openvpn monitor

Use OPENVPN to implement Intranet mutual access between two locations (1) master server configurationMaster Server Configuration Functions to be implemented: Shenzhen:Master VPN Server: dns.dog.comInternet ip-eth1: 192.168.68.71Intranet ip-eth0: 10.1.1.254Guangzhou:VPN Server: lvs1.dog.comInternet ip-eth1: 192.168.68.73Intranet ip-eth0: 10.1.2.1Clients outside China:192.168.68.79Shenzhen-Guangzhou tunnel uses virtual IP addresses 10.8.0.1 and 10.8.0.

VPN protocols: PPTP, L2TP, and OpenVPN1. Concepts of PPTP, L2TP, and OpenVPN Tunneling Protocols 1. Default port number of PPTP (Point to Point Tunneling Protocol): 1723 PPTP, or PPTF Protocol. This protocol is a new enhanced security protocol developed on the basis of the PPP protocol. It supports multi-protocol Virtual Private Network (VPN) and can pass the password authentication protocol (PAP) and Extended Authentication Protocol (EAP) to enhance

First, the working principle of OpenVPN VPN technology establishes a private tunnel on the public network through key exchange, encapsulation, authentication and encryption, which guarantees the integrity, privacy and effectiveness of the transmitted data. OpenVPN is a new open source project emerging in recent years, which realizes a sslvpn solution. Traditional SSL VPN through the port proxy method, the

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

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

Install Openvpn in Ubuntu 14.04Install Openvpn in Ubuntu 14.04--------------------------- Download and install openvpn ----------------------------------- Install openvpn and other necessary plug-ins # Apt-get install openvpn libssl-dev openssl Install easy-rsa

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 DoS Vulnerabilities (CVE-2014-8104) Release date: 2014-12-01Updated on: 2014-6 6 Affected Systems:OpenVPN OpenVPN Access Server Description:Bugtraq id: 71402CVE (CAN) ID: CVE-2014-8104 OpenVPN is an open-source ssl vpn toolkit. In versions earlier than OpenVPN 2.3.6 and earlier than

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

After openvpn has the setenv and reverse push-peer-info that can be pushed, it can theoretically implement bidirectional push of any information, which is too convenient. However, convenience requires a price, that is, it is prone to confusion, errors, and the lack of security. In this world, there are two groups that are hostile to each other. One is how to make nodes more interconnected, and the other is how to control access to communications. In o

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