Is it possible to change the default retention of FTP Log files in Plesk?

1. Connect to the server via SSH
2. Open /usr/local/psa/etc/logrotate.conf in any text editor and change global FTP rotation settings:
   

   CONFIG_TEXT: /usr/local/psa/var/log/xferlog.processed {
   missingok
   rotate 3
   size 10M
   compress
   nocreate

Note: More information about logrotate options available in the following documentation: Logrotate

It is not possible to change the default retention value for FTP logs. Alternatively, the rotated FTP logs can be saved in a custom directory so that Plesk does not delete them:

1. Connect to the server via RDP;

2. Open CMD and add the following key into the registry:

   C:\> REG ADD "HKLM\SOFTWARE\PLESK\PSA Config\Config" /v SaveFTPLogsDirectory /t REG_SZ /d "path to directory" /reg:32 /f

Note: Specify the exact path to the directory like C:\ftplogs