• Secure Mobile Access 10.2
• Introduction
  • About This Guide
    • Guide Conventions
  • New Features
  • Deprecated Features
    • Deprecate Legacy User Interface (UI)
  • Overview of SMA Components
    • SMA Software Components
    • SMA Hardware Components
    • Client Versions Released with 10.2
      • NetExtender Client Versions
      • SMA Connect Agent Versions
    • SMA 500v Virtual Appliances
    • Increased Client Connections on SMA 210/410
    • Capture ATP Integration Overview
    • Always on VPN
      • Secure Network Detection
      • AOV Controls
      • AOV Logs
      • Anti-Tampering Protection
    • Encryption Overview
    • SSL for Virtual Private Networking (VPN)
    • SSL Handshake Procedure
    • IPv6 Support Overview
    • Portals Overview
      • Custom Portals
    • File Shares
    • Domains Overview
    • Application Offloading and HTTP(S) Bookmarks Overview
      • Benefits of HTTP(S) Bookmarks
      • Benefits of Application Offloading
      • Software Prerequisites
      • Supported Application Deployment Considerations
    • Cross Domain Single Sign-On
    • ActiveSync Authentication
      • ActiveSync Log Entries
      • Configuring a Portal to Check Email from an Android Device
    • Network Resources Overview
      • HTTP (Web) and Secure HTTPS (Web)
      • Telnet
      • SSHv2
      • FTP
      • File Shares (CIFS)
      • Remote Desktop Protocols
      • Virtual Network Computing
        • RDP 7 Support
      • Application Protocols Using RDP
      • Microsoft Outlook Web Access
      • Windows SharePoint Services
      • Lotus Domino Web Access
      • Citrix Portal
    • SNMP Overview
    • DNS Overview
    • Network Routes Overview
    • NetExtender Overview
      • What is NetExtender?
      • Benefits of NetExtender
      • NetExtender Concepts
      • NetExtender and IPv6
      • Two-Factor Authentication Overview
        • Benefits of Two-Factor Authentication
        • How Does Two-Factor Authentication Work?
        • Supported Two-Factor Authentication Providers
        • Two-Factor Authentication Login Processes
      • One Time Password Overview
        • What is One Time Password?
        • Benefits of One Time Passwords
        • How Does the One Time Password Feature Work?
        • Configuring One Time Passwords for SMS-Capable Phones
        • Verifying Administrator One Time Password Configuration
      • End Point Control Overview
        • What is End Point Control?
        • Benefits of End Point Control
        • How Does End Point Control Work?
        • Configuring End Point Control
      • Web Application Firewall Overview
        • What is Web Application Firewall?
        • Benefits of Web Application Firewall
        • How Does Web Application Firewall Work?
        • How are Signatures Used to Prevent Attacks?
        • How is Cross-Site Request Forgery Prevented?
        • How is Information Disclosure Prevented?
        • How are Broken Authentication Attacks Prevented?
        • How are Insecure Storage and Communications Prevented?
        • How is Access to Restricted URLs Prevented?
        • How are Slowloris Attacks Prevented?
        • What Type of PCI Compliance Reports Are Available?
        • How Does Cookie Tampering Protection Work?
        • How Does Application Profiling Work?
        • How Does Rate Limiting for Custom Rules Work?
      • Restful API - Phase 1 Support
      • Restful API - Phase 2 Support
  • Navigating the Management Interface
    • Browser Requirements
      • Browser Requirements for the Administrator
      • Browser Requirements for the End User
    • Management Interface Introduction
      • Understanding the Management Interface
        • Dashboard
        • Navigation Bar
        • Status Bar
        • Accepting Changes
        • Navigating Tables
        • Restarting
        • Common Icons in the Management Interface
        • Tool tip in the Management Interface
        • Getting Help
        • Logging Out
  • Deployment Guidelines
    • Support for Numbers of User Connections
    • Resource Type Support
    • Integration with other SonicWall Products
    • Typical Deployment
    • Two-armed Deployment
    • Virtual Platforms
• Secure Mobile Access Dashboard
  • System Report
• Configuring Secure Mobile Access
  • System Configuration
    • System > Status
      • System Status Overview
        • System Messages
        • System Information
        • Latest Alerts
        • Licenses & Registration
      • Registering SMA Appliance with System Status
        • Before You Register
        • Registering with MySonicWall
      • Configuring Network Interfaces
    • System > Licenses
      • System > Licenses Overview
        • Security Services Summary
        • Manage Security Services Online
        • Using a Spike License
        • Manual Upgrade
      • Registering the SMA Appliance and Managing Security/Support Services with System > Licenses
      • Activating or Upgrading Licenses
    • System > Time
      • System > Time Overview
        • System Time
        • NTP Settings
      • Setting the Time
      • Enabling Network Time Protocol
    • System > Settings
      • System > Settings Overview
        • Firmware Management
      • Managing Configuration Files
        • Encrypting the Configuration File
        • Importing a Configuration File
        • Importing Partial Configurations
        • Exporting a Backup Configuration File
        • Emailing Configuration Settings
        • Enabling Scheduled Backups
        • Emailing New Settings
      • Managing Firmware
        • Setting Firmware Notification
        • Creating a Backup
        • Downloading Firmware
        • Booting a Firmware Image
        • Uploading New Firmware
    • System > Administration
      • System > Administration Overview
        • Login Security
        • HTTP DOS Settings
        • Content Security Policy Setting
        • Global SSL/TLS Settings
        • Transport Layer Security (TLS) 1.3 Support
        • Capacity Matrix
        • Web Management Settings
        • SNMP Settings
      • Configuring Login Security
        • Enabling Lockout for Source IP Address
      • Configuring HTTP DOS Settings
      • Blocking Source IP Address for Continuous Login Failures
      • Configuring Web Management Settings
      • Configuring SNMP Settings
      • Enabling GMS Settings
      • About External FTP/TFTP Server
      • Enabling Cloud Management and Reporting
    • System > Certificates
      • System > Certificates Overview
        • Server Certificates
        • Additional CA Certificates
        • SAML Certificates
      • Certificate Management
      • Generating a Certificate Signing Request
      • Generating a Certificate Using Let's Encrypt
      • Viewing and Editing Certificate Information
      • Importing a Certificate
      • Adding Additional CA Certificates
    • System > Monitoring
      • Monitoring Graphs
      • Setting the Monitoring Period
      • Refreshing the Monitors
    • System > Diagnostics
      • Downloading & Generating the Tech Support Report
      • Using iPerf Performance Diagnostics for NetExtender
      • Performing Diagnostic Tests
    • System > Restart
      • System > Restart Overview
      • Restarting the SMA Appliance
    • System > About
  • Network Configuration
    • Network > Interfaces
      • Network > Interfaces Overview
      • Configuring Network Interfaces
    • Network > DNS
      • Network > DNS Overview
        • DNS Settings
        • WINS Settings
      • Configuring Hostname Settings
      • Configuring DNS Settings
      • Customize DNS Settings for the SMA Appliance Using Azure/AWS Platform
      • Configuring WINS Settings
    • Network > Routes
      • Network > Routes Overview
        • Default Route
        • Static Routes
      • Configuring a Default Route for the SMA Appliance
      • Customize a Default gateway for the SMA Appliance Using Azure/AWS Platform
      • Configuring Static Routes for the Appliance
    • Network > Host Resolution
      • Network > Host Resolution Overview
        • Host Name Settings
      • Configuring Host Resolution
    • Network > Network Objects
      • Network > Network Objects Overview
      • Adding Network Objects
      • Editing Network Objects
      • Defining an Object Address
  • Portals Configuration
    • Portals > Portals
      • About Portal Home Page
      • Adding Portals
      • Configuring General Portal Settings
        • Enforcing Login Uniqueness
        • Enforcing Client Source Uniqueness
      • Configuring Login Schedules
      • Configuring the Home Page
        • Enabling NetExtender to Launch Automatically in the User Portal
      • Configuring Virtual Host Settings
      • Adding a Custom Portal Logo
    • Portals > Application Offloading
      • Configuring with the Offloading Portal Wizard
      • General Server Settings
      • Load Balancing Server Settings
      • URL-based Aliasing Server Settings
      • Remote Desktop Web Access Server Settings
      • Configuring the Security Settings
      • Configuring the Miscellaneous Settings
      • Using Offloaded Applications
        • Configuring Application Offloading with SharePoint 2013
        • Microsoft Outlook Anywhere with Autodiscover Overview
    • Portals > Domains
      • Viewing the Domains Table
      • Removing a Domain
      • Adding or Editing a Domain
      • Secure Hosts for Secure Network Detection
      • Adding or Editing a Domain with Local User Authentication
      • Adding or Editing a Domain with Active Directory Authentication
      • Adding or Editing a Domain with RADIUS Authentication
        • Portal Name Added to Client Identifier for RADIUS
      • Adding or Editing a Domain with Digital Certificates
      • Adding a Domain with SAML 2.0 Authentication
      • Configuring SAML Authentication
        • Configuring SAML Authentication with Azure
        • Configuring SAML Authentication with OneLogin
        • Configuring SAML Authentication with G Suite
        • Configuring SAML Authentication with Office 365
        • Configuring SAML Authentication with Okta
      • Configuring Two-Factor Authentication
      • DUO Security Authentication Support for NetExtender and Mobile Connect Clients
    • Portals > Load Balancing
      • Configuration Scenarios
      • Load Balancing Settings
      • Configuring a Load Balancing Group
        • Adding a New Load Balancing Group
        • Configuring Probe Settings
        • Adding New Members to a Load Balancing Group
    • Portals > URL Based Aliasing
      • Adding a URL-based Aliasing Group
        • Adding Members
        • Deleting a Group
        • Deleting a Member
      • Default Site Settings
• Configuring Services and Clients
  • Services Configuration
    • Services > Settings
      • HTTP/HTTPS Service Settings
      • NetExtender/Mobile Connect Service Settings
      • Mobile Connect Default Policy Settings
      • Global Portal Settings
      • One Time Password Settings
      • Policy Match Log Settings
      • FTP Settings
      • File Share Settings
    • Services > Bookmarks
      • Terminal Services (RDP-HTML5 and Native)
      • Terminal Services (RDP-HTML5)
      • Virtual Network Computing (VNC-HTML5)
      • Citrix Portal (Citrix)
      • Web (HTTP)
      • Secure Web (HTTPS)
      • External Web Site
      • Mobile Connect
      • File Shares (CIFS)
      • File Transfer Protocol (FTP) and SSH File Transfer Protocol (SFTP)
      • Telnet HTML5 Settings
      • Secure Shell Version 2 (SSHv2)
    • Services > Policies
      • Adding a Policy
      • Editing a Policy
      • Deleting a Policy
      • Adding an SMS Template
  • Device Management Configuration
    • Device Management > Devices
      • Adding a Device
      • Importing a Device
      • Exporting Selected Devices
      • Deleting Selected Devices
      • Approving Selected Devices
      • Rejecting Selected Devices
    • Device Management > Settings
      • Register Settings
      • ActiveSync Provision Settings
      • Notification Settings
    • Device Management > Policies
  • Clients Configuration
    • Clients > Status
    • Clients > Settings
      • Configuring the Global NetExtender/Mobile Connect IP Address Range
      • Configuring Global NetExtender/Mobile Connect Settings
      • Configuring Internal Proxy Settings
      • Configuring Post-Connection Scripts
    • Clients > Routes
      • Clients > Routes Overview
      • Adding Clients Routes
    • Clients > Advanced Settings
      • NetExtender/Mobile Connect Traffic Log
      • Post Connection Script Files
    • Clients > Log
  • End Point Control
    • End Point Control > Status
    • Configuring End Point Control Settings
    • Configuring EPC Device Profiles
    • Users > Local Groups > Edit EPC Settings
    • Users > Local Users > Edit EPC Settings
  • Web Application Firewall Configuration
    • Viewing and Updating Web Application Firewall Status
      • Viewing Status and Synchronizing Signatures
      • Downloading a PCI Compliance Report
    • Configuring Web Application Firewall Settings
      • Enabling Web Application Firewall and Configuring General Settings
      • Configuring Global Exclusions
      • Configuring Intrusion Prevention Error Page Settings
      • Configuring Cross-Site Request Forgery Protection Settings
      • Configuring Cookie Tampering Protection Settings
      • Configuring Web Site Cloaking
      • Configuring Information Disclosure Protection
      • Configuring Session Management Settings
    • Configuring Web Application Firewall Signature Actions
      • Enabling Performance Optimization
      • Configuring Signature Based Custom Handling and Exclusions
      • Reverting a Signature to Global Settings
      • Removing a Host from a Per-Signature Exclusion
    • Configuring Custom Rules and Application Profiling
      • Configuring Rule Chains
      • Adding or Editing a Rule Chain
      • Cloning a Rule Chain
      • Deleting a Rule Chain
      • Correcting Rule Chains
    • Using Web Application Firewall Monitoring
      • Monitoring on the Local page
        • Using the Control Buttons
        • Monitoring Web Server Status
        • Monitoring Detected and Prevented Threats
        • Viewing Threats in List Format
      • Monitoring on the Global Page
    • Licensing Web Application Firewall
  • Capture ATP
    • Capture ATP > Settings
      • General Settings
      • File Type Settings
      • File Size Settings
      • Custom Blocking Behavior
    • Capture ATP > Report
      • Files Scanned in the Last 30 Days
      • Viewing Files Scanned
      • Filtering Files
      • Adding a New Filter
      • Uploading a File
    • Capture ATP > Licensing
      • SonicWall Capture ATP Service
      • License Status
  • Geo IP and Botnet Filter
    • Status
      • General Status
      • Botnet Status
    • Settings
      • General Settings
      • Remediation Settings
    • Policies
    • Licensing
  • High Availability Configuration
    • High Availability Overview
      • Supported Platforms
    • Preparing for High Availability
    • Configuring Settings
      • Enabling Interface Monitoring
      • Configuring Network Monitoring Addresses
      • Configuring Management Settings for Idle Unit
      • Synchronizing Firmware
      • Synchronizing Settings
    • Synchronizing Licenses
    • High Availability FAQS
• Configuring Users & Logs
  • Users Configuration
    • Users > Status
      • Access Policies Concepts
      • Access Policy Hierarchy
    • Users > Local Users
      • Local Users
        • Removing a User
        • Adding a Local User
        • Importing Local Users
        • Exporting Local Users
      • Editing User Settings
        • Modifying General User Settings
        • Modifying Group Settings
        • Modifying Portal Settings
        • Modifying Clients Settings
        • Modifying NetExtender Client Routes
      • Adding User Policies
        • Adding a Policy for an IP Address
        • Adding a Policy for an IP Network
        • Adding a Policy for All Addresses
        • Setting File Share Access Policies
        • Adding a Policy for a File Share
        • Adding a Policy for a URL Object
        • Policy URL Object Field Elements
        • Adding a Policy for All IPv6 Addresses
        • Adding a Policy for an IPv6 Address
        • Adding a Policy for an IPv6 Network
      • Adding or Editing User Bookmarks
        • Terminal Services (RDP) or Terminal Services (RDP - HTML5)
        • Virtual Network Computing (VNC)
        • Citrix Portal (Citrix)
        • Web (HTTP)
        • Secure Web (HTTPS)
        • External Web Site
        • Mobile Connect
        • File Shares (CIFS)
        • File Transfer Protocol (FTP)
        • SSH File Transfer Protocol (SFTP)
        • Telnet
        • Secure Shell Version 2 (SSHv2)
        • HTML5 SSH Key File Authentication Support
      • Creating a Citrix Bookmark for a Local User
      • Creating Bookmarks with Custom SSO Credentials
      • Configuring Login Policies
      • Denying Mobile App Binding when Login is Attempted from any External Network
      • Reusing Mobile App Binding Text Code
      • Flexibility in Choosing Two-factor Authentication Method for NetExtender Login
      • Configuring End Point Control for Users
      • Configuring Capture ATP
        • General Settings
        • File Type Settings
        • File Size Settings
        • Custom Blocking Behavior
    • Users > Local Groups
      • Deleting a Group
      • Adding a New Group
      • Editing Group Settings
        • Editing General Local Group Settings
        • Enabling Routes for Groups
          • Enabling Group Client Routes
          • Enabling Tunnel All Mode for Local Groups
        • Adding Group Policies
        • Editing a Policy for a File Share
        • Configuring Group Bookmarks
          • Terminal Services (RDP), Terminal Services (RDP-HTML5) or Terminal Services (RDP-Native)
          • Virtual Network Computing (VNC)
          • Citrix Portal (Citrix)
          • Web (HTTP)
          • Secure Web (HTTPS)
          • External Web Site
          • Mobile Connect
          • File Shares (CIFS)
          • File Transfer Protocol (FTP) and SSH File Transfer Protocol (SFTP)
          • Secure Shell Version 2 (SSHv2) HTML5 Settings
          • SSHv2 Common Settings
        • Configuring Group End Point Control
      • LDAP Attribute Information
        • Example of LDAP Users and Attributes
        • Sample LDAP Attributes
        • Querying an LDAP Server
      • Group Configuration for Active Directory and RADIUS Domains
        • Bookmark Support for External (Non-Local) Users
        • Adding a RADIUS Group
        • Adding an Active Directory Group
      • Creating a Citrix Bookmark for a Local Group
    • Global Configuration
      • Edit Global Policies
      • Edit a Policy for a File Share
      • Edit Global Bookmarks
      • Edit EPC Settings
  • Log Configuration
    • Log > View
    • Log > View Overview
    • Log > Settings Overview
      • Log and Alert Levels
      • Syslog Settings
      • Event Logging and Alerts
      • Configuring Log Settings
      • Configuring the Mail Server
    • Log > Categories
    • Log > Analyzer Overview
• Using Virtual Office
  • Virtual Office Configuration
    • Virtual Office
      • Virtual Office Overview
      • Using the Virtual Office
    • SMA Connect Agent
      • Supported Operating Systems
      • Downloading and Installation
      • Setting up the SMA Connect Agent
        • Proxy Configuration
        • Logs
        • Browser Warning
        • End Point Control (EPC)
        • PDA (Personal Device Authorization)
        • SonicWall Application
• Appendices
  • Using Online Help
  • Configuring an SMA Appliance with a Third-party Gateway
    • Cisco PIX Configuration for SMA Appliance Deployment
      • Before you Begin
        • Management Considerations for the Cisco Pix
      • Method One – SMA Appliance on LAN Interface
      • Method Two – SMA Appliance on DMZ Interface
    • Linksys WRT54GS
    • WatchGuard Firebox X Edge
    • NetGear FVS318
    • NetGear Wireless Router MR814 SSL Configuration
    • Check Point AIR 55
      • Setting up an SMA Appliance with Check Point AIR 55
      • Static Route
      • ARP
    • Adding the Allowed Host Option in the Content Security Policy Header
  • Printer Redirection
    • Enable the Redirection Printers
    • Time-Zone Redirection
  • Use Cases
    • Importing CA Certificates on Windows
      • Importing a goDaddy Certificate on Windows
      • Importing a Server Certificate on Windows
    • Creating Unique Access Policies for AD Groups
      • Creating the Active Directory Domain
      • Adding a Global Deny All Policy
      • Creating Local Groups
      • Adding the SSHv2 PERMIT Policy
      • Adding the OWA PERMIT Policies
      • Verifying the Access Policy Configuration
  • Secure Mobile Access Security Best Practices
    • Multi-Factor Authentication
      • Enable One-Time Password (OTP) Using Phone or Email
        • Configuring One-Time Passwords for Email
        • Configuring One-Time Passwords for SMS
      • Enabling One-Time Password
      • 2FA and OTP User Experience
      • User Backup Codes
    • Additional Configuration Recommendations for Security Best Practices
      • Prohibit Saving Username and Password
      • Hide Domain List on Portal Login Page
      • Enable HTTP Strict Transport Security (HSTS) for SMA
      • Enforce Login Uniqueness
      • Enforce Client Source Uniqueness
      • Enable “Login Schedule”
      • Enable “Logout Schedule”
      • Enforce Password Complexity
      • Enable Client Certificate Enforcement (Advanced Security Feature)
      • Restrict Request Headers
      • Use a Public Certificate
      • Allow Touch ID and Face ID on Mac, Apple IOS, and Android Devices
      • Disconnection on Inactivity Timeout
      • Disable the Default Admin Account
      • Allow Policy Match Logging
      • Setup Connection Policies
      • Device Registration
      • End Point Control
      • GEO IP Fencing
      • Capture ATP for the SMA 100 Series
    • Security Enhancements
      • New Firmware Availability Notifications
      • OpenSSL Version Upgrade
      • Additional Security Enhancements
        • Enforce WAF to Protect the SMA100
        • Warning on Security Configurations
          • Warning for 2FA on Domains
          • Warning for Password Expiration of Local Domains
          • Warning for WAF on Web Application Portals
        • Disable User Data for Deploying SMA 500v in Azure or AWS
    • General Considerations
  • NetExtender Troubleshooting
  • Frequently Asked Questions
    • Hardware FAQ
    • Digital Certificates and Certificate Authorities FAQ
    • NetExtender FAQ
    • General FAQ
  • Using the Command Line Interface
    • SafeMode
  • Using SMS Email Formats
  • Support Information
    • GNU General Public License (GPL) Source Code
    • Limited Hardware Warranty
    • End User License Agreement
  • Glossary
• SonicWall Support
  • About This Document

DNS Overview

The administrator can configure DNS on the SMA appliance to enable it to resolve host names with IP addresses. The Secure Mobile Access web-based management interface allows the administrator to configure a hostname, DNS server addresses, and WINS server addresses.