# Fallback Relays > `n34 config relays` command **Usage:** ``` Sets the default fallback relays if none provided. Use this relays for read and write Usage: n34 config relays [OPTIONS] [RELAYS]... Arguments: [RELAYS]... List of relay URLs to append to fallback relays. If empty, removes all fallback relays Options: --override Replace existing fallback relays instead of appending new ones ``` This command configures the default fallback relays, which `n34` uses to read from and write to. To add relays, provide their URLs as arguments to append them to the current list. Use the `--override` flag to replace the existing list entirely. To clear all fallback relays, run the command without any arguments.