# Block OpenVPN transfer networks
iptables -N OVPNBLOCK
- for i in INPUT FORWARD; do
- iptables -A ${i} -j OVPNBLOCK
- done
+ iptables -A INPUT -i tun+ -j OVPNBLOCK
+ iptables -A OUTPUT -o tun+ -j OVPNBLOCK
+ iptables -A FORWARD -i tun+ -j OVPNBLOCK
+ iptables -A FORWARD -o tun+ -j OVPNBLOCK
# OpenVPN transfer network translation
iptables -t nat -N OVPNNAT