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高并发服务端分布式系统设计概要 - C/C++ - 清泛网 - 专注C/C++及内核技术
...拆分），并时刻不要忘记备份、扩展、意外处理等讨厌的问题。说起来都比较简单，但设计和实现起来，就会比较困难。以前我的文章，都是“从整到零”的方式来设计一个系统，这次咱们就反着顺序来。
那我们首先来看，我...
Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req
...ferent domain than your page is on. So the browser is blocking it as it usually allows a request in the same origin for security reasons. You need to do something different when you want to do a cross-domain request. A tutorial about how to achieve that is Using CORS.
When you are using postman the...
In php, is 0 treated as empty?
...
http://php.net/empty
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a variabl...
IIS配置常见问题汇总（持续更新 ） - 环境配置 - 清泛IT论坛，有思想、有深度
1. HTTP 错误 404.3 - Not Found
由于扩展配置问题而无法提供您请求的页面。如果该页面是脚本，请添加处理程序。如果应下载文件，请添加 MIME 映射。
原因：没有安装IIS的ASP.NET组件
解决：添加/删除程序，IIS，勾选安装“.net扩...
SimpleTest vs PHPunit
...here again even so I already did it on some other (newer) questions.
I'm really really baffled that SimpleTest still is considered an alternative to phpunit. Maybe i'm just misinformed but as far as I've seen:
PHPUnit is the standard; most frameworks use it (like Zend Framework (1&2), Cake, Aga...
Chrome, Javascript, window.open in new tab
...pup’) by specifying options in the 3rd parameter
3. If the window.open call was not part of a user-initiated event, it’ll open in a new window.
4. A “user initiated event” does not have to the same function call – but it must originate in the function invoked by a user click
5. If a use...
How to get GET (query string) variables in Express.js on Node.js?
...eJS, you can access req.url and the builtin url module to url.parse it manually:
var url = require('url');
var url_parts = url.parse(request.url, true);
var query = url_parts.query;
share
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improve...
Loading cross-domain endpoint with AJAX
... API URL. (Supports https: see github repository)
If you want to automatically enable cross-domain requests when needed, use the following snippet:
$.ajaxPrefilter( function (options) {
if (options.crossDomain && jQuery.support.cors) {
var http = (window.location.protocol === 'http:'...
Secure hash and salt for PHP passwords
It is currently said that MD5 is partially unsafe. Taking this into consideration, I'd like to know which mechanism to use for password protection.
...
VM 磁盘空间扩容引起的一些问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
VM 磁盘空间扩容引起的一些问题TOP如下存储分区如下ESX1下挂载情况如下图ESX2下挂载情况如下图现在有个需求，lun60的空间偏大，缩小为1T，LUN80的空间偏小，扩大为1.5T先...TOP 如下
存储分区如下
ESX1下挂载情况如下图
...