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open communication network. It introduces the connection mode in a connectionless network, this reduces network complexity and is compatible with various mainstream network technologies, greatly reducing network costs while improving IP service performance, it ensures the service quality of network communication and the security of data transmission. The combination of multicast technology and mpls vpn technology will provide operators with an unprec

With the development of China's routing technology, VPN routing technology is also widely used, which is a very important part of the routing technology. Here we mainly analyze the VPN routing technical solution, hope to help you. Today, Virtual Private Network (VPN) is widely used in the Internet, which allows enterprise networks to expand almost infinitely to e

Build a vpn Server using centos I recently set up a vpn Server and checked a lot of information. Here I will summarize it for later use.1. Install software 1. Run cat/etc/issue to view the system version.2. Click here to download the rpm packages of dkms, kernel-ppp, ppp (excluding devel), and pptpd systems.3. Run the rpm command to install the following rpm pack

Virtual Private Network (VPNVirtual Private Network) is defined as a temporary and secure connection established through a public Network (usually the internet). It is a secure and stable tunnel through a chaotic public Network. VPN relies on ISPInternet service providers) and other NSP network service providers) to establish dedicated data communication networks in public networks. In a virtual private network, the connection between any two nodes is

Article title: use Openbsd and Openvpn to quickly establish an enterprise VPN. 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. Use openbsd + openvpn to quickly establish an enterprise vpn Openvpn can work in two modes: One is the IP route mode, which is mainly used for p

Install Strongswan: an IPsec-based VPN tool on Linux IPsec is a standard that provides network layer security. It contains Authentication Header (AH) and security load encapsulation (ESP) components. AH provides the integrity of the package, and the ESP component provides the confidentiality of the package. IPsec ensures security at the network layer. Confidentiality Data Packet integrity Source Non-Repudiation Replay Attack Protection Strongswa

1. Download the Virtaulbox and install it.2. Download the openwrt img on the OPENWRT website.3. Convert img to VirtualBox format: vboxmanage convertfromraw--format VDI openwrt.img openwrt.vdi (in VirtualBox version 5.0.12 the " --format VDI "is at the end of command)4. Set the eth0 to brige the network connection to the host and set up DHCP, which is connected to the extranet.5. Set Eth1 to Interanet, set s

Sometimes, because of the work or the software that wants to use the Cisco VPN client, there are often a variety of reporting errors in the WIN8 system, one of which is that the Cisco VPN Client reports a 442 error, and every time this report error is annoying, So how to deal with this report error! Now let's take a look! The following is a specific error message: Error Code 442 While connect to the

It takes many attempts to eliminate the router VPN fault in a moment. The following is a reply from a netizen. I hope you can give it a try. It is a common method to help fans. Take the opportunity to provide it to you. ◆ Router VPN troubleshooting: VPN is a secure connection between two networks over the Internet, for example, connecting a home network and an o

a MPSL VPN system for the company in Beijing, Shanghai, Guangzhou, Fuzhou and other places in 11 offices to provide MPLS VPN access services. Hu Xiangdong introduced the program, including local access, remote access and regional center, such as the typical access mode. After the project project through acceptance, Tatsu group will realize the internal network seamless connection, has a fast and secure net

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

Build a VPN under CentOS 1. Make sure that PPP and TUN are enabled for the machine Cat/dev/pppcat/dev/net/tun If the output is in the afternoon, it indicates that the request passes. Otherwise, contact the supplier. Ii. one-click installation script Wget http://www.laozuo.org/download/scripts/openvz_centos_vpn.sh chmod a + x openvz_centos_vpn.shsh openvz_centos_vpn.shThe execution result is: 1. In

Use the company's VPN in Ubuntu Environment 1. Download openconnect Sudo apt-Get install openconnect 2. Use openconnect to connect to the VPN Sudo openconnect-u username 3. You will be prompted to use the trusted connection during the process. Enter yes and press Enter. After the connection is successful, register the following prompt, which will be

open source VPN solution. We do this experiment is to simulate the common online companies outside the company need to visit the intranet OA, to achieve remote office automation. Solution: System environment: centos6.3 x64 openvpn:openvpn-2.3.0 (attachment has download) VPN server:eth0:192.168.100.90,eth1:172.24.30.1 V