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MySql Slave status



We are running a mysql sensor on a linux db server to track our slave status.

We are setting up the sensor on a upgraded db server and are receiving an error : "Authentication method 'mysql_clear_password' not supported by any of the available plugins."

Does anyone know a way to resolve this error?

Thanks -Evan

linux mysql-v2-sensor slave

Created on Feb 20, 2020 4:34:37 PM

3 Replies



Hello EA,

PRTG uses small executable for this sensor, which also has got a debug interface. Please go to your PRTG installation directory and open the "Sensor System" subfolder. (Usually C:\Program Files (x86)\PRTG Network Monitor\Sensor System)

Now start the SQLv2.exe and a window will show that offers the same settings as the sensor. It is less comfortable and does not do any checks on the values you enter, please be careful. Enter your server information and the SQL query.

You get a result table or an authentication error again? In the latter case, please try to use alternative authentication option to the database.

Created on Feb 21, 2020 2:48:14 PM by  Arne Seifert [Paessler Support]

Last change on Feb 24, 2020 9:27:23 AM by  Moritz Heller [Paessler Support]



Thanks you for your reply.

I followed steps above and received the same authentication error.

Thanks again.

Created on Feb 21, 2020 3:34:53 PM



Hi EA,

In this case, I suspect wrong credentials or a missing setting in at the database server. Please validate whether the credentials are working. In addition, please check whether the Probe is allowed to access the database (Access host list)

Created on Feb 24, 2020 9:29:44 AM by  Moritz Heller [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.