Command-line tool

fastd

brew/fastd

Checked 25 Oct 2026, 21:09 UTC · Listing refreshed from Homebrew, winget, npm, Scoop and cargo; npm packages checked against OSV.dev

Fast and Secure Tunnelling Daemon

Website Source

At a glance

Type

Command-line tool

Install on

macOS, Linux

Last checked

25 Oct 2026, 21:09 UTC

Install it

macOS

brew install fastd

Linux

brew install fastd

Start `fastd` with a specific configuration file

fastd -c path/to/fastd.conf

Start a Layer 3 VPN with an MTU of 1400, loading the rest of the configuration parameters from a file

fastd -m tap -M 1400 -c path/to/fastd.conf

Validate a configuration file

fastd --verify-config -c path/to/fastd.conf

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