rrl

package
v1.8.2 Latest Latest
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 Go to latest Published: Dec 2, 2020 License: Apache-2.0 Imports: 16 Imported by: 0

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Constants

This section is empty.

Variables

View Source 
var (
	RequestsExceeded = promauto.NewCounterVec(prometheus.CounterOpts{
		Namespace: plugin.Namespace,
		Subsystem: "rrl",
		Name:      "requests_exceeded_total",
		Help:      "Counter of requests exceeding QPS limit.",
	}, []string{"client_ip"})

	ResponsesExceeded = promauto.NewCounterVec(prometheus.CounterOpts{
		Namespace: plugin.Namespace,
		Subsystem: "rrl",
		Name:      "responses_exceeded_total",
		Help:      "Counter of responses exceeding QPS limit.",
	}, []string{"client_ip"})
)

Variables declared for monitoring.

Functions

This section is empty.

Types

type RRL 

type RRL struct {
	Next  plugin.Handler
	Zones []string
	// contains filtered or unexported fields
}

RRL performs response rate limiting

func (*RRL) Name 

func (rrl *RRL) Name() string

Name implements the Handler interface.

func (*RRL) ServeDNS 

func (rrl *RRL) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error)

ServeDNS implements the Handler interface.

type ResponseAccount 

type ResponseAccount struct {
	// contains filtered or unexported fields
}

ResponseAccount holds accounting for a category of response Next response is allowed if current time >= allowTime

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