Struct trust_dns_resolver::config::ResolverOpts
source · pub struct ResolverOpts {
pub ndots: usize,
pub timeout: Duration,
pub attempts: usize,
pub validate: bool,
pub ip_strategy: LookupIpStrategy,
pub cache_size: usize,
pub use_hosts_file: bool,
pub positive_min_ttl: Option<Duration>,
pub negative_min_ttl: Option<Duration>,
pub positive_max_ttl: Option<Duration>,
pub negative_max_ttl: Option<Duration>,
/* private fields */
}
Expand description
Configuration for the Resolver
Fields
ndots: usize
Sets the number of dots that must appear (unless it’s a final dot representing the root)
that must appear before a query is assumted to include the TLD. The default is one, which
means that www
would never be assumed to be a TLD, and would always be appended to either
the search
timeout: Duration
Specify the timeout for a request. Defaults to 5 seconds
attempts: usize
Number of attempts before giving up. Defaults to 2
validate: bool
Use DNSSec to validate the request
ip_strategy: LookupIpStrategy
The ip_strategy for the Resolver to use when lookup Ipv4 or Ipv6 addresses
cache_size: usize
Cache size is in number of records (some records can be large)
use_hosts_file: bool
Check /ect/hosts file before dns requery (only works for unix like OS)
positive_min_ttl: Option<Duration>
Optional minimum TTL for positive responses.
If this is set, any positive responses with a TTL lower than this value will have a TTL of
positive_min_ttl
instead. Otherwise, this will default to 0 seconds.
negative_min_ttl: Option<Duration>
Optional minimum TTL for negative (NXDOMAIN
) responses.
If this is set, any positive responses with a TTL lower than this value will have a TTL of
negative_min_ttl
instead. Otherwise, this will default to 0 seconds.
positive_max_ttl: Option<Duration>
Optional maximum TTL for positive responses.
If this is set, any positive responses with a TTL higher than this value will have a TTL of
positive_max_ttl
instead. Otherwise, this will default to MAX_TTL
seconds.
negative_max_ttl: Option<Duration>
Optional maximum TTL for negative (NXDOMAIN
) responses.
If this is set, any positive responses with a TTL higher than this value will have a TTL of
negative_max_ttl
instead. Otherwise, this will default to MAX_TTL
seconds.
Trait Implementations
sourceimpl Clone for ResolverOpts
impl Clone for ResolverOpts
sourcefn clone(&self) -> ResolverOpts
fn clone(&self) -> ResolverOpts
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl Debug for ResolverOpts
impl Debug for ResolverOpts
sourceimpl Default for ResolverOpts
impl Default for ResolverOpts
sourcefn default() -> Self
fn default() -> Self
Default values for the Reolver configuration.
This follows the resolv.conf defaults as defined in the Linux man pages