PPTP has No Internet Access after CSF enabled
I am installing PPTP on my CentOS 6.5 OpenVZ, it works fine if I disabled CSF and flush all iptables settings and run:
iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -j SNAT --to-source 126.96.36.199
(188.8.131.52 is my server primary IP)
However if I enable CSF, VPN connection can still be connected, but no Internet Access.
I tried to figure out this issue by adding the code mentioned above into csfpre.sh, but still no success.
How I can solve this problem?