Colourful Norwich skyline illustration

Michael Sage

IT, Digital & Culture

Auto OpenVPN Script

Build a new VPS and then follow the instructions here! I had an issue with my install to do with routing, the trouble was in the iptables NAT rule. Check if IPv4 forward is enable.
# grep net.ipv4.ip_forward /etc/sysctl.conf
# cat /proc/sys/net/ipv4/ip_forward
# sysctl -a | grep "net.ipv4.ip_forward "
net.ipv4.ip_forward = 1
If it’s ok, check your iptables rules.
iptables -t nat -L -vn --line
iptables -L FORWARD -vn --line
I had no nat rule in my nat table, sad times! I added the following and all is well. $IP is your public server IP:
iptables -t nat -A POSTROUTING -s -j SNAT --to $IP