ss7 over ip

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The connection of intranet IP extranet IP and the principle of accessing Internet

First, explain the concept of "intranet" and "Extranet": Intranet: That is to say the LAN, such as the school's local area network, the local area network each computer IP address in this local area network has the mutual opposite sex, is not repeatable. But the intranet IP in two LAN can have the same. Extranet: That is, the Internet, LAN through a server or a router external connection network, this

Penetrate the Intranet, connect to dynamic IP addresses, and penetrate the Intranet IP address-P2P implementation principle

I found a lot online,CodeThere are not many details about the principles. I 'd like to explain a few articles. One TechnologyArticle, The most important thing is to clarify the principle, if there is a complete operationSource codeAlso, the key is to clearly analyze the core part of the code. (1) origin: Most computers use dynamic IP addresses to access the Internet. Intranet IP addresses are alloca

Pure IP Database Discuz 50 read the Pure IP database function analysis

Discuz 5.0 is not using their own IP data, but the use of pure IP data format, access to the pure IP database a little bit of trouble, its storage format is very special and interesting, specific format analysis refer to the following two links, other languages to implement the link at the end of the reference article. "Pure

How To Disable IP address modification and prevent lan ip conflict attacks on LAN computers

How To Disable IP address modification and prevent lan ip conflict attacks on LAN computersHow can I prevent LAN computers from modifying IP addresses and preventing LAN IP conflict attacks? The author believes that it can be implemented through the following channels:Method 1: Disable

Change lan ip address to Wan IP Address

The lan ip Address becomes the IP Address of the WAN and implements nat (Port ing) on the router. First, we will introduce some basic concepts: NAT (Network Address Translators) and Network Address Translation: network Address Translation is generated when IP addresses are increasingly lacking. Its main purpose is to reuse IP

Windows Server 2008 R2 settings method that blocks an IP access through IP Security Policy _win server

Now buy a friend of the server will find that a little new point of the hard drive has not supported the WIN2003 system, mainly to drive people do not give you, coupled with Microsoft's 2003 security also does not provide support, it will be difficult to have patches. Recommended that you use the 2008 R2 system, for the 32G/64G server, running 2003 really very wasteful. The following cloud Habitat Community Small series for everyone to share a specific method, and finally a good thing to provid

Command line implementation mac and IP address binding IP mac binding how to bind MAC address _dos/bat

Why do you want to bind IP? Can you specify the IP can not be on the network? The reason to bind IP is because he will change the IP. For example, I am the IP on this computer is 192.168.1.11 this IP has been done in the firewall

TCP/IP Study Notes (3)-IP protocol, ARP protocol, RARP Protocol

Transfer http://blog.csdn.net/goodboy1881/article/details/668556 ------------------------------------------------------ Put the three Protocols together for learning because these three protocols are on the same layer. ARP is used to find the MAC address of the Ethernet NIC of the target host, and the IP address carries the message to be sent. The data link layer can get the data transmission information from ARP, and get the data information to be tr

Static IP address and dynamic IP Address

It is no longer a new technology to bind multiple IP addresses to a network card at the same time, and this operation is also very simple, but do you notice that the bound IP addresses are static IP addresses. The local area network managed by the author is large and has a large number of clients. The DHCP server is used to dynamically allocate

TCP/IP Detailed learning notes (3)-IP Protocol, ARP protocol, RARP protocol

Put these three protocols together because the three protocols are on the same level, the ARP protocol is used to locate the target host's Ethernet NIC MAC address, and the IP hosts the message to be sent. The data link layer can get the data transfer information from ARP, and the data to be transmitted from IP.1.IP protocolThe

TCP/IP explanation (3) IP: Internet protocol, Chapter 3 notes

I. Introduction: IP is the most core protocol in the TCP/IP protocol family. All TCP, UDP, ICMP, and IGMP data are transmitted in IP datagram format. Note that the IP address is not a reliable protocol, the IP protocol does not provide a processing mechanism after the data i

Php query the region (pure ip database) by ip address _ PHP Tutorial

Php queries the region (pure ip database) based on the ip address ). Pure ip library download? PhpclassIpLocation {*** @ varresource pointer * private $ fp; *** offset address of the first IP record * @ varint * private $ firstip; * ** download the last IP record from the pu

About intranet IP addresses and public IP addresses in the network

Public network IP and intranet IPFirst, let's take a look at the IP address Division:Class A address:0.0.0.0------127.255.255.255Where 127.255.255.255 is the broadcast address and cannot be assignedClass B Address:128.0.0.0------191.255.255.255Class C Address:192.0.0.0------223.255.255.255Class D Address:224.0.0.0-----239.255.255.255Class E Address:240.0.0.0------255.255.255If you want to see how much

How to disable access from an ip address or ip address segment in php _ PHP Tutorial

Php disables access from an ip address or ip address segment. This article describes how php disables access from an ip address or ip address segment, operating skills involving SERVER variables $ _ SERVER, files, and strings php methods for disabling access from an ip addre

The difference between independent IP and shared IP _ server other

do the site choose independent IP or shared IP? believe that a lot of webmaster are in this tangle, they do not use the server when never cared about the independent IP and shared IP exactly what the specific difference. But when the real use of their time, only to find: The same I

What is the IP address IP address made up of?

What is an IP address? IP address This word has been heard many times but has been unclear what exactly is, only know that the computer Internet to IP address, in order to understand this problem, small compiled a lot of information, the following to share with you. There are millions of hosts on the Internet, and in order to differentiate these hosts, each host

Key Technology Analysis of IP router technology and IP Phone

IP router technology is still quite common, So I studied the Key Technology Analysis of IP router technology and IP Phone. Here I will share it with you and hope it will be useful to you. IP phones are the economic advantage of combining voice data integration with the technical progress of voice/grouped

Php code for limiting IP addresses and IP segments (whitelist)-PHP source code

The implementation principle is relatively simple. You only need to obtain the user IP address and then verify whether the current IP address exists in our blacklist library. The specific example is as follows. The implementation principle is relatively simple. You only need to obtain the user IP address and then verify whether the current

TCP/IP protocol basics 4 (TCP/IP security)

Different TCP/IP layers provide different security. For example, a virtual private network is provided at the network layer and a secure connection service is provided at the transmission layer. The following describes the security of TCP/IP at different levels and the methods to improve the security of each layer.I. Security at the Internet LayerThe idea of standardizing security protocols on the Internet

Php ip address and IP address segment access restriction code

Php ip address and IP address segment access restriction code. Read the php ip address and IP address segment access restriction code. several functions have been written, and the IP address blacklist is recorded in the library for ease of understanding, changed to a class t

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