macOS + SFM + system_interface true: operation not permitted
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Description
How do I use the “system_interface”: true parameter correctly? I added it to my working configuration, and SFM stopped connecting.
“endpoints”: [
{
“type”: “tailscale”,
“tag”: “tailscale”,
“hostname”: “sing-box-mb”,
“accept_routes”: true,
“system_interface”: true,
“exit_node”: “100.125.54.15”
}
]
The error:
Failed to fetch last disconnect error
(packet-tunnel) error: start service: start outbound/tailscale[tailscale]: Connect: operation not permitted
I tried running SFM using sudo (% sudo /Applications/SFM.app/Contents/MacOS/SFM), but that didn't solve the problem.
SFM: 1.13.19 (1)
macOS: 26.6.2
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The entry point is the SFM configuration containing the Tailscale endpoint and system_interface parameter; start by reproducing the operation-not-permitted error on macOS. Compare the failing configuration with one that connects successfully, and consider the issue resolved when the documented setup allows SFM to connect.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- macos
- Domain
- desktop, networking, operating-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100