Fortinet v3.0 MR7 manual Public Key Infrastructure PKI authentication, Peers, Users, User groups

Page 9

 

 

 

Introduction

FortiGate administrator’s view of authentication

Public Key Infrastructure (PKI) authentication

A Public Key Infrastructure (PKI) is a comprehensive system of policies, processes, and technologies working together to enable users of the Internet to exchange information in a secure and confidential manner. PKIs are based on the use of cryptography - the scrambling of information by a mathematical formula and a virtual key so that it can only be decoded by an authorized party using a related key. The public and private cryptographic key pair is obtained and shared through a trusted authority. The public key infrastructure enables the creation of a digital certificate that can identify an individual or organization, and directory services that can store and also revoke the certificates.

Public Key Infrastructure (PKI) authentication utilizes a certificate authentication library that takes a list of ‘peers’, ‘peer’ groups, and/or user groups and returns authentication ‘successful’ or ‘denied’ notifications. Users only need a valid certificate for successful authentication - no username or password are necessary.

Peers

A peer is a user that is a digital certificate holder used in PKI authentication. To use PKI authentication, you must define peers to include in the authentication user group. See “Users/peers” on page 33.

Users

Although it is simpler to define passwords locally, when there are many users the administrative effort to maintain the database is considerable. Users cannot change their own passwords on the FortiGate unit. When a remote or external remote authentication server is part of an enterprise network authentication system, users can change their own passwords. See “Users/peers” on page 33.

Note: Frequent changing of passwords is a good security practice.

User groups

A user group can contain individual users/peers and authentication servers. A user/peer or authentication server can belong to more than one group.

Authentication is group-based. Firewall policies can allow multiple groups access, but authentication for a VPN allows access to only one group. These considerations affect how you define the groups for your organization. Usually you need a user group for each VPN. For firewall policies, you can create user groups that reflect how you manage network privileges in your organization. For example, you might create a user group for each department or create user groups based on functions such as customer support or account management.

You select a protection profile for each user group. Protection profiles determine the level of web filtering, antivirus protection, and spam filtering applied to traffic controlled by the firewall policy to which members of this user group authenticate. For more information about protection profiles, see the FortiGate Administration Guide.

FortiOS v3.0 MR7 User Authentication User Guide

 

01-30007-0347-20080828

9

Page 8 Page 10
Image 9
Page 8 Page 10
Contents E R G U I D E Trademarks FortiOS v3.0 MR7 User Authentication User GuideContents Users/peers and user groups Configuring authenticated accessIndex Creating local users Creating peer usersIntroduction About authenticationUser’s view of authentication Web-based user authenticationVPN client-based authentication See Creating local users on See Creating peer users on FortiGate administrator’s view of authenticationSee Configuring user groups on Authentication serversPeers Public Key Infrastructure PKI authenticationUsers User groupsAbout this document Authentication timeoutFirewall policies VPN tunnelsName field, type admin FortiGate documentationTypographic conventions Related documentation FortiGate Administration GuideFortiClient documentation FortiManager documentationFortiMail documentation FortiAnalyzer documentationFortinet Tools and Documentation CD Customer service and technical supportFortinet Knowledge Center Comments on Fortinet technical documentationRadius servers Authentication serversRadius attributes sent in Radius accounting message Configuring the FortiGate unit to use a Radius serverPrimary Server Secret Primary Server Name/IPGroup Edit icon Edit a Radius server configurationLdap servers Ldapsearch -x objectclass= Configuring the FortiGate unit to use an Ldap server Server Port PasswordCommon Name IdentifierEdit To configure the FortiGate unit for Ldap authentication CLIProtocol CertificateLdap server Distinguished Name Query tree Using the Query iconAscii TACACS+ serversServer Key Authentication TypeDirectory Service servers Domain Create NewGroups Fsae Collector IPFsae Collector IP/Name Port Directory Service server configuration NameCLI Example Directory Service server list Directory Service servers Users/peers Users/peers and user groupsUser type Authentication Creating local usersTo create a local user web-based manager Go to User Local To view a list of all local users, go to User Local Delete icon Edit iconTo create a local user CLI To remove a user from the FortiGate unit configuration CLI Creating peer usersDelete icon Authenticating peer user To view a list of PKI peer users, go to User PKISubject Remove PKI peer user To create a peer user for PKI authentication CLIDirectory Service user groups User groupsFirewall user groups Protection profiles SSL VPN user groupsConfiguring user groups Select Create New and enter the following informationFirewall To create a firewall user group CLI Configuring Directory Service user groupsMembers FortiGuard WebAvailable Users/Groups or Available Members Configuring SSL VPN user groupsViewing a list of user groups Configuring Peer user groupsTo create a peer group CLI Group NameConfig user group delete groupname End User groups Authentication protocols Authentication timeoutEnter the Idle Timeout value seconds Select Apply TelnetAuthentication Settings Firewall policy authenticationAuthentication is an Advanced firewall option Configuring authentication for a firewall policyTo configure authentication for a firewall policy Go to Firewall PolicyFirewall Policy Move To Firewall policy orderConfiguring authenticated access to the Internet Source InterfaceZone Configuring authentication of SSL VPN users VPN authenticationSelect Enable SSL-VPN and enter information as follows Go to VPN SSLServer Certificate Default RC4128Require Client Certificate Encryption Key AlgorithmTo configure authentication for an SSL VPN CLI Configuring authentication of Pptp VPN users/user groups Configuring authentication of VPN peers and clientsSelect Enable Pptp Select Require Client Certificate, and then select ApplyConfiguring authentication of remote IPSec VPN users Configuring authentication of L2TP VPN users/user groupsTo configure authentication for a Pptp VPN CLI To configure authentication for an L2TP VPN CLITo configure user group authentication for dialup IPSec CLI Only users with passwords on the FortiGate unitRemote Gateway IPSec configuration for dialup users Configuring XAuth authenticationRemote Gateway Authentication Method To configure authentication for a dialup IPSec VPN CLIXAuth Server TypeVPN authentication Index 01-30007-0347-20080731 MS-CHAP VSA
Top Page Image Contents