Thank you for your answers. I tried to use the command "find /var/log -size +500M" to find the relevant files, but there were too many, and I couldn't display all the results in CLI mode. I also tried to adjust the window size, but I still couldn't. As a result, I couldn't use WinSCP to find all the relevant files and export them or perform other operations.
How can I adjust the window size or move the CLI screen?
Also, are these files over 500M safe to export or Delete?
According to the official instructions provided by PhoneBoy, It seems I need to contact technical support. However, I am unable to do so at this time for some reason.
I am afraid of damaging the firewall. I would like to ask about it first. Thank you.