Zabbix log trigger not work

[mikeip1205]

Hi,

I am new for Zabbix and I have setup a Zabbix that can send email when trigger found.

But my log monitor trigger seems not work, can anyone help?

Item
Type:Zabbix agent (active)
Key: log[/var/log/auth.log,Failed password,,100]
Type : Log

Trigger
Expression: {server:log[/var/log/auth.log,Failed password,,100].nodata(5m)}=0

The log look like:
Jun 18 11:58:33 SVN sshd[9830]: Failed password for account from xxxx

There are no trigger alert while the world "Failed password" found in the log file.

Thanks,
Mike

[mikeip1205]

The problem is solved.