linux ipsec vpn

The initial vpn experience in linux-Linux Enterprise Application-Linux server application information. The following is a detailed description. I am idle, and I have a vpn service in the company's Intranet, so that I can easily log on to the company's intranet elsewhere. Nex

LinuxLowerVPNClient (p t p) Configuration Linux: Kernel kernel-2.6.9-42.EL You can go to the site: http: // pptpclient.sourceforge.net/ Required software: Kernel-devel-2.6.9-42.EL (built-in system) Dkms-2.0.10-2.fc5.noarch.rpm Dernel_ppp_mppe-0.0.5-2dkms.noarch.rpm The above three files are usually installed when you set up the Linux VPN Server. You can run the

In debianLinux, the implementation of vpn Server-Linux Enterprise Application-Linux server application information is as follows. Server Side settings: First, add the mppe patch to the kernel of the vpn Server, Obtain patches from debian: Apt-get install kernel-patch-mppe Then execute the patch in the source code direc

Experimental environment: (1) The company all game servers, only allow an extranet IP to access, need to maintain the server, must first dial to the designated extranet IP. (2) The company and headquarters communications are to take the VPN channel, the company's internal IP and VPN devices are different network segments, need to be under the VPN device to conn

The English full name of the VPN is "virtual private network", translation comes from "The fictitious specialized network". As the name suggests, virtual private network we can understand it as a virtual out of the enterprise internal line. It can establish a proprietary communication line between two or more corporate intranets that are connected to the Internet in different places via a special encrypted communication protocol, like a dedicated line

Article Title: Build an L2TP VPN Server on the Linux system. 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 Linux as an L2TP

VPN client on linux debian, vpndebian Install the pptp-linux and pptp-linux-client: 1 sudo apt-get install pptp-linux-client Create a connection config: 1 sudo pptpsetup -- create [ConnectionName] -- server [Ip] -- username [Username] -- password [Password] -- encrypt

By step: Operating Environment Centeros 6 * First run the following command: cat /dev/net/tun The return must be:Cat:/dev/net/tun:file Descriptor inRun:cat /dev/pppThe return must be:Cat:/dev/ppp:no such device or address If the above return is not the result of these two, please contact the VPS Customer service to open PPP and Tun permissions. ################################################@1--Install PPP Yum install gcc yum Install PPP @ Remember to load GCC @2-----Install

VPS Linux Centos6.3 build a VPN (pptpd) Server 1. find the software package: Run wget http://poptop.sourceforge.net/yum/stable/packages/pptpd-1.3.4-2.el6.x86_64.rpm in Centos System (it seems sourceforge.net this I can not open this campus network, or OpenShift to download) 2. check System Support and install the ppp and iptables package. The latter is usually installed by default. Use the local yum source

. VPN can be understood in this way, Linux clients use a virtual network device PPP0 (Windows clients can also be understood as a VPN virtual network card), connected to the server's virtual networking device Ppp0, so that the client joined the server-side ppp0 on the network. Localip is the IP address that can be assigned to the server-side ppp0, and REMOTEIP wi

1) Install DKMS package RPM--install dkms-1.12-2.noarch.rpm This is supported by dynamic kernel modules. You need to use it at the kernel level to simplify installation and configuration. This will make almost everything transparent to the user during the installation process. 2) Install the PPP kernel module RPM--install kernel_ppp_mppe-0.0.4-2dkms.noarch.rpm The Point-to-Point Protocol installs your "modem" or any device that makes up your connection. This is part of your core. 3 Determi

In Linux, any software accesses the Internet through proxy (non-vpn). in windows, SocksCap32, ProxyCap, FreeCap, and Proxifier can access the Internet through proxy. This blog has previously introduced: http://www.2cto.com/net/201207/142900.html ,... In Linux, any software accesses the Internet through proxy (non-vpn).

1. Introduction to VPN in Linux Generally,LinuxLowerVPNThe implemented protocol stack can be divided into application layer and Network LayerVPN, Application LayerVPNFor exampleSSL VPNWell-known open-source implementations include:OpenvpnAnd the network layer is usuallyIPSec VPN.SSL VPNThe text will not be described.OpenvpnThere are many materials, so you can study them on your own. ActuallyLinux2.6At le

Most of the logs for logging on to the linux pptp vpn user name pptpd are stored in files such as/var/log/messages,/var/log/daemon. However, after careful reading, the user name is not found in the logs, I don't know which account the user used to log on. So I looked at pppd man and found some environment variables, such as IPLOCAL and IPREMOTE. After testing, I found that PEERNAME is the user name, in this

My Vyatta operation has been very good, with Ros and Cisco do tunnel connected to Vyatta run OSPF used to turn the wall, the effect has been good. When you use Windows to connect to a VPN, however, you often open the page timeout, but the ping is normal everywhere, so you suspect an MTU or MSS problem. After several twists and turns, when the Web page timed out, a large number of exceptions occurred in the Vyatta log: 21:02:39 Xirang kernel: [483817

VPN Client Connection Linux server access slows down how to solve There are three ways to solve the problem: Method One: Edit pptpd source code, increase MTU; Method Two: Use a script to increase the MTU after the PPTP interface is connected to the up; Method III: Do not use MPPE encryption; The first, although fundamentally solves the problem, but because the level problem gives up; the third becaus