In my syslog I see pure-ftpd: (?@::1) [ERROR] altlog /var/log/pure-ftpd/transfer.log: Permission denied I am Unsure what the effect will be and what permission the file needs ISPConfig Version: 3.2.4 Description: Ubuntu 18.04.1 LTS
Dunno, either transfers aren't logged, or the daemon doesn't run I'd guess. On Debian 10 it is owned by root, mode 644. I don't have a ubuntu server to verify, but often they're the same.
on ubuntu, it's root:root mode 755 for the /var/log/pure-ftpd folder itself, and root:root mode 644 for the transfer.log file