Dynamic Port Forwarding

The current internet World (IPV4 environment), IP Address resource gap is very large, many network users do not have a fixed IP address, only under certain conditions to share some of the IP address, that is, "Dynamic IP" way to network access (such as ADSL). In this case, the registered domain name will certainly not have a fixed IP address, but by the "Dynamic Domain Name" service provider real-time domain name resolution, the network at all levels of DNS servers at any time to update domain name IP information. In fact, with the proliferation of Internet users, the real-time nature of domain name Dynamic parsing is becoming more and more difficult to guarantee, especially as "free" ...

help you know what neutron is, what it is, and why, before you go into the details of the research neutron, so you can always clearly position yourself in the study of these complex network technologies without losing your way. This article is suitable for architects who want to quickly understand the full range of neutron features, for programmers who want to study neutron code, for testers who want to run neutron, and for those who want to know about the basics of the network. This article does not explain each kind of network technology detail, also does not explain neutron ...

With the rise of new businesses such as cloud computing, mobile Internet and Web2.0, traditional data centers have been unable to meet. The industry is setting off a new wave of data center construction, with the next generation of cloud computing data centers. Network is one of the important components of cloud data center, the network Architecture of cloud data center must have five new technology features: 100G Ethernet technology, surge cache, network virtualization, unified Exchange, green energy-saving technology. 100G Ethernet Technology Bandwidth pressure is the core problem of cloud data center network. In the data center, like video-on-demand, 10G FCoE ...

The achievements of modern science and technology make the human organs in space has been greatly extended, if the telephone is the extension of human voice, television is the extension of human vision, the data center is the extension of the human brain, then the network is a variety of extensions, as well as between the extension and the subject exchange information between the transmission of the instructions of the nervous system. The normal nervous system is one of the basic signs of a healthy human being, similarly, the large bandwidth, the low time delay, the high reliable network system is also makes the human various organs to extend effectively, enters the cloud age the basic guarantee. Cloud business's challenge to the network as information services enter ...

The achievements of modern science and technology make the human organs in space has been greatly extended, if the telephone is the extension of human voice, television is the extension of human vision, the data center is the extension of the human brain, then the network is a variety of extensions, as well as between the extension and the subject exchange information between the transmission of the instructions of the nervous system. The normal nervous system is one of the basic signs of a healthy human being, similarly, the large bandwidth, the low time delay, the high reliable network system is also makes the human various organs to extend effectively, enters the cloud age the basic guarantee. Cloud business's challenge to the network as information services enter the cloud ...

Why use a VLAN? The implementation of VLAN is a logical division of users, so that users in different VLANs can not communicate directly. This technology facilitates implementation and saves money. However, with the application of VLAN more and more wide, and VLAN-related security management problems are more and more serious. The application of VLAN technology provides a strategy method based on management mode for network security, we can choose different VLAN partition methods according to the characteristics of enterprise network management. Although the network security to a certain extent has been guaranteed, but ...

The router is an important bridge for the LAN to connect the external network, is an indispensable part in the network system, and also the Frontier Gateway of the network security. But the maintenance of the router is rarely appreciated. Just imagine, if the router even its own security is not guaranteed, the entire network there is no security to say. Therefore, in the network security management, the router must be properly planned and configured to take the necessary security measures to avoid the security problems of the router to the entire network system to bring loopholes and risks. We are here to introduce some of the router to enhance the security of the measures and methods, let me ...

"Editor's note" Network after years of development, has come to the "post-Cisco" era, software definition network, network virtualization and other nouns have come to everyone, this article focuses on the traditional network architecture and SDN network of similarities and differences, the development of network virtualization, you can see, SDN manufacturers are gearing up, because of " We usually overestimate the changes in the next two years, and underestimate the changes that will happen in the next decade ", the traditional enterprises need to actively face the future changes in the network operation, the author from the Network Transformation and technology transformation in two aspects of the network industry in-depth discussion of the ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall Anhui Internet Alliance hosts the Thousand Person stationmaster lecture (http://www.53w.net) already to the 36th period, this issue guest Mao Wei Taihu Lake Pearl Network technical director, the very war net founder, the Chief network management, two Quan Net co-founder, one, the Taihu Lake Pearl Net ( thmz.com) is a comprehensive regional portal for providing full Internet (Internet) services in Wuxi and surrounding areas. Wuxi is the external publicity window, but also the outside world to understand the most ...

In some ways, securing your computer is a full-time job. The problem is even more complicated when you think about wireless security. For those traveling outside the wireless network, whether they use a wireless access point in a café, an airport, or a hotel where they spend the night, one important concern is that they never know the security of the network they use unless they know it is not. For example, for a network of coffee shops, this is true: because they are open to everyone, you can't finish ...