Let's analyze the word agent first. Agent
The agent was translated by proxy in English. We have seen in the life of agents, probably the most common is the circle of friends to sell facial mask classmate.
They take the goods from the factory and then advertise them in their circle of friends and sell them to acquaintances.
Logically speaking, customers can buy products directly from the manufacturers, but in real life, there are few such sales model.
Node development phase, generally used
httpModule to start a local server, easy to debug.
It's probably like this:
varrequire("http");var server = http.createServer();server.listen(8888);
So the question is, how do I deploy my application to the VPS? You can't use it http://10.88.77.66:8888 to access it? Yes, the title of the article is the solution.
My environment is roughly the same centos 6 lnmp一键部署 . As lnmp for how to operate, I will not write. Google for yourself
Suppose my domain name is
Turn: http://blog.csdn.net/shixing_11/article/details/7106241
I have always had no idea how to understand the reverse direction of the reflection proxy. After Baidu knows it, I finally figured out a little bit by combining the following figure. To put it simply, the forward direction is from a LAN to the server, and the reverse direction is from the client to a LAN.
Concept:
The reverse proxy method is to u
Static proxy
Package com.iter.devbox.staticProxy;
Public interface Star {public
void Sing ();
}
Package com.iter.devbox.staticProxy;
public class Realstar implements Star {
@Override public
void Sing () {
System.out.println this.getclass ( ). GetName () + ". Sing ()");
}
Package com.iter.devbox.staticProxy;
Public class Starhandler implements star {
private star Realstar;
Public Starhandler (Star Realstar) {
supe
"Original works, technical exchanges. Allow reprint, please be sure to use hyperlinks in the form of the original source of the article, author information. If there is any mistake, please correct me./**Author:lihaibodate:1/25/2016*/See a few better today about the writing Proxy server article (already at the end of the attached address), this article is a few good text after the change and the actual situation to explain the agent and agent working p
Agent this thing, really do not want to talk about, is estimated to be an iOS developer can skillfully use, with notification and block, all use of memorized.Here's a little talk about proxy extensions: implicit proxies and multicast proxies are actually very simple.Implicit proxy: It is no longer necessary to abide by the protocol when defining the properties of the protocol, and the class implementing the
The proxy mode involves 1. abstract role: Declares the common interfaces of real objects and proxy objects. 2. proxy role: the proxy object role contains a reference to the real object to operate on the real object. At the same time, the proxy object provides the same interf
Forward proxies and reverse proxies are named from the data flow direction, forward proxies, proxy user requests, reverse proxies, alternate server accept requestsForward Proxy: User-"proxy server-" WWW user request data to the proxy server, proxy server to help users go to
lot of sites are restricted access, this restriction is man-made, different serve to address the blockade is different. So can not access when a foreign proxy server to try.
4, improve access speed: Usually the proxy server sets a large hard disk buffer, when there is outside information passed, but also save it to the buffer, when other users access the same information, then directly from the buffer out
directly transmitted to the user's browser. Generally, the user's available bandwidth is small, but the proxy server with a large bandwidth can be connected to the target host, greatly improving the browsing speed and efficiency. More importantly, it provides security functions. By accessing the target host through the proxy server, you can hide the user's own I
> No proxySometimes I want to print some logs before and after some methods, so I have the following code.This is a method of handling float type addition, I would like to print a parameter before calling it, after the call to print the results of the calculation. (As for why not directly with the + number operation, see "Java" float calculation is inaccurate) Packagecom.nicchagil.study.java.demo.No09 Agent. No01 no proxy;ImportJava.math.BigDecimal; P
The concept of a forward proxyThe forward agent, the legendary agent, works like a springboard,To put it simply,I am a user, I cannot access a website, but I can access a proxy serverThis proxy server, he can access the site that I can't accessSo I first connected to the proxy server and told him that I needed the content that I could not access the siteProxy ser
a reverse proxy. in fact, proxy has not done anything different from before. it still forwards requests from the client to the actual client ., today, due to the extensive use of CDN, the servers behind reverse proxy use actual IP addresses to adapt to this cross-network architecture. in this way, it is more difficult for everyone to have a clear answer to the q
browser, and then a second thread is used in the background to load the large picture into the client. When you need to browse a large picture, the big picture is displayed in the new page. If the user is not finished loading work while browsing the larger map, you can start a thread to display the corresponding prompt. Through the agent technology combined with multi-threaded programming to put the real picture loading into the background to operate, does not affect the foreground picture brow
Very happy, now have time to write their own blog, now roughly write about the proxy mode it ...The same, as in previous sources, are learned from Marco Video.The so-called agent is one person or one body acting on behalf of another person or another body. In some cases, a client does not want or cannot refer directly to an object, whereas a proxy object can act as an intermediary before the client and the
server bandwidth is low;3.Cache: Before the user accesses the server from the client, someone has already accessed the target server through the proxy server, so that the cached data will be persisted in the proxy server, so the user can get data directly from the proxy server;4. The proxy server and the original serv
Proxy: Design modeA proxy is a common design pattern designed to provide a proxy for other objects to control access to an object. The proxy class is responsible for preprocessing the message for the delegate class, filtering the message and forwarding the message, and subsequent processing after the message is delegat
the proxy server, and sometimes the Gateway Information is filled)HTTP_X_FORWARDED_FOR = your real IP addressThis type of proxy server still forwards your information to your access object, which cannot hide your real identity.
III. normal Anonymous proxy server: Anonymous Proxies
REMOTE_ADDR =
different serve is different. So you can try another Proxy Server outside China when you cannot access it.
4. increase access speed: Usually the proxy server sets a large hard disk buffer. When external information passes through, it is also saved to the buffer, when other users access the same information again, the information is directly retrieved from the buffer and transmitted to the user to Improve
of view of the site, only in the proxy server to fetch the content when there is a record, sometimes do not know the user's request, but also hide the user's information, depending on the agent does not tell the site. The client must set up a forward proxy server, if you know the IP address of the forward proxy and t
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