good vpn software

This site has previously shown us the method of segmenting a router into eight virtual routers using virtual Routing and forwarding (VRF, VM forwarding) through a scene example. I showed you how to configure VRF, and in this article we continue to use this scenario and, through IPSec configuration, replicate the exact topology and address to eight experimental environments. The entire environment can proceed smoothly, first requires the virtual route with ASA and Cisco router to establish

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

The purpose of this is for the company's research and development department to visit foreign websites through Hong Kong's servers, just mark it, maybe later, and not spend any more time studying it. CentOS 5.x/6.x under PPTP VPN server installation 1, installation of related software packages 32-bit version: # yum install-y PPP Libpcap iptables # wget http://poptop.sourceforge.net/yum/stable/packages/

handshake protocol plays an important role in SSL data transmission. Through the handshake protocol, data encryption and authentication can be implemented to ensure end-to-end secure transmission and effectively prevent external attacks on the Web. 2.3 sslvpns SSLVPN uses the PKI certificate system through the SSL protocol, various cryptographic algorithms such as DES, 3DES, AES, RSA, MD5, and SHA1 are used during transmission to ensure data confidentiality, integrity, and non-repudiation, impl

Install Strongswan: an IPsec-based VPN tool on Linux IPsec is a standard that provides network layer security. It contains Authentication Header (AH) and security load encapsulation (ESP) components. AH provides the integrity of the package, and the ESP component provides the confidentiality of the package. IPsec ensures security at the network layer. Confidentiality Data Packet integrity Source Non-Repudiation Replay Attack Protection Strongswa

Generally in small and medium-sized enterprises are like to use NAT to achieve network sharing, usually do not install other NAT software, in the original win 2000 on the basis of WIN 2003 has increased the support of the VPN, without third-party software or hardware can complete the connection ... Hardware: Dual network card, a connecting ADSL modem, a LAN. Fi

a MPSL VPN system for the company in Beijing, Shanghai, Guangzhou, Fuzhou and other places in 11 offices to provide MPLS VPN access services. Hu Xiangdong introduced the program, including local access, remote access and regional center, such as the typical access mode. After the project project through acceptance, Tatsu group will realize the internal network seamless connection, has a fast and secure net

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

Various iOS devices (iPhone, itouch, and iPad) use their own VPN servers to access the Internet and leave the proxy alone. Device used for testing: Windows XP Computer + iPad Available places: for example, in the school living area, connect to the VPN Server set up by yourself in the teaching area to access the Internet (of course, if you have the permission to involve these machines, you should not bothe

The full name of VPN is "Virtual Private Network ). As the name implies, a virtual private network is a virtual private line within an enterprise, it can establish a temporary and secure private communication line between two or more intranets located in different places on the Internet through special encrypted communication protocols. A Virtual Private Network is an extension of the enterprise intranet. It can help remote users, branches, business p

After a night of hard work, I finally succeeded in the installation. although there are many documents on the Internet, although pptp is the simplest one, it is basically copied, in some cases, errors will not be corrected, so I will sort out the labels: CentOS Okay, go straight to the theme. my system is centos 5.6. In the following code #... and subsequent content is Comments. do not copy them. if the file to be modified in the sample code already exists, you can change it to an example. if no

meet the needs of individual users, small offices, and large offices. GAB Robins also needs to optimize access to each site. Some sites are very distant, such as in Alaska. He said that our company has many areas without good network connections.Another killer is the billing of MCI. According to Broccoletti, the bill for MCI is sent to the company's headquarters and must be allocated to specific branches. This job alone requires a full-time job.GAB Robins asked a virtual network operator, vodel

three difficulties. The most important new feature of SSLVPN is EasyConnect. First, EasyConnect provides the Remote Application release function, which helps customers release any software system that can only be installed in the PC environment to smart terminals, this allows business personnel and senior executives to work freely on smart terminals including iPhone and iPad. Next, EasyConnect's outstanding security and ease-of-use features will h

Vpc vpn and Network Address Translation NAT 1. dedicated addresses in the Internet ① 10.0.0.0 to 10.255.255.255 (can be counted as 10.0.0.0/8, also known as 24-bit blocks) ② 172.16.0.0 to 172.31.255.255 (can be counted as 172.16.0.0/12, also known as 20-bit blocks) ③ 192.168.0.0 to 192.168.255.255 (which can be counted as 192.168.0.0/16, also known as 16-bit blocks) these addresses are dedicated addresses that are only applicable to internal communica