46

Users

User Authentication allows an administrator to grant or reject access to specific users from

specific IP addresses, based on their user credentials.

Before any traffic is allowed to pass through any policies configured with username or

groups, the user must first authenticate him/her-self. The DFL-1100 can either verify the user

against a local database or passes along the user information to an external authentication

server, which verifies the user and the given password, and transmits the result back to the

firewall. If the authentication is successful, the DFL-1100 will remember the source IP address

of this user, and any matching policies with usernames or groups configured will be allowed.

Specific policies that deal with user authentication can be defined, thus leaving policies that

not require user authentication unaffected.

The DFL-1100 supports the RADIUS (Remote Authentication Dial In User Service)

authentication protocol. This protocol is heavily used in many scenarios where user

authentication is required, either by itself or as a front-end to other authentication services.

The DFL-1100 RADIUS Support

The DFL-1100 can use RADIUS to verify users against for example Active Directory or

Unix password-file. It is possible to configure up to two servers, if the first one is down it will

try the second IP instead.

The DFL-1100 can use CHAP or PAP when communicating with the RADIUS server.

CHAP

(Challenge Handshake Authentication Protocol) does not allow a remote attacker to

extract the user password from an intercepted RADIUS packet. However, the password must

be stored in plaintext on the RADIUS server.

PAP

(Password Authentication Protocol) might

be defined as the less secure of the two. If a RADIUS packet is intercepted while being

transmitted between the firewall and the RADIUS server, the user password can be extracted,

given time. The upside to this is that the password does not have to be stored in plaintext in

the RADIUS server.

The DFL-1100 uses a shared secret when connecting to the RADIUS server. The shared

secret enables basic encryption of the user password when the RADIUS-packet is transmitted

from the firewall to the RADIUS server. The shared secret is case sensitive, can contain up to

100 characters, and must be typed exactly the same on both the firewall and the RADIUS

server.

Enable User Authentication via HTTP / HTTPS

Follow these steps to enable User

Authentication.

Step 1.

Enable the checkbox for User

Authentication.

Step 2.

Specify if HTTP and HTTPS or

only HTTPS should be used for the login.

Step 3.

Specify the idle-timeout, the time a user can be idle before being logged out by the

firewall.

Step 4.

Choose new ports for the management WebUI to listen on as the user

authentication will use the same ports as the management WebUI is using..

Click the

Apply

button below to apply the setting or click

Cancel

to discard changes.

Enable RADIUS Support

Follow these steps to enable RADIUS

support.

Step 1.

Enable the checkbox for

RADIUS Support.

Step 2.

Fill in up to two RADIUS servers.

Step 3.

Specified which mode to use, PAP or CHAP.

Step 3.

Specify the shared secret for this connection.

Click the

Apply

button below to apply the setting or click

Cancel

to discard changes.

48

Add User

Follow these steps to add a new user.

Step 1.

Click on

add

after the type of

user you would like to add, Admin or

Read-only.

Step 2.

Fill in

User name;

make sure

you are not trying to add one that

already exists.

Step 3.

Specified what groups the user

should be a member of.

Step 3.

Specify the password for the new user.

Click the

Apply

button below to apply the setting or click

Cancel

to discard changes.

Note:

The user name and password should be at least six characters long. The user

name and password can contain numbers (0-9) and upper and lower case letters (A-Z, a-

z). Special characters and spaces are not allowed.

Change User Password

To change the password of a user click on the user name and you will see the following

screen.

Follow these steps to change a users

password.

Step 1.

Click on the user you would like

to change level of.

Step 2.

Enable the

Change password

checkbox.

Step 3.

Enter the new password twice.

Click the

Apply

button below to apply

the setting or click Cancel to discard

changes.

Note

:

The password should be at least six characters long. The password can contain

numbers (0-9) and upper and lower case letters (A-Z, a-z). Special characters and spaces

are not allowed.

Delete User

To delete a user click on the user name and you will see the following screen.

Follow these steps to delete a user.

Step 1.

Click on the user you would like

to change level of.

Step 2.

Enable the

Delete user

checkbox.

Click the

Apply

button below to apply

the setting or click Cancel to discard

changes.

Note:

Deleting a user is

irreversible;

once the user is deleted, it cannot be

undeleted.

50

Schedules

It is possible to

configure a schedule

for policies to take

affect. By creating a

schedule, the DFL-

1100 is allowing the

firewall policies to be

used at those

designated times only.

Any activities outside

of the scheduled time

slot will not follow the

policies and will

therefore likely not be

permitted to pass

through the firewall.

The DFL-1100 can be

configured to have a

start time and stop

time, as well as

creating 2 different

time periods in a day.

For example, an

organization may only want the firewall to allow the internal network users to access

the Internet during work hours. Therefore, one may create a schedule to allow the

firewall to allow traffic Monday-Friday, 8AM-5PM only. During the non-work hours,

the firewall will not allow Internet access.

Add new recurring schedule

Follow these steps to add new recurring schedule.

Step 1.

Go to Firewall and Schedules and choose Add new.

Step 2.

Choose the starting and ending date and hour when the schedule should be active.

Step 3.

Use the checkboxes to set the times this schedule should be active. If all boxes

are checked the schedule will be active all the time from the starting to the ending date. If

all boxes are unchecked the schedule never will trigger.

Click the

Apply

button below to apply the change or click

Cancel

to discard changes.