IP Virtual Private network is a very complex technology, involving all aspects, the most critical of which is the tunnel technology. Simply put, the virtual private network is actually the data encapsulation of the enterprise network in the tunnel for transmission. Because the tunneling protocol is relatively complex, the virtual private network technology is complicated. The most typical of tunneling protocols are IPSec, L2TP, GRE, PPTP, L2F, and so on. Where GRE, IPSec belongs to the third-tier tunneling protocol, L2TP, PPTP and L2F belong to the second-tier tunneling protocol. The essential difference between the second and third-tier tunnels is that ...
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" ...
In the past 10 years, the development of Internet industry in China has shown vigorous vitality, which plays an irreplaceable role in the adjustment and infiltration of traditional industrial structure and the improvement of social economy and civil life. With the increase of Internet users, some of the internet industry developed relatively mature provinces, the network economy has formed an industrial-style development, but also become the driving force for economic development. And from the current situation, to decorate the network as a representative ...
You've heard it, but it's worth repeating that the network is a bottleneck in a private cloud. Now that servers and storage technologies have developed into shared resources, cloud administrators are free to invoke these resources, but the network is still manual. To improve flexibility, private cloud networks must be virtualized, and software definition networks (SDN) are a cost-effective approach. "Businesses need to respond quickly, like service providers, to internal customers. To do this, enterprises need to enable self-service it, and the biggest obstacle to this is the network, "is developing based on SDN network virtualization ...
The most tempting point of cloud computing is that end users can access the cloud in any access way and enjoy the rich application and fast computing power of the cloud. Among them, the use of mobile access security issues are becoming the focus of attention. Recently, the author interviewed the Network Kang Science and technology product Director Shaomin, understand its latest application of security gateway products NS-ASG to the enterprise private cloud mobile Access security protection. Shaomin Technology product director Next generation VPN traditional internet era, mobile access ...
The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall January 27 Noon News, the IPV4 address is about to deplete a matter to arouse the attention, the Sina science and technology obtains the information to show, although expects next month international IPV4 address will allocate completes, but domestic operators and so on holds the IPV4 address longest also can support 5-6 years, The development of IPV6 in China is still at an early stage. It is reported that in the case of lack of IP address, operators will be forced to use the common address conversion mode, may cause the national information network infrastructure running inefficient, stable ...
The 1th part of this series discusses the basic aspects of cloud computing, including the cloud layer and different cloud types and their pros and cons, and explains why it is important for enterprise developers to understand the cloud. The 2nd part explores the public cloud and how to deliver Web applications hosted on the public cloud infrastructure using Ibm®websphere®smash and IBM db2®express-c. This article will refer to ...
January 20 News, a few days ago, the foundation cloud service provider Qingyun Qingcloud announced the introduction of Load balancer (LB) of the private network mode and the router's IPSec Cryptographic tunneling service. It is reported that the private network lb not only allows users to save the public network of IP, thereby saving it expenditure, but also through the private network lb to build more complex network architecture, so that enterprises with the physical world the same IT environment. Load ...
If you want to create a private cloud, you need to use management software to create a virtual pool of computing resources, provide access to end users, and deal with security, resource allocation, tracking and billing issues. We tested five mainstream private cloud management products: Novell's Cloud Manager,eucalyptus Enterprise Edition, Opennebula,citrix Lab Manager and cloud.com cloudstack ...
Mention of Dell, has been transformed from an existing PC vendor to an End-to-end solution provider, through acquisitions in recent years, Dell has evolved a separate product line from servers, storage, networking, and now Dell is committed to providing small and midsize enterprises with a balanced and applicable end-to-end solution for the cloud computing platform, To meet customer demand for data applications. Dell's acquisition of innovative technology as the transition phase of Dell, gradually developed from the server, storage, network and services, and other independent solutions, to provide end-to-end user it applications, especially the SME aspect ...
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.