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Man Pages
MOSQUITTO_PASSWD(1) Commands MOSQUITTO_PASSWD(1)

mosquitto_passwd - manage password files for mosquitto

mosquitto_passwd [-c | -D] passwordfile username
mosquitto_passwd -b passwordfile username password
mosquitto_passwd -U passwordfile

mosquitto_passwd is a tool for managing password files for the mosquitto MQTT broker.
Usernames must not contain ":". Passwords are stored in a similar format to crypt(3).

-b
Run in batch mode. This allows the password to be provided at the command line which can be convenient but should be used with care because the password will be visible on the command line and in command history.
-c
Create a new password file. If the file already exists, it will be overwritten.
-D
Delete the specified user from the password file.
-U
This option can be used to upgrade/convert a password file with plain text passwords into one using hashed passwords. It will modify the specified file. It does not detect whether passwords are already hashed, so using it on a password file that already contains hashed passwords will generate new hashes based on the old hashes and render the password file unusable.
passwordfile
The password file to modify.
username
The username to add/update/delete.
password
The password to use when in batch mode.

Add a user to a new password file:
•mosquitto_passwd -c /etc/mosquitto/passwd ral
Delete a user from a password file
•mosquitto_passwd -D /etc/mosquitto/passwd ral

mosquitto bug information can be found at https://github.com/eclipse/mosquitto/issues

mosquitto(8), mosquitto.conf(5), mqtt(7)

Roger Light <roger@atchoo.org>
11/08/2018 Mosquitto Project

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