Fortinet v3.0 MR7 manual User’s view of authentication, Web-based user authentication

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User’s view of authentication

Introduction

User’s view of authentication

The user sees a request for authentication when they try to access a protected resource. The way in which the request is presented to the user depends on the method of access to that resource.

VPN authentication usually controls remote access to a private network.

Web-based user authentication

Firewall policies usually control browsing access to an external network that provides connection to the Internet. In this case, the FortiGate unit requests authentication through the web browser:

The user types a user name and password and then selects Continue/Login. If the credentials are incorrect, the authentication screen is redisplayed with blank fields so that the user can try again. When the user enters valid credentials, they get access to the required resource. In some cases, if a user tries to authenticate several times without success, a message appears, such as: “Too many bad login attempts. Please try again in a few minutes.”

Note: After a defined period of user inactivity (the authentication timeout, defined by the FortiGate administrator), the user access will expire. The default is 5 minutes. To access the resource, the user will have to authenticate again.

VPN client-based authentication

VPNs provide remote clients with access to a private network for a variety of services that include web browsing, email, and file sharing. A client program such as FortiClient negotiates the connection to the VPN and manages the user authentication challenge from the FortiGate unit.

	FortiOS v3.0 MR7 User Authentication User Guide
6	01-30007-0347-20080828

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Contents E R G U I D E FortiOS v3.0 MR7 User Authentication User Guide Trademarks Contents Index Configuring authenticated accessUsers/peers and user groups Creating local users Creating peer usersAbout authentication IntroductionUser’s view of authentication Web-based user authenticationVPN client-based authentication FortiGate administrator’s view of authentication See Creating local users on See Creating peer users onAuthentication servers See Configuring user groups onUsers Public Key Infrastructure PKI authenticationPeers User groupsFirewall policies Authentication timeoutAbout this document VPN tunnelsName field, type admin FortiGate documentationTypographic conventions FortiGate Administration Guide Related documentationFortiMail documentation FortiManager documentationFortiClient documentation FortiAnalyzer documentationFortinet Knowledge Center Customer service and technical supportFortinet Tools and Documentation CD Comments on Fortinet technical documentationAuthentication servers Radius serversConfiguring the FortiGate unit to use a Radius server Radius attributes sent in Radius accounting messagePrimary Server Name/IP Primary Server SecretEdit icon Edit a Radius server configuration GroupLdap servers Ldapsearch -x objectclass= Configuring the FortiGate unit to use an Ldap server Common Name PasswordServer Port IdentifierProtocol To configure the FortiGate unit for Ldap authentication CLIEdit CertificateUsing the Query icon Ldap server Distinguished Name Query treeTACACS+ servers AsciiAuthentication Type Server KeyDirectory Service servers Groups Create NewDomain Fsae Collector IPDirectory Service server configuration Name Fsae Collector IP/Name PortCLI Example Directory Service server list Directory Service servers Users/peers and user groups Users/peersUser 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 To create a peer user for PKI authentication CLI Remove PKI peer userDirectory Service user groups User groupsFirewall user groups SSL VPN user groups Protection profilesConfiguring user groups Select Create New and enter the following informationFirewall Members Configuring Directory Service user groupsTo create a firewall user group CLI FortiGuard WebConfiguring SSL VPN user groups Available Users/Groups or Available MembersTo create a peer group CLI Configuring Peer user groupsViewing a list of user groups Group NameConfig user group delete groupname End User groups Enter the Idle Timeout value seconds Select Apply Authentication timeoutAuthentication protocols TelnetFirewall policy authentication Authentication SettingsTo configure authentication for a firewall policy Configuring authentication for a firewall policyAuthentication is an Advanced firewall option Go to Firewall PolicyFirewall policy order Firewall Policy Move ToConfiguring authenticated access to the Internet Source InterfaceZone Select Enable SSL-VPN and enter information as follows VPN authenticationConfiguring authentication of SSL VPN users Go to VPN SSLRequire Client Certificate Default RC4128Server Certificate Encryption Key AlgorithmTo configure authentication for an SSL VPN CLI Select Enable Pptp Configuring authentication of VPN peers and clientsConfiguring authentication of Pptp VPN users/user groups Select Require Client Certificate, and then select ApplyTo configure authentication for a Pptp VPN CLI Configuring authentication of L2TP VPN users/user groupsConfiguring authentication of remote IPSec VPN users 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 Configuring XAuth authentication IPSec configuration for dialup usersXAuth To configure authentication for a dialup IPSec VPN CLIRemote Gateway Authentication Method Server TypeVPN authentication Index 01-30007-0347-20080731 MS-CHAP VSA