Instance Manager Password Management

If the password file does not exist or contains no password entries, one cannot connect to the Instance Manager.

Instance Manager stores its user information in a password file.
- The default file is /etc/mysqlmanager.passwd
- To specify a different location for the password file, use the --password-file option.

Entries in the password file have two fields separated by a colon.
- The first field is the account username.
- The second field is the encrypted password.
  - Instance Manager password encryption is the same as that used by MySQL Server.
  - This is a one-way operation; no means are provided for decrypting encrypted passwords.

Instance Manager accounts differ from MySQL Server accounts..
- MySQL Server accounts are associated with a hostname, username, and password.
- Instance Manager accounts are associated with a username and password only.

To a new password entry, invoke Instance Manager with the --passwd option and append the output to the /etc/mysqlmanager.passwd file.
- For example:

Any Instance Manager process that is running to monitor server instances does not notice changes to the password file.
- One must stop it and restart it after making password entry changes.

How does the MySQL server do instance status monitoring?

© 2007 John Michael Pierobon

Notes