Reset password of “Admin” to default “zabbix”:
Use psql to edit the database:
su - postgres -c "psql zabbix"
Update Admin with new password:
update users set passwd='$2y$10$92nDno4n0Zm7Ej7Jfsz8WukBfgSS/U0QkIuu8WkJPihXBb2A1UrEK' where alias='Admin';
Exit:
\q
Login Zabbix Dash
Login: Admin
Password: zabbix