GnuTLS error -9

[Brandon Williams]

None of the tickets opened previously by other people have been fully answered. Most went unanswered (by the submitter) and got closed. My issue is using the Linux distribution of Filezilla got me the following output when connecting from my computer:

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Status:	Resolving address of bacs200.unco.edu
Status:	Connecting to 138.86.64.27:21...
Status:	Connection established, waiting for welcome message...
Response:	220 Microsoft FTP Service
Command:	AUTH TLS
Response:	234 AUTH command ok. Expecting TLS Negotiation.
Status:	Initializing TLS...
Error:	GnuTLS error -9: A TLS packet with unexpected length was received.
Status:	Server did not properly shut down TLS connection
Error:	Could not connect to server

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I run Linux Mint 17.3 Cinnamon 64 bit. This error occurred on February 23, 2018 and I've been running through possible solutions thus far. Before Feb. 23, I've been using a Mac to connect to the same server without any problems. The server information is (areas with <* *> are sensitive areas and are ommitted):

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Host: <*site_domain*>.edu
Port:
Protocol: FTP - File Transfer Protocol
Encryption: Require explicit FTP over TLS
Logon Type: Normal
Username: <*user name*>
Password: <*password*>
Server Type: Default
~Other settings are set to default.

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I've made sure all settings are correct and are identical to my Mac configuration. I've seen suggestions to edit TLS settings or config files and I'm both hesitant and incompetent in performing these solutions. Thank you for your time and I look forward to a reply at your earliest convenience.

*If it makes any difference, Filezilla was installed through mintInstall7.6.3 'Software Manager'

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FileZilla Client

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Version: 3.7.3

Build information:

Compiled for: x86_64-pc-linux-gnu
Compiled on: x86_64-pc-linux-gnu
Build date: 2013-09-14
Compiled with: gcc (Ubuntu/Linaro 4.8.1-10ubuntu1) 4.8.1
Compiler flags: -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -g -fexceptions -std=gnu++11

Linked against:

wxWidgets: 2.8.12
GnuTLS: 2.12.23
SQLite: 3.8.2

Operating system:

Name: Linux 3.19.0-32-generic x86_64
Version: 3.19

[Tim Kosse]

You have to update to the most recent version of FileZilla, we cannot support antique versions.

[Brandon Williams]

Can you direct me to a specific installation guide for FileZilla 3.31.0?

[Brandon Williams]

That is to say, sudo apt-get upgrade filezilla only says that the 3.7.3 is the latest version. When I download the tar file from filezilla-project.org and go through all the bells and whistles and go to either run ./filezilla or /opt/FileZilla3/bin/filezilla I get the following:

/opt/FileZilla3/bin/filezilla: /lib/x86_64-linux-gnu/libdbus-1.so.3: no version information available (required by /opt/FileZilla3/bin/filezilla)
/opt/FileZilla3/bin/filezilla: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.22' not found (required by /opt/FileZilla3/bin/filezilla)
/opt/FileZilla3/bin/filezilla: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /opt/FileZilla3/bin/filezilla)
/opt/FileZilla3/bin/filezilla: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /opt/FileZilla3/bin/filezilla)
/opt/FileZilla3/bin/filezilla: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /opt/FileZilla3/bin/filezilla)
/opt/FileZilla3/bin/filezilla: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /opt/FileZilla3/bin/filezilla)
/opt/FileZilla3/bin/filezilla: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /opt/FileZilla3/bin/filezilla)

[Tim Kosse]

You need to compile FileZilla, and any missing dependencies, from source. The configure script will tell you what's missing.

I recommend installing FileZilla and the missing dependencies into a new prefix to avoid any conflict with existing system files.