FTP/FTPS Health Monitor

The FTP/FTPS health monitor checks the health of the FTP servers configured as pool members. A file will be downloaded from the server. On successful download, the server is marked as UP. If the file transfer fails, the server is marked DOWN.

Configuring the FTP/FTPS Health Monitor

Configure FTP/ FTPS settings in a health monitor using the following fields through the CLI.

Field	Description
Filename	Enter the filename that has to be downloaded, including the full path. For example, ftp/testfile.txt.
Mode (Optional)	Select the data transfer modes (active/ passive). By default, passive mode is selected. Port mode (Active mode): The client sends port to the server on which the data connection can be established. It tells the server the same using the PORT <port-num> command on the control connection. In the passive mode, the client sends PASV command to server on the control connection. In response, the server sends IP and port where the data connection can be established.
Username	Enter the username if the FTP server requires authentication.
Password	Enter the password for the user account if the FTP server requires authentication.
SSL Attributes	Enter SSL Attributes in case of FTPS health monitor.

Note:

Currently FTP/FTPS health monitor can be configured only using the CLI.

A sample configuration of the FTP health monitor is as shown below:

[admin:avi-controller]: > configure healthmonitor ftp-hm
[admin:avi-controller]: healthmonitor> type health_monitor_ftp
[admin:avi-controller]: healthmonitor> authentication username aviuser
[admin:avi-controller]: healthmonitor:authentication> password xyz123
[admin:avi-controller]: healthmonitor:authentication> save
[admin:avi-controller]: healthmonitor> ftp_monitor filename ftp/ftptest
[admin:avi-controller]: healthmonitor:ftp_monitor> save
[admin:avi-controller]: healthmonitor> save

Note:

Ensure that an SSL Profile exists before configuring the FTPS health monitor.

An FTPS health monitor can be configured as shown below:

[admin:avi-controller]: > configure healthmonitor ftps-hm
[admin:avi-controller]: healthmonitor> type health_monitor_ftps
[admin:avi-controller]: healthmonitor> authentication username aviuser
[admin:avi-controller]: healthmonitor:authentication> password xyz123
[admin:avi-controller]: healthmonitor:authentication> save
[admin:avi-controller]: healthmonitor> ftps_monitor filename ftp/ftptest
[admin:avi-controller]: healthmonitor:ftps_monitor> ssl_attributes ssl_profile_ref System-Standard
[admin:avi-controller]: healthmonitor:ftps_monitor:ssl_attributes> save
[admin:avi-controller]: healthmonitor:ftps_monitor> save
[admin:avi-controller]: healthmonitor> save

The following are the SSL configurations that can be used for FTPS health monitor:

• SSL Profile: Select an existing SSL Profile or create a new one, as required. This defines the ciphers and SSL versions to be used for the health monitor traffic to the backend servers.

• PKI Profile: Select an existing PKI profile or create a new one, as required. This will be used as to validate the SSL certificate presented by the server.

• SSL Key and Certificate: Select an existing SSL Key and Certificate or create a new one, as required.