/ipv4/ip_local_port_range 等等，从文件的名字大致可以猜出所限制的资源种类。由于该目录下涉及的文件众多，在此不一一介绍。有兴趣的读者可打开其中的相关文件查阅说明...
SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0
...aled that during the TSL/SSL Hello the warning
Alert (Level: Warning, Description: Unrecognized Name), Server Hello
Was being sent from the server to the client.
It was only a warning, however, Java 7.1 then responded immediately back with a "Fatal, Description: Unexpected Message", which I assume m...
What resources are shared between threads?
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From Wikipedia (I think that would make a really good answer for the interviewer :P)
Threads differ from traditional
multitasking operating system
processes in that:
processes are typically independent, while threads ...
Where does Jenkins store configuration files for the jobs it runs?
...ns installation folder, you could create a simple jenkins job and run a script that tars all the config files for the jobs: "tar -zcvf jenkins-jobs-configs.tar.gz $(find ${JENKINS_HOME}/jobs -name config.xml -maxdepth 2) ". You could then archive jenkins-jobs-configs.tar.gz
– ...
How can I find out if I have Xcode commandline tools installed?
... answered Jan 22 '14 at 1:50
P iP i
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Why would $_FILES be empty when uploading files to PHP?
...d be 100M not 100MB.
Make sure your <form> tag has the enctype="multipart/form-data" attribute. No other tag will work, it has to be your FORM tag. Double check that it is spelled correctly. Double check that multipart/form-data is surrounded by STRAIGHT QUOTES, not smart quotes pasted in fro...
Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I
... always better to use Temp tables. Here is a nice blog article on it mssqltips.com/sqlservertip/2825/…
– gh9
Jan 25 '14 at 21:59
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GCM with PHP (Google Cloud Messaging)
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This code will send a GCM message to multiple registration IDs via PHP CURL.
// Payload data you want to send to Android device(s)
// (it will be accessible via intent extras)
$data = array('message' => 'Hello World!');
// The recipient registration tokens...
How to remove .htaccess password protection from a subdirectory
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@JessTelford good use of the code snippet. @RageZ +1 for answer that worked for me. Could you edit the answer to be super simple and post it using the code snippet method. Otherwise someone will have to think thanks
– Jesse Burcsik
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In Docker, what's the difference between a container and an image? [duplicate]
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The glossary description makes sense, but in no way I can relate the following definition from the docker tutorial to that: A container is a stripped-to-basics version of a Linux operating system. An image is software you load into a container...