Reseting Zabbix Admin password
If you ever lose / forget or inherit someones Zabbix install, you can easily reset the password for the admin user with a simple mysql query.
Procedure
1. Log into your mysql database:
mysql -u root -p
2. Reset the password:
use zabbix; update zabbix.users set passwd=md5('newpass') where alias='Admin';
3. Log into the web GUI with your new password.