• SonicOS 8
• About SonicOS
  • Working with SonicOS
  • SonicOS Workflow
  • How to Use the SonicOS Administration Guides
  • Guide Conventions
• About User Management
  • Using Local Users and Groups for Authentication
    • About User Databases
    • About User Groups
  • Using RADIUS for Authentication
  • Using LDAP/Active Directory/eDirectory Authentication
    • LDAP Terms
    • LDAP Directory Services Supported in SonicOS
    • Integrating LDAP into the SonicOS Network Security Appliance
      • Preparing Your LDAP Server for Integration
      • Configuring the CA on the Active Directory Server
      • Exporting the CA Certificate from the Active Directory Server
      • Importing the CA Certificate into SonicOS
  • Using RADIUS
  • Using TACACS+
  • Using Single Sign-On
    • What is Single Sign-On?
    • Benefits of SonicWall SSO
    • Platforms and Supported Standards
    • How Does Single Sign-On Work?
      • SonicWall SSO Authentication Using the SSO Agent
      • SonicWall SSO Authentication Using the Terminal Services Agent
      • SonicWall SSO Authentication Using Browser NTLM Authentication
    • How Does SSO Agent Work?
      • Logging
    • How Does Terminal Services Agent Work?
      • Multiple TSA Support
      • Encryption of TSA Messages and Use of Session IDs
      • Connections to Local Subnets
      • Non-Domain User Traffic from the Terminal Server
    • How Does Browser NTLM Authentication Work?
      • NTLM Authentication of Domain Users
      • NTLM Authentication of Non-Domain Users
      • Credentials for NTLM Authentication in the Browser
    • How Does RADIUS Accounting for Single-Sign-On Work?
      • RADIUS Accounting Messages
      • SonicWall Compatibility with Third-Party Network Appliances
      • Proxy Forwarding
      • Non-Domain Users
      • IPv6 Considerations
      • RADIUS Accounting Server Port
    • Installing the Single Sign-On Agent and/or Terminal Services Agent
      • Installing the SonicWall SSO Agent
      • Installing the SonicWall Terminal Services Agent
        • Accessing the SonicWall Terminal Services Agent
        • Creating a SonicWall TSA Troubleshooting Report
    • Single Sign-On Advanced Features
      • Viewing SSO Mouseover Statistics
      • Using the Single Sign-On Statistics in the TSR
      • Examining the Agent
      • Remedies
    • Configuring Access Rules
      • Automatically Generated Rules for SonicWall SSO
      • Accommodating Mac and Linux Users
        • Using SSO on Mac and Linux With Samba
        • Using SSO on Mac and Linux Without Samba
      • Allowing ICMP Pings from a Terminal Server
    • Managing SonicOS with HTTP Login from a Terminal Server
    • Viewing and Managing SSO User Sessions
      • Logging Out SSO Users
      • Configuring Additional SSO User Settings
      • Viewing SSO and LDAP Messages with Packet Monitor
      • Capturing SSO Messages
      • Capturing LDAP Over TLS Messages
    • Multiple Administrator Support
      • Preempting Administrators
      • Logging in with Administrator Rights
        • Disabling the User Login Status Popup
      • Configuring Multiple Administrator Support
        • Configuring Additional Administrator User Profiles
        • Configuring Administrators Locally when Using LDAP or RADIUS
        • Verifying Multiple Administrators Support Configuration
        • Viewing Multiple Administrator Related Log Messages
• Configuring Users Status
  • Displaying Unauthenticated Users
  • Displaying the User Count
  • Refreshing the Users List
  • Logging Out Users
    • Logging Out a Single User
    • Logging Out Multiple Users
• Configuring User Settings
  • User Login Settings
    • Setting the Authentication Method for Login
    • Configuring RADIUS Authentication
      • Configuring RADIUS Settings
      • Configuring RADIUS Users Settings
      • Testing RADIUS Settings
    • Configuring LDAP
      • Configuring LDAP Setting
      • Configuring Referrals
      • LDAP User Settings
      • Enabling LDAP Relay
      • Testing LDAP Settings
    • Configuring TACACS+
      • Configuring TACAS+ Settings
      • Configuring TACACS+ User Settings
      • Testing TACACS+ Settings
    • Requiring User Names be Treated as Case-Sensitive
    • Preventing Users From Logging in from More than One Location
    • Forcing Users to Log In Immediately After Changing Their Passwords
    • Displaying User Login Information Since the Last Login
  • Setting the Single-Sign-On Methods
    • Configuring SSO
      • SSO Agents
      • Users
      • Enforcement
      • Terminal Services
      • NTLM
      • RADIUS Accounting
      • 3rd Party API
      • Capture Client
      • Test
  • One-Time Password Settings
  • Configuring the User Web Login Settings
    • Setting the Timeout for the Authentication Page
    • Setting How the Browser is Redirected
    • Managing Redirections to the Login Page
    • Redirecting Unauthenticated Users
    • Authenticating user's multiple IP addresses
  • Adding URLs to Authentication Bypass
  • User Session Settings
    • User Session Settings for SSO-Authenticated Users
    • User Session Settings for Web Login
  • Accounting
    • Configuring RADIUS Accounting
      • Sending RADIUS Accounting Information to Servers
      • Configuring User Accounting
      • Testing RADIUS Accounting
      • Editing RADIUS Servers
      • Deleting RADIUS Servers
    • Configuring TACACS+ Accounting
      • Configuring User Accounting
      • Testing TACACS Accounting
      • Editing TACACS Servers
      • Deleting TACACS Servers
  • [[[Missing Linked File System.LinkedTitle]]]
    • • Post-Login Acceptable Use Policy Example Template
      • Post-Login Acceptable Use Policy Preview Message
• Configuring Local Users and Groups
  • About Authentication and Passwords
    • Using Two-Factor Authentication
    • Enforcing First Login Password Change
  • Configuring Local Users
    • Quota Control for all Users
    • Viewing Local Users
    • Adding Local Users
      • Configuring Local Users Settings
      • Configuring Local Users Groups
      • Configuring Local Users VPN Access
      • Configuring Local Users User Quota
    • Editing Local Users
  • Configuring Local Groups
    • Adding Local Groups
      • Configuring Local Groups Settings
      • Configuring Local Group Settings Members
      • Configuring Local Group Settings VPN Access
      • Configuring Local Group Settings Administration
    • Editing Local Groups
  • Settings
• Configuring Guest Services
  • Adding Guest Profiles
  • Editing Guest Profiles
  • Deleting Guest Profiles
• Configuring Guest Accounts
  • Adding Guest Accounts
  • Editing Guest Accounts
  • Deleting Guest Accounts
    • Deleting a Guest Account
    • Deleting Multiple Guest Accounts
    • Deleting All Guest Accounts
• Managing Guest Status
  • Logging Out Guests
  • Logging Out All Guests
• SonicWall Support
  • About This Document

Preventing Users From Logging in from More than One Location

To prevent users from logging in from more than one location at a time

1. Navigate to Device > Users > Settings > Authentication.
2. Select Enforce login uniqueness. This option is not selected by default.
3. Click Accept.