typo fixes (#3169)

* spelling fixes

* its/it's

Makefile.fuzz

@@ -9,7 +9,7 @@
 # 	make -f Makefile.fuzz forward
 #
 # Each plugin that wants to join the fuzzing fray only needs to add a fuzz.go that calls
-# the plugins's ServeDNS and used the plugin/pkg/fuzz for the Do function.
+# the plugin's ServeDNS and used the plugin/pkg/fuzz for the Do function.
 #
 # Installing go-fuzz is very tricky because it does not support Go modules, see the `Makefile`
 # for the current trickery. The following may do the trick:

core/dnsserver/server.go

@@ -259,7 +259,7 @@ func (s *Server) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
 			// The type is DS, keep the handler, but keep on searching as maybe we are serving
 			// the parent as well and the DS should be routed to it - this will probably *misroute* DS
 			// queries to a possibly grand parent, but there is no way for us to know at this point
-			// if there is an actually delegation from grandparent -> parent -> zone.
+			// if there is an actual delegation from grandparent -> parent -> zone.
 			// In all fairness: direct DS queries should not be needed.
 			dshandler = h
 		}

notes/coredns-003.md

@@ -28,7 +28,7 @@ Refused queries are properly logged and exported if metrics are enabled.
 * *auto*: numerous bugfixes.
 * *file*: fix data race in reload process and also reload a zone when it is `mv`ed (newly created) into place.
   Also rewrite the zone lookup algorithm and be more standards compliant, esp. in the area of DNSSEC, wildcards and empty-non-terminals; handle secure delegations.
-* *kubernetes*: vender the k8s dependency and updates to be compatible with Kubernetes 1.4 and 1.5.
+* *kubernetes*: vendor the k8s dependency and updates to be compatible with Kubernetes 1.4 and 1.5.
    Multiple cleanups and fixes. Kubernetes services can now be resolved.
 
 # Contributors

notes/coredns-1.2.6.md

@@ -27,7 +27,7 @@ kernels.
 
 *  [*cache*](/plugins/cache) got some minor optimizations.
 
-*  [*errors*](/plugins/errors) (and *log*) gotten a new option (`consolidate`) to suppress loging.
+*  [*errors*](/plugins/errors) (and *log*) gotten a new option (`consolidate`) to suppress logging.
 
 *  [*hosts*](/plugins/hosts) will now read the `hosts` file without holding a write lock.
 

notes/coredns-1.3.1.md

@@ -26,7 +26,7 @@ Mostly documentation updates in various plugins. Plus a small fix where we stop
 
  *  [*log*](/plugins/log) now allows multiple names to be specified.
 
- *  [*import*](/plugins/import) was added to give it a README.md to make it's documentation more
+ *  [*import*](/plugins/import) was added to give it a README.md to make its documentation more
     discoverable.
 
  *  [*kubernetes*](/plugins/kubernetes) `TTL` is also applied to negative responses (NXDOMAIN, etc).

notes/coredns-1.6.2.md

@@ -12,7 +12,7 @@ The CoreDNS team has released
 
 This is a bug fix release, but it also features a new plugin called [*azure*](/plugins/azure).
 
-It's compiled with Go 1.12.8 that incorperates fixes for HTTP/2 that may impact you if you use
+It's compiled with Go 1.12.8 that incorporates fixes for HTTP/2 that may impact you if you use
 [DoH](https://tools.ietf.org/html/rfc8484).
 
 # Plugins

plugin/auto/zone.go

@@ -7,7 +7,7 @@ import (
 	"github.com/coredns/coredns/plugin/file"
 )
 
-// Zones maps zone names to a *Zone. This keep track of what we zones we have loaded at
+// Zones maps zone names to a *Zone. This keeps track of what zones we have loaded at
 // any one time.
 type Zones struct {
 	Z     map[string]*file.Zone // A map mapping zone (origin) to the Zone's data.
@@ -56,7 +56,7 @@ func (z *Zones) Add(zo *file.Zone, name string) {
 	z.Unlock()
 }
 
-// Remove removes the zone named name from z. It also stop the zone's reload goroutine.
+// Remove removes the zone named name from z. It also stops the zone's reload goroutine.
 func (z *Zones) Remove(name string) {
 	z.Lock()
 

plugin/autopath/autopath.go

@@ -3,7 +3,7 @@ Package autopath implements autopathing. This is a hack; it shortcuts the
 client's search path resolution by performing these lookups on the server...
 
 The server has a copy (via AutoPathFunc) of the client's search path and on
-receiving a query it first establish if the suffix matches the FIRST configured
+receiving a query it first establishes if the suffix matches the FIRST configured
 element. If no match can be found the query will be forwarded up the plugin
 chain without interference (iff 'fallthrough' has been set).
 

plugin/azure/azure.go

@@ -206,7 +206,7 @@ func (h *Azure) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
 		return plugin.NextOrFailure(h.Name(), h.Next, ctx, w, r)
 	}
 
-	zones, ok := h.zones[zone] // ok true if we are authoritive for the zone.
+	zones, ok := h.zones[zone] // ok true if we are authoritative for the zone.
 	if !ok || zones == nil {
 		return dns.RcodeServerFailure, nil
 	}

plugin/chaos/README.md

@@ -7,7 +7,7 @@
 ## Description
 
 This is useful for retrieving version or author information from the server by querying a TXT record
-for a special domainname in the CH class.
+for a special domain name in the CH class.
 
 ## Syntax
 

plugin/file/ent_test.go

@@ -55,7 +55,6 @@ func TestLookupEnt(t *testing.T) {
 	}
 }
 
-// fdjfdjkf
 const dbMiekENTNL = `; File written on Sat Apr  2 16:43:11 2016
 ; dnssec_signzone version 9.10.3-P4-Ubuntu
 miek.nl.		1800	IN SOA	linode.atoom.net. miek.miek.nl. (

plugin/file/lookup.go

@@ -69,7 +69,7 @@ func (z *Zone) Lookup(ctx context.Context, state request.Request, qname string)
 	//
 	// Main for-loop handles delegation and finding or not finding the qname.
 	// If found we check if it is a CNAME/DNAME and do CNAME processing
-	// We also check if we have type and do a nodata resposne.
+	// We also check if we have type and do a nodata response.
 	//
 	// If not found, we check the potential wildcard, and use that for further processing.
 	// If not found and no wildcard we will process this as an NXDOMAIN response.
@@ -169,7 +169,7 @@ func (z *Zone) Lookup(ctx context.Context, state request.Request, qname string)
 			return nil, ret, nil, NoData
 		}
 
-		// Additional section processing for MX, SRV. Check response and see if any of the names are in baliwick -
+		// Additional section processing for MX, SRV. Check response and see if any of the names are in bailiwick -
 		// if so add IP addresses to the additional section.
 		additional := z.additionalProcessing(rrs, do)
 

plugin/health/README.md

@@ -44,7 +44,7 @@ net {
 }
 ~~~
 
-Doing this is supported but both endponts ":8080" and ":8081" will export the exact same health.
+Doing this is supported but both endpoints ":8080" and ":8081" will export the exact same health.
 
 ## Metrics
 

plugin/kubernetes/external.go

@@ -21,7 +21,7 @@ func (k *Kubernetes) External(state request.Request) ([]msg.Service, int) {
 	if last < 0 {
 		return nil, dns.RcodeServerFailure
 	}
-	// We dealing with a fairly normal domain name here, but; we still need to have the service
+	// We are dealing with a fairly normal domain name here, but we still need to have the service
 	// and the namespace:
 	// service.namespace.<base>
 	//
@@ -86,7 +86,7 @@ func (k *Kubernetes) External(state request.Request) ([]msg.Service, int) {
 // ExternalAddress returns the external service address(es) for the CoreDNS service.
 func (k *Kubernetes) ExternalAddress(state request.Request) []dns.RR {
 	// This is probably wrong, because of all the fallback behavior of k.nsAddr, i.e. can get
-	// an address that isn't reacheable from outside the cluster.
+	// an address that isn't reachable from outside the cluster.
 	rrs := []dns.RR{k.nsAddr()}
 	return rrs
 }

plugin/kubernetes/kubernetes.go

@@ -179,7 +179,7 @@ func (k *Kubernetes) getClientConfig() (*rest.Config, error) {
 	}
 
 	// Connect to API from out of cluster
-	// Only the first one is used. We will deprecated multiple endpoints later.
+	// Only the first one is used. We will deprecate multiple endpoints later.
 	clusterinfo.Server = k.APIServerList[0]
 
 	if len(k.APICertAuth) > 0 {

plugin/kubernetes/object/endpoint.go

@@ -62,7 +62,7 @@ func ToEndpoints(obj interface{}) interface{} {
 			Addresses: make([]EndpointAddress, len(eps.Addresses)),
 		}
 		if len(eps.Ports) == 0 {
-			// Add sentinal if there are no ports.
+			// Add sentinel if there are no ports.
 			sub.Ports = []EndpointPort{{Port: -1}}
 		} else {
 			sub.Ports = make([]EndpointPort, len(eps.Ports))

plugin/kubernetes/setup.go

@@ -184,7 +184,7 @@ func ParseStanza(c *caddy.Controller) (*Kubernetes, error) {
 		case "endpoint":
 			args := c.RemainingArgs()
 			if len(args) > 0 {
-				// Multiple endoints are deprecated but still could be specified,
+				// Multiple endpoints are deprecated but still could be specified,
 				// only the first one be used, though
 				k8s.APIServerList = args
 				if len(args) > 1 {

plugin/metadata/README.md

@@ -8,7 +8,7 @@
 
 By enabling *metadata* any plugin that implements [metadata.Provider
 interface](https://godoc.org/github.com/coredns/coredns/plugin/metadata#Provider) will be called for
-each DNS query, at beginning of the process for that query, in order to add it's own meta data to
+each DNS query, at beginning of the process for that query, in order to add its own meta data to
 context.
 
 The meta data collected will be available for all plugins, via the Context parameter provided in the

plugin/normalize.go

@@ -12,7 +12,7 @@ import (
 
 // See core/dnsserver/address.go - we should unify these two impls.
 
-// Zones respresents a lists of zone names.
+// Zones represents a lists of zone names.
 type Zones []string
 
 // Matches checks if qname is a subdomain of any of the zones in z.  The match
@@ -65,7 +65,7 @@ func (h Host) Normalize() string {
 	s := string(h)
 	_, s = parse.Transport(s)
 
-	// The error can be ignore here, because this function is called after the corefile has already been vetted.
+	// The error can be ignored here, because this function is called after the corefile has already been vetted.
 	host, _, _, _ := SplitHostPort(s)
 	return Name(host).Normalize()
 }
@@ -76,7 +76,7 @@ func (h Host) Normalize() string {
 func SplitHostPort(s string) (host, port string, ipnet *net.IPNet, err error) {
 	// If there is: :[0-9]+ on the end we assume this is the port. This works for (ascii) domain
 	// names and our reverse syntax, which always needs a /mask *before* the port.
-	// So from the back, find first colon, and then check if its a number.
+	// So from the back, find first colon, and then check if it's a number.
 	host = s
 
 	colon := strings.LastIndex(s, ":")

plugin/pkg/response/typify.go

@@ -15,7 +15,7 @@ const (
 	NoError Type = iota
 	// NameError is a NXDOMAIN in header, SOA in auth.
 	NameError
-	// ServerError is a set of errors we want to cache, for now it containers SERVFAIL and NOTIMPL.
+	// ServerError is a set of errors we want to cache, for now it contains SERVFAIL and NOTIMPL.
 	ServerError
 	// NoData indicates name found, but not the type: NOERROR in header, SOA in auth.
 	NoData

plugin/pkg/response/typify_test.go

@@ -49,7 +49,7 @@ func TestTypifyRRSIG(t *testing.T) {
 }
 
 func TestTypifyImpossible(t *testing.T) {
-	// create impossible message that denies it's own existence
+	// create impossible message that denies its own existence
 	m := new(dns.Msg)
 	m.SetQuestion("bar.www.example.org.", dns.TypeAAAA)
 	m.Rcode = dns.RcodeNameError                                                      // name does not exist

plugin/plugin.go

@@ -84,7 +84,7 @@ func NextOrFailure(name string, next Handler, ctx context.Context, w dns.Respons
 }
 
 // ClientWrite returns true if the response has been written to the client.
-// Each plugin to adhire to this protocol.
+// Each plugin to adhere to this protocol.
 func ClientWrite(rcode int) bool {
 	switch rcode {
 	case dns.RcodeServerFailure:

plugin/pprof/pprof.go

-// Package pprof implement a debug endpoint for getting profiles using the
+// Package pprof implements a debug endpoint for getting profiles using the
 // go pprof tooling.
 package pprof
 

plugin/ready/README.md

@@ -13,7 +13,7 @@ will not be queried again.
 
 Each Server Block that enables the *ready* plugin will have the plugins *in that server block*
 report readiness into the /ready endpoint that runs on the same port. This also means that the
-*same* plugin with different configurations (in potentialy *different* Server Blocks) will have
+*same* plugin with different configurations (in potentially *different* Server Blocks) will have
 their readiness reported as the union of their respective readinesses.
 
 ## Syntax

plugin/reload/README.md

@@ -85,7 +85,7 @@ is already listening on that port. The process reloads and performs the followin
 4. fail loading the new Corefile, abort and keep using the old process
 
 After the aborted attempt to reload we are left with the old processes running, but the listener is
-closed in step 1; so the health endpoint is broken. The same can hopen in the prometheus metrics plugin.
+closed in step 1; so the health endpoint is broken. The same can happen in the prometheus metrics plugin.
 
 In general be careful with assigning new port and expecting reload to work fully.
 

plugin/template/template_test.go

@@ -421,7 +421,7 @@ func TestHandler(t *testing.T) {
 	}
 }
 
-// TestMultiSection verfies that a corefile with multiple but different template sections works
+// TestMultiSection verifies that a corefile with multiple but different template sections works
 func TestMultiSection(t *testing.T) {
 	ctx := context.TODO()
 

test/ds_file_test.go

@@ -8,7 +8,7 @@ import (
 	"github.com/miekg/dns"
 )
 
-// Using miek.nl here because this is the easiest zone to get access to and it's masters
+// Using miek.nl here because this is the easiest zone to get access to and its masters
 // run both NSD and BIND9, making checks like "what should we actually return" super easy.
 var dsTestCases = []mtest.Case{
 	{

test/secondary_test.go

@@ -71,7 +71,7 @@ func TestSecondaryZoneTransfer(t *testing.T) {
 	m.SetQuestion("example.org.", dns.TypeSOA)
 
 	var r *dns.Msg
-	// This is now async; we we need to wait for it to be transferred.
+	// This is now async; we need to wait for it to be transferred.
 	for i := 0; i < 10; i++ {
 		r, err = dns.Exchange(m, udp)
 		if len(r.Answer) != 0 {