Linux操作系统上vpn服务端和客户端的配置

1.) Other
Which configuration would you like to use?:1 ;只有这一个,选1
Tunnel Name: test ;给连接起名字test
Server IP: 10.0.0.227 ;vpn服务器的ip
What route(s) would you like to add when the tunnel comes up?

This is usually a route to your internal network behind the PPTP server.
You can use TUNNEL_DEV and DEF_GW as in /etc/pptp.d/ config file
TUNNEL_DEV is replaced by the device of the tunnel interface.
DEF_GW is replaced by the existing default gateway.
The syntax to use is the same as the route(icon_cool.gif command.
Enter a blank line to stop.
route: TUNNEL_DEV ;用提示的输入
route: ;一个就够了,回车结束
Local Name and Remote Name should match a configured CHAP secret.
Local Name is probably your NT domain\\username.
NOTE: Any backslashes (\\) must be doubled (\\\\).
Local Name: pptp
Remote Name [PPTP]:
Adding test - 10.0.0.227 - pptp - PPTP
Added tunnel test
1.) List CHAP secrets
2.) Add a New CHAP secret
3.) Delete a CHAP secret
4.) List PPTP Tunnels
5.) Add a NEW PPTP Tunnel
6.) Delete a PPTP Tunnel
7.) Configure resolv.conf
8.) Select a default tunnel
9.) Quit
?:9
退出后再进入程序
# ./pptp-command
1.) start
2.) stop
3.) setup
4.) quit
What task would you like to do?: 1 ;选1,开始
1.) test
Start a tunnel to which server?: test ;在选择要连接的名称
注意：pptp-command这个脚本有个bug,开始连接后不能正常结束程序，并且在连接建立后给出个错误的路由。
# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.0.227 * 255.255.255.255 UH 0 0 0 ppp0
10.0.0.0 * 255.255.255.0 U 0 0 0 eth0
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default 10.0.0.1 0.0.0.0 UG 0 0 0 eth0
注意1.不能创建隧道，根据提示去掉pptp-command里面的－T的参数，等建立隧道完成后再恢复。
注意2.vpn连接后首先删除那个ppp0那个路由，然后使用route add -net 218.30.85.0/24 dev ppp0添加到具体网络的路由。
注意3.pptp-linux-1.0.3-1.tar.gz 要update到1.2，然后安装，vpnserver修改地址后，直接在vpn客户端上修改隧道配置文件/etc/ppp/peers/* 中得地址即可。配置文件路径可以在启动文件中查找到。