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This article mainly introduces the case of building a FTP server under the Ubuntu16.04 environment, which is very detailed and has a certain reference value. Interested friends must read it!

Build FTP server by Ubuntu16.04

Install ftp

Install ftp:

Sudo apt-get updatesudo apt-get install vsftpd

Check to see if ftp is installed:

Vsftpd-version

Change the configuration file

Note that you use the sudo command to get root permissions

Open the configuration file:

Sudo vim / etc/vsftpd.conf

Make the following changes:

# 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 is used by most other ftpd's # 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# made efforts to find a place to live in chownfields, 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 isa 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=YESchroot_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=ftp## This option specifies the location of the RSA certificate to use for SSL# encrypted connections.rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pemrsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.keyssl_enable=NO## Uncomment this to indicate that vsftpd use a utf8 filesystem.utf8_filesystem=YES

After exiting edit mode, use: wq to save and exit vim.

Create a ftp user

The operation here requires root permission. If the operation is rejected, use sudo:

Sudo mkdir / home/ftpdirsudo useradd ftpdir-d / home/ftpdir-msudo passwd ftpdirsudo mkdir / home/ftpdir/ftpsudo chmod 777-R / home/ftpdir/ftpusermod-s / sbin/nologin ftpdir

After the configuration is complete, add the user:

Sudo vim / etc/vsftpd.chroot_list

Add ftpdir to the file.

Ftpdir

At this point, the whole process of building the ftp is complete, and then it's about how to use it.

Start or restart ftp

Start or restart ftp:

Service vsftpd startservice vsftpd restart

View ftp status:

Service vsftpd status

To shut down the ftp service, you can use the following command:

Service vsftpd stop

View server ip

Open the command side

Robot@robot:~$ ifconfigenp4s0f2 Link encap:Ethernet HWaddr 74:d0:2b:ec:fa:f9 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0B) TX bytes:0 (0.0B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 Inet6 addr: 1Comp128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:12840 errors:0 dropped:0 overruns:0 frame:0 TX packets:12840 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1174976 (1.1 MB) TX bytes:1174976 (1.1 MB) wlp3s0 Link encap:Ethernet HWaddr 24:fd:52:85:42:0c inet addr:192.168.1.110 Bcast:192.168.1 .255 Mask:255.255.255.0 inet6 addr: fe80::c13c:b38e:69c7:cdf2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:99764 errors:0 dropped:0 overruns:0 frame:0 TX packets:95225 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:98718687 (98.7 MB) TX bytes:14326894 (14.3 MB)

Since wifi is connected here, the corresponding ip address found here in wlp3s0 is 192.168.1.110 (if you connect the network cable, look for ip in the first paragraph. The configuration of each computer is different, which can be considered according to the actual situation).

Landing

Use filezilla or open the file manager and enter ftp://ipaddress

Turn on the computer and enter the ip address ftp://192.168.1.110 of the server

Enter the user name and password. The user name used here is ftpdir and the password is 123456.

Finally, you can see the created folder on the server.

File location on ubuntu

After the ftp server is built and tested, where are the files stored in the service and how can they be found?

In the section of creating users, the ftpdir folder is created here in the / home directory, and a readable and writable folder ftp is created in the ftpdir folder. In the subsequent file transfer, you can switch to the ftp folder to find files. You need to use sudo to obtain permissions here.

Robot@robot:~$ cd / home/ftpdir/ftprobot@robot:/home/ftpdir/ftp$ ls Rubik's Cube. Zip above is all the content of this article entitled "the case of building a FTP server in Ubuntu16.04 environment". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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