I. OpenVPN installation Environment Server-Side environmentRedhat, kernel version: 2.4.20-31.9, IP for 70.8.7.6Kernel need to support Tun devices and need to load iptables modules. Check to see if Tun is installed: Code:root@a [/]# Modinfo TunFileName:/LIB/MODULES/2.4.20-31.9/KERNEL/DRIVERS/NET/TUN.ODescriptionAuthorLicense: "GPL" If there is no modinfo command, just look for it and see if there are any tun.o files in kernel: Code:Find-name TUN.O./lib
1.Case Demand Analysis
This case uses the RHEL5 and Windows XP system environment to establish a secure ssl vpn connection 8.2 for two remote LAN and remote network management workstations across insecure Internet networks ).
The gateway servers of Beijing headquarters and Shanghai Branch both use the RHEL5 system. OpenVPN must be configured separately to connect two remote LAN LAN1 and lan2. In addition, the network management workstation located on
Download and install openvpn:Use flashget or any other method to download the openvpn installation package and install it. Remember to select the easy-RSA script,The bat script used to manage the CA.Http://openvpn.se/files/install_packages/openvpn-2.0.5-gui-1.0.3-install.exeAfter installation, easy-RSA is in the c: \ Program Files \ openvpn \ directory.Start conf
OpenVPN client configuration tutorial in Ubuntu generally, Linux servers that provide Web services seldom need to connect to OpenVPN, but personal Linux computers often need to connect to OpenVPN. For example, if you use Linux as the development environment, you need to connect to the company's OpenVPN. In this article
In windows, use openvpn in linux to log on to the Intranet of the remote server, and use linuxopenvpn.
Requirement: in some environments with strict network requirements, we are unable to remotely access the company's Intranet in a remote location, which brings us great inconvenience. However, we can achieve it easily through openvpn, next we will introduce it.
Note: This experiment is performed when the fi
Use openvpn in linux to log on to the Intranet of the remote server
Requirement: in some environments with strict network requirements, we are unable to remotely access the company's Intranet in a remote location, which brings us great inconvenience. However, we can achieve it easily through openvpn, next we will introduce it.
1. Network Environment:
Company openvpn
Install Openvpn in CentOS
Principle:
The core technology of OpenVpn is virtual Nic, followed by SSL protocol implementation. Here we will introduce the virtual nic and its Working Mechanism in OpenVpn:
A virtual Nic is a driver software implemented by using underlying network programming technology. After installation, an Eni appears on the host and can be config
VSAN 6.1 has been released for two or three months, with 2 notable new features, one of which is support for stretched Cluster, which means that your Vsan cluster can now be located in a physical location, deployed across data centers, and a 2-node Vsan.We know that the original Vsan needs at least 3 nodes, why? Since the default FTT is 1, each data disk requires at least 3 components, 1 copies of data, 1 copies of the data, the 3rd is the witness component (Witness component), the equivalent of
OVirt v3.4 began to support hosted Engine. What is hosted engine? Very simply, the previous management node was deployed on a physical machine, and now we deploy the management node to a virtual machine, and the virtual machine runs on the compute nodes in the Ovirt virtualized environment. Previously, the management node was deployed, the compute nodes were deployed, and the compute nodes were registered to the management node, and the virtual machines could be run on the compute nodes through
Use MYSQL to store OpenVPN authentication information OpenVPN
BitsCN.com
Use MYSQL to store OpenVPN verification information to install OPenVPN 1. install MYSQL [root @ localhost ~] # Tar mysql-5.1.57.tar.gz zxvf [root @ localhost ~] # Cd mysql-5.1.57 [root @ localhost mysql-5.1.57] #. /configure-prefix =/usr/local/mys
How to Use OpenVPN and PrivacyIDEA to establish two-factor authentication Remote Access
For the company, IT has become a trend to allow employees to access the company's IT resources at home or on a business trip through the VPN remote access system. However, weak employee password management awareness and attacks by attackers using social engineering libraries often provide convenient channels for attackers. The two-factor authentication system is ve
1 openvpn OverviewVPN replaces expensive leased lines to implement a virtual network on the open Internet. The virtual network itself provides security protection for data on an insecure real network.Openvpn implements a flexible VPN. openvpn has the following advantages compared with the IPsec-based VPN implemented by modifying the Protocol Stack:1. openvpn does
IPSecVPN and OpenVPN-IPSec are talking about OpenVPN and other SSLVPN over the IPSec protocol, as a result, IPSec gradually fades out of sight and becomes a dedicated VPN for core networks and ultra-high-end devices. Www.2cto.com if you want to develop a VPN product, OpenVPN is like the pull personnel standing outside the bainahui Mall in different regions, attra
OpenVPN: OpenVPN can run on most common system platforms. it is a VPN solution based on SSL/TLS. OpenVPN can implement link between Layer 2 and Layer 3 based on the TAP/TUN virtual device driver, provide industry-level encryption function based on SSL/TLS, and implement most common VPN solutions... "/>
OpenVPN can run
OpenVPN Optimization-Establishment of TLS handshake Control CHannel
An 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 doe
In recent years, with the rapid development of China's household electrical appliances industry, competition is becoming increasingly fierce, in which the domestic appliance circulation industry competition is particularly fierce. After China's entry into WTO, the competition pattern and prospect of domestic home appliance market begin to change, the new Chinese household
OpenVPN is another VPN software package different from PPTP and L2TP. it is based on ssl vpn. The use of OpenVPN requires client support. Here the system is CentOS6.2. I. check the environment required by OpenVPN. OpenVPN requires support from TUN devices and nat module support from iptables. 1. check the TUN module: m
OpenVPN server verified by account and password
EnvironmentServer: CentOS 6.7 32-bitClient: Windows XP
Server Configuration# Disable SELinuxSed-I '/^ SELINUX \ B/s/=. */= disabled/'/etc/selinux/configSetenforce 0
# Install mysql-serverYum-y install mysql-server
# Start the mysqld serviceService mysqld start
# Initialize the mysql administrator passwordMysqladmin-uroot password RedHat
# Create a radius DatabaseMysqladmin-uroot-predhat create radius
# I
Centos6.4 quickly build an openvpn server based on user name and password authentication
Today, VPN applications are widely used. I have previously written a blog on PPTPD. The link is http://cyr5425blog.51cto.com/714067/4101788.
The home has recently changed a new broadband. You cannot use the company's PptpdVPN. the dialing status remains at the step of verifying the user name and password. Baidu and Google did not solve this problem. This seems to
OpenVPN is another VPN software package different from PPTP and L2TP. It is based on ssl vpn. The use of OpenVPN requires client support. Here the system is CentOS6.4.I. Check the environment required by OpenVPNOpenVPN requires support from TUN devices and the nat module of iptables.1. Check the TUN module:Modinfo tunShown as follows: If an error is reported, the TUN device is not supported. 2. In OpenVZ VP
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