TLS를 통해 VSFTPD 구성

TLS를 통해 VSFTPD 구성

이 컴퓨터의 용도는 TLS를 통한 FTP 서버 역할을 하는 것입니다.

HT 브리지 보고서

보시다시피 인증서는 다음에 유효합니다.

ftp.zalohovaniburian.cz

FileZilla가 왜 이것을 표시하는지 잘 모르겠습니다.

FileZilla 경고

여기는 매우 깁니다 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

답변1

이는 인증서가 CA에 의해 서명되었는지 또는 인증서가 x509(자체 서명된 인증서 - FTP 설정에서 사용하는 인증서)인지 여부에 관계없이 filezilla 클라이언트의 정상적인 동작인 것 같습니다. filezilla ftp 서버, vsftpd 또는 다른 ftpd를 사용하는지 여부는 중요하지 않습니다.

Digicert의 방법 가이드에도 처음 연결할 때 나타나는 창이 표시됩니다.

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

답변2

또한 Digicert 및 Komodo의 Terena 인증서에서 "잘못된 인증서" 문제가 발생했습니다.

클라이언트는 일반적으로 오래된 장치에서 신뢰 체인을 구축하는 중간 인증서를 알지 못하고 루트를 알 수 없는 경우도 있습니다.

따라서 클라이언트에게 완전한 신뢰 체인을 제공하려면 서버를 특정 방식으로 구성해야 합니다.

Radius의 경우 호스트 인증서 + 중간 루트 + 루트를 연결하는 pem 파일을 만들고 이를 FreeRaius 서버에서 내 인증서로 정의했습니다.

Apache에서는 호스트 인증서를 인증서로 제공하고 중간 루트 + 루트 인증서가 포함된 파일을 인증서 체인으로 정의합니다.

관련 정보