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https://github.com/ciffelia/tsblock
Prevent tailscale from using specific network interfaces
https://github.com/ciffelia/tsblock
ebpf go golang tailscale
Last synced: 2 months ago
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Prevent tailscale from using specific network interfaces
- Host: GitHub
- URL: https://github.com/ciffelia/tsblock
- Owner: ciffelia
- License: gpl-3.0
- Created: 2023-10-01T15:13:34.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-08-24T10:17:23.000Z (4 months ago)
- Last Synced: 2024-09-29T21:21:44.706Z (3 months ago)
- Topics: ebpf, go, golang, tailscale
- Language: Go
- Homepage:
- Size: 43 KB
- Stars: 10
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# tsblock
[![Licensed under GPL-3.0](https://img.shields.io/badge/license-GPL--3.0-blue)](LICENSE)
[![CI](https://github.com/ciffelia/tsblock/actions/workflows/ci.yaml/badge.svg)](https://github.com/ciffelia/tsblock/actions/workflows/ci.yaml)tsblock prevents Tailscale from using specific network interfaces.
tsblock is developed to work around [tailscale/tailscale#7594](https://github.com/tailscale/tailscale/issues/7594). Currently, interfaces whose name matches `^cilium_|^lxc` are blocked. The pattern is hard-coded in [main.go](main.go).
## Requirements
- Tailscale must be running as a systemd service.
- tsblock must run as root. It is recommended to run tsblock as a systemd service.## How it works
tsblock utilizes eBPF to drop packets sent from `tailscaled.service` systemd unit.
## Install
```
go build
sudo ./systemd/install.sh
sudo systemctl daemon-reload
sudo systemctl enable --now tsblock.service
```## Uninstall
```
sudo systemctl disable --now tsblock.service
sudo ./systemd/uninstall.sh
```