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Commands to Configure DNS
To configure the Domain Names Systems (DNS) on the system, use the following commands:
ip name-server
Configures one or more name server (DNS) IP addresses. You can configure up to six IP addresses.
Syntax
ip name-server [vrf vrf-name] ip-address [ip-address2] [ip-address3] [ip-
address4] [ip-address5] [ip-address6]
To undo the name server ip address configuration for VRF, use the no ip name-server [vrf
vrf-name] ip-address command.
Parameters
vrf vrf-name (Optional) Enter the key word vrf and then the name of the VRF to configure the
name server IP addresses for that VRF.
ip-address [ ip-
address2 ] [ ip-
address3 ] [ ip-
address4 ] [ ip-
address5
] [ ip-
address6
]
Enter the IP address of the name server in dotted decimal format.
NOTE: Use the additional ip-address parameters (ip-address2 to ip-
address6) in a sequential order to specify up to a maximum of six IP
addresses per VRF.
Defaults None
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
EMC Networking OS Command Line Reference Guide.
The following is a list of the Dell EMC Networking OS version history for this command.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.4.(0.0) Introduced on the S-Series and Z-Series.
Usage
Information
Use this command to associate the system with one or more DNS servers.
In a dual stack setup, the system sends both A (request for IPv4 — RFC 1035) and AAAA (request for
IPv6 — RFC 3596) record requests to a DNS server even if only the ip name-server command is
configured.
Example
• DellEMC(conf)#ip name-server vrf jay 2.2.2.2
• DellEMC(conf)#ip name-server vrf jay 2.2.2.2 3.3.3.3 4.4.4.4
5.5.5.5 6.6.6.6 7.7.7.7
ip domain-name
Configures the default domain corresponding to a specific VRF. This domain is appended to the in complete DNS requests
corresponding to the specified VRF.
Syntax
ip domain-name [vrf vrf-name] name
Dynamic Host Configuration Protocol (DHCP) 559