Adding Users and Modifying User Settings – Cerberus Support

Users can be added and modified in the Cerberus FTP Server user database by opening up the User Manager and selecting the Users tab.

The Cerberus FTP Server User Manager's Users Page

To add a user, click the New button from the button group along the right side of the page. A new user popup will appear. All usernames must be unique and are case-insensitive. Once you have entered the new username, continue filling out the remaining fields. The user can then be configured by clicking on the additional buttons above the details.

Individual User Settings

The additional buttons (Profile, Constraints, Authentication, and Allowed Protocols) The most commonly used of these properties are as followed:

Profile Tab

Profile tab for a User

Username	The username this account will use to log in. (Required)
Email	An email address to associate with the user account. This email address may be used as the 'from' address when creating public shares and the 'to' address when sending password reset emails. (Optional)
First Name, Last Name, Telephone, Mobile	Optional Information fields for the user
Description	A description field for the user account
Primary Group	A Cerberus FTP Server Group that this user belongs to. All of the user's settings are overridden by the settings of the Primary Group.
Secondary Groups	Additional Groups the user is assigned to in order to add access to additional virtual directories. User settings are NOT overridden by Secondary Groups, they merely grant the user access to the virtual directories assigned to the group.
Last Login Time	The time that the user last logged into Cerberus FTP Server
Last Login IP	The last recorded IP address that the user logged in from.
Password Last Changed	The date when the user's password was last changed.
Creation Date	The date when the user was created in Cerberus FTP Server

Constraints Tab

Constraints tab for a User

Password Never Expires	If checked, the user's password never expires.
User Can Change Password	Controls whether a user can change their password through the HTTP/S web client or through SSH SFTP or FTP commands.
Disabled	Determines whether the account can log in or not. A disabled account cannot log in to the server.
Anonymous	If checked, the user password is ignored and the user can be logged in using any password.
Max Logins	The maximum number of connections this user can make to the server at the same time.
Disable Date	If a date is set here then the account will become disabled after the date specified. Note: The granularity of the timer is 30 minutes. The account will be disabled within 30 minutes of the time set.
Max Upload Filesize	This field can be used to limit the maximum size of an uploaded file. This value defaults to unlimited. The file size is specified in bytes. Specify 0 or any non-positive value to reset the maximum file size to unlimited.
Allowed IP Addresses	A comma-separated list of IP addresses that this user can log in from. If no IP addresses are specified then no per-user IP address filtering is enforced. IP addresses can be specified as a single IP, a range of IP addresses separated by a dash with no spaces, e.g. 192.168.0.100-192.168.0.150, or a CIDR-formatted IP address range. Adding spaces before and after the dash will invalidate the IP range. Multiple formats can be combined, with each single IP or range separated by a comma. Note, global IP address deny lists or allow lists are always enforced first, regardless of this setting.

Authentication Tab

Authentication tab for a User

SSH Authentication Method

Determines the authentication requirements for logging into an SFTP interface. Valid options are:

Password Only: Require only a password for authentication.
Public Key Only: Require only a valid public key for authentication
Public Key and Password: Require both a valid public key and a valid password for authenticating a user.
Public Key or Password: Require either a valid public key or a valid password for authenticating a user.

For more information on SSH Public Key Authentication, please refer to our support article

Configuring a user for SSH Public Key Authentication

Multifactor Authentication (2FA)	Determines if Two Factor authentication is allowed or required.
Allow 2 Factor	This option allows users to set up 2FA if they choose to
Require 2 Factor for HTTP/S	This makes 2FA a requirement when using the HTTP/S web client.
Require 2 Factor for SSH SFTP/SCP	If a user has 2FA enabled, and has this option enabled, they will be required to enter the 2FA code while using SFTP/SCP.
2 Factor for SSH SFTP/SCP	Controls the 2FA behavior for users when using the SFTP protocol. Ignore: Cerberus will bypass the use of 2FA for SSH and SFTP/SCP protocols, regardless of the status of 2 2-factor authentication. In this case, the user will not be required to enter 2FA credentials. Please note, this is not a recommended option unless absolutely necessary. A “warning badge” will be visible in the Summary page if this setting is on for the user. Require When Status Enabled: Cerberus will require 2FA for SSH and SFTP/SCP protocols provided the status of 2 Factor Authentication is “Enabled”. In other words, the user will be required to enter 2FA credentials if the status of 2FA is enabled. If the status of 2FA is disabled, the user will not be required to enter 2FA credentials. Require: Regardless of the status of 2 Factor Authentication, Cerberus will expect 2FA authentication for that user. If the status of 2 Factor Authentication is “Enabled”, the user will be able to authenticate via 2FA. If the status of 2 Factor Authentication is “Disabled”, the user won’t be able to authenticate as they won’t have the 2FA credentials but Cerberus will still expect them for successful authentication.
Do not allow FTP/S logins (No 2FA)	This option will not allow users to login via FTP/S when 2FA is enabled.
2 Factor Authentication Status	Shows whether 2FA is currently enabled on the account. Enabled User has enabled 2FA for their account. Once two-factor authentication is enabled for a user account you can disable it at any time by pressing Disable 2FA Disabled User does not have 2FA enabled for their account.

For more information on Multifactor Authentication, please refer to our support articles on Two Factor Authentication

Allowed Protocols Tab

Allowed Protocols page for a User

Permitted Login Protocols

Controls which protocols a user is allowed to log in with. If a protocol is not checked then the user will not be allowed to log in using that protocol.

FTP Only Settings	These settings only apply when the user logs in using FTP.
Require Secure Control	If enabled, this user can only log in to the server using a secure TLS/SSL encrypted connection.
Require Secure Data	If enabled, file transfers will only be allowed over secure TLS/SSL encrypted connections.

Virtual Directories Tab

See Adding a virtual directory to a user account for detailed information on how to add virtual directories to the user account.

Comments

3 comments

Graham Measures

September 03, 2019 07:40
How do you setup a user to a specific port for FTPS explicit over TLS . eg port 989
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Dana Anderson
Product Support

September 03, 2019 14:39
Hello, Graham.

While you can't specify the port, you can controls which protocols a user is allowed to log in with.

If you wanted your user to use only FTPS:

Click on constraints
From here you can enable/disable the protocols you wish for the end-user to use. In your case, Only "AllowFTPS" would be checked.
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Joachim Reckers

April 08, 2021 12:09
We use the "allowed IP addresses" field as an extra security measure to only allow connections for that user from that IP adresses.

We also add those IP adresses in the IP Manager as allowed IP.

This works fine, but we now have an user with an IPv6 IP address. The IPv6 can be configured in the IP Manager, but not in the "allowed IP addresses" field under a user. We get the error message "Please enter one of more comma separated valid networkk addresses in doc-decimal, CIDR, or range notation.".

Is it possible to configure an IPv6 IP address in the "allowed IP addresses" field under an user? Or do we need to convert them to IPv4?

We use Cerberus Professional 11.3.5.0.
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