Networking::DNSResolver::set_randomize_query_character_case_state

Introduced : BIG-IP_v12.0.0
Sets whether to randomly vary the case of letters in domain names queried for a set of DNS resolvers. If disabled, the resolver will not vary the case of letters in domain names queried. The DNS standards require that nameservers treat query names case-insensitively. Domain names with the same letters, regardless of the case, should resolve to the same IP address. On the other hand, for the response, nameservers should preserve the original case that appeared in the request. This technique will help to reduce the risk of cache poisioning. The default value is enabled.

Prototype

 set_randomize_query_character_case_state(
    in String [] resolvers,
    in EnabledState [] states
);

Parameters

Parameter Type Description
resolvers String [] The names of the DNS resolvers to modify.
states EnabledState [] The state indicating whether to randomly vary the case of letters in domain names queried for each specified DNS resolver.

Return Type

Type Description
void  

Exceptions

Exception Description
Common::AccessDenied Raised if the client credentials are not valid.
Common::InvalidArgument Raised if one of the arguments is invalid.
Common::OperationFailed Raised if an operation error occurs.

See Also

iControl ::
iControl :: Networking :: DNSResolver

Warning

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Sample Code


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