Reference Original address: http://www.cnblogs.com/JuneWang/p/3917697.htmlIP Address:IPv4IP address = network number + host numberSubnet Mask:A subnet mask is a basis for determining whether the IP addresses of any two computers belong to the same subnet . The simplest understanding is that the respective IP addresses of the two computers and the subnet mask after the and operation, the result is the same,
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
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
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
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
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
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
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
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
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
https://blog.csdn.net/yulyu/article/details/69062288
Objective:
Proficient in TCP/IP, familiar with Socket for network programming.See this sentence, there is no feeling very familiar ah. I believe many people have seen this request in the delivery of their resumes, many people will feel that we do not generally use this knowledge in the actual development, so we shrug off these things.
But I think want to make a better APP, then the basic knowledge m
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 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
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
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
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 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
I. TCP/IP background and introductionIn the 70 's, with the development of computer technology, computers users realized that it was necessary to connect computers from all over the world to play a more important role in computer. But the simple connection is not enough, because the computer can not communicate. Therefore, the design of a common "language" to communicate is necessary to be less, then the TCP/IP
IfconfigRouteIpIP routeOne, ifconfig command (view or configure IP)1. View Network Connections# ifconfig \ Show all active connections, not packet-disabled devicesOr# IFCONFIG-A \ Show all active and inactive connectionsDisplays the connection for the specified interface# ifconfig Eth12. Configure IP Address# ifconfig eth1 192.168.0.1 netmask 255.255.255.Or# ifconfig eth1 192.168.0.1/243. Enable or disable
IP datagram Header highest bit on the left, recorded as 0 bit, the lowest bit on the right, recorded as a bitVersion:4 bits, refers to the IP protocol version of the current IP protocol version number is 4 (that is, IPV4)Header Length:4 bits, the maximum value that can be represented is 15 units (4 bytes in one unit) so the maximum of the first ministerial degree
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.