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
How does JSP obtain the real ip address of the client?
In JSP, the method for obtaining the Client IP address is request. getRemoteAddr (). This method is valid in most cases, but the real IP address of the client cannot be obtain
BOOTP. You must wait until the Administrator assigns it an IP address, manually write the booing between the IP address and the MAC address to the bootp configuration file.
DHCP (Dynamic Host Configuration Protocol)
(1) You can allocate
Let's talk about it. I also transferred it here, not to lie to PV, so it's easy for me to check it!There are bugs in the so-called "getting real IP addresses" method on the Internet, and the multi-layer transparent proxy is not taken into account.Most codes are similar:String IPaddress = (httpcontext. Current. Request. servervariables ["http_x_forwarded_for"]! = NULL Httpcontext. Current. Request. servervar
= oil server (COSL)Set menu2 = Head Office 1004Set menu3 = Western companySet menu4 = sun)Set menu5 = standbySet menu6 = standby@ REM sets the proxy server address to be used ================================ ================Set proxyservervalue = 10.68.200.233: 8080@ REM no need to use the address of the proxy server.
Www. nowamagic. netlibrarysvedadetail144REMOTE_ADDR can only obtain the IP address set in the visitor's local connection, for example, 10 configured on a college campus network. x. XXX. XXX series IP address. This function obtains the IP
Today test the Nginx reverse proxy function, let the Tomcat log to get the user real IP address, Google a bit, is an article content, copied the tomcat configuration file to modify the content, how can not get, magical! Helpless under, carefully read the copy of each line of content, found that the problem, it is estimated that if the search for the article, it i
connected to a, And ISN will be more than expected.
C sends a syn-encoded data segment request to A, but the source IP address is changed to B. A sends SYN + ACK data segments to B, and B cannot respond. The TCP layer of B simply discards A's send data segments. At this time, C needs to pause for a moment so that a has enough time to send SYN + ACK because C cannot see this package. Then C disguised B as
Python scrapy ip proxy settings, pythonscrapy
Create a python directory at the same level as the spider in the scrapy project and add a py file
# Encoding: UTF-8Import base64ProxyServer = proxy server address # My website is 'HTTP: // proxy.abuyun.com: 661'# Proxy tunnel v
In the Scrapy project, build a Python directory that is similar to the spider and add a py file with the contents below# Encoding:utf-8Import Base64ProxyServer = Proxy server address # #我的是 ' http://proxy.abuyun.com:9010 '# Proxy Tunneling Authentication Information This is the application on that website.Proxyuser = user NameProxypass = passwordProxyauth = "Bas
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
In web development, there are often needs, need to know the customer's current location (city), the general principle is this, first: through the Request object to obtain the remote user's IP address, second: third-party free (interface) services, through the IP to find out the user's city,I am good at JSP, the following we have JSP as an example:In the JSP, the
I. No proxy server is used:
Remote_addr = your IP addressHttp_via = no value or no displayHttp_x_forwarded_for = no value or no display
Ii. Transparent proxy server: transparent proxies
Remote_addr = IP address of the last Proxy S
I. No proxy server is used:
Remote_addr = your IP addressHttp_via = no value or no displayHttp_x_forwarded_for = no value or no display
Ii. Transparent proxy server: transparent proxies
Remote_addr = IP address of the last Proxy
Nginx performs load CDN acceleration to obtain the real ip address. when nginx does load to obtain the real ip address without using cdn, nginx configuration is as follows: Java code proxy_set_headerHost $ host; proxy_set_headerX-Real-IP $ remote _... nginx performs load CDN
However, the real IP address of the client cannot be obtained through reverse proxy software such as Apache and squid. If the reverse proxy software is used, the IP address obtained using the request. getremoteaddr () method is 12
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