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Overview
This report summarizes a pair of programming projects. I (Lin Meng) and Li yazhao jointly completed this project.
The goal of the project is to obtain the geographical location information of the user through the user's IP address when the user accesses the academic map, so as to reposition the map and set the location of the user as the center currently displayed. This function is available on
IP geolocation Query class
/**
File name: IpLocation.class.php
* IP Geo-Location query class (Master file I'm uploading it.) I upload a test file, and there is a QQWry.Dat this can be downloaded to the pure IP library because there are more than 6M so here do not upload it up.
*
Geolocation to get the latitude and longitude addressIn the past, if you want to obtain the location of the Internet users based on the user's IP address to obtain the geographical position, so that the data obtained and real data is very large deviation. To get a more precise position, you can use the HTML5 geolocation
This topic is a bit large, and I have to strictly control the number of words, not like the "Proposition composition: in a IPv4 address tree to thoroughly understand the IP routing table of the various search process" so open. In fact, this composition is an extension of the interval finding section in the previous essay.The 1.IP packet classification is the core
IP lookup domain name PHP source code. IP lookup domain names, usually bing's IP query function is used now, that is, IP: 222.222.222.222 is written as php code? Php call method $ resultgetResult (124.205.228.114); print _
Domain Name Lookup by IP address, which is usually an IP address query function of bing, that is, IP Address: 222.222.222.222Writing php code becomes// Call Method$ Result = getResult (
Original: https://redislabs.com/ebook/redis-in-action/part-2-core-concepts-2/ Chapter-5-using-redis-for-application-support/5-3-ip-to-city-and-country-lookupWhen we have collected statistical information and logs to Redis, we have collected information about the behavior of our system visitors. But we overlook an important part of visitor behavior-where do visitors come from? In this section we will build a set of functions to parse
650) this.width=650; "src=" http://imga.chrome001.com/article/201603/24/2145032eeekhcvevwinciu.png "border=" 0 " Class= "Shadow" alt= "My IP Address" style= "border:0px;vertical-align:middle;margin-bottom:0px;"/>Plugin Introduction:Many times we need to use the IP address, this noun may be known to everyone, but do you
View the error prompt in the system log as
2014/09/19 18:06:55 [4696] name lookup failed for 212.173.9.32:no address associated with hostname
The solution is because the main rsync configuration file does not have access to IP settings so access is denied.
Find the rsyncd.conf file in your installation directory
Hosts allow = Your
Jsp+jquery+google map shows the final resultsIn this article, readers will learn how to use the Spring MVC Framework and jquery and Google Maps to create a simple search application based on an IP location. The user can enter an IP address in the page and then show the approximate geographic location of the IP via Goog
Want to convert IPV4 address to real address, must refer to IP database, commercial IP database stored in relational database, query and use is very convenient, but the cost is not individual and small companies willing to bear, So the idea of simple application is to use some free
/Roman heritage]), then the lowest level will be 4000km long, just northeast Heilongjiang Mohe to Tibet Shigatse distance, if you read the whole picture, The equivalent of a trip to China ... So I can only draw part, because it is impossible to show the whole picture, so I do not need to shrink the node diameter to 1mm.Through this diagram, you will find that given an IP address, you can start from the root
the route through the destination address of the data packet, but also need to use other domains: the source address, IP protocol, transport layer port, and even the load of the data packet.This is called policy routing ).8.5. IP rule add -- Insert a new ruleIP rule Delete -- delete a ruleAbbreviation: add, A; delete,
193.233.7.82 dev eth0 src 193.233.7.65 RealmsInr.ac/inr.acCacheExample 1: Route a packet from the source address 192.203.80/24 by routing table Inr.ruhepIP ru add from 192.203.80/24 table Inr.ruhep Prio 220Example 2: Convert the source address of a datagram with a source address of 193.233.7.83 to 192.203.80.144 and route through table 1IP ru add from 193.233.7.
How do I find a local IP address?
Find a local IP address for users who are using a LAN, such as a router or switch, the most common is many people through the router share the Internet, for this situation to find a local IP addres
is used for direct connection to the host, and can be used by global. Not only does the IP address have the scope attribute, but also routes have the scope attribute.2. Which network port does the ARP request enter? ARP replies must be sent from the network adapter. For more information, see the arp_process function. Because the entry Dev is also part of the route look
';
}
Open IP Database
if (! $fd = @fopen ($dat _path, ' RB ')) {
Return ' IP data file not exists or access denied ';
}
The EXPLODE function decomposes the IP address, and the result of the integer form is calculated
$userip = Explode ('. ', $userip);
$useripNum = $userip [0] * 16777216 + $userip [1] * 65536 +
of last resort is not setC 192.168.1.0/24 is directly connected, fastethernet1/0C 192.168.2.0/24 is directly connected, fastethernet0/0C 192.168.3.0/24 is directly connected, serial/0O 192.168.4.0/24 [110/782] via 192.168.3.2, 00:00:15, serial/0R1 #R1 # conf tEnter configuration commands, one per line. End with cntl/Z.R1 (config) # Ip?Access-list named access-listDefault-network flags networks as candidates for default routesDHCP configure DHCP serve
System "]
2. Another geo_ip
Before using it, you need to register a user in the http://ipinfodb.com/and get your own key when activating it. You need to use your own key to access the interface of the website.
GitHub address: https://github.com/jeroenj/geo_ip
#209.85.227.104 = Google. be (US) geoip. geolocation ('2017. 85.227.104 ') # returns: {: Status => "OK",:
(! $fd = @fopen ($dat _path, ' RB ')) {
Return ' IP data file not exists or access denied ';
}
The EXPLODE function decomposes the IP address, and the integer result is computed.
$userip = Explode ('. ', $userip);
$useripNum = $userip [0] * 16777216 + $userip [1] * 65536 + $userip [2] * + + $userip [3];
Get IP
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