We often record audit logs. How can we obtain the real IP address of the client? Let's take a look at the HTTP header. Before discussing how to obtain the Client IP address, we first understand the following three meanings: REMOTE_ADDR, HTTP_CLIENT_IP, HTTP_X_FORWARDED_FOR REMOTE_ADDR is the
Use of http_x_forwarded_for and remote_addr in PHP1. remote_addr: IP address of the user's computer browsing the current page2. http_x_forwarded_for: view the gateway of the user's computer on the current page3. http_client_ip: Client IP AddressUse $ _ server ["remote_addr"] in PHP to obtain the IP
The local address proxy and NAT hosting questions in this article are somewhat suspicious and some are incomprehensible! However, if I say a simple and basic principle, you will not be confused, that is, the address of your outer router's Internet port is not assigned to you, only the Intranet address of your external
How to obtain the real ip address of the client? I want to know how to get the real IP address of the client. I think everything on the Internet is available. Is there any authoritative document or statement? Which of the following statements are popular on the Internet? 1. if the
issues that this user needs to understand, that is to say, it only introduces some typical Internet sharing types from the Internet sharing mechanism, which is also the key to the Internet sharing solution.
1. Introduction to Internet sharing
There are multiple ways to share the Internet. Which of the following is more suitable depends on the application environment. In general, Internet sharing can be divided into three types: Gateway, proxy
The x-forwarded-for variable in the request header is required to obtain the user's real IP address.Request.getheader ("X-forwarded-for");The complete example is as followsString Realip = Request.getheader ("X-forwarded-for");String IP = request.getremoteaddr ();enumeration enum = Request.getheadernames ();while (Enum.hasmoreelements ()){String name = (string) enum.nextelement ();String value = Request.geth
network segments. 2. Automatic SetupAutomatic Setup is the use ofDHCP (Dynamic Host configuration Protocol) serverThe computer from the network is assigned an IP address, subnet mask, and default gateway. The advantage of this is that once the default gateway for the network changes, all computers in the network get the IP a
1, HTTP://WWW.XICIDAILI.COM/WT domestic free agent website
2, using Scrapy crawl the site's IP address and port, write txt document
3, write script test txt document IP address and port is available
4, the available IP address and
Everyone good, I believe that we have used proxy IP over the network, but some IP one or two days expired. To one of the manual to try to open ie, shut down IE, how annoying ah.
It would be nice to have this article. We can use Httpwebrequest,httpwebresponse to proxy verification, thank you for your comment guide!
Oh
4. Proxy server allocation Although the NAT address translation method is good, it also has its own shortcomings. Simply put, you can only perform IP address translation simply, but cannot implement file caching. This reduces Internet access traffic and prevents fast Internet access. The
This article mainly introduces the PHP to obtain the client real IP address of the method, has a certain reference value, now share to everyone, the need for friends can refer to
PHP Gets the client IP address in four ways, these five methods are REMOTE_ADDR, Http_client_ip, Http_x_forwarded_for, Http_via, respectivel
The Client IP address needs to be obtained in the project, and relevant information is searched on the Internet. Here I will summarize some of my usage.For future reference.Generally, we obtain the IP address through the following code:String IP = system. Web. httpcontext. C
Each proxy address includes the following information: IP address, service port, service type, verification status, local connection time, and Note!For example, 10.48.72.2: 80 @ HTTP $6 263,1987, 2543 # Harbin10.48.72.2 indicates that the IP
4. Proxy server allocation
Although the NAT address translation method is good, it also has its own shortcomings. Simply put, you can only perform IP address translation simply, but cannot implement file caching. This reduces Internet access traffic and prevents fast Internet access.
The
Note: The content in this article is based on my blog posts and materials in the MSDN discussion area on the blog Park, which can be obtained through actual tests,There are few original content to tell the truthAnd write this article to record what you have done in the project. The referenced blog posts and their authors are mentioned below.Later, I will learn more about HTTP, TCP/IP, and other knowledge. I will discuss this in depth here.
I. Terms
Fi
Simple regular expression exercises to crawl the proxy IP.Only the first three pages are crawled, the IP address and port are filtered out using regular matching, and the Validip dictionary is stored as key and value respectively.If you want to determine whether the proxy IP
In Java, HttpRequest is used to obtain the real IP address of the user.
In JSP, the method for obtaining the Client IP address is request. getRemoteAddr (), which is valid in most cases. However, the real IP address of the client
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