過程 43.12. pptpd 安裝步驟

1. install

   Ubuntu

   $ sudo apt-get install pptpd
   				

   CentOS

   # yum install pptp pptp-setup
   				

2. $ sudo vim /etc/pptpd.conf

   localip 172.16.0.1
   remoteip 172.16.0.50-100
   				

3. $ sudo vim /etc/ppp/pptpd-options

   ms-dns 208.67.222.222
   ms-dns 208.67.220.220
   				

4. $ sudo vim /etc/ppp/chap-secrets

   # Secrets for authentication using CHAP
   # client        server  secret                  IP addresses
   neo pptpd chen *
   				

5. restart

   sudo /etc/init.d/pptpd restart
   Restarting PPTP:
   Stopping PPTP: pptpd.
   Starting PPTP Daemon: pptpd.
   				

6. # ifconfig ppp0
   ppp0      Link encap:Point-to-Point Protocol
             inet addr:192.168.3.9  P-t-P:192.168.3.15  Mask:255.255.255.255
             UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1396  Metric:1
             RX packets:1545 errors:0 dropped:0 overruns:0 frame:0
             TX packets:1008 errors:0 dropped:0 overruns:0 carrier:0
             collisions:0 txqueuelen:3
             RX bytes:342505 (334.4 KiB)  TX bytes:239324 (233.7 KiB)
   				

7. $ sudo vim /etc/sysctl.conf

   # Uncomment the next line to enable packet forwarding for IPv4
   net.ipv4.ip_forward=1
   				

   refresh status

   $ sudo sysctl -p
   net.ipv4.ip_forward = 1
   				

8. NAT

   				
   $ sudo iptables -t nat -A POSTROUTING -s 172.16.0.0/24 -o eth0 -j MASQUERADE
   $ sudo iptables-save > /etc/iptables-rules
   				
   				

   $ sudo vim /etc/network/interfaces

   					
   pre-up iptables-restore < /etc/iptables-rules
   					
   				

9. firewall

   $ sudo ufw allow 1723
   Rules updated