Block internet access in openVPN when connect to vpn

md.119

8/20/24, 8:09 AM

I install and config openVPN in my Ubuntu server using this tutorial and everything is work, but i want to block internet access when user active vpn

i use this configuration base on some search in internet but it not work and user still access to internet

in server.conf or base.conf add this lines

script-security 2
up /etc/openvpn/block_internet.sh
down /etc/openvpn/unblock_internet.sh

also create block_internet.sh and make it excutable:

#!/bin/bash
iptables -A FORWARD -s $ifconfig_pool_remote_ip -j DROP

and for unblock_internet.sh:

#!/bin/bash
iptables -D FORWARD -s $ifconfig_pool_remote_ip -j DROP

I run VPN server(vmware) and client in a local network may be this is the problem?

0 + 2

openvpn

Sebastian

8/20/24, 6:13 PM

What is the value of `$ifconfig_pool_remote_ip`?

md.119

8/21/24, 4:57 AM

It's a placeholder that is automatically replaced with the actual IP address of the connecting client

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Block internet access in openVPN when connect to vpn

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