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
Virtual Private Network (VPN)
Virtual private networks are connected to a geographically different local network by means of the public network Internet, which is like local access. Because VPNs encrypt data as they transmit data, the security is high even though the data is transmitted over a public network. In the past few years with the VPN function of the hardware equipment is very happy to sell, some
Sometimes, because of the work or the software that wants to use the Cisco VPN client, there are often a variety of reporting errors in the WIN8 system, one of which is that the Cisco VPN Client reports a 442 error, and every time this report error is annoying, So how to deal with this report error! Now let's take a look!
The following is a specific error message:
Error Code 442 While connect to the
Recently, global growth-oriented commercial network experts and wireless network pioneer NETGEAR announced the launch of ProSafe Wireless ADSL modem VPN Firewall Router (DGFV338. DGFV338, a small and medium-sized enterprise customer, is a compact, fully functional, six-in-One Security dedicated device. It has the features that NETGEAR's DG product line has failed to provide.
Recently, global growth-oriented commercial network experts and wireless netw
Linux uses pptpconfig to connect to the vpn Server-Linux Enterprise Application-Linux server application information. The following is a detailed description. If it is in Windows XP, you can directly connect to the vpn Server by using the XP dial-up software. The configuration is very simple, but there is no default vpn Client software in linux, this makes it dif
Configure vpn in ubuntu to support Internet access
The company's development environment is LAN, and there is no problem in the company's internal use, but sometimes it does need to be used outside, such as at home, on a business trip, at this time you need to configure a vpn connection to the company's intranet. The vpn configuration is very simple, but sometime
This article attempts to describe what a VPN tunnel is in simple language and explains how VPN provides strong anonymous and privacy protection.
The operation performed by the VPN tunnel is called Data encapsulation. To understand what encapsulation is, let's make a simple analogy. If you are a political refugee living in another country, the secret of your place
Build a VPN on CentOS
Linux: CentOS
1. Check the server for necessary support. If the check results do not support these features, pptp cannot be installed. Command:Modprobe ppp-compress-18 echo OKAfter this execution, "OK" indicates that the execution is successful. However, another check is required. Enter the following command:Cat/dev/net/tunIf the following information is displayed, ticket can be activated for vps vendors if not supported. Most v
Topology:
Note: The company's Intranet environment requires domain support;
The front-end two VPN servers are Linux operating systems;
A green line indicates the physical link of the network environment;
Red indicates the authentication method;
# When a user requests a VPN connection, use the domain account to log on. DNSPOD determines whether it is a China Telecom or a China Unicom (China Netcom) Resource
First, the question of the proposedAs shown in Figure 1, In the unit has a private address for the 192.168.0.0 network, the computer is through ADSL sharing access to the Internet, a computer in the home also through ADSL access to the Internet, now want to safely at home at any time to visit the unit 192.168.0.2 this machine, many ways to achieve, the most secure is through Vpn.Second, what is a VPNIn this case, it is now the unit 192.168.0.2 the VPN
System environment: Windowsserver2008r2enterprise (fully installed)1, Configuration preparation work1.1, click on the "Start" to the right "Server Manager"1.2, click "Role" in "Server Manager"1.3, in the "role" click on the right to select the translation "Add Role", click "Next"1.4, in the "role" select "Network Policy and Access Services", click "Next"1.5, click "Next"1.6. Select the Routing and Remote Access service1.7, click "Install"2. Configure the VPN
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.
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
After Windows XP VPN is automatically created and configured to connect, we also need to make an introduction to VPN Autoconfiguration under Windows 7, since many organizations are actually already starting to use a large volume of Windows 7. And many users are moving toward Windows 7, so how do you make windows 7 users a good user experience? How to simplify the VPN
Absrtact: Broadband IP metropolitan Area network, routing planning and design is the core link. In the beginning of the network, must be integrated planning. According to the construction of the metropolitan area Network, the routing strategy based on Bgp/mpls VPN is adopted, which is proved to be feasible by practice.
Key words: BGP MPLS VPN IP Routing strategy
1 Broadband metropolitan Area Network overv
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