If you’re using Virtualmin on your servers and have a few odd FTP error messages (happened for me using SFTP too), then it’s one of three things.
- Disk quota for the hosting account has exceeded
- Server has ran out of memory
- The configuration options below need to be set in
As mentioned above, I found that these two options added into
/etc/proftpd.conf fixed the file write issue in some cases:
AllowRetrieveRestart on AllowStoreRestart on