disadvantages of vpn

port density, the maximum rate supported by the port, and the switching capacity of the switch device. This allows you to determine the location and grade of the device. In addition to the basic RFC2544 standard, throughput, latency, and packet loss rate, the performance of a vswitch also increases with the increase of user services and application development, such as the number of MAC addresses, route table capacity (layer-3 Switch), number of ACLs, LSP capacity, and number of

New ways of intrusion into the system can be accessed through VPN VPN has become more and more widely used. Some people use it to bypass the review system, some use it to access websites prohibited by the State, and some use it as the privacy protection layer. There are usually two reasons for using VPN in our work: Access Vulnerability exploitation toolkit or

A Brief Analysis of Dynamic Multi-Point VPN using IPSec tunnel for secure data transmission over the Internet is the main solution for communication between Headquarters and branches of the company. Its commercial value will not be mentioned here, and it will take a long time to find a document. The IPSec network topology can be a star structure (hub-and-spoke) or a mesh structure (full mesh ). In practical applications, data traffic is mainly distrib

Zhan Bo Juniper) SRX is relatively simple to establish a VPN site, and NAT is also simple to use. What I want to talk about is the joint application between them. Requirements: Local A and local B establish A VPN site connection, A remote place C through the leased line to the local, the remote only to the local A route, and cannot add A route. Remote C is required to access

Pptp vpn Server in CentOS6 Architecture For more information, see http://www.178-go.com/archives/vpn-on-centos-vps.html. There are also many articles about installation and configuration on the Internet, which are also detailed. It is not difficult to configure according to steps. Because my application scenarios are a little different from those described in these articles, the server for configuring the

Build a Linux-based VPN Network-Linux Enterprise Application-Linux server application information. The following is a detailed description. Building a VPN is almost one of the most advanced Linux applications. Learning this technology is enough to make you proud of the capital. The main purpose of VPN is to establish an encrypted communication mechanism, and then

The VPN penetration function of the network router is described in detail. The router VPN penetration function does not mean creating a VPN channel, but allows a VPN channel created by other terminals to pass through it, next I will take a network-connected router as an example to introduce it in detail.1. The number o

Build a VPN Server Based on CentOS 1. VPN Server Environment Description Operating System: CentOS 6.5 VPN-Server local Nic information: [root@VPN-Server~] #ifconfig eth0Linkencap:EthernetHWaddr00:0C:29:DA:D0:E0 inetaddr:192.168.30.130Bcast:192.168.30.255Mask:255.255.255.0 inet6addr:fe80::20c:29ff:feda:d0e0 /64 Scope

A problem occurred when we used PacketiXVPN in our company to build a VPN server using CentOS. After a long time, I had not solved the problem, so I found out the problem by looking for their technical staff to completely simulate our network environment... A problem occurred when we used PacketiX VPN to build a VPN server using CentOS. After a long time, I did n

Nowadays, with the popularization and development of the Internet, mpls vpn technology is becoming more and more popular. mpls vpn is a type of MPLS Multiprotocol Label Switching Based Multi-Protocol Label Switching) the technical ip vpn is to use MPLS technology on network routes and exchange devices to simplify the route selection method of the core router, usi

Right-click the Network Neighborhood selection properties on the desktop, and open the Internet connection window Click to create a new connection, pop-up New Connection wizard Click Next Select the network that is connected to my workplace and click Next Select Virtual Private network connection, click Next Fill in the company name (you can, of course, name yourself here), click Next Select Do not dial initial connection, click Next Enter the host name or IP address (addres

Security for the Enterprise is an eternal topic, firewall is able to protect the network security of the first line of defense, through the protection of firewalls, can be viruses, trojans, and even malicious attacks shut out, so that the firewall is to protect the security of users indispensable a barrier. The VPN firewall, on the basis of increasing the user's security, has increased the VPN function, whi

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