Comments on: How to Build a Fast VPN Server with WireGuard on Debian 13

By: Ravi Saive

Ravi Saive — Sat, 27 Jun 2026 03:24:09 +0000

@Sebastian,

Hi Sebastian,

Yes, it’s possible to set everything up directly from the WireGuard Android app.

Here’s how:

– Install the WireGuard app from the Google Play Store.
– On your WireGuard server, generate a client configuration (or use the one you already created).
– In the Android app, tap the + button and choose either:
– Scan from QR code (recommended), or import from file or archive if you copied the .conf file to your phone.
– After importing the configuration, toggle the tunnel On to connect.

If you haven’t created a client configuration yet, let me know, and I’ll guide you through that part as well.

By: Sebastian Bögel

Sebastian Bögel — Fri, 26 Jun 2026 16:47:27 +0000

Hello together,

How I grant access with the wireguard android app. Is that possible to do on a android phone? I need little help with the procedure on android. Can you link me a guide for that if possible.

Best regards
Sebastian

By: hamsterchat

hamsterchat — Tue, 02 Jun 2026 23:38:28 +0000

In reply to Ravi Saive. Thank you for your support. The error disappeared when I installed iptables.

By: Ravi Saive

Ravi Saive — Mon, 01 Jun 2026 04:51:43 +0000

In reply to hamsterchat. @Ardiya, Yes, the guide should work on Debian 12 as well, since WireGuard support is included in the Debian 12 kernel and the setup steps are largely identical. The error you're seeing usually indicates a problem in the /etc/wireguard/wg0.conf configuration file rather than a compatibility issue. I'd recommend checking the output of:

sudo systemctl status wg-quick@wg0
sudo journalctl -xeu wg-quick@wg0.service

Some common causes include: syntax errors in wg0.conf, missing or incorrect private/public keys, invalid IP address or CIDR notation, incorrect file permissions or a port conflict with another service. If you can share the relevant output from the commands above (excluding any private keys), I'd be happy to help troubleshoot further.

By: hamsterchat

hamsterchat — Sat, 30 May 2026 17:50:36 +0000

Thanks for the tutorial. Is this guide valid for Debian 12 as well? I'm getting an error when I try to start the WireGuard server using:

sudo systemctl start wg-quick@wg0

It returns:

Job for wg-quick@wg0.service failed because the control process exited with error code.
See "systemctl status wg-quick@wg0.service" and "journalctl -xeu wg-quick@wg0.service" for details.

Has anyone encountered this issue on Debian 12, or is there an additional step required?