I have a new CentOS 7.4 (recently upgraded to 7.5) system that I have been struggling with in configuring vsftpd for FTPS Implicit (port 990).
(The latest instructions I've used are at: https://www.unixmen.com/configure-vsftpd-ssltls-centos-7/)
Using Filezilla client, I get:
Error: GnuTLS error -15: An unexpected TLS packet was received.
Error: Could not connect to server
Using Core FTP LE:
SL/TLS error - 0, SSL error - 1, error:00000001:lib(0):func(0):reason(1)
SSL Connection not established
Using WinSCP:
TLS connect: error in SSLv2/v3 read server hello A
TLS connect: error in SSLv2/v3 read server hello A
Can't establish TLS connection
Disconnected from server
lftp from a remote Linux:
Fatal error: gnutls_handshake: An unexpected TLS packet was received.
Debugging, I get:
...
GNUTLS: EXT[0x2aa440f42d0]: sent signature algo (2.3) ECDSA-SHA1
GNUTLS: EXT[0x2aa440f42d0]: Sending extension SIGNATURE ALGORITHMS (22 bytes)
GNUTLS: HSK[0x2aa440f42d0]: CLIENT HELLO was queued [268 bytes]
GNUTLS: REC[0x2aa440f42d0]: Preparing Packet Handshake(22) with length: 268 and min pad: 0
GNUTLS: ENC[0x2aa440f42d0]: cipher: NULL, MAC: MAC-NULL, Epoch: 0
GNUTLS: REC[0x2aa440f42d0]: Sent Packet[1] Handshake(22) in epoch 0 and length: 273
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: REC[0x2aa440f42d0]: SSL 48.48 Unknown Packet packet received. Epoch 0, length: 8271
GNUTLS: ASSERT: gnutls_record.c:572
GNUTLS: Received record packet of unknown type 53
GNUTLS: ASSERT: gnutls_record.c:1076
GNUTLS: ASSERT: gnutls_record.c:1158
GNUTLS: ASSERT: gnutls_buffers.c:1409
GNUTLS: ASSERT: gnutls_handshake.c:1446
GNUTLS: ASSERT: gnutls_handshake.c:2757
**** gnutls_handshake: An unexpected TLS packet was received.
GNUTLS: REC[0x2aa440f42d0]: Start of epoch cleanup
GNUTLS: REC[0x2aa440f42d0]: End of epoch cleanup
GNUTLS: REC[0x2aa440f42d0]: Epoch #0 freed
GNUTLS: REC[0x2aa440f42d0]: Epoch #1 freed
---- Closing control socket
TIA!
Frank M. Ramaekers Jr. | Systems Programmer | Information Technology | American Income Life Insurance Company | 254-761-6649 (732-6649)
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