How to create FTP user and assign quota in Solaris


File Transfer Protocol(FTP) is a network protocol used for the transfer of files between a client and server on network.

Step 1: Create User

First create FTP user by using following method.

# useradd test
# passwd test

Step 2: Create FTP user Directory

Make a directory in ftpdata folder

# cd /ftpdata/
# ls -l
# mkdir test
# chown test:staff test

Step 3: How to assign quota for FTP User in Solaris

In order to assign quota to FTP user below is the method.

# zfs create ftpdata/test
# zfs set quota=50M ftpdata/test

Thanks, all done 🙂

How to Jail FTP User

FTP is built on a client-server architecture and uses separate control and data connections between the client and the server.

Step 1: Prerequisites

To Jail FTP User firstly Configure FTP Server.

Step 2: Modify ftpusers File

Modify ftpusers File in /etc/vsftpd/ftpusers and list the users for jailing.

# vi /etc/vsftpd/ftpusers

Step 3: Configure vsftpd.conf File

If we jail ftp user then we make following settings.

# vim /etc/vsftpd/vsftpd.conf

Step 4: Restart the service

Now restart the service vsftpd

# service vsftpd restart

How To Create FTP Server in Linux


The File Transfer Protocol (FTP) is a standard network protocol used to transfer computer files from one host to another host over a TCP-based network, such as the Internet.
FTP is built on a client-server architecture and uses separate control and data connections between the client and the server. FTP users may authenticate themselves using a clear-text sign-in protocol, normally in the form of a username and password, but can connect anonymously if the server is configured to allow it. For secure transmission that protects the username and password, and encrypts the content, FTP is often secured with SSL/TLS (FTPS). SSH File Transfer Protocol (SFTP) is sometimes also used instead, but is technologically different.

Package Name:
Data Connection Port of FTP # 21
Data Transaction Port of FTP # 20

Step 1: Installation

Firstly we have to check the package vsftpd is installed in our machine, if not so then follow the steps:

# yum install -y vsftpd

Step 2: Start the service

# service vsftpd start

To Enable vsftpd in multi-user levels.

# chkconfig vsftpd on

Step 3: Configure vsftpd.conf File

Now edit the /etc/vsftpd/vsftpd.conf file.

vim /etc/vsftpd/vsftpd.conf
# Example config file /etc/vsftpd/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 anonymous FTP? (Beware - allowed by default if you comment this out).
# Uncomment this to allow local users to log in.
# Uncomment this to enable any form of FTP write command.
# 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)
# 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.
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
# The target log file can be vsftpd_log_file or xferlog_file.
# This depends on setting xferlog_std_format parameter
# Make sure PORT transfer connections originate from port 20 (ftp-data).
# 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!
# The name of log file when xferlog_enable=YES and xferlog_std_format=YES
# WARNING - changing this filename affects /etc/logrotate.d/vsftpd.log
# Switches between logging into vsftpd_log_file and xferlog_file files.
# NO writes to vsftpd_log_file, YES to xferlog_file
# You may change the default value for timing out an idle session.
# You may change the default value for timing out a data connection.
# 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.
# 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.
# 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.
# You may fully customise the login banner string:
ftpd_banner=Welcome to our FTP service.
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
# (default follows)
# 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().
# (default follows)
# 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.
# When "listen" directive is enabled, vsftpd runs in standalone mode and
# listens on IPv4 sockets. This directive cannot be used in conjunction
# with the listen_ipv6 directive.
# This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6
# sockets, you must run two copies of vsftpd with two configuration files.
# Make sure, that one of the listen options is commented !!

Step 4: Restart the service

Now restart the service vsftpd

# service vsftpd restart

Step 5: Create FTP Users

Now create FTP user:

# adduser -c 'FTP USER Test' -m test
# passwd test

To change the home directory of user, use the following command:

# usermod --home /var/www/ username

Note: If selinux is enabled on server, then execute the following command

# setsebool -P ftp_home_dir=1


FTP acoount is working now. You can use your FTP server. 🙂