Package: proftpd-basic Version: 1.3.6-4 Some users (generally a distance away from the server) when attempting to upload files larger than 2mb the server closes the connection. Smaller files upload fine. Error as seen in the log (/var/log/proftpd/proftpd.log) for each attempt:
notice: user testuser: aborting transfer: Interrupted system call The problem does not exist with the same configuration in version 1.3.5b-4. Added configuration items from stock. Various files in /etc/proftpd/conf.d/* containing DefaultRoot /home/UserName/Website UserName DeleteAbortedStores on AllowStoreRestart on and in proftpd.conf RequireValidShell off MasqueradeAddress insert.wan.ip.here This is on an up to date 14/02/2019 buster installation Seems to be the same problem as expressed here. https://github.com/proftpd/proftpd/issues/668#issuecomment-357406734 (https://github.com/proftpd/proftpd/issues/668#issuecomment-357406734)