You can use the Veeam Agent for Linux command line interface to collect and export product logs. To export logs, use the following command:
veeamconfig config grablogs
Veeam Agent for Linux will collect logs, export them to an archive file with the name veeam_logs_<date>_<time>.tar.gz, and save the archive to the current working directory.
user@srv01:~$ veeamconfig config grablogs