DNS Configuration, Configuring DNS Settings | TANDBERG D14049.01

Systemtext Configuration

TANDBERG VIDEO COMMUNICATION SERVER ADMINISTRATOR GUIDE

DNS Configuration

Configuring DNS Settings

To configure the VCS’s DNS settings:

•System Configuration > DNS.

You will be taken to the DNS page.

•xConfiguration IP DNS

About DNS Servers

In order to use URI dialing or ENUM dialing, you must specify a DNS server to be queried for address resolution. You can specify up to 5 DNS servers. Normally only the first DNS server will be queried, but if it fails to respond, all DNS servers will be queried.

About the DNS Domain Name

The DNS Domain Name is used when attempting to resolve server addresses configured on the VCS that are not fully qualified. It applies only to the following:

•LDAP server

•NTP server

•External Manager server.

The DNS Domain Name is appended to the server address before a query to the DNS server is executed. Note however that DNS will also be queried for the server address as configured, without the DNS Domain Name appended. For this reason we recommend that all server addresses use a FQDN.

The DNS Domain name plays no part in URI dialing.

Address 1 to Address 5

Sets the IP address of a DNS server to be queried when resolving domain names.

Domain name

Specifies the name to be appended to the host name before a query to the DNS server is executed.

Save

Click here to save your changes.

Introduction

Getting

System

System

H.323 & SIP

Registration

Zones and

Call

Firewall

Bandwidth

Maintenance

Appendices

Started

Overview

Configuration

Configuration

Control

Neighbors

Processing

Traversal

Control

D 14049.01

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07.2007

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TANDBERG D14049.01 manual DNS Configuration, Configuring DNS Settings, About DNS Servers, About the DNS Domain Name

Contents

Video Communication Server Administrator Guide System Configuration Getting Started Table of Contents Call Processing Administrator PolicyUsing TANDBERG’s FindMe User Policy Fallback Alias Enum Dialing Disconnecting callsCalls to and from Unregistered Endpoints Firewall Traversal Ldap Configuration 80 MaintenanceDNS Configuration 79 Regular Expression Reference 78 Trademarks and Copyright Copyright 2007, Tandberg Disclaimer Disclaimer, Copyrights and License AgreementsPatent Information Safety Instructions Safety Instructions and ApprovalsApprovals Environmental Issues Environmental Issues Optional Features Main Product FeaturesStandard Features Introduction Getting Started Connecting the CablesTandberg VCS Powering on the VCS Initial Configuration via Serial Cable System Administrator Access Using the Web Interface Supported Browsers Using the Command Line Interface CLI Viewing the Overview ViewingText goesSystemhere OverviewUnderstanding the Overview About Admin Access settings Systemtext ConfigurationConfiguring System Settings System Administration Configuration XConfiguration Ethernet Configuring Ethernet SettingsEthernet Configuration About Ethernet Speed XConfiguration IP XConfiguration IPProtocol Configuring IP SettingsIP Configuration About IPv4 to IPv6 Gatewaying XConfiguration IP DNS DNS ConfigurationConfiguring DNS Settings About DNS Servers NTP Configuration Configuring NTP SettingsSetting the Time Zone XConfiguration NTP Address XConfiguration TimeZone Name Snmp Configuration Configuring Snmp SettingsAbout Snmp Settings XConfiguration Snmp XConfiguration ExternalManager Configuring External Manager SettingsExternal Manager Configuration About the External Manager Backing up Configuration Settings Logging Logging Overview Event Log Format Viewing the Event LogEvent Log Message Details Field Events Logged at Level DNS Events Logged at Level 1 SIP Event Data FieldsTCP UDP TLS 225 245 Request/granted registration expiry duration For Register requests the AOR for the Register requestNumber of bytes sent/received in the message Limitations of standard syslog timestamps WorkingText goeswithhereH.323 Overview Endpoint Registration Configuring H.323 XConfiguration H323 WorkingText goeswithhereSIP SIP Overview Configuring SIP Registrations, Protocols and Ports XConfiguration SIP Configuring SIP Domains XCommand DomainAdd XConfiguration SIP Domains InterworkingesText here Configuring InterworkingXConfiguration Interworking Mode Overview Endpoint Registration MCU, Gateway and Content Server RegistrationRegistrationText goes hereControl Registration Overview Preventing automatic registrations Finding a VCS with which to Register323 H323 Gatekeeper AutoDiscovery Configuring Authentication About AuthenticationAuthentication XConfiguration Authentication Configuring the Ldap Server Directory Authentication using an Ldap ServerAlias Origin Setting Securing the Ldap Connection with TLS Configuring Ldap Server settings XConfiguration Ldap XConfiguration Authentication New Authentication using a Local DatabaseConfiguring the Local Database Create Credential Registering Aliases Attempts to Register using an Existing AliasAbout Alias Registration Alias Registration Patterns and Pattern Types XConfiguration Registration RestrictionPolicyAbout Allow and Deny Lists Allow and Deny Lists XCommand AllowListAdd XConfiguration Registration AllowList Managing Entries in the Allow List Add Deny List Pattern XCommand DenyListAdd XConfiguration Registration DenyListManaging Entries in the Deny List Registration Deny List About your Video Communications Network Managing Zones, Neighbors and AlternatesExample Local Zone and Subzones Configuring the Local Zone and its SubzonesAbout the Local Zone and its Subzones Zones XConfiguration Zones Zone Adding Zones Configuring ZonesXCommand ZoneAdd Create Zone Hop count Configuring Zones All TypesMatch1 Match5 Configuring Neighbor Zones SIP port Protocol Configuring Traversal Client ZonesRetry interval SIP transport Configuring Traversal Server Zones DNS suffix Configuring Enum ZonesConfiguring DNS Zones Determines whether H.323 calls will be allowed to this zone XConfiguration Alternates About Alternates Configuring AlternatesAlternate 1 to Alternate 5 IP address Flat Dial Plan Setting up a Dial PlanAbout Dial Plans Structured Dial Plan Locating a Destination Endpoint CallText ProcessinggoeshereProcess Dialing by Address Types About Hop Counts Configuring Hop CountsXConfiguration Zones Zone 1..200 HopCount Hop Counts Administrator Policy and Authentication Administrator PolicyAbout Administrator Policy Authentication Mode On Administrator Policy Mode Enabling the use of Administrator PolicyTo enable Administrator Policy Administrator Policy Mode to take effect Configuring Administrator Policy via the Web Interface About CPL XSD files Configuring Administrator Policy via a CPL scriptUploading a CPL Script Downloading policy files UserText goesPolicyhere About User Policy Enabling User Policy on the VCS Configuring User Policy ManagerXConfiguration Policy UserPolicy Username Managing FindMe User Accounts About User AccountsCreating a New User Account Changing a User Password Viewing Existing User Account Settings Tick the box next to the account you wish to delete Deleting a User AccountTo change delete a FindMe user account Click here to delete the selected accounts About your FindMe User Account Using TANDBERG’s FindMeFindMe User Accounts Accessing the FindMe Configuration About FindMe Configuring your FindMe User Account AliasText goSearchingshere and Transforming Configuring Local Alias Transforms XConfiguration Transform Zone Searching and Transforming Default Settings Configuring Zone Searches and TransformsZone searching and alias transforming configuration Never Query a Zone Combining Match Types and PrioritiesExamples Always Query a Zone, Never Apply Transforms Changing the Prefix or Suffix Before Querying Filter Queries to a Zone Without TransformingUser@example.com User@exampleusa.com Query a Zone for Both Original and Transformed Alias Query a Zone for Two or More Transformed Aliases URITextDialinggoeshere URI Dialing Overview URI Dialing for Outgoing Calls Configuring Matches for DNS ZonesAn AlwaysMatch, or Click Create Zone Adding and Configuring DNS ZonesXCommand ZoneAdd XConfiguration Zones Zone Assigns a name to this zone Configuring DNS Servers XConfiguration IP DNS Server URI Dialing for Incoming Calls Recommended Configuration Example DNS Record ConfigurationURI Dialing and Firewall Traversal Enum Dialing Overview ENUMText goesDialinghereAbout Enum Dialing Enum Process Prerequisites Enum Dialing for Outgoing Calls Configuring Transforms for Enum Zones Configuring Matches for Enum ZonesMode of PatternMatch Pattern string Pattern type of Prefix Configuring Enum Zones For Enum zones, this will be Enum Configuring DNS Servers About DNS Domains for Enum Configuring DNS Naptr RecordsEnum Dialing for Incoming Calls CallsText gtoesandherefrom Unregistered Endpoints ConfigurationRecommended Configuration for Firewall Traversal Calls to an Unregistered Endpoint Fallback Alias XConfiguration Call Services Fallback AliasFallbackText goesAliashere Example Use of a Fallback Alias DisconnectingText goes herecalls Identifying a Particular Call Issues when Disconnecting SIP Calls Disconnecting a Call via the Web InterfaceDisconnecting a Call via the CLI Disconnect About Firewall Traversal VCS as a Firewall Traversal Client Firewall TraversalFirewall Traversal Overview VCS as a Firewall Traversal Server Firewall Traversal Protocols and Ports Stun Ports Ports for Connections out to the Public Internet323 Firewall Traversal and Authentication VCS From the Type drop-down menu, select Configuring the VCS as a Traversal ClientAdding a New Traversal Client Zone TraversalClient Create Zone Configuring a Traversal Client Zone Alternate 1 Alternate 5 Address Adding a New Traversal Server Zone Configuring the VCS as a Traversal ServerTraversalServer Create Zone Demux mode Configuring a Traversal Server ZoneTCP retry count Interval Configuring Traversal for Endpoints XConfiguration Zones LocalZone Traversal H323 323 H.460.18 call signaling port Configuring Traversal Server PortsAssent call signaling port Media demultiplexing RTP port Stun Binding Discovery Stun ServicesAbout Stun Stun Relay Configuring Stun Services XConfiguration Traversal Server About Bandwidth Control Bandwidthth ControllExample Network Deployment Subzones BandwidthControl XCommand SubZoneAddCreating a Subzone XConfiguration Zones LocalZone SubZone Configuring a SubzoneTo configure a subzone Subnet 2 How Different Bandwidth Limitations are Managed Applying Bandwidth Limitations to SubzonesTypes of Limitations Per call inter Limits the bandwidth of any individual call Creating a new pipe XCommand PipeAddAbout Pipes Creating Pipes Editing an Existing Pipe XConfiguration Bandwidth PipeEditing Pipes About Links Creating Links Default LinksXCommand LinkAdd Creating a New Link Editing Links XConfiguration Bandwidth LinkEditing Links Bandwidth Control Default LinksApplying Pipes to Links Configuring the Default Call Bandwidth and Downspeeding About the Default Call BandwidthAbout Downspeeding Bandwidth Control Examples Example Without a Firewall Enterprise VCS Subzone Configuration VCS Border Controller Subzone ConfigurationExample With a Firewall Upgrading Using SCP/PSCP MaintenanceText goes hereBacking up the Existing Configuration Before Upgrading Upgrading Software Upgrading via the Web Interface Upgrading About Adding Extra Options XConfiguration Option 1..64 Key S 0Option Keys Adding Options via the CLI Add option key Adding Options via the Web InterfaceAdd Option Click Add Option Enabling Security About SecuritySecurity About the System Snapshot PasswordsSystem Snapshot Creating a System Snapshot About Restarting XCommand BootRestarting About Shutting Down Https CommandText goes hereReference xConfigurationHttp SSH Request Total Mode On/OffAliasOrigin LDAP/Endpoint/Combined Off the call will be rejected One call Far end were registered directly to the local system Fallback Alias S 0 TCP H323 Gatekeeper CallSignalingPort NTP Option Key S 0 On the VCS will act as a DIP registrar Tration will not be permittedOff the VCS will not act as a SIP registrar 137 Snmp CommunityName S 0 RTP RtcpStun Traversal Server For any one call to or from an endpoint in the DefaultBetween two endpoints within the Default Subzone For any one call between two endpoints within Intra Mode None/Limited/Unlimited To or from an endpoint in this subzone Sets the total bandwidth limit in kbps of this subzone LimitName S 1 Assigns a name to this subzone Subnet Address S 0 RetryCount Zones LocalZone Traversal H323 ContOrder to keep the firewall’s NAT bindings open VCS will attempt to send a TCP probe to the VCS Enum 145 TCP TCP will be used Transport TCP/TLSTLS TLS will be used Zones TraversalClient Plexing mode for calls from the traversal clientOff Each call will use a separate pair of ports for Zones TraversalServer TCPProbe KeepAliveInterval Cont List, the registration will be permitted CommandText goes hereReference xCommandXCommand Description Parameters PatternType Exact/Prefix/Suffix/Regex Description Parameters XCommandList, the registration will not be permitted Status/NTP Event/AuthenticationFailureStatus/Ethernet Status/LDAP Pipe1 S 1 LinkAdd LinkDelete Locate OptionKeyAdd OptionKeyDeletePipe2 S 1 153 PerCallInter SubZoneAdd SubZoneDeletePerCallInterMode None/Limited/Unlimited To Limited TransformAdd TransformDelete ZoneAdd ZoneDelete Each transform ZoneList CommandText goes hereReference xStatus Option Key S 1 Description S 1 Server Address IPv4Addr/IPv6Addr Domain S 0 NTP External Manager Status On/Off URL S 1,255 Expression S 1,127 0..15 entries 160 161 Contact S 1,255 Path URI 1..10 S 1,255 Zones 163 164 165 166 167 Status Active/Inactive/Failed Address IPv4Addr IPv6 IPv4Status Active/Inactive/Failed Address IPv4Addr Status Active/Inactive/Failed Address IPv6Addr 169 Address Address-switch nodeCPLText Referencgoeshere Otherwise node Setup Authentication Mode OnField URI SubfieldUrl-ID 323 ID H323-ID Dialled Digits DialedDigits Unsupported CPL Elements Rule-switchCPL Script Actions Location Proxy Call Screening Based on Alias Call Screening of Authenticated UsersCPL Examples Vpengineering Call Screening Based on Domain Change of Domain Name Block Calls from Default Zone and Default Subzone Allow Calls from Locally Registered Endpoints Only Restricting Access to a Local Gateway Will match against any sequence of characters RegularText goesExpressionhere ReferenceAbout Regular Expressions For a detailed description of regular expression syntax see Verifying the SRV Record DNSText goesConfiguhereationOverview Microsoft DNS Server Bind 8 LDAPText goesConfigurationhere About the Ldap Databases Downloading the H.350 schemas Adding H.350 Objects Installing the H.350 SchemasMicrosoft Active Directory Securing with TLS OpenLDAP . Copy the OpenLDAP files to the OpenLDAP schema directory. Add the ldif file to the server using the command Add the H.350 Objects Bibliography Reference Title Link Glossary Term Definition LRQ IRQLAN NAT Firewall NAT traversal for SIP. Defined by RFC 3489 Session Initiation ProtocolProtocol used to monitor network devices Reliable communication protocol defined by RFC 791 187