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开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明 - 开源 & Github - 清泛网 ...
开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明Jumpserver 是一款由python编写开源的跳板机(堡垒机)系统，实现了跳板机应有的功能。基于ssh协议来管理，客户端无需安装agent。 支持常见系统:
CentOS, RedHat, Fedora, Amazon Linux
Debian
SUSE, Ubunt...
Understanding checked vs unchecked exceptions in Java
...ethrow) should not be used at all. They were eliminated in C# for example, and most languages don't have them. So you can always throw a subclass of RuntimeException (unchecked exception)
However, I think checked exceptions are useful - they are used when you want to force the user of your API to t...
Cleaner way to do a null check in C#? [duplicate]
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In a generic way, you may use an expression tree and check with an extension method:
if (!person.IsNull(p => p.contact.address.city))
{
//Nothing is null
}
Full code:
public class IsNullVisitor : ExpressionVisitor
{
public bool IsNull { get; private set; }
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Please explain some of Paul Graham's points on Lisp
I need some help understanding some of the points from Paul Graham’s What Made Lisp Different .
4 Answers
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Convert line-endings for whole directory tree (Git)
...ks to toolbear, here is a one-liner that recursively replaces line endings and properly handles whitespace, quotes, and shell meta chars.
find . -type f -exec dos2unix {} \;
If you're using dos2unix 6.0 binary files will be ignored.
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Call AngularJS from legacy code
...using jQuery's .data function. This will speed your app up. Additionally, handing off your scopes to jquery's caching features will create memory leaks. So, you should definitely turn this off, to speed up your app. Angular's site has a production guide that you should use to learn more.
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How do I add 24 hours to a unix timestamp in php?
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303
You probably want to add one day rather than 24 hours. Not all days have 24 hours due to (among...
Evil Mode best practice? [closed]
I've been using Vim as my primary editor for years and tried Emacs several times during that time. Then I discovered Evil and decided that it meets my demand for speedy movement well enough that I can finally move on to Emacs.
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
I did a lot of searching and also read the PHP $_SERVER docs . Do I have this right regarding which to use for my PHP scripts for simple link definitions used throughout my site?
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How to specify HTTP error code?
...swered Apr 30 '14 at 17:19
Dan MandleDan Mandle
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