通过 TLS 配置 VSFTPD

通过 TLS 配置 VSFTPD

该计算机的预期用途是充当 TLS 上的 FTP 服务器。

HT桥报告

如您所见,该证书的有效期为:

ftp.zalohovaniburian.cz

我不确定为什么 FileZilla 会显示这个:

FileZilla 警告

这里很长vsftpd.conf

# Example config file /etc/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.


allow_writeable_chroot=YES



#
# Run standalone?  vsftpd can run either from an inetd or as a standalone
# daemon started from an initscript.

listen=YES

#
# This directive enables listening on IPv6 sockets. By default, listening
# on the IPv6 "any" address (::) will accept connections from both IPv6
# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6
# sockets. If you want that (perhaps because you want to listen on specific
# addresses) then you must run two copies of vsftpd with two configuration
# files.

listen_ipv6=NO

#
# Allow anonymous FTP? (Disabled by default).

anonymous_enable=NO

#
# Uncomment this to allow local users to log in.

local_enable=YES

#
# Uncomment this to enable any form of FTP write command.

write_enable=YES

#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)

local_umask=022

#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# If enabled, vsftpd will display directory listings with the time
# in  your  local  time  zone.  The default is to display GMT. The
# times returned by the MDTM FTP command are also affected by this
# option.
use_localtime=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).

connect_from_port_20=YES

#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note that the default log file location is /var/log/xferlog in this case.
#xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd.banned_emails
#
# You may restrict local users to their home directories.  See the FAQ for
# the possible risks in this before using chroot_local_user or
# chroot_list_enable below.
#chroot_local_user=YES
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that
# the user does not have write access to the top level directory within the
# chroot)

chroot_local_user=YES

#chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#ls_recurse_enable=YES
#
# Customization
#
# Some of vsftpd's settings don't fit the filesystem layout by
# default.
#
# This option should be the name of a directory which is empty.  Also, the
# directory should not be writable by the ftp user. This directory is used
# as a secure chroot() jail at times vsftpd does not require filesystem
# access.
secure_chroot_dir=/var/run/vsftpd/empty
#
# This string is the name of the PAM service vsftpd will use.
pam_service_name=vsftpd
#
# This option specifies the location of the RSA certificate to use for SSL
# encrypted connections.

rsa_cert_file=/etc/ssl/certs/ftp-zalohovaniburian-cz.pem
rsa_private_key_file=/etc/ssl/private/ftp-zalohovaniburian-cz.key



# Turn on SSL
ssl_enable=YES

# Allow anonymous users to use secured SSL connections
allow_anon_ssl=YES

# All non-anonymous logins are forced to use a secure SSL connection in order to
# send and receive data on data connections.
force_local_data_ssl=YES

# All non-anonymous logins are forced to use a secure SSL connection in order to send the password.
force_local_logins_ssl=YES

# Permit TLS v1 protocol connections. TLS v1 connections are preferred
ssl_tlsv1=YES

# Permit SSL v2 protocol connections. TLS v1 connections are preferred
ssl_sslv2=NO

# permit SSL v3 protocol connections. TLS v1 connections are preferred
ssl_sslv3=NO

# Disable SSL session reuse (required by WinSCP)
require_ssl_reuse=NO

# Select which SSL ciphers vsftpd will allow for encrypted SSL connections (required by FileZilla)
ssl_ciphers=HIGH




#
# Uncomment this to indicate that vsftpd use a utf8 filesystem.
#utf8_filesystem=YES

答案1

这似乎是 filezilla 客户端的正常行为,无论证书是否由 CA 签名或证书是否为 x509(自签名证书 - 我在 ftps 设置中使用的证书)。无论您使用 filezilla ftp 服务器、vsftpd 还是任何其他 ftpd,都没有关系。

甚至 Digicert 的操作指南也显示了首次连接时出现的窗口:

https://www.digicert.com/ssl-certificate-installation-filezilla.htm

答案2

我也遇到过关于 Digicert 和 Komodo 下的 Terena 证书“错误证书”的问题。

发生的情况是,客户端通常不知道构建信任链的中间证书;在较旧的设备中,很少会出现根未知的情况。

因此,服务器必须以某种方式进行配置,以便为客户端提供完整的信任链。

对于 Radius,我构建了一个连接主机证书+中间根+根的 pem 文件,并将其定义为 FreeRaius 服务器中的我的证书。

在 Apache 中,我将主机证书作为证书提供,并将具有中间根+根证书的文件定义为证书链。

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