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Proxy mode provides a proxy object for an object and controls the reference to the source object by the proxy object. An agent is an action taken by one person or institution on behalf of another person or institution. In some cases, the customer does not want or cannot directly reference an object. The proxy object ca

: This article mainly introduces Nginx forward proxy and reverse proxy. For more information about PHP tutorials, see. Three roles Client Proxy Server Target server Forward proxy The target server is visible to the client (whether or not the proxy server exists

About the agent, read some of the content, but the talk is particularly around, good confused. Suddenly understand, just don't know right forward proxy settings in the client, proxy server instead of the client to access the application server in the client settings agent, access to the normal access to the site. Servers can only find the proxy server layer, and

Proxy mode:Using an environment that cannot directly use object A (a delegate object), you can use object B (the proxy object) to call object A that has reached the effect of calling object a directly, and becomes the proxy mode.Where a is the delegate object and B is the proxy object.Advantages and disadvantages of st

The proxy mode provides an agent or placeholder for an object to control access to the object. Image ProxyThe design of using proxy mode is sometimes very fragile, and they rely on forwarding methods to invoke their underlying objects. Forwarding can create a design that is very fragile and requires frequent maintenance.The load () method uses the JFrame object as a parameter to make a callback after the sp

Design Pattern-dynamic proxy pattern, design pattern dynamic proxyDynamic proxies are used in many underlying frameworks, such as struts and Spring. Dynamic proxy is mainly used to enhance the method, so that you can enhance some methods without modifying the source code, and do anything you want to do before and after the method is executed, becauseInvocationHandlerIn the invoke method, you can directly ob

Use Python to crawl available proxy IP addresses and python to crawl proxy ip addresses Preface Take the latest free proxy IP website as an example: http://www.xicidaili.com/nn /. Many IP addresses cannot be used. So I wrote a script in Python, which can detect available proxy IP addresses. The script is as follows: #

Reproduced http://www.zeroport.net SummaryArticleThis article describes how Castle's dynamic proxy implements AOP. I have always been "tailism", that is, just use it, no matter how it is implemented. Recently, I have been paying close attention to AOP, Io C, and other technologies because I want to add them to the project. Later, dynamicproxy in the castleproject was selected as the object of interest. However, I was greedy this time and didn't wa

What is HTTP Proxy: www is no longer familiar to anyone on the Internet. www connection requests use the http protocol, so we are browsing the Web page, to download data (or use the ftp protocol), you can use an http proxy. It is usually bound to ports 80, 3128, and 8080 of the proxy server. What is socks Proxy: cor

Squid + MRTG implement complete cache proxy and HTTP service acceleration proxy By mirolers Author: zitianxingTime: 2002-9-25Source: www.hackerabc.com Squid is an open source code high-performance Proxy Cache Server. It supports proxy for FTP, Gopher, and HTTP data objects. In addition, squid also supports SSL, divers

What is Nginx?Nginx (engine x) is a high-performance HTTP and reverse proxy server, also a IMAP/POP3/SMTP server.Nginx is a lightweight Web server/reverse proxy server and e-mail (IMAP/POP3) proxy server that is released under a bsd-like protocol. It is characterized by the possession of less memory, concurrency is strong, in fact, nginx concurrency is actually i