openvpn access

1. Environment 1.1. server environment Centos6, kernel version: 2.6.32-71. el6The IP address is 192.168.122.180, and the tunnel IP address is 10.8.0.1. Kernel must support Tun devices and must load iptablesCheck whether Tun is installed: # Modinfo Tun Filename:/lib/modules/2.6.32-71. el6.i686/kernel/Drivers/NET/TUN. KoAlias: Char-Major-10-200License: GPLAuthor: (c) 1999-2004 Max kranyansky maxk@qualcomm.comDescription: Universal tun/TAP Device DriverSrcversion: 7d2aaef89c71c83bbffa0deDe

Use openvpn + linux to quickly establish an enterprise VPN Openvpn introduction http://openvpn.sourceforge.net/, not much said. Openvpn can work in two modes: One is the IP Route mode, which is mainly used for point-to-point One is the Ethernet-based Tunnel Bridge mode, which is applicable to point-to-point and multi-point networks with multiple branches The conf

OpenVPN Increase the script for logging user log Cat connect.sh #!/bin/bash time= ' Date +%f ' if [-f/etc/openvpn/log/openvpn_$time.log];then touch / Etc/openvpn/log/openvpn_$time.log echo "' Date ' +%f%h:%m:%s ' User $common _name trust_ip $trusted _ip is login, REMOTE_IP is $ifconfig _pool_remote_ip, Mask is $route _netmask_1 ">>/etc/

By simply using the openvpn proxy, all traffic on the local machine will go through the Remote VPN Server. However, when we roll over the wall, it is generally the traffic webpage, that is, as long as the http traffic goes through the VPN. Openvpn combined with squid's http forward proxy can provide the wall-over function for Web browsing, while other traffic such as QQ and thunder still follows the normal

Two days ago, hivefans built an openvpn server on a server in the cluster because of the inconvenience caused by the cluster's network segment. If you have encountered some problems, record them. He only built an openvpn and did not install ovpn on other servers in the cluster. He wanted to route the Intranet network segment of the cluster through ovpn, the company can

After completing the OpenVpn Bridge Mode experiment under UbuntuServer10.04, this experiment on the routing mode involves two modes: the bridging mode and the routing mode, let's take a look at the differences between the two modes. The above content is available on the Internet. I just organized them into tables to make it easier to compare and understand. Experiment environment: (1) topology: (2) The two routers are simulated using the Dynamips simu

First, what is OpenVPN Static Key According to the official document, the Static Key approach is a point-to-point (point-to-point) VPN. Second, the advantages of OpenVPN Static Key 1. Easy installation2, easy to use, Windows, OS X, Linux can be used by the official client3, adopt the UDP way, the connection is more stable Third, the OpenVPN Static Key's disad

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

OpenVPN Optimization-Establishment of TLS handshake Control CHannelAn optimization of the OpenVPN data tunnel is in progress. After referring to the concept and idea of the "giant frame", I carefully considered the design and implementation of the TCP/IP protocol stack, so I come up with a possible error, but at least it is very practical in my scenario: although the upper-layer protocol sends data, it does

Openvpn itself can use an HTTP proxy. That is to say, the openvpn client does not directly connect to the openvpn server, but uses an HTTP proxy for connection. This feature is the peripheral feature of openvpn, not its core, but it can solve many practical problems. It is equivalent to another tunnel outside the tunne

Company demand: Need to build a OpenVPN in the Japanese server, and then through the proxy way to visit foreign sites. Server IP: [root@li493-137 ~]# Ifconfig Eth0 Link encap:ethernet hwaddr f2:3c:91:ae:0a:55 inet addr:57.17.20.30 bcast:57.17.20.255 mask:255.255.255.0 Inet6 ADDR:2400:8900::F03C:91FF:FEAE:A55/64 Scope:global Inet6 ADDR:FE80::F03C:91FF:FEAE:A55/64 Scope:link Up broadcast RUNNING multicast mtu:1500 metric:1 RX packets:4620022758

Openvpn Bridge Mode in freebsd is probably the most popular semi-non-standard cross-platform VPN solution, with a large number of users and a pure userland implementation. it's pretty easy to set up, but I often forget certain steps so here's a tutorial for me to rememeber in the future :) Keywords: FreeBSD, OpenVPN, networkingI call OpenVPN semi-non-standard bec

Run multiple openvpn clients-linux Enterprise Application-Linux server application information on a Linux machine at the same time. The following is a detailed description. The server configuration is as follows: Port 1194 Proto tcp Dev tun Ca/etc/openvpn/keys/ca. crt Cert/etc/openvpn/keys/vpnserver. crt Key/etc/openvpn