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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On 5/31/2018 8:01 AM, Frank M. Ramaekers wrote:
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/)
Here's what I'm using. The tutorial site I used is currently down with a bandwidth exceeded warning, so I guess it must be quite popular.
I'm using LetsEncrypt certificates. My site domain is replaced with example.com. Use your own domain name there as registered with LetsEncrypt.
# see # http://beginlinux.com/blog/2009/01/secure-ftp-with-ssl-on-centos/
rsa_cert_file=/etc/letsencrypt/live/example.com/fullchain.pem rsa_private_key_file=/etc/letsencrypt/live/example.com/privkey.pem ssl_enable=YES force_local_logins_ssl=NO force_local_data_ssl=NO ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES
# limit pasv ports to range that iptables can check pasv_min_port=6900 pasv_max_port=6969
# added 20120213 to deal with FileZilla 3.5.3 stricter cipher list # see http://forum.filezilla-project.org/viewtopic.php?f=2&t=23275 ssl_ciphers=HIGH
dual_log_enable=YES
allow_writeable_chroot=YES user_sub_token=$USER
Followup:
I gave up on the Implicit and configured vsftpd for Explicit, that revealed some configuration errors (displayed on the client, Filezilla in my case). I then corrected these errors and switched back to Implicit and all is well.
Frank M. Ramaekers Jr.
-----Original Message----- From: CentOS [mailto:centos-bounces@centos.org] On Behalf Of Kenneth Porter Sent: Thursday, May 31, 2018 12:18 PM To: centos@centos.org Subject: Re: [CentOS] Definitive guide to setting up FTPIS on vsftpd
On 5/31/2018 8:01 AM, Frank M. Ramaekers wrote:
I have a new CentOS 7.4 (recently upgraded to 7.5) system that I have been struggling with in configuring vsftpd for FTPS Implicit (port 990). (The latest instructions I've used are at:https://urldefense.proofpoint.com/v2/url?u=https-3A__www.unixmen.co m_configure-2Dvsftpd-2Dssltls-2Dcentos-2D7_&d=DwICAg&c=laxeQK7vPmHfouI IPNyCfbQd49eK3u00U8Jdo0RFvts&r=EOaM1MkMLG24_TOy4m7EdDoX0CP9-c0YJ2kTdea gcqQ&m=pOhXDNk2HbQgZLcLf-QR_SwfNLQr4nYWByJ7xBAEhzo&s=MIMN2O4U1bk8mfuZf mBjQkQ6zM-uOHJ2XrMyrqs_U3E&e=)
Here's what I'm using. The tutorial site I used is currently down with a bandwidth exceeded warning, so I guess it must be quite popular.
I'm using LetsEncrypt certificates. My site domain is replaced with example.com. Use your own domain name there as registered with LetsEncrypt.
# see # https://urldefense.proofpoint.com/v2/url?u=http-3A__beginlinux.com_blog_2009...
rsa_cert_file=/etc/letsencrypt/live/example.com/fullchain.pem rsa_private_key_file=/etc/letsencrypt/live/example.com/privkey.pem ssl_enable=YES force_local_logins_ssl=NO force_local_data_ssl=NO ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES
# limit pasv ports to range that iptables can check pasv_min_port=6900 pasv_max_port=6969
# added 20120213 to deal with FileZilla 3.5.3 stricter cipher list # see https://urldefense.proofpoint.com/v2/url?u=http-3A__forum.filezilla-2Dprojec... ssl_ciphers=HIGH
dual_log_enable=YES
allow_writeable_chroot=YES user_sub_token=$USER
_______________________________________________ CentOS mailing list CentOS@centos.org https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.centos.org_mailma...
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--On Wednesday, June 06, 2018 3:08 PM +0000 "Frank M. Ramaekers" FRamaekers@ailife.com wrote:
I gave up on the Implicit and configured vsftpd for Explicit, that revealed some configuration errors (displayed on the client, Filezilla in my case). I then corrected these errors and switched back to Implicit and all is well.
Can you say what was wrong? That might help others who encounter the same problems or help improve the documentation on the settings.
Do you use etckeeper? It puts /etc under git revision control, so you easily check your configuration changes over time. It's pretty easy to set up.
Well, it was a couple of parameters. chroot_username had an undefined user, and there was something else that I can't seem to remember.
Best practice is to setup the Explicit FTPS first, get it working then add:
implicit_ssl=yes listen_port=990
Frank M. Ramaekers Jr.
-----Original Message----- From: CentOS [mailto:centos-bounces@centos.org] On Behalf Of Kenneth Porter Sent: Wednesday, June 6, 2018 9:36 AM To: CentOS mailing list Subject: Re: [CentOS] Definitive guide to setting up FTPIS on vsftpd
--On Wednesday, June 06, 2018 3:08 PM +0000 "Frank M. Ramaekers" FRamaekers@ailife.com wrote:
I gave up on the Implicit and configured vsftpd for Explicit, that revealed some configuration errors (displayed on the client, Filezilla in my case). I then corrected these errors and switched back to Implicit and all is well.
Can you say what was wrong? That might help others who encounter the same problems or help improve the documentation on the settings.
Do you use etckeeper? It puts /etc under git revision control, so you easily check your configuration changes over time. It's pretty easy to set up. _______________________________________________ CentOS mailing list CentOS@centos.org https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.centos.org_mailma...
---------------------------------------------------------------------- This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at PrivacyAct@torchmarkcorp.com.
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Frank M. Ramaekers -
Kenneth Porter