Enable Two-Factor Authentication Using Certificate and Authentication Profiles
The following workflow describes how to configure GlobalProtect to require users to authenticate to both a certificate profile and an authentication profile. The user must successfully authenticate using both methods in order to connect to the portal/gateway. For more details on this configuration, see Remote Access VPN with Two-Factor Authentication.
an authentication server profile.The authentication server profile determines how the firewall connects to an external authentication service and retrieves the authentication credentials for your users.If you are using LDAP to connect to Active Directory (AD), you must create a separate LDAP server profile for every AD domain.
- Select DeviceServer Profiles and a profile type (LDAP, Kerberos, RADIUS, or TACACS+).
- Add a new server profile.
- Enter a Profile Name, such as gp-user-auth.
- (LDAP Only) Select the LDAP server Type (active-directory, e-directory, sun, or other).
- Click Add in the Servers or Servers
List area (depending on the type of server profile),
and then enter the following information for connections to the
- Name of the server
- IP address of FQDN of the Server
- (RADIUS, TACACS+, and LDAP only) Specify
the following settings to enable the firewall to authenticate to
the authentication service:
- RADIUS and TACACS+—Enter the shared Secret when adding the server entry.
- LDAP—Enter the Bind DN and Password.
- (LDAP only) If you want the endpoint to use
SSL or TLS for a more secure connection with the directory server,
enable the option to Require SSL/TLS secured connection (enabled
by default). The protocol that the endpoint uses depends on the
server Port in the Server list:
- 389 (default)—TLS (specifically, the endpoint uses the StartTLS operation to upgrade the initial plaintext connection to TLS).
- Any other port—The endpoint first attempts to use TLS. If the directory server does not support TLS, the endpoint uses SSL.
- (LDAP only) For additional security, enable
the option to Verify Server Certificate for SSL sessions so
that the endpoint verifies the certificate that the directory server
presents for SSL/TLS connections. To enable verification, you also
must enable the option to Require SSL/TLS secured connection.
In order for verification to succeed, one of the following conditions
must be true:
- The certificate is in the list of device certificates: DeviceCertificate ManagementCertificatesDevice Certificates. Import the certificate into the endpoint if necessary.
- The certificate signer is in the list of trusted certificate authorities: DeviceCertificate ManagementCertificatesDefault Trusted Certificate Authorities.
- Click OK to save the server profile.
- Create an authentication profile that identifies the
service for authenticating users. You later have the option of assigning
the profile on the portal and gateways.
- Select DeviceAuthentication Profile, and then Add a new profile.
- Enter a Name for the profile.
- Select the AuthenticationType.
- Select the Server Profile you created in step 1.
- (LDAP Only) Enter sAMAccountName as the Login Attribute.
- Click OK to save the authentication profile.
- Create a client certificate profile that the portal uses
to authenticate the client certificates that come from user endpoints.When you configure two-factor authentication to use client certificates, the external authentication service uses the username value to authenticate the user, if specified, in the client certificate. This ensures that the user who is logging is in is actually the user to whom the certificate was issued.
- Select DeviceCertificate ManagementCertificate Profile, and then Add a new certificate profile.
- Enter a Name for the profile.
- Select one of the following Username Field values:
- If you intend for the client certificate to authenticate individual users, select the certificate field that identifies the user.
- If you are deploying the client certificate from the portal, select None.
- If you are setting up a certificate profile for use with a pre-logon connect method, select None.
- Add the CA Certificates that
you want to assign to the profile, and then configure the following settings:
- Select the CA certificate, either a trusted root CA certificate or the CA certificate from a SCEP server. If necessary, import the certificate.
- (Optional) Enter the Default OCSP URL.
- (Optional) Select a certificate for OCSP Verify Certificate.
- (Optional) Select the following options to
specify when to block the user’s requested session:
- Status of certificate is unknown.
- GlobalProtect component does not retrieve certificate status within the number of seconds in Certificate Status Timeout.
- Serial number attribute in the subject of a client certificate does not match the host ID that the GlobalProtect app reports for the endpoint.
- Certificates have expired.
- Click OK.
- (Optional) Issue
client certificates to GlobalProtect clients and endpoints.To deploy client certificates transparently, configure your portal to distribute a shared client certificate to your endpoints or configure the portal to use SCEP to request and deploy unique client certificates for each user.
- Use your enterprise PKI or a public CA to issue a client certificate to each GlobalProtect user.
- For the pre-logon connect methods, install certificates in the personal certificate store on the endpoint.
- Save the GlobalProtect configuration.Click Commit.
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