dns

Syntax

dns { disable; maximum-message-length number; traceoptions { flag { all <extensive>; }}}

Hierarchy Level

[edit security alg]

Release Information

Statement introduced in Release 8.5 of Junos OS.

Description

Specify the Domain Name Service (DNS) Application Layer Gateway (ALG) on the device.

Options

disable—Disable the DNS ALG by default, the DNS ALG is enabled.

maximum-message-length—A limit imposed on the size of individual DNS messages (see related section).

traceoptions—Configure DNS ALG tracing options.

flag—Trace operation to perform. To specify more than one trace operation, include multiple flag statements.

all—Trace all events.

extensive—(Optional) Display extensive amount of data.

Usage Guidelines

For configuration instructions and examples, see the Junos OS Security Configuration Guide.

Required Privilege Level

security—To view this statement in the configuration.

security-control—To add this statement to the configuration.