The old version of the VPN system GETSHELL of wangshen (also affects multiple VPN manufacturers' devices, such as Wangyu Shenzhou, tianrongxin, Xi'an wangying, weishitong, Geda zhengyuan, American concave and convex, and ANIX in Germany)
In the/admin/system/backup_action.php file
if (isset($_REQUEST['cmd']))$cmd = $_REQUEST['cmd'];else$cmd = "NULL";$with_cert = 1;$pass = "";include_once "management/system.p
1. The following is an example of an Android phone, we click "Settings" to enter, as shown in the following figure.
2. There is a more or more network connection in the Setup interface, which has the following interface
3. After this enter the interface, we click on "VPN" to open the new interface click "+" increase, as shown in the following figure.
4. Then we enter the domain name of the Outland, such as image encryption
5. Now back to t
paying long-distance telephone charges for ISDN calls between the dial modem or far away. Instead, users and systems are not required to connect to the local ISP, and the rest of the route is delivered to a wide range of internet processing. As for another aspect of cost, you can avoid investing in additional WAN devices, but instead take advantage of existing network facilities already installed.
Another advantage of VPNs is that it is the ideal way to meet the needs of mobile users.
the network protocols used by the VPN server are open and supported. If the router provides a firewall, you need to ensure that it does not affect the VPN service.
Ensure that the network protocols used by the VPN server are open, supported
It is then important to set up the account and password for the VPN
VPN
Virtual Private Network (VPN) refers to the technology for establishing a private network on a public network. It is called virtual network, mainly because the connection between any two nodes of the VPN network does not have the end-to-end physical link required by the traditional private network, but is built on
. If you do not want to use the system's built-in IPSec software, even if it is based on Microsoft's Point-to-Point communication Protocol PPTPPoint-to-Point Tunneling) or L2 Channel Protocol L2TPLayer Two Tunneling Protocol ), it can also perform 2000 session communications at the same time. In combination with VPN networks, Cisco's PIX firewall software can also be used to configure 7140 as a firewall ),
Run the route command to view all the routes.
Route
The result is roughly as follows:
Kernel IP route table destination gateway subnet mask mark hop reference using interface default 192.168.8.1 0.0.0.0 UG 0 0 255.192.168.8.1 255.255.255.255 UGH 0 0 0 wlan0110.185.76.107 192.168.8.1 255.255.255.255 UGH 0 0 wlan0link-local * 255.255.255.0.0 U 1000 0 0 0 wlan0192.168.0.40 * 255.255.255.255 UH 0 0 0 ppp0192.168.8.0 * 255.255.255.0 U 2 0 0 wlan0
Configure all traffic to go through the
decrypted. It is self-evident that this approach can securely transmit private data on an unsecured internet to enable internet-based networking operations. The effect of VPN technology is similar to the traditional DDN line networking, the network topology is shown in the following figure.
Note: The VPN service is built
generated during authentication are used to encrypt data.3. Support for the most common network protocols: clients in the network based on the IP, IPX, and NetBUI protocols can easily use VPN.4. Benefits to IP address security: VPN is encrypted. When VPN data is transmitted over the Internet, users on the Internet can only see public IP addresses, but cannot see
existing network resources and provide economic and flexible connection methods, saving customers the investment required for equipment, personnel and management, and reducing users' Telecom fees, it has been quickly applied in recent years. Some experts believe that VPN will be one of the fastest growing businesses by the end of this century.
What is VPN
Through packets and encrypted transmission of Netw
In order to reduce network costs as much as possible, while not affecting the needs of mobile office, a unit decided to install a VPN server in the local area network file server, so that the unit can trust employees anywhere through the VPN network connection, access to the unit file server important data content, And this access way security can also be guaranteed, is to kill both birds! Recently, the uni
SSL BasicsWhen most of the current remote access solutions use a VPN Network Based on the IPSec security protocol, A new study shows that almost 90% of enterprises use VPN for Intranet and external network connections only for Internet access and email communication, in addition, 10% of users use non-Internet applications such as X11, chat protocols, and other private client applications. These 90% applicat
' long-distance phone fees.
Therefore, VPDN is a form of VPN, but different from common VPN, VPDN is built on the basis of the telephone network. The networking mode is similar to ADSL. Users establish VPDN connections through dialing, is a "On-Demand connection", while a common VPN is a "always online connection"
"Information superhighway", people have been familiar with, "information driven industrialization", also put forward for a long time. Can how to really get through the enterprise internal network of the "trail", catch the express highway of Information superhighway? Remains a problem that has plagued many domestic companies.Story one: the choice of reality"Companies also need to build their own information highway." Hu Xiangdong, general manager of the Broadband Business Development Department o
the Virtual Private Network VPN function, and advanced security features, currently priced at 1850 yuan, is a top-level enterprise wireless hotspot application solution.Linksys VPN wireless router WRV54G is an avant-garde, modern, and can be placed upright, like a radio. It is a wireless access point, fully compatible with 802.11b/G networks, and has four built-
network. VPN can be used in colleges and universities to connect different branch campuses, legal users outside the school, and teachers on business trips, correspondence and adult students can access restricted network resources and library resources that must be on-campus IP addresses.
2.2 Virtual Machine Technology
A virtual machine is an independent logical Computer Virtualized on a physical computer. A virtual machine can be created through virt
. Select PPTP! Enter the domain name f.vbtwo.info on the website)
Well, here we are waiting for the victory! Save configuration! At this time, the upper-level menu will be displayed: VPN → configure the VPN connection just set below! Figure:
Click the connection you just created and enter the user name and password you registered on the website! Figure:
For other client
need to configure the VPN IP address allocation method. Right-click I-PC (local) and select Properties to go to the IPv4 tab. Here you can select a DHCP or static address pool. DHCP needs to have a DHCP server, because it involves the configuration of DHCP servers, and so on, we skip. Select the static address pool and add an address segment. I used a total of 100 10.0.0.100~10.0.0.199 addresses. At this time the host must be 10.0.0.100, is the add
Virtual Private Network (VPN) refers to the technology for establishing a private network on a public network. It is called virtual network, mainly because the connection between any two nodes of the VPN network does not have the end-to-end physical link required by the traditional private network, but is built on the network platform provided by the public netwo
network built on a network platform provided by a public network service provider (such as Intemet, ATM, and frame relay). User data is transmitted over a logical link. Generally, VPN is an extension of the enterprise intranet. It can help remote users, company branches, business partners, and suppliers to establish trusted and secure connections with the company's intranet, it also ensures secure data tra
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