ZCS Administrator's Guide 7.2.3
ZCS Administrator's Guide 7.2.3
Open Source Edition

Appendix A Command-Line Utilities > zmmypasswd

This command is used to change zimbra_mysql_password. If the --root option is specified, the mysql_root_passwd is changed. In both cases, MySQL is updated with the new passwords. Refer to the MySQL documentation to see how you can start the MySQL server temporarily to skip grant tables, to override the root password. This requires a restart for the change to take effect.
zmmypasswd [--root] <new_password>.
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