Build an ipsec/xl2tpd VPN in centos 6.5
In this article, yum is installed directly, saving you trouble.
I. Installation (a command is fixed)
Yum install openswan ppp xl2tpd
Like the source code installation of friends can go to the http://pkgs.org to download the source package.
Ii. Configuration
1. edit/etc/ipsec. conf
Vim/etc/ipsec. conf
Replace xx. xxx with the actual Internet fixed IP address of your own VPS. Others do not move.
Config setup
Nat_
Run pptpd on CentOS to implement VPN ServiceBuy a cheap VPS and install the linux system. Run pptpd to implement the VPN service and use the famous iptables for nat forwarding. This looks like a professional VPN service. Then configure the user name and password, you can achieve multi-person sharing vpn simple steps ar
Why is the WIN7 system VPN not connected to the Internet? Don't worry, just look at the little book. This Win7 system VPN Setup Guide ~ may be able to help you.
First: After you set up a VPN, you cannot connect to the workspace network at home (or elsewhere) through the Internet, check the items in this list:
-Make sure that the virtual private network (
Workaround:
A problem that is easy to connect to VPN under the corporate Unit network, because the VPN connection is global and can change native IP, resulting in the inability to access the internal network of the company. To solve this problem is not difficult, with the help of the modified routing table to bypass, so that access to the internal network or through the local gateway, the following describ
1 Introduction
With the enlargement of the scale of university running, the new (sub) campus spread to the wireless network construction and management put forward higher requirements. VPN technology can not only build a unified wireless network management platform, but also improve the security of wireless campus network.
2 VPN Overview
VPN (Virtual private n
In today's network age, information security is a problem we have to face. Usually also many do Hai friends ask VPN will not increase security risks, such as credit card theft brush and so on. In fact, this problem needs to be dialectical, the Internet does not have absolute security, VPN is also, if the use of some malicious businessmen to provide VPN, still may
addition, they have set up offices in other places to expand their business volume. How to transmit the operation information of these branches and overseas offices to the enterprise Headquarters in a timely manner, so that the enterprise's decision-making layer and employees can make correct decisions accordingly. In addition, because a large amount of data in the ERP system involves business secrets of enterprises, once these ERP data is intercepted during network transmission, it may bring h
BGP/MPLSVPN Concept 1: VRF
One of the security measures of BGP/MPLSVPN is routing isolation and information isolation. It is implemented through the VPN route Forwarding (VPNRouting Forwarding: VRF) Table and LSP in MPLS. On a PE router, there are multiple BGP/MPLSVPN concepts 1: VRF tables, which correspond to one or more sub-interfaces on the PE router, used to store the route information of the VPN to w
A major purpose of VPS is to use it as an encrypted VPN server. connecting these VPN servers in China will allow unlimited access to the Internet. Common VPN servers are generally divided into two types, one is SSLVPN, which indicates that the software has openvpn, the VPN software has the client software under Windows
1. A 721 error occurred while dialing the VPN Client.
This case is often because of the customer system. If it is WINXP and SP2 is installed, this situation may occur. The solution is to modify the registry: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \ {4D36E972-E325-11CE-BFC1-08002bE10318 }\This type of error is also caused by incorrect server-side PPP protocol configuration.
2. A 800 error occurred while dialing the
Run pppd over ssh (the simplest linux vpn)
SBA 2003.1.10
In order to pass the firewall of udp packets to qq
Tried many methods
It's good to use snake's socks5 proxy. You can use windows as an Internet host.
In linux, stunnel only forwards packets that do not support qq udp.
So I thought that vpn pptpd is a very good vpn Client that supports windows.
It is a pity
Experiment content of Dynamic IPsec VPN in a star network: 1. Create a fully interconnected topology. 2. Take R1 as the center, so that R2 and R3 establish a neighbor relationship with R1 respectively, while the routes between R2 and R3 are not reachable. 3. Create a Dynamic IPsec VPN R1 # show run !! Crypto isakmp policy 100 hash md5 authentication pre-share group 2 lifetime 3600 crypto isakmp key ilovetg
There are many methods for setting up a vpn server on ubuntu with a single NIC, including PPTP, L2TP/IPSec, and OpenVPN. Among the three methods, the latter two have better security, but the configuration is troublesome. OpenVPN is deployed on Windows/Mac...
There are many methods for setting up a vpn server on ubuntu with a single NIC, including PPTP, L2TP/IPSec, and OpenVPN. Among the three methods, the l
agenda: . VPN introduction . VPN working principle . VPN data transmission protocol . VPN Server construction case: Company X has a long distance between departments, and the company's network cannot accommodate a LAN, to ensure secure transmission and easy management of information in each LAN, what are your best met
VPN is a virtual private network. The virtual private network function is to establish a private network on a public network for encrypted communication. It is widely used in enterprise networks. VPN gateway implements remote access through data packet encryption and data packet destination address conversion. VPN can be classified by protocol.
The following sdk components were not installed + win8 how to configure VPN, win8vpn
I don't know what kind of feelings I have for eclipse when developing Android, but for the small Editor, the small Editor is also drunk, and the virtual machine is not started very quickly. xml is laid here when I draw a page, in layout, You can preview and switch back and forth. Originally, the editor was confused about the north and west, but it was even more diffic
Download pptp-1.7.2.tar.gzHttp://pptpclient.sourceforge.net/root user upload to linux host/tmp directoryUnzip installation: cd/tmptar xzf pptp-1.7.2.tar.gzcd pptp-1.7.2make make install change Configuration: 1. Change the dialing user information file cd/etc/pppvi chap-secrets # Secrets for authentication using CHAP # client server secret IP addresses ###### redhat-config-network will overwrite this part !!! (Begin) ################ redhat-config-network will overwrite this part !!! (End) #####
Q: How to troubleshoot a VPN failure to access the Internet
A: Many companies set up their own VPN network, to the company's mobile office users to provide access. But in most cases, many users find that as long as the VPN, the original normal network browsing, QQ and other access to the Internet communications have been broken, and local LAN access (across the
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