Ubuntu FTP서버 설치 (FileZila 사용)

원격 빌드를 완료하여도 데이터셋을 서버PC에 옮기는 것은 귀찮은 작업이다.  더군다나 서버 PC가 먼 곳에 있다면 불가능하거나 시간소모가 클 것이다. 이 글에서는 원격 서버 PC에 FTP 파일 서버를 설치하여 데이터셋을 전송하는 FileZila를 사용해 FTP 파일 서버를 설치하는 내용을 다룬다.

1. 아이피타임 공유기를 사용한 FTP 포트포워딩

이전 글에서 SSH 포트포워딩을 통해 원격 접속 PC의 Pycham pro 버전에서 서버PC의 파이썬 인터프리터를 불러와 사용하는 원격 빌드를 다뤘다.

SSH 포트포워딩과 동일한 고정 IP 로 FTP 포트의 IP를 설정하고 외부 포트는 겹치지 않는 임의의 포트를 선택하고 내부 포트는 FTP 전용포트인 21로 설정한다.

공유기 설정이 끝났다. 

2. Ubuntu 서버 PC에 vsftpd 설치하기

아래 명령어로 ftp 서버 설치

$ sudo apt-get install vsftpd

설치가 끝나면 기본 설정값을 변경해야합니다. 기본 설치 경로의 설정 파일을 아래 명령어로 변경해줍시다.

$ sudo vim /etc/vsftpd.conf

아래 내용처럼 파일을 편집합니다. Bold체 로 표시한 곳이 중요한 곳입니다. Bold체 부분만 확인 후 변경해줍시다

=============================== sftpd.conf  파일 =====================================

# 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.

#

#

# Run standalone?  vsftpd can run either from an inetd or as a standalone

# daemon started from an initscript.

listen=NO

#

# 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=YES

#

# 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/ssl-cert-snakeoil.pem

rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key

ssl_enable=NO

#

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

#utf8_filesystem=YES

===============================================================================

변경이 끝나면 저장 후 아래 명령어로 vsftpd를 재시작합니다.

$ sudo service vsftpd restart

그 다음 아래 명령어로 filezila를 설치합니다.

$ sudo add-apt-repository ppa;n-muench/programs-ppa

$ sudo apt-get update

$ sudo apt-get install filezilla

이제 서버 PC에서 해야할 작업은 끝났습니다.

원격 접속 PC에 filezila를 설치합니다. 윈도우는 그냥 다운받고 설치하면 됩니다. 광고나 제휴 프로그램 설치가 많이 뜨므로 주의해서 가려가면 설치합시다.

설치가 끝나면 아래 그림처럼 FTP로 서버와 연결 후 빠르게 데이터를 주고 받을 수 있습니다. 3.3GB 파일이 30초만에 업로드되네요!

이전 두 개글과 이번 글을 통해 Filezilla로 데이터셋 옮기고 Pycharm으로 원격 빌드하여 딥러닝 모델을 학습하는 환경을 구성하는 과정을 다루었습니다.

감사합니다.