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9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...port 22 -m state --state NEW,ESTABLISHED -j ACCEPT
类似的，对于HTTP/HTTPS(80/443)、pop3(110)、rsync(873)、MySQL(3306)等基于tcp连接的服务，也可以参照上述命令配置。
对于基于udp的dns服务，使用以下命令开启端口服务：
iptables -A OUTPUT -p udp -o ...
Validate decimal numbers in JavaScript - IsNumeric()
...eight: 100% !important; top: 0; }
I borrowed that regex from http://www.codetoad.com/javascript/isnumeric.asp. Explanation:
/^ match beginning of string
-{0,1} optional negative sign
\d* optional digits
\.{0,1} optional decimal point
\d+ at least one digit
$/ match end of string
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Loading and parsing a JSON file with multiple JSON objects
...his question) elegantly handles files with one json document per line. see https://jsonlines.readthedocs.io/
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How do I break out of a loop in Scala?
...ld skip the whole loop.
Scala 2.8 however includes a way to break
http://www.scala-lang.org/api/rc/scala/util/control/Breaks.html
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Android: I am unable to have ViewPager WRAP_CONTENT
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I based my answer on Daniel López Lacalle and this post http://www.henning.ms/2013/09/09/viewpager-that-simply-dont-measure-up/. The problem with Daniel's answer is that in some cases my children had a height of zero. The solution was to unfortunately measure twice.
@Override
protected ...
What are attributes in .NET?
...what they're good for... there are almost limitless uses for them.
http://www.codeproject.com/KB/cs/dotnetattributes.aspx
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Is Dvorak typing appropriate for programming? [closed]
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There are Dvorak layouts specifically for programming: http://www.kaufmann.no/roland/dvorak/
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How to use C++ in Go
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Seems that currently SWIG is best solution for this:
http://www.swig.org/Doc2.0/Go.html
It supports inheritance and even allows to subclass C++ class with Go struct so when overridden methods are called in C++ code, Go code is fired.
Section about C++ in Go FAQ is updated and now me...
Is Safari on iOS 6 caching $.ajax results?
...currentTime = new Date();
var n = currentTime.getTime();
postUrl = "http://www.example.com/test.php?nocache="+n;
$.post(postUrl, callbackFunction);
I wasted a few hours figuring this out. It would have been nice of Apple to notify developers of this caching issue.
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Enable the display of line numbers in Visual Studio
...; Options -> Text Editor -> All Languages -> check Line Numbers
https://msdn.microsoft.com/en-us/library/ms165340.aspx
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