OpenVPN is the first choice for VPN servers. There are two solutions for how openVPN breaks through the firewall blocking. One is to use the http-proxy that comes with openVPN, second, use HttpTunnel
1. the http-proxy provided by liopenvpn breaks through the firewall blockin
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 funct
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
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 multic
Today, I saw someone in the group talking about openvpn. I just had a holiday at home, so I just studied it. I used the openvpn client when I was a little white two years ago when I was in the old unit and connected to the headquarters OA. I felt that the project should be usable in the future, SOgoogle has a lot of pieces of information on the Internet, and it has been around for a long time. according to
Rotten mud: ubuntu 14.04 OpenVPN server, 14.04 openvpn
This article is written by Xiuyi Lin FengProviding friendship sponsorship, first launched in the dark world
The company branch needs to connect to the company's internal server, but the server only allows access to the company's internal network.
To solve this problem, we plan to use VPN. PPTP is the most widely used solution for VPN in the past, but
-shared key is required to enable the tls-auth function. this password is often stored with files such as certificates. the pre-shared key can be generated using the following command:[Root @ openvpn 2.0] # openvpn -- genkey -- secret ta. key8 configure the openvpn master configuration file on the openvpn Server# Mkdir
OpenVPN-ng: The application-layer tunnel for Mobile Life, And openvpn-ng Application LayerVPN makes people think that it is always a good thing and a way to escape from supervision. In fact, VPN has become the only synonym for escaping from supervision. You see, no matter what technology, IPSec, or WEB Proxy, as long as it is the technology that encrypts the orig
Mud: openvpn configuration file details, openvpn configuration file
This document consistsXiuyi Lin FengProviding friendship sponsorship, first launchedThe world
In the previous article "build OpenVPN server in ubuntu 14.04", we mainly explained how to build and use openvpn. In this article, we will detail the config
Build OpenVPN server with CentOS6
OpenVPN is a free open-source software used to create a Virtual Private Network (VPC) encrypted channel. OpenVPN allows you to easily build a dedicated network channel similar to a LAN between different network access sites, such as home, office, and hotel accommodation.
Using OpenVPN
-TunStatus openvpn-status.logVerb 3-------------- Cut here -----------------Place the configuration file in the c: \ Program Files \ openvpn \ config \ directory.Set ca. CRT server01.crt server01.key ta. Key dh1024.pem under easy-RSA \ keys \.Copy to the directory where server01.ovpn is located.Server configuration has ended. You can start the server. Right-click openvp
The first bottleneck of openvpn is that the Tun character device reads and writes frames at one link layer. The reason why the user-mode openvpn process must have the same link-MTU on both ends, it is because each time openvpn reads a complete Ethernet frame from the/dev/NET/TUN character device, there are not many, and the library interface: ssize_t read (int fd
UDP. If the tunnel uses TCP to establish a connection, if the end user uses TCP to ensure the connection, the tunnel does not need to do so. If the end user uses UDP, the tunnel TCP reduces the efficiency of user connection, offset the result of using UDP.4) -- connect-retry N: indicates the number of connection retries, which is only valid when the-Proto parameter is TCP-client.5) -- connect-Timeout N: the Retry Interval of the connection.6) -- auto-Proxy
# Specify the server address and port. You can use multiple lines to specify multiple servers.# Implementing Server Load balancer (from top to bottom)Remote xx. xx 1194 # enter the Server ip address and port# If multiple servers are configured above, the client can be connected randomly.; Remote-random
# Resolving server domain names# Keep trying indefinitely to resolve# Host name of the OpenVPN server. Very useful# On machines which are not permanen
internet such as laptops.Resolv-retry infinite# The client does not need to bind a port# Most clients do not need to bind# A specific local port number.Nobind# It is also used to make Openvpn run nobody (secure)# Note: Windows cannot be set.; User nobody; Group nobody
# Try to preserve some state when SS restarts.Persist-keyPersist-tun# If the client uses HTTP Proxy, Set# To use
Official manual page.Server 10.8.0.0 255.255.255.0
# Specifies the file that is used to record the association relationship between the client and the virtual IP address.# when the OpenVPN is restarted, the reconnected client is assigned the same virtual IP address as the previous assignmentIfconfig-pool-persist Ipp.txt
# This directive is only for Ethernet bridging mode.# First, you must use the operating system bridge capability to bridge the Eth
OpenVPN server configuration file description (transfer), openvpn configuration file
This article describes how to configure the configuration file on the OpenVPN server. In Windows, this configuration file is generally called server. ovpn. in Linux/BSD, this configuration file is generally called server. conf. Although the configuration file name is different, t
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
Based on the linux operating system architecture openvpn Summary-Linux Enterprise Application-Linux server application information, the following is a detailed description. Use OPENVPN to connect data centers 1
1 status quo 2
2 network structure 2
3. server information and network security 4
3.1 server information 4
3.2 Network Security 4
4 Use openvpn for
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