The VPN is a virtual private network. the private network can be understood as an enterprise Intranet or a LAN. why is the word "virtual" added? It refers to the establishment of a VPN through the public network, that is, through the public network to establish one or more private network links, so as to connect offices or individuals in different regions
The VPN is a virtual private network. the private network can be understood as an enterprise Intranet or a LAN. why is the word "virtual" added? It refers to the establishment of a VPN through the public network, that is, through the public network to establish one or more private network links, so as to connect offices or individuals in different regions to the enterprise network. If you are interested, you can go to the Internet to G. now many enterprises rely on VPN for meals. VPN is simple, secure, and efficient, so more and more people are using it. there are many VPN types, two or three-tier VPNs are commonly used, such as L2TP/PPTP, IPSec, and GRE. in this experiment, a pptp vpn is used.
1. packages to be installed on the VPN server on SUSE 10
Ppp *. rpm pptp *. rpm pptpd *. rpm (you can use rpm-qa to check whether the tool is installed before installation)
2. files to be followed
Etc/ppp etc/pptpd/etc/pptpd. conf (the first two are directories)
3. files to be configured
/Etc/pptpd. conf
Localip 192.168.1.88 # VPN server address, which can be a virtual address
Remoteip 192.168.2.100-200 # IP address assigned to the VPN client
/Etc/ppp/chap-secret
User01 * i314 * # User name user01, host name *, password i314, IP address assigned to the change user, "*" indicates any
4. start the daemon process
Pptpd
5. precautions for VPN client configuration on windows
1. select advanced on the Security tab --> settings, and select "optional encryption (no encryption or connection is allowed)" for data encryption to enable all protocols to be hooked up.
2. select pptp vpn as the VPN type on the network tab.
3. Network tab TCP/IP properties --> advanced --> General, remove the check box before "use default gateway on remote network". Otherwise, the network cannot be accessed.