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- #!/bin/bash
- # BonvScripts
- # https://github.com/Bonveio/BonvScripts
- PUBLIC_INTERFACE="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
- PUBLIC_IP_ADDRESS="$(curl -4sL http://ipinfo.io/ip || wget -4qO- http://ipinfo.io/ip)"
- if [[ ! -e /etc/openvpn/server.conf ]]; then
- echo -e "Missing OpenVPN Server config, exiting..."
- exit 1
- fi
- PRIVATE_IP="$(cat /etc/openvpn/server.conf | grep -i server | sed -e '/cert.*/d' -e '/key.*/d' | awk '{printf $2}')"
- CIDR_CLASS=""
- if grep -qs 255.255.0.0 /etc/openvpn/server.conf; then
- CIDR_CLASS="16"
- elif grep -qs 255.255.255.0 /etc/openvpn/server.conf; then
- CIDR_CLASS="24"
- fi
- if [[ "$(cat /proc/sys/net/ipv4/ip_forward)" != "1" ]]; then
- echo 1 > /proc/sys/net/ipv4/ip_forward
- fi
- iptables -I FORWARD -s $PRIVATE_IP/$CIDR_CLASS -j ACCEPT
- iptables -t nat -A POSTROUTING -o $PUBLIC_INTERFACE -j MASQUERADE
- iptables -t nat -A POSTROUTING -s $PRIVATE_IP/$CIDR_CLASS -o $PUBLIC_INTERFACE -j MASQUERADE
- #iptables -t nat -A POSTROUTING -s $PRIVATE_IP/$CIDR_CLASS -o $PUBLIC_INTERFACE -j SNAT --to-source $PUBLIC_IP_ADDRESS
- # After you run this script, Connect through your client config and test if its now working
- #
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