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This configuration documentation is for functionality provided by res_resolver_unbound.

resolver_unbound.conf

general

General options for res_resolver_unbound

Configuration Option Reference

Option Name

Type

Default Value

Regular Expression

Description

hosts

String

system

false

Full path to an optional hosts file

resolv

String

system

false

Full path to an optional resolv.conf file

nameserver

Custom

 

false

Nameserver to use for queries

debug

Unsigned Integer

0

false

Unbound debug level

ta_file

String

 

false

Trust anchor file

Configuration Option Descriptions

hosts

Hosts specified in a hosts file will be resolved within the resolver itself. If a value of system is provided the system-specific file will be used.

resolv

The resolv.conf file specifies the nameservers to contact when resolving queries. If a value of system is provided the system-specific file will be used. If provided alongside explicit nameservers the nameservers contained within the resolv.conf file will be used after all others.

nameserver

An explicit nameserver can be specified which is used for resolving queries. If multiple nameserver lines are specified the first will be the primary with failover occurring, in order, to the other nameservers as backups. If provided alongside a resolv.conf file the nameservers explicitly specified will be used before all others.

debug

The debugging level for the unbound resolver. While there is no explicit range generally the higher the number the more debug is output.

ta_file

Full path to a file with DS and DNSKEY records in zone file format. This file is provided to unbound and is used as a source for trust anchors.

Import Version

This documentation was imported from Asterisk Version GIT-15-b172474

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