Dell 740N Manual

A SERVICE OF

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Network Administration 4-9

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Substitute the name of each filer in the for filer in... list in place of filer1, filer2, and

so on.

8VLQJ'16

The filer includes DNS client capabilities to query DNS servers for host-name-to-IP-

address and IP-address-to-host-name translation services. With DNS enabled, you no

longer have to update the filers

/etc/hosts

file in the root volume every time you add a

new host to the network. (If you use the default search order or put files before DNS

in the

/etc/nsswitch.conf

file, you still have to update the

/etc/hosts

file if one of its

entries changes before the filer tries to resolve host names.)

NOTE: To prevent naming inconsistencies, Dell recommends that when you enable

DNS, you use only the default /etc/hosts file in the root volume.

Enabling DNS during setup: At

setup

, if you enter

y

in response to the following

prompt,

setup

prompts you for a DNS domain name, as follows:

'R\RXZDQWWRUXQ'16UHVROYHU>Q@

y

3OHDVHHQWHU'16GRPDLQQDPH>@

After you enter a DNS domain name,

setup

prompts you for the IP addresses for up

to three DNS name servers. Based on the IP addresses you enter,

setup

generates

the /etc/resolv.conf file in the root volume. Entries in /etc/resolv.conf file consist of the

word nameserver followed by an IP address, as follows:

QDPHVHUYHULSBDGGUHVV

For details about name server query policies, see the

resolv.conf

(5) man page.

Enabling DNS without using setup: If you didnt start DNS during

setup

, you can

start DNS by performing the following steps:

1. Create a

/etc/resolv.conf

file in the root volume. The file consists of up to three

lines, each specifying a name server host in the following format:

QDPHVHUYHULSBDGGUHVV

For example:

QDPHVHUYHU

QDPHVHUYHU

QDPHVHUYHU