Php function to obtain the online ip address and client ip address
/**
* Obtain the client ip address
* @ Return [string] [description]
*/
Function getclientip (){
$ Ip = null;
If (isset ($ _ server ['http _ x_forwarded_for ']) {
$ Arr = explode
IP segmentation class for IP acquisition and judgment of PHP
Class Ip {
/*** Take IP* @return String*/public static function get () {if ($_server[' http_client_ip '] $_server
[' Http_client_ip ']!= ' unknown ') {$ip = $_server[' http_client_ip '];} elseif ($_server[' htt
Ec (2); obtain the user's IP address and determine the real IPfunctiongetIp () { nbsp; if ($ _ SERVER [HTTP_CLIENT_IP]) nbsp; nbsp; { nbsp; return $ _ SERVER [HTTP_CLIENT_IP]; nbs script ec (2); script
Obtain the user IP address and determine the real IP AddressFunction getIp (){If ($ _ SERVER ['HTTP _ CLIENT_IP ']){Return $ _ SERVER ['HTTP _ CLIENT_IP '];}
IP address selection is one of the most important functions. A simple process for IP layer processing. Optional data packets can be generated by the local host or another host. In the latter case, the host must be configured as a router; otherwise, the datagram received through the network interface will be discarded If the destination address is not the local machine. Steps for searching a route table by
PHP code used to restrict access to IP segments and prohibit IP address submission forms. Recently, the code for PHP to restrict access to IP segments and prohibit the submission of IP forms has found that a netizen from Yunnan often posted some spam comments on the fire network, because the dede php of www.veryhuo.com
In linux, You Can batch modify the IP content in an IP file containing a large amount of data and deduplicate the content.
As an apprentice in linux, I shared my experiences in solving this small problem. I used a small skill to solve this problem and found that linux terminals are very powerful, the following describes the problem in detail and the solution.
Problem description: To analyze logon
Count the top 10 ip addresses for web access and 10 ip addresses for web Access
Cat access. log | awk '{print $0}' | sort | uniq-c | sort-nr | head-n 10
Jsp statistics of daily traffic by Ip Address
1. Create a table with the field id (number), ip (ip address), and time
Set static IP addresses and static IP addressesSet IP$ Sudo vi/etc/network/interfacesAutoloIface lo inet loopbackAdd the following contentAutoeth0Iface eth0inet staticAddress192.168.0.221 Netmask00000000255.0Gateway192.168.0.1 Save and disable gedit.In this way, the IP address does not take effect immediately. Need to
Configure static IP addresses for virtual machines and static IP addresses for virtual machines
Use VMware to configure Virtual Machine static IP addresses
1. After the virtual network is installed, select Edit> Virtual Network editor on the menu bar to open the virtual network editor dialog box and selectVmnet8 NetSet the subnet
Recently the company's website is frequently accessed by competitors with crawlers, so we have to prohibit these crawler access, we can through the Nginx command to achieveMethod One: The IP is sealed directly on the LB machine1. Add the IP or IP port to be shielded in the blocksip.conf file$ sudo vim/etc/nginx/blocksip.confdeny 180.168.74.26;deny 91.212.45.0/24;
PHP implements the method of limiting IP Access, and php implements ip Access
This article describes how to restrict IP Access in PHP. We will share this with you for your reference. The details are as follows:
// Obtain the client ipif (getenv ("HTTP_CLIENT_IP") $ ip = getenv ("HTTP_CLIENT_IP"); else if (getenv ("HTTP
Background:In the Excel column, there are multiple net-block, sorting these net-block by their size from small to large by IP address (v4).Idea:IPV4 address format is dotted decimal, that is, each point before the number has its own corresponding power value, as long as the right to find this value, and then the IP address "." Separately, multiplied by their weights, you can get a single
Linux System Dynamics IP acquisition and Static of addresses IP configuration of the addressToday in Linux The system has done the following experiments in this experiment encountered in the knowledge points and the experimental process is as follows#- 1 . Broadcast protocol options [Bcast] broadcast specify IP address. Use local
Tags: img blog size POS address first Inux Gate classA graphical interface configuration (assumed to be computer a)If your Linux installation has a graphical interface, configure it in the following ways:I have two network card, the first network card has been configured by DHCP in the previous article: Linux minimized post-installation IP configuration (DHCP get IP address)First block of Wonka:Take a look
RedHat in Linux
Modify IP Address:Edit file/etc/sysconfig/network-scripts/ifcfg-eth0Device = eth0 // device name, do not modifyBootproto = static // do not modifyBroadcast = 10.10.22.255 // broadcast address, which is generally the last IP address of the network segmentIpaddr = 10.10.22.145 // ip addressNetmask = 255.255.255.0 // Subnet MaskNetwork = 10.10.22.0 /
Linux Command ip, linux Command ip
Ip command syntax
ip [OPTIONS] OBJECT {COMMAND | help}OPTIONS is an option for modifying ip behavior or changing its output.
-V: print the ip version and exit-s: output more detailed information.
Java obtains the real ip address of the client, and java obtains the ip address
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 cannot be obtained through reverse proxy software such as Apache and Squid. Like a
/**
* Get city name based on IP address pure IP database
* edit:bbs.it-home.org
*/
function Convertip ($IP) {
IP Data File path
$dat _path = ' QQWry.Dat ';
Check IP Address
if (!filter_var ($
IP Phone cross-network IP Phone configuration (STEP): 1. Add the interfaces connected to the two switches to the voice VLAN. 2. Ensure layer-3 connectivity between the two routers. 3. automatically assign an IP address to the IP Phone. DHCP must be enabled for both routers. 4. Enable the telephone service of the route
Before that, if you do not understand the IP sharding technology, refer to here. The IP sharding technology is simple and violent, and it is not as complicated as the TCP window protocol. Basically, the code is basically in ip_defragment.c.
Let's talk about it in general. First, each IP address (host) will have an IP s
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