Multi-factor authentication allows you to
protect company assets by using multiple factors to verify the identity
of users before allowing them to access network resources.
To
enable multi-factor authentication (MFA) between the firewall and
the Okta identity management service:
Log in to the Okta Admin Portal to create
your user accounts, define your Okta MFA policy, and obtain the
token information required to configure MFA with Okta on the firewall.
Create your Okta Admin user account.
Submit your email address and name, then
click Get Started.
Click the link in the confirmation email and use the
included temporary password to log in to the Okta Admin Portal.
Create a new password that includes at least 8 characters,
one lowercase letter, one uppercase letter, a number, and does not
include any part of your username.
Select a password reminder question and enter the
answer.
Select a security image, then Create My Account.
Configure your Okta service.
If you log in and are not redirected to the Okta
Admin Portal, select Admin at the upper right.
From the Okta Dashboard, log in with your
Okta Admin credentials, then select ApplicationsApplications.
Select Add Application.
Search for Okta Verify.
Select Add, then Done.
Create one or more user groups to categorize your users
(for example, by device, by policy, or by department) and assign
the Okta Verify application.
Select DirectoryGroups.
Click Add Group.
Enter a group Name and optionally
a Group Description, then Add
Group.
The
default group Everyone includes all users configured for
your organization during the first step in Configure
Okta.
Select the group you created, then select Manage
Apps.
Assign the Okta Verify application
you added in Step 2.
After the application has been Assigned,
click Done.
Repeat this process for all groups that will use the
Okta Verify application for MFA.
Add users and assign them to a group.
From the Okta Dashboard, select DirectoryPeopleAdd Person.
Enter the user’s First Name, Last
Name, and Username. The username
must match the Primary email, which populates automatically,
and the username entered on the firewall. You can optionally enter
an alternate email address for the user as the Secondary
Email.
Enter the name of the group or Groups to
associate with this user. When you start typing, the group name
populates automatically.
Check Send user activation email now,
then Save to add a single user or Save
and Add Another to continue adding users.
Assign a test policy to users.
Select SecurityAuthenticationSign On.
There is a Default Policy with a Default
Rule that does not prompt users to log in with MFA.
Enter the Rule Name and check Prompt
for Factor to enforce the MFA prompt, and select the
type of prompt (Per Device, Every Time,
or Per Session), then Create Rule.
Record the Okta authentication token information in a
safe place because it is only displayed once.
Select SecurityAPITokens.
Select Create Token.
Enter a name for the token, then Create
Token.
Copy the Token Value.
You can click the Copy to clipboard button
to copy the Token Value to your clipboard.
In the URL for the Okta Admin Dashboard, copy the
portion of the URL after https:// up to /admin to
use as the API host.
Omit the domain okta.com from
this URL to use as the Organization.
For example, in the example Okta Admin Dashboard URL above, https://paloaltonetworks-doc-admin.okta.com/admin/dashboard:
The API hostname is paloaltonetworks-doc-admin.okta.com.
The Organization is paloaltonetworks-doc-admin.
Export all certificates in the certificate chain using
Base-64 encoding:
Depending on your browser, use one of the
following methods to export all certificates in the chain.
Chrome—Press F12,
then select SecurityView
CertificateDetailsCopy
to File.
Enable User-ID on the
source zone to require identified users to respond to the challenge
using your MFA vendor.
Create an Authentication Enforcement Object to use the
MFA vendor and create an Authentication policy rule (see Configure Authentication Policy,
Steps 4 and 5).
Commit your changes.
Verify MFA with Okta
Verify your users received their enrollment
emails, have activated their accounts, and have downloaded the Okta
Verify app on their devices.
Go to a website that will prompt the response page challenge.
If you are using a self-signed certificate instead
of a PKI-assigned certificate from your organization, a security
warning displays that users must click through to access the challenge.
Log in to the response page using your Okta credentials.
Confirm the device receives the challenge push notification.
Confirm users can successfully access the page after
authenticating the challenge by accepting the push notification
on their devices.