mosquitto_passwd

manages password files for the Mosquitto MQTT broker

TLDR

Create password file with user

$ mosquitto_passwd -c [passwordfile] [username]

Add user to existing file

$ mosquitto_passwd [passwordfile] [username]

Delete user

$ mosquitto_passwd -D [passwordfile] [username]

Batch mode with password

$ mosquitto_passwd -b [passwordfile] [username] [password]

SYNOPSIS

mosquitto_passwd [options] passwordfile [username]

DESCRIPTION

mosquitto_passwd manages password files for the Mosquitto MQTT broker. Creates and modifies password entries with secure hashing. Used for client authentication in MQTT messaging systems.

PARAMETERS

-c

Create new password file.

-D

Delete user from file.

-b

Batch mode, password on command line.

-U

Upgrade plain text file to hashed.

INSTALL

sudo apt install mosquitto

sudo dnf install mosquitto

sudo pacman -S mosquitto

sudo apk add mosquitto

sudo zypper install mosquitto

brew install mosquitto

nix profile install nixpkgs#mosquitto

CAVEATS

Avoid -b flag in scripts as passwords may appear in process listings. Use interactive mode or pipe from secure sources.