I install ProFTP from apt on fresh ubuntu 14.04 (OpenSSH+LAMP) with mod-sql for user login.
I set ftp folder for each user from config in sql table. And allow user to resume upload file by set
AllowStoreRestart on in configuration.
Everything work fine. User can upload/download manage file in their folder. If user stop upload queue in filezilla they can resume it later.
However, when internet connection not stable on client side. After internet connection down, sometime file that still uploading are disappear from a folder on server.
After investigation, I found that all file that disappear got error like this
[13/Jul/2014:14:15:37 +0000] 110.xx.xx.xx username STOR 426 2196991 788.205 Timeout exceeded: TimeoutStalled during data transfer failed Data connection closed
[13/Jul/2014:14:11:48 +0000] 110.xx.xx.xx username STOR 426 675945 211.340 Read EOF from client failed Data connection closed
Then, this file will disappear from folder and filezilla will try to upload from first byte again. I recheck xferlog and didn't found any delete request from client just incomplete upload message.
- Does anyone know why partially uploaded file disappear from upload folder?
- How to prevent this behavior of proftpd?
# proftpd -v ProFTPD Version 1.3.5rc3 # uname -a Linux testftp 3.13.0-30-generic #55-Ubuntu SMP Fri Jul 4 21:40:53 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux # mysql -V mysql Ver 14.14 Distrib 5.5.37, for debian-linux-gnu (x86_64) using readline 6.3
Include /etc/proftpd/modules.conf UseIPv6 on IdentLookups off ServerName "Debian" ServerType standalone DeferWelcome off MultilineRFC2228 on DefaultServer on ShowSymlinks on TimeoutNoTransfer 600 TimeoutStalled 600 TimeoutIdle 1200 DisplayLogin welcome.msg DisplayChdir .message true ListOptions "-l" DenyFilter \*.*/ RootLogin off DefaultRoot ~ RequireValidShell off Port 21 <IfModule mod_dynmasq.c> </IfModule> MaxInstances 30 User proftpd Group nogroup Umask 022 022 AllowOverwrite on TransferLog /var/log/proftpd/xferlog SystemLog /var/log/proftpd/proftpd.log <IfModule mod_quotatab.c> QuotaEngine off </IfModule> <IfModule mod_ratio.c> Ratios off </IfModule> <IfModule mod_delay.c> DelayEngine on </IfModule> <IfModule mod_ctrls.c> ControlsEngine off ControlsMaxClients 2 ControlsLog /var/log/proftpd/controls.log ControlsInterval 5 ControlsSocket /var/run/proftpd/proftpd.sock </IfModule> <IfModule mod_ctrls_admin.c> AdminControlsEngine off </IfModule> Include /etc/proftpd/sql.conf AllowStoreRestart on Include /etc/proftpd/conf.d/
- Normally, Files that transfer to this server are more than 5GB.