This site is relatively simple, so the first example of a crawler code is as follows:
#-*-Coding:utf-8-*-"Created on June 12, 2017 get dynamic IP information from the domestic high stealth proxy IP website @see: HTTP://WWW.XICIDAILI.COM/NN/1 @author: Dzm ' ' Import sys reload (SYS) sys.setdefaultencoding (' UTF8 ') import scrapy from pyquery import pyquery as
This article mainly introduces PHP to check whether the client uses the proxy server and its anonymous level. if you need a friend, you can refer to it to determine whether the client uses the proxy server, it can be determined by the environment variable information sent by the client.
Specifically, it refers to the
$fastcgi_path_info; includeFastcgi_params; } #再解析PHP, there will be a parsing error like 500}By the way, another CI under the nginx jump rule (because Nginx does not support multi-conditional judgment, the variable is judged):Set$ci0;if(!-f$request _filename) {Set$ci"${ci}a";}if(!-d$request _filename) {Set$ci"${ci}b";}if($uri!~ "^ (index.php|images|robots.txt)") {Set$ci"${ci}c";}if($ci= "0ABC") {rewrite^/(. *) $/index.php/$1Last ;}There is a picture of the truth:The implementation of the
Experimental purposes:
Verify the difference between the default route next hop and the IP on the end.
Experiment topology:
Configuration:
R1:
Interface fastethernet0/0IP address 123.1.1.1 255.255.255.0!IP Route 0.0.0.0 0.0.0.0 fastethernet0/0
R2:
Interface fastethernet0/0IP address 123.1.1.2 255.255.255.0!Interface FASTETHERNET0/1IP address 24.1.1.2 255.255.255.0
R3:
Interface fastethernet0/0IP
To determine whether the client uses a proxy server, you can determine from the environment variable information sent by the client.
Specifically, it refers to the HTTP_VIA field. If this field is set, the client uses the proxy server.
The anonymous level can be determined by referring to the following table.
Give an a
certificaterequest.servervariables["Cert_cookie"]Unique Client Certificate ID numberrequest.servervariables["Cert_flag"]Client certificate, if there is a client certificate, BIT0 is 0 if the client certificate validation is not valid, Bit1 is set to 1request.servervariables["Cert_issuer"]The Publisher field in the user certificaterequest.servervariables["Cert_keysize"]The number of bits of the Secure Sockets Layer connection key, such as 128request.servervariables["Cert_secretkeysize"]The
This example of this article has shared the check Agent IP validity PHP code, stability, such as error rate and query usage
/** +-----------------------------------------------------------------------------* Check Agent IP information validity +----------------- ------------------------------------------------------------* @param string $proxy _ip [117.95
the proxy server to create a server pool for load balancing. At this point, the proxy server can be on either side of the firewall. If the Web server receives a large number of requests per day, you can use a
the proxy server to create a server pool for load balancing. At this point, the proxy server can be on either side of the firewall. If the Web server receives a large number of requests per day, you can use a
Installing squidSome distributions will be preinstalled with squid services, while others may not.# Yum Install SquidProxy Server OverviewSquid provides cache acceleration, application-level filtering control capabilities. When a client requests a Web page through a proxy, the specified proxy server checks its own cach
C #: The WebBrowser control sets the proxy IP address to access the website [with source code ],Download Software source code
Http://download.csdn.net/detail/php_fly/8041731
In the C language, what is the symbol (->) and how to use it?
This is a symbol in the struct pointer. Write a program to explain it, for example:# Include Struct STU // define a struct{Int num;} Stu;Int main (){Struct STU * p; // define
1) Modify the Haproxy configuration file and add the following parameters:Option Httpcloseoption forwardfor2) Modify the Nginx configuration file, add the following parameters Note: You need to compile the module--with-http_realip_module#haproxy服务器IPset_real_ip_from 192.168.64.128;real_ip_header x-forwarded-for;real_ip_recursive on;3) Restart Haproxy and Nginx respectively/etc/init.d/haproxy Restart/etc/init.d/nginx RestartThis article is from the "ˉt, Stand Wentao ┃﹎" blog, please be sure to ke
certificaterequest.servervariables["Cert_cookie"]Unique Client Certificate ID numberrequest.servervariables["Cert_flag"]Client certificate, if there is a client certificate, BIT0 is 0 if the client certificate validation is not valid, Bit1 is set to 1request.servervariables["Cert_issuer"]The Publisher field in the user certificaterequest.servervariables["Cert_keysize"]The number of bits of the Secure Sockets Layer connection key, such as 128request.servervariables["Cert_secretkeysize"]The
I. basic configuration
Configure two NICs for the Squid Proxy Server
WAN: eth0: 10.10.10.200 gateway and DNS must be configured to allow Internet access
LAN: eth1: 172.161.254 do not need to configure gateway or DNS
Clinet: 172.16.1.2/24 gateway and DNS need to be configured
Squid (proxy) Port: 3128
System
Host Name
Server
is not easy to expose his identity.
The anonymity of an HTTP proxy means that the HTTP proxy server hides the original user's IP address and other details from the remote server by deleting the identity attribute in the HTTP message (such as the client's
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