alternative to openvpn

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Rotten mud: ubuntu 14.04 OpenVPN server, 14.04 openvpn

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

Mud: openvpn configuration file details, openvpn configuration file

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

Openvpn performance-the first bottleneck of openvpn lies in the Tun driver.

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

OpenVPN-ng: The application-layer tunnel for Mobile Life, And openvpn-ng Application Layer

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 original information, it can all be called VPN, s

IPSecVPN and OpenVPN-IPSec

operating system kernel level, the implementations are quite different. This may be the reason why OpenVPN is more advantageous than IPSec. However, in terms of software engineering, the alternative construction design of IPSec is more in line with the high cohesion and low coupling principle of software engineering, is it because of the complexity of the kernel protocol stack of the writable operating sys

OpenVPN server configuration file), openvpn configuration file

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

Graph Tutorial on building a vpn server using openvpn in CentOS

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

CentOS 7 steps to install OpenVPN

Check system environment [Root@ss-usa-odo01 ~]# Cat/etc/redhat-release CentOS Linux release 7.0.1406 (Core) [Root@ss-usa-odo01 ~]# DF-HP FileSystem Size Used Avail use% mounted on /DEV/PLOOP12288P1 30G 484M 28G 2%/ Devtmpfs 256M 0 256M 0%/dev Tmpfs 256M 0 256M 0%/dev/shm Tmpfs 256M 88K 256M 1%/run Tmpfs 256M 0 256M 0%/sys/fs/cgroup [Root@ss-usa-odo01 ~]# Cat/dev/net/tun Cat:/dev/net/tun:file Descriptor in [root@ss-usa-odo01 ~]# grep ipaddr/etc/sysconfig/network-sc

Openvpn Summary based on linux operating system architecture

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

Build openvpn server in Centos6.5

Build openvpn server in Centos6.5 Because the new version of openvpn does not contain the most important certificate preparation part: easy-rsa, You need to download easyrsa in advance and download it on GitHub. The configuration process will be shown in the following step, this deployment uses the easy-rsa3, And the easy-rsa2.0 operation is completely different, other online on the easy-rsa2.0 of the tutor

Deploy openvpn service on RHEL5.4

I. openvpn introduction openvpn is an SSL-based vpn. it uses the industrial standard SSL/TLS protocol to implement the Layer 2 and Layer 3 secure data link VPN. it has the following advantages: 1. based on the SSL protocol, security, and using a single TCP or UDP port can achieve 2. using two-way authentication... I. INTRODUCTION to openvpnOpenvpn is an SSL-based vpn. it uses the industrial standard SSL/TLS

Build an OpenVPN service environment using CentOS

Build an OpenVPN service environment using CentOS I will not say much about the purpose of the OpenVPN environment, because friends who see this information should understand and need to use this tutorial. This tutorial has been prepared by @ qingliu for several hours. After multiple reinstallation drills, you can install and use it. The VPS environment is based on CENTOS6, if you want to install it, take a

Openvpn construction in linux

Openvpn construction in linuxTags: original vpn files, which can be reprinted. During reprinting, you must use hyperlinks to indicate the original source, author information, and this statement. Otherwise, legal liability will be held. Http://304076020.blog.51cto.com/7503470/1605312 Lab EnvironmentSystem: centos 6.5Hostname: openvpn-serverIp: 192.168.1.236 Installation Package address: http://down.51cto.com

Differences between PPTP, L2TP, IPSec, and SSLVPN (such as OpenVPN)

the same time.OpenVPN uses the features of common network protocols (TCP and UDP) to make it an ideal alternative to protocols such as IPsec, especially when the ISP (Internet service provider) filters certain VPN protocols. When selecting a protocol, pay attention to the network conditions between two encrypted tunnels. If there is a high latency or a large number of packet loss, select TCP as the underlying protocol, due to the absence of connectio

Differences between PPTP, L2TP, IPSec, and ssl vpn (such as openvpn)

algorithm. Iana (Internet Assigned NumbersAuthority) The official port assigned to openvpn is 1194. In openvpn 2.0 and later versions, each process can manage several concurrent tunnels at the same time.Openvpn uses the features of common network protocols (TCP and UDP) to make it an ideal alternative to protocols such as IPSec, especially when the ISP (Internet

Establish OpenVPN network based on system user name authentication in OpenBSD

Author: linyin (linyin.8800.org) is from Linyinblog. Implementation environment: # uname-aOpenBSDlinyin.8800.org4.3GENERIC.MP #0i386 #/usr/local/sbin/openvpn -- versionOpenVPN2.0.9i386-unknown-openbsd4 author: linyin (linyin.8800.org) Source:Linyin blog. Implementation environment: # Uname- OpenBSD linyin.8800.org 4.3 GENERIC. MP #0 i386 #/Usr/local/sbin/openvpn -- version

Openvpn construction in linux and linuxopenvpn Construction

Openvpn construction in linux and linuxopenvpn ConstructionTags: original vpn files, which can be reprinted. During reprinting, you must use hyperlinks to indicate the original source, author information, and this statement. Otherwise, legal liability will be held. Http://304076020.blog.51cto.com/7503470/1605312 Lab EnvironmentSystem: centos 6.5Hostname: openvpn-serverIp: 192.168.1.236 Installation Package

Install OpenVPN in CentOS6.6

Install OpenVPN in CentOS6.6 VPN basic concepts VPN Function: establishes a secure private network on an insecure public network for encrypted data transmission. VPN and tunneling Technology Tunnel protocols include Passenger Protocol: encapsulated protocol, such as PPP and SLIP Encapsulation protocols: establish, maintain, and disconnect tunnels, such as L2TP and IPSec Bearer Protocol: the protocol that carries encapsulated data packets, such as IP

IT is in its infancy-deploying OpenVPN server in CentOS6.4

OpenVPN is a software package used to create a VPC encrypted channel. It implements a two-or three-tier tunnel-based VPN. It was first written by James Yonan. OpenVPN allows the created VPN to use a public key, digital certificate, or user name/password for authentication. It uses a large number of SSLv3/TLSv1 protocol libraries in the OpenSSL encryption library. Currently,

Deploy OpenVPN Server on CentOS 6

Deploy OpenVPN Server on CentOS 6 References:Https://www.digitalocean.com/community/tutorials/how-to-setup-and-configure-an-openvpn-server-on-centos-6Http://www.unixmen.com/setup-openvpn-server-client-centos-6-5/Http://docs.ucloud.cn/software/vpn/OpenVPN4CentOS.html Background:Recently, GFW began to block VPN, and the PPTP/L2TP VPN built on VPS began to become un

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