with socks and then sniffer. I know a rough idea, in fact, it is very easy to compile a program. The key is that the rfc protocol is ambiguous, so it is easy to understand.
Socks4 and socks4a only Proxy tcp.
Socks4
For example, ie can directly use socks proxy, but ie can only use sock4 proxy, even though I still use the latest ie9. For example, if ie wants to
Full codePackage com.proj.net;//Import encoded JAR file import It.sauronsoftware.base64.base64;import Java.io.bufferedinputstream;import Java.io.bufferedreader;import Java.io.inputstreamreader;import Java.net.httpurlconnection;import java.net.URL;/** * Many companies will restrict the Internet by proxy server and password to connect to the extranet. Back to code:200,ok!Exception
How to set up proxy in Internet Explorer
1. Proxy setting methods in IE4.0:
Select "View" → "internet Option" → "Connect" → "access internet via Proxy Server" on main menu, then fill in the proxy server address and port you find,
Win8 The LAN proxy server is set up as follows:
1, click on the lower left corner of the screen IE icon, open the browser, ie in the upper right corner of the small gear Open pinion icon, click Select Internet Options.
2. Click the "Connect" tab in the Internet option. Choose "LAN Settings" first.
3. In the local area network (LAN) settings, check the checkmark before using the
Article Title: instances teach you how to create proxy servers in Linux. Linux is a technology channel of the IT lab in China. Some basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source are included. before setting up, let's take a look at the characteristics of proxy servers. Let's understand the prox
address has been unchanged, the external network computer sends the packet, the NAT will change the destination address, the source address has been unchanged. Proxy ServerPrincipleThere are many kinds of proxy servers, in general there are http,ftp,socks () agent three, which is divided into transparent proxy and opaque pro
each other, after a process exits, the other processes are still working, the service will not be interrupted, the master process will soon start a new worker process. Of course, the worker process unexpectedly exits, must be the program has a bug, the exception exits, will cause all requests on the current worker to fail, but does not affect all requests, so reduces the risk. Of course, there are many advantages, we can slowly understand.Summary:Of course, Nginx is so high performance, there a
MySQL Proxy Server Setup (read/write separation)Lab Environment:Physical connection between all hosts is normalthe database service on the 2 database server is functioning correctly, and a library with the same name as the same table is established during the period, but the content is different to verifyStop The database service on the MySQL
Squid agent is divided into "forward proxy" and "reverse proxy".The "Forward proxy" is mainly used for proxy users to access the external network, to manage the user's access behavior and to save the bandwidth (the/data/cache directory holds the cache of user access, and when other users access the same resource again,
WinGate
Wingate can be regarded as proxy server Software "veteran", the performance is very mature, can provide a large number of agent services, the function is very powerful. The latest version is now 5.0.1. Wingate provides more than 10 of protocols for the majority of applications on the Internet, the server performance requirements are not high, can run on
SSL certificate configuration for Nginx1. Use OpenSSL to realize Certificate centerbecause you are using OpenSSL to set up a private certificate center, make sure that the following fields are the same in Certificate Center certificates, server side certificates, client certificates
Country name
or province name
locality name
organization Name
organizational unit name
Country name
or province name
locality name
organization Name
organ
multiplexing I/O: In order to support a large number of connections, many Web servers use this structure, in the reuse fabric, while monitoring all connection activities, when the connection state changes (with data, or errors), the connection is assigned to the thread processing, after processing is completed, the connection is returned to the list of connections, Threads or processes are not bound on idle connections.Multiplexed multi-threaded Web server
to the target server using post. * * @param request * @param response * @param targeturl * @throws IOException */private void post (HttpServletRequest request, httpservletrespons E response, String TargetUrl) throws ioexception {URL url = new URL (targeturl); HttpURLConnection conn = (httpurlconnection) url.openconnection ();//The Send POST request must be set to the following two lines conn.setdooutput (true); Conn.setdoinput (True); Conn.setrequ
Proxy Server:
It's easy to connect to the server and then ask for the full URL (of course, on the other server).
Cases:
Objwinsock.remotehost = "Kqky.com"
Objwinsock.remoteport = 80
Objwinsock.connect
And then:
Strcmd = "Get Http://www.microsoft.com/default.htm" "http/1.0" VbCrLf
Strcmd = strcmd "User-agent:white"
Haproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications to support virtual hosts, a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded, which typically require session maintenance or seven-tier processing. Haproxy is running on the current hardware and can support tens of thousands of concurrent connections altogether. and its operating mode makes it easy and secure to integrate into your current archit
Preface:
This document describes how to use squid and squidGuard to configure proxy servers in linux. The www Proxy service is used as an example to describe how to filter harmful sites and restrict users' access to the internet.
I. IntroductionSquid is the most popular agent server software in Linux. It has powerful functions and supports proxies for HTTP, FTP,
This is actually the same as configuring the HTTP proxy, I did not use the support of the Squid version of SSL, so repeatedly toss does not work!
First have to check if you are using the Squid version is to support SSL, mainly to see if the Squid\sbin\ssleay32.dll file exists, if there is no this file that will have to switch to support the squid version of SSL.
I'll just provide the simplest example here:
Copy Code code as follows:
AC
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