Pptp Network

To adapt to the needs of information and mobile office, many enterprises have deployed VPN servers. The VPN (virtual private receptacle), which is built on the Windows Server 2003-based Routing and Remote Access service, is a secure and convenient remote access solution, and is now the preferred choice for most small and midsize enterprises. 　　Then how to secure the VPN is a problem for the enterprise CIO to face. VPN solution is to virtual ...

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 ...

Recently, the FBI has proven to people the fact that it is easy to analyze attacks on wired equivalent encryption to gain access to wireless networks that use this security protocol. According to the announcement, Jonathan Yarden is considering a test of the role of security in the wireless network, and based on the results of this test, he will make some suggestions on how to protect the safety of wireless networks. Years ago, in a computer exhibition with a very prosperous network concept unit, I was paralyzed in one now ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall VPS is virtual private server abbreviation, literal translation is the fictitious dedicated servers. 　　As the name suggests, it is not a real physical server, but it is also different from the shared Hosting (virtual host), users have full control of the VPS, that is, root Access. The characteristics of the VPS 1, relatively independent user isolation: Users no longer because of a variety of resources and fighting, between each other in a relative separation ...

Some distributions run a http://www.aliyun.com/zixun/aggregation/12499.html "> Domain resolution Caching service in the background." Of course, there are also distributions that do not have this service. If you have this program in the background of Ubuntu, you can use the Restart NSCD service to empty the cache. Why empty the cache? Most DNS clients cache the results of domain name resolution locally, which increases access to the same address ...

Resource sharing and telecommuting are one of the most important contributions of network to modern society. In colleges and universities with scientific research education as their duty, the important significance of various academic documents, teaching materials and frontier technology sharing is particularly prominent. The network environment of colleges and universities is a more special environment, because of the large capacity of intranet, it often compose the campus network with more complicated structure.　　The shared resources are often concentrated in the library of the University electronic database, as well as the use of Off-campus electronic database, the formation of the campus resource sharing pattern. Campus Network barrier as the vanguard of domestic Water Conservancy research, university information Construction ...

We usually have more contact with "hard" routes in our daily lives. 　　The so-called hard routing is a special application of hardware devices, including processors, power supply, embedded software, to provide the configured router function. 　　"Soft" routing is relative to "hard" routing, refers to the use of professional servers, with the free Linux/unix platform or professional Windows platform set up. "Soft" Routing has many advantages: first, should ...

With the continuous expansion of enterprises and companies, staff travel more frequently, the distribution of overseas institutions and customer groups increasingly dispersed, the increasing number of partners, more and more modern enterprises urgently need to use public Internet resources for promotional, sales, after-sales service, training, cooperation and other advisory activities, This has laid a broad market for the application of VPN. VPN (Virtual http://www.aliyun.com/zixun/aggregation/33969.html ">priva ...")

A virtual private network (VPN) is defined as a temporary, secure connection through a public network (usually the Internet), a secure, stable tunnel through a chaotic public network. This tunnel can be used to encrypt data several times to achieve the purpose of safe use of the Internet. The virtual private network is an extension of the intranet of the enterprise. A virtual private network can help remote users, corporate affiliates, business partners, and suppliers establish a trusted and secure connection with the company's intranet and secure data transmission. Virtual private network can be used for the growing mobile users of the global Internet access to the real ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall Linux is a set of free to use and freely propagated Unix-like operating system. Web servers are ubiquitous. In today's world of dedicated intranets and public data announcements, virtually every workstation connected to the Internet can be a worldwideweb server. 　　Now, based on Linux operating system software numerous, today, IDC Review network recommended 5 from Abroad mainstream Web server. 1.AOLs ...