Slow upload over TLS
|Operating system type:
|Operating system version:
|Mint 19 (kernel 4.19.0)
When uploading files while using explicit TLS connection the progress bar in queue log will reach 100% (file uploads) and stay at that point until the connection times out (after whatever amount of seconds I set in the settings). At this point the file is actually transferred (I've tried canceling the process queue and refreshing server listing) but filezilla marks the upload as failed and will retry to upload the same file asking me if I want to rewrite the existing file in the process.
It will do that for every file in the upload queue until it reaches the maximum number of retries.
This only happens on my linux machines and over TLS connection, if I boot windows on any of them, upload over TLS works flawlessly, so I suppose that rules out the server (vsFTPd 3.0.3 with virtual users running on Debian 9.6.0)
Correct ports are open on the server firewall and I've also tried disabling firewalls on both sides, didn't help.
Certificate was generated with certbot software package.