best vpn concentrator

This article is based on the actual application of my company written, but a little modification can be applied to many places, the system runs two months, the proof is still safe and stable, ah ... My company in Beijing, but the main equipment in Nanjing Telecom, a major IDC, there are our two pix525ur (did a failover), the above made a strict access control, so in order to facilitate the company's mobile, travel and Home Office staff, Have the idea of doing

Application Introduction The PPTP VPN PC to site mode provides the terminal with a secure tunnel to the Headquarters network. If you are on a business trip, you can connect to the Internet, use the terminal's own VPN client dial-up connection, and establish a secure tunnel for data transmission. This article describes how to build a PPTP VPN se

SSL BasicsWhen most of the current remote access solutions use a VPN Network Based on the IPSec security protocol, A new study shows that almost 90% of enterprises use VPN for Intranet and external network connections only for Internet access and email communication, in addition, 10% of users use non-Internet applications such as X11, chat protocols, and other private client applications. These 90% applicat

Various iOS devices (iPhone, itouch, and iPad) use their own VPN servers to access the Internet and leave the proxy alone. Device used for testing: Windows XP Computer + iPad Available places: for example, in the school living area, connect to the VPN Server set up by yourself in the teaching area to access the Internet (of course, if you have the permission to involve these machines, you should not bothe

The full name of VPN is "Virtual Private Network ). As the name implies, a virtual private network is a virtual private line within an enterprise, it can establish a temporary and secure private communication line between two or more intranets located in different places on the Internet through special encrypted communication protocols. A Virtual Private Network is an extension of the enterprise intranet. It can help remote users, branches, business p

VPN is one of the most important technologies in the access network. As the access network technology continues to develop, VPN is also evolving to meet more user needs, it brings people a convenient and fast network environment. The emergence of VPN is no longer overnight. From IPSec to SSL, VPN has undergone a lot of

This article describes how to configure packet filter support for PPTP VPN clients. The Windows Server 2003 Routing and Remote Access service supports virtual private networks (VPNs). VPN clients can use Point-to-Point Tunneling Protocol (PPTP), second-tier Tunneling Protocol (L2TP), and IP Security (IPSEC) to create a secure tunnel to the Windows Server 2003-based Routing and Remote Access Service

You may have heard about VPN. Next, I will introduce you to the knowledge of D-Link router VPN. How can we use D-Link router VPN reasonably to bring us convenience? The following is a detailed introduction. VPN Virtual Private Network), as its name implies, is an encrypted Private Network channel used to establish a te

1 Introduction Virtual Private Network (VPN) technology is used on the Internet to establish its own Private Network by means of encryption and authentication, to meet the security and confidentiality needs of enterprises to transmit data over the Internet. VPN, as a mature security technology application on the Internet, has been rapidly popularized in enterprises, scientific research, education, and other

1. VPN related source code in froyo.1.1 Java layer:A. UI source code:Packages/apps/settings/src/COM/Android/settings/VPNB. VPN Server Source Code:Frameworks/base/VPN/Java/Android/NET/VPNFramework/base/packages/vpnservices/src/COM/Android/Server/VPN 1.2 native layer:External/mtpd: used to control PPTP and L2TP modules.E

VPN (VirtualPrivateNetwork) refers to the technology for establishing a private network on a public network. VPN is a remote access technology that uses public links to build private networks. It mainly uses tunnel technology, encryption and decryption technology, key management technology, and user and device identity authentication technology. Method 1: 1) set vpn