I set up two new CentOS 7 boxes simultaneously, so the configurations should be identical, just different ip addresses and host names.
I installed VSFTPD and configured for passive ports. One box connects fine, no issues, however the second box continuously throws me this error:
GnuTLS error -15: An unexpected TLS packet was received.
Here is the debug FileZilla trace:
Status: Connecting to 192.168.20.68:21...
Status: Connection established, waiting for welcome message...
Trace: CFtpControlSocket::OnReceive()
Response: 220 (vsFTPd 3.0.2)
Trace: CFtpControlSocket::SendNextCommand()
Command: AUTH TLS
Trace: CFtpControlSocket::OnReceive()
Response: 234 Proceed with negotiation.
Status: Initializing TLS...
Trace: CTlsSocket::Handshake()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnSend()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: TLS Handshake successful
Trace: Protocol: TLS1.2, Key exchange: ECDHE-RSA, Cipher: AES-256-GCM, MAC: AEAD
Status: Verifying certificate...
Status: TLS connection established.
Trace: CFtpControlSocket::SendNextCommand()
Command: USER datamover
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 331 Please specify the password.
Trace: CFtpControlSocket::SendNextCommand()
Command: PASS *******
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::Failure(-15)
Error: GnuTLS error -15: An unexpected TLS packet was received.
Trace: CRealControlSocket::OnClose(106)
Trace: CControlSocket::DoClose(64)
Trace: CFtpControlSocket::ResetOperation(66)
Trace: CControlSocket::ResetOperation(66)
Error: Could not connect to server
The error is always right after the password check.
I know the problem IS NOT SELinux, as I disabled that. The problem is also not the firewall, as I tried disabling the Firewall Daemon (firewalld).
Here is the relevant portion of the /etc/vsftpd/vsftpd.conf file.
listen=YES
listen_ipv6=NO
pasv_enable=YES
pasv_max_port=10100
pasv_min_port=10090
pasv_address=192.168.20.88
ssl_enable=YES
allow_anon_ssl=NO
force_local_data_ssl=YES
force_local_logins_ssl=YES
ssl_tlsv1=YES
ssl_sslv2=NO
ssl_sslv3=NO
ssl_ciphers=HIGH
require_ssl_reuse=NO
rsa_cert_file=/etc/ssl/private/vsftpd.pem
rsa_private_key_file=/etc/ssl/private/vsftpd.pem
I did a Google search but did not see any 15 error codes.
Thoughts?
Best Answer
I had same error after PASS command in CENTOS 7. (GnuTLS error -15: An unexpected TLS packet was received.)
My solution is following:
I had to add following to vsftpd.conf: