Prev

Next

The similarities and differences between industrial... 1. definition of industrial 4G router and industrial switch   Industrial 4G router:   Industrial 4G router is a network device responsible for path finding. It provides users with communication by finding the least communication from multiple paths in the interconnection network. Industrial 4G router...

更多文章

4g router features of E-lins Technology With the development of new communication technologies and the continuous improvement of network efficiency and function of wireless communication, 4G has been widely used. 4G industrial-grade wireless routers are playing an increasingly important role in the applications of various industries, and the price is getting...

更多文章

E-Lins Industrial router applications Industrial-grade routers as Internet network layer communication equipment application in all walks of life, brought a lot of convenience for our industry. "E-Lins" introduce the application of industrial router scenario analysis.   1 The self-service terminal network   E-lins industrial router networking...

更多文章

Classification of 4G industrial routers There are many types of 4G industrial routers, which can be divided into different categories from different perspectives. Different types of 4G industrial routers can be used in different environments. The following sections classify the 4G industrial routers from different perspectives. According to the performance From...

更多文章

Dual SIM Router vs. Dual Radio Router Projects are looking to save their enterprises time and money ask us this very often: “When would I need to use dual SIMs, and in what situations should I consider dual radio dual sim router?” In order to make this clear, let’s take a quick look at the dual SIM and dual SIM dual radio module functionality. Dual...

更多文章

twitter

What is VPN

文章目录 : 其他, 技术相关

A virtual private network (VPN) extends a private network across a public network or internet. It enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

VPNs can provide functionality, security and/or network management benefits to the user. But they can also lead to new issues, and some VPN services, especially “free” ones, can actually violate their users’ privacy by logging their usage and making it available without their consent, or make money by selling the user’s bandwidth to other users.

Some VPNs allow employees to securely access a corporate intranet while located outside the office. Some can securely connect geographically separated offices of an organization, creating one cohesive network. Individual Internet users can use some VPNs to secure their wireless transactions, to circumvent geo-restrictions and censorship, and/or to connect to proxy servers for the purpose of protecting personal identity and location. But some Internet sites block access via known VPNs to prevent the circumvention of their geo-restrictions.

A VPN is created by establishing a virtual point-to-point connection through the use of dedicated connections, virtual tunneling protocols, or traffic encryption. A VPN available from the public Internet can provide some of the benefits of a wide area network (WAN). From a user perspective, the resources available within the private network can be accessed remotely.

Traditional

VPNs are characterized by a point-to-point topology, and they do not tend to support or connect broadcast domains, so services such as Microsoft NetBIOS may not be fully supported or work as they would on a local area network (LAN). Designers have developed VPN variants, such as Virtual Private LAN Service (VPLS), and layer-2 tunneling protocols, to overcome this

limitation.

发表评论

You must be logged in to post a comment.