Oleh : Imam A.W., S.Kom., M.Kom.

  • Instalasi VSFTPD dengan perintah
    root@ubuntu:/# sudo apt-get install vsftpd
    					

    Restart service VSFTPD dengan perintah :

    root@ubuntu:/# /etc/init.d/vsftpd restart
    					

    Rather than invoking init scripts through /etc/init.d, use the service(8)

    utility, e.g. service vsftpd restart

    Since the script you are attempting to invoke has been converted to an

    Upstart job, you may also use the stop(8) and then start(8) utilities,

    e.g. stop vsftpd ; start vsftpd. The restart(8) utility is also available.

    vsftpd stop/waiting

    vsftpd start/running, process 1244

    Untuk menghentikan service VSFTPD gunakan perintah :

    root@ubuntu:/# /etc/init.d/vsftpd stop
    					

    Rather than invoking init scripts through /etc/init.d, use the service(8)

    utility, e.g. service vsftpd stop

    Since the script you are attempting to invoke has been converted to an

    Upstart job, you may also use the stop(8) utility, e.g. stop vsftpd

    vsftpd stop/waiting

    Untuk menjalankan service VSFTPD gunakan perintah :

    root@ubuntu:/# /etc/init.d/vsftpd start
    					

    Rather than invoking init scripts through /etc/init.d, use the service(8)

    utility, e.g. service vsftpd start

    Since the script you are attempting to invoke has been converted to an

    Upstart job, you may also use the start(8) utility, e.g. start vsftpd

    vsftpd start/running, process 1230

    Untuk melihat service VSFTPD gunakan perintah :

    root@ubuntu:/# /etc/init.d/vsftpd status
    					

    Rather than invoking init scripts through /etc/init.d, use the service(8)

    utility, e.g. service vsftpd status

    Since the script you are attempting to invoke has been converted to an

    Upstart job, you may also use the status(8) utility, e.g. status vsftpd

    vsftpd start/running, process 436

  • Konfigurasi file vsftpd berada di direcotory /etc/vsftpd.conf. Untuk mengkonfigurasinya gunakan perintah :

    root@ubuntu:/#pico /etc/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.

    #

    #

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

    # daemon started from an initscript.

    listen=YES

    #

    # Run standalone with IPv6?

    # Like the listen parameter, except vsftpd will listen on an IPv6 socket

    # instead of an IPv4 one. This parameter and the listen parameter are mutually

    # exclusive.

    #listen_ipv6=YES

    #

    # Allow anonymous FTP? (Beware – allowed by default if you comment this out).

    anonymous_enable=YES

    #

    # 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=Selamat Datang ES.

    #

    # 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().

    #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

    #

    #

    # Debian customization

    #

    # Some of vsftpd’s settings don’t fit the Debian filesystem layout by

    # default. These settings are more Debian-friendly.

    #

    # 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

  • Restart Vsftpd dengan perintah :
    root@ubuntu:/# /etc/init.d/vsftpd restart
    					
  • Untuk dapat memetakan user dengan directori ketika user login maka lakukan :
    • Buat user dengan perintah

      root@ubuntu:/#useradd imam

    • Konfigurasi password user imam dengan perintah
      root@ubuntu:/#passwd imam
      
      Masukkan password yang diinginkan dan verifikasi kembali password tersebut.
      
    • Buat sebuah directori
      root@ubuntu:/#mkdir /home/imam
      
    • Buat sebuah user yang dipetakan ke direktorinya
      root@ubuntu:/#useradd –d /home/imam imam
      
    • Buat password untuk user tersebut
    • Atur hak akses usernya
      root@ubuntu:/#chown imam /home/imam 
      

    • Atur hak akses direktori tersebut ke user yang diinginkan
      root@ubuntu:/#chmod 775 –R /home/imam
      
  • Lakukan uji dari client menggunakan ftpclient seperti filezilla atau yang lainnya. Pastikan ftpclient telah terinstal dengan baik.
  • Masukkan domain/ip address server, user dan password ftp. Uploadlah file/folder dari computer local ke computer server menggunakan ftpclient ini.

  • Log vsftp dapat dilihat dengan cara

    root@ubuntu:/# tail -f /var/log/vsftpd.log

    Tue Nov 6 17:11:02 2012 [pid 2] CONNECT: Client “192.168.137.1”

    Tue Nov 6 17:11:02 2012 [pid 1] [jomla] OK LOGIN: Client “192.168.137.1”

    Tue Nov 6 17:12:33 2012 [pid 2] CONNECT: Client “192.168.137.1”

    Tue Nov 6 17:12:35 2012 [pid 1] [imam] FAIL LOGIN: Client “192.168.137.1”

    Tue Nov 6 17:12:39 2012 [pid 2] CONNECT: Client “192.168.137.1”

    Tue Nov 6 17:12:39 2012 [pid 1] [jomla] OK LOGIN: Client “192.168.137.1”

    Tue Nov 6 17:13:10 2012 [pid 2] CONNECT: Client “192.168.137.1”

    Tue Nov 6 17:13:10 2012 [pid 1] [jomla] OK LOGIN: Client “192.168.137.1”