How to turn on TUN/TAP on droplet server

Heya,

I assume this is now sorted, I’ll like to mention the following. Run the following command to see if the TUN device is available:

cat /dev/net/tun

If it returns File descriptor in bad state, it means the TUN/TAP driver is available.

Additionally, once OpenVPN is running, verify the TUN interface is up:

ip a show tun0

You should see an interface named tun0 with an IP address assigned.

Regards

Heya,

In case you still need to enable tun/tap,

1. Check if TUN/TAP is Enabled

First, check if the TUN/TAP module is already enabled:

cat /dev/net/tun

If you see the output “File descriptor in bad state”, it means TUN/TAP is enabled. If you see “No such file or directory”, it means TUN/TAP is not enabled.

2. Load the TUN Module

If TUN/TAP is not enabled, you need to load the TUN module:

sudo modprobe tun

You can verify that the module is loaded:

lsmod | grep tun

You should see an output like:

tun 28672 0

3. Ensure TUN/TAP Loads on Boot

To ensure that the TUN module loads on boot, you need to add it to /etc/modules:

echo "tun" | sudo tee -a /etc/modules

Hi there,

Noticed that you mentioned that this is already running? Did you sort it out and if so would you mind sharing this with the community here?

What I personally do when setting up an OpenVPN instance is to use the 1-Click installation from the DigitalOcean Marketplace:

https://marketplace.digitalocean.com/apps/openvpn-access-server

- Bobby