Files
fips/docs/reference/cli-fips.md
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Johnathan Corgan ce19d5bd23 Use C:\ProgramData\fips for Windows config, keys and peer ACLs
On Windows the config directory, the key directory and the peer ACL
defaults disagreed. SYSTEM_CONFIG_DIR and the ACL defaults resolved to
/etc/fips on the current drive, the search path never probed the
directory the service installer writes to, and fipsctl keygen wrote to
the per-user %APPDATA%\fips. A service started before a reboot found
none of the installed files and ran on defaults, and a peers.deny placed
beside the hosts file in C:\ProgramData\fips was never read, so the ACL
failed open.

Windows now uses C:\ProgramData\fips for all of them, the directory the
hosts file and the service installer already use, and the search path
probes it before the per-user config. A key left in %APPDATA%\fips is
still picked up when the new directory has none, by the daemon and by
fipsctl address, with a note to move it. The daemon warns when it ran on
a config found only in %APPDATA%\fips, which the service never reads.
fipsctl keygen points at a key left in %APPDATA%\fips, and
--install-service names the file the service reads.

A peers.allow or peers.deny left at the old /etc/fips location would
otherwise be dropped on upgrade, and a dropped deny list fails open. For
one release the daemon keeps reading each file from /etc/fips, resolved
against the current drive exactly as before, when it is not at the new
location, and warns naming both paths and asking for it to be moved.
When both exist the new file is read and the warning says the old one
is ignored. The choice is made per file and re-checked on every ACL
reload, so moving, adding or removing a file takes effect without a
restart, including a copy that keeps the old file's modification time.
The fallback is meant to be removed in a later release.

Linux, macOS and FreeBSD paths are unchanged.

The Windows ZIP's README told users to put fips.yaml beside fips.exe or
in %APPDATA%\fips, neither of which the service reads, and the reference
docs gave %APPDATA%\fips as fipsctl keygen's default. The README now
says the service reads C:\ProgramData\fips\fips.yaml and keeps the key,
hosts and peer ACL files beside it, and describes the per-user files a
foreground run also reads. The reference docs list C:\ProgramData\fips
as the Windows system config directory and keygen default.
2026-09-24 23:12:45 +00:00

4.3 KiB

fips

The FIPS mesh network daemon.

Synopsis

fips [-c FILE]

On Windows the same binary additionally accepts --install-service, --uninstall-service, and (used internally by the service control manager) --service.

Description

fips is the FIPS daemon. It loads a YAML configuration, resolves an identity, brings up the TUN adapter, listens on configured transports, authenticates peers, maintains the spanning tree, and forwards mesh traffic. There is one daemon per node.

The daemon stays in the foreground, logging to stderr, until it receives SIGINT or SIGTERM. On Windows, the service variant is controlled through the standard service control manager.

Options

Flag Argument Description
-c, --config FILE Use FILE as the configuration. Skips the default search paths.
-V — Print the short version, <version> (rev <git-hash>). The rev part is omitted when the build could not read a git revision, as in a package built from a git worktree.
--version — Print the long version: short version plus build target triple.
-h, --help — Print usage and exit.
--install-service — (Windows only) Install fips as a Windows service. Requires Administrator.
--uninstall-service — (Windows only) Uninstall the Windows service. Requires Administrator.
--service — (Windows only, internal) Run as a Windows service. Invoked by the service control manager — not for direct use.

There are no other CLI flags; all daemon behaviour is governed by the YAML configuration. See configuration.md.

Exit Codes

Code Meaning
0 Clean shutdown after SIGINT / SIGTERM.
1 Failed to load configuration, resolve identity, construct the node, or start the node. The reason is printed to stderr before exit.

Environment

Variable Description
RUST_LOG Tracing filter directive. Overrides node.log_level from the config. Examples: info, debug, fips=trace,fips::node::handlers::mmp=debug.
XDG_RUNTIME_DIR Used to derive the default control-socket path when /run/fips does not exist. See control-socket.md.
FIPS_CONFIG (Windows service mode only) Path to the configuration file when the daemon runs under the service control manager.

The daemon also clamps the nostr_relay_pool, nostr_sdk, and nostr log targets to info whenever the effective log level is below trace, so that RUST_LOG=debug does not flood the journal with raw relay frames. To see those frames, set the level to trace.

Files

fips looks for fips.yaml in the following locations, lowest to highest priority. All present files are merged in priority order; the highest-priority value wins.

Priority Path Purpose
1 /usr/local/etc/fips/fips.yaml (macOS, FreeBSD), C:\ProgramData\fips\fips.yaml (Windows), /etc/fips/fips.yaml (other Unix) System-wide defaults
2 ~/.config/fips/fips.yaml (%APPDATA%\fips\fips.yaml on Windows) User preferences
3 ~/.fips.yaml Legacy user config
4 ./fips.yaml Deployment-specific overrides

On macOS and FreeBSD both system directories are probed: /etc/fips first, then /usr/local/etc/fips, so the packaged file wins over a leftover /etc/fips copy from an earlier install. Windows likewise probes \etc\fips on the current drive, then C:\ProgramData\fips.

Adjacent to the highest-priority config file the daemon reads (or writes, on first start) the identity files:

File Mode Purpose
fips.key 0600 Bech32 nsec for the persistent identity (Unix only; Windows inherits parent ACLs).
fips.pub 0644 Bech32 npub corresponding to fips.key.

When node.identity.persistent is false (the default), a fresh keypair is written to these files on every start.

The control socket path is derived per control-socket.md.

See also