VSFTPD - FTP over TLS - Upload stops after exactly 82k?
I installed a VSFTP daemon on a CentOS server, using a RSA certificate for logging in using explicit TLS. Now, I cannot upload more than 82k.
With files under that limit, there is no problem. The FTP works like a charm. But as soon as a file reaches 82k with FileZilla (81,952 bytes to be exact), the transfer will stop, and the FTP client hangs until time out is reached.
FTP client console:
15:10:21 Command: STOR jquery-1.7.2.min.js
15:10:21 Response: 150 Ok to send data.
15:11:21 Error: Connection timed out
15:11:21 Error: File transfer failed after transferring 82 KB in 60 seconds
/var/log/vsftpd.log
FTP command: Client "x.x.x.x", "STOR jquery-1.7.2.min.js"
FTP response: Client "x.x.x.x", "150 Ok to send data."
OK UPLOAD: Client "x.x.x.x", "jquery-1.7.2.min.js", 81952 bytes, 1.32Kbyte/sec
FTP response: Client "x.x.x.x", "226 File receive OK." // NOT okay, file is bigger
// No mention of error here
I cannot find relevant info about this problem, apart from a possible problem with trans_chunk_size (not mentioned in default config), but I tried different sizes and it has no impact on the problem.
trans_chunk_size=4096trans_chunk_size=8192trans_chunk_size=9999
Ofcourse, after every configuration change, I restarted the server:/etc/init.d/vsftpd restart
What else can cause this?
It's not the latest version, but it's the latest update within the repositories that has been deemed fit for enterprise usage:
Package info:
$ yum info vsftpd
Loaded plugins: fastestmirror
Installed Packages
Name : vsftpd
Arch : x86_64
Version : 2.0.5
Release : 24.el5_8.1
Size : 286 k
Repo : installed
Summary : vsftpd - Very Secure Ftp Daemon
URL : http://vsftpd.beasts.org/
License : GPL
Description: vsftpd is a Very Secure FTP daemon. It was written completely from scratch.
It sounds like the problem is at the client side. Have you tried another client program: lftp, TLSWrap, ...?
- http://trac.filezilla-project.org/ticket/7837
- https://savannah.gnu.org/support/?107660