800 Error resolution for LINUX installation VPN

After verification, we know

The reason for the error on my side is that the iptables rule does not open 1723 ports

Solution:

The code is as follows

Copy Code

Chkconfig iptables off Service Iptables Stop ============== Iptables-t nat-a postrouting-o Eth0-j Masquerade Iptables-a input-i eth0-p TCP--dport 1723-j ACCEPT Iptables-a input-i eth0-p gre-j ACCEPT Iptables-a forward-i ppp+-o eth0-j ACCEPT Iptables-a forward-i eth0-o ppp+-j ACCEPT Iptables-a output-p TCP--dport 1723-j ACCEPT Iptables-a output-p gre-j ACCEPT ============= Service Iptables Save Service Iptables Start

Try connecting again vpn,800 error disappears.