good vpn software

Friends know how to configure VPN under win ' 2003, but many of these are based on the server in the public network IP premise, and at present many units are connected through a router outside the network, the rest of the servers are under the router, using the intranet IP, then how do we configure VPN? 51CCNP will be here to tell you a good way. a single network adapter configures the

Requirements for VPNBecause the VPN is for the Enterprise User Service, relates to the enterprise normal operation, therefore the following from the user angle analysis to the VPN several requirements.VPN availability: That is, the established network can meet the requirements of the user's business. After the enterprise user's own business nature, the flow analysis, constructs one to adopt what technology

This article provides a comprehensive explanation of LAN networking. During VPN networking for small and medium-sized enterprises, we will encounter many setup problems. Here we will introduce you to a configuration scheme for LAN formation, A diagram is provided to describe the Entire networking process in detail. After setting up the Internet network on the Router, you can establish a VPN dial-up connecti

For remote Wan users, the virtual private network (VPN) should be a secure connection, but many enterprises question the security of VPN due to many obvious vulnerabilities. Rainer Enders is the CTO of NCP engineering responsible for VPN security in the Americas. In this article, we will learn how a VPN security vulner

Article title: Connect to France using VPN under Ubuntu. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In Ubuntu, we can easily use the VPN service provided by www.linkideo.com to connect to France using UbuntuVPN. The following describes the methods: 1. register a

There are many types of access networks in China, so I have studied the two access networks that are commonly used. I would like to share them with you here and hope they will be useful to you. Security Attacks against enterprises are growing. The "Interop New York" meeting in New York this week provided a place to showcase products that address network administrator defense concerns. Mazu Network, a network behavior analysis company, was one of the vendors that released new products and upgrade

At present, there are usually a certain number of enterprises, basically in other regions there are some branches, factories, offices and other institutions, how to efficiently, securely, and cheaply connect the networks of these branches to the Headquarters network has become an obstacle for enterprise informatization. This article introduces a Simple and Easy VPN connection technology to help enterprises solve this problem. I. Case studies A large e

In linux, use poptop to quickly build the VPN service-Linux Enterprise Application-Linux server application information. The following is a detailed description. VPN (Virtual Private Network) is an extension of a Private Network. It can simulate a point-to-point Private connection through a shared Internet or public Network connection, send data between a local computer and a remote computer. 1. download a

The editor is loading... Windows 2000/XP/2003/Vista. It is a dial-up client with pptp_vpn. No additional software is required. Take Windows XP as an example. The procedure is as follows: Start the New Connection Wizard Choose Start> set> network connection> New Connection wizard. Or right-click the "Network Neighbor" icon on the desktop, select "properties", and double-click "New Connection Wizard" in the "Wizard" column ". Click "Next" to conti

properties, connection time, and traffic The server automatically generates a 169.254.0.0/16 CIDR block address. The client is assigned a CIDR block address for normal communication. 7,View the server attributes. On the server, we can see that a real customer is connected. When Using XP as a VPN Server, only one user can access the server at the same time. If other users access the server, the following error occurs. 8, This experiment proves th

Nearly at home in the middle of the night, early in the morning was engaged in response to business, the company has a VPN, do not want to work AH hard system administrator AH Originally no problem, in the notebook installed a Cisco VPN client, the connection can be, but at home on the evil door, with wireless how are not connected, Tip 412 error, can only take the company 3G card; Say this 3G card, altho

VPN (Virtual private network) is an extension of a private network that sends data between a local computer and a remote computer by sharing an Internet or public network connection to simulate point-to-point private connections. It has good confidentiality and immunity from interference, allowing both sides to be free and secure point-to-point connection. There are two common VPN services under Linux, on

In March 1999, the Internet Task Force (IETF) published a RFC2547 by Cisco, describing a way for operators to provide virtual private network (VPN) services to users through an IP backbone network. This method uses an extended BGP (Boundary routing protocol) to distribute VPN routing information through the carrier backbone network, and uses Multiprotocol token switching (MPLS) to forward

, how to achieve such high-performance forwarding, the key is that it is still a layer-2 device.4. VPN transparency This is a shame. When I implemented my VPN last year, I told the customer that our product was a two-layer device, so the customer was relieved because it would save a lot of maintenance time, because the L2 device does not need to configure network parameters, I think so, but he is wrong and

ADSL is called asymmetric Digital subscriber line. ADSL is called asymmetric because its two duplex channels are used to transmit data to the user, only a small portion of the bandwidth used to send back to the user's information. ADSL on a pair of copper wire support upload rate 640kbps~1mbps, 1mbps~8mbps rate, effective transmission distance within the 3km~5km range. The application of ADSL ADSL LAN users with 4 fixed static IP address, the application of ADSL LAN form network units can be s

PS: There are two common methods to implement VPN in linux: poptop and openvpn. Here we mainly introduce poptop. If there is time, we will write it and prepare it before openvpn is installed. 1. the VPN Server has two NICs with different IP addresses. Tip: You can use netconfig to configure the NIC. If you want to configure the second Nic, enter netconfigeth12. enabling the linux route forwarding function i

VPSLinuxCentos6.3 build a VPN (pptpd) server 1. find the software package: run wget in Centos http://poptop.sourceforge.net/yum/stable/packages/pptpd-1.3.4-2.el6.x86_64.rpm (It looks like sourceforge.net. I am using this campus network to build a VPS Linux Centos6.3 VPN (pptpd) server. 1. find the software package: run

I. Software Dkms, kernel_ppp_mppe, pptpd Ii. Download Software Wget http://sourceforge.net/projects/poptop/files/mppe%20module%20builder/dkms-2.0.10-1/dkms-2.0.10-1.noarch.rpm/download Wget http://sourceforge.net/projects/poptop/files/mppe%20module%20builder/kernel_ppp_mppe-1.0.2%20dkms-2.0.6/kernel_ppp_mppe-1.0.2-3dkms.noarch.rpm/download Wget ftp://rpmfind.net/linux/epel/6/x86_64/pptpd-1.4.0-3.el6.x86_64.

About PPTP Point-to-Point Tunneling Protocol (English: point to Point Tunneling Protocol, abbreviated to PPTP) is one way to implement a virtual private network (VPN). PPTP uses Transmission Control Protocol (TCP) to create controlling channels to send control commands and to encapsulate Point-to-Point Protocol (PPP) packets to send data using the generic Routing Encapsulation (GRE) channel. This agreement was first developed by manufacturers such as

tunnel by a dial-up access server that supports VPN. At this point, the client computer is not a tunnel endpoint, but rather a remote access server that is located between the client computer and the tunnel server as the tunnel clients and becomes an endpoint of the tunnel. At present, voluntary tunnels are the most commonly used types of tunnels. The above two types of tunnels are described in detail below. Voluntary tunnels A voluntary tunnel is e