diff --git a/internal/pkg/powerdnsutils/powerdnsutils_dnsquery.go b/internal/pkg/powerdnsutils/powerdnsutils_dnsquery.go
index 7f86ee77..259ada03 100644
--- a/internal/pkg/powerdnsutils/powerdnsutils_dnsquery.go
+++ b/internal/pkg/powerdnsutils/powerdnsutils_dnsquery.go
@@ -18,7 +18,7 @@ func GetZoneFilePerAXFR(address, zoneid string, readtimeout time.Duration) (stri
 func doZoneTransfer(zoneid string, address string, readtimeout time.Duration) (zonefile string, err error) {
 	var conn net.Conn
 
-	var channel chan *dns.Envelope
+	var channel <-chan *dns.Envelope
 
 	var d net.Dialer
 
@@ -42,7 +42,7 @@ func doZoneTransfer(zoneid string, address string, readtimeout time.Duration) (z
 	return
 }
 
-func receiveAllRecords(channel chan *dns.Envelope) ([]dns.RR, error) {
+func receiveAllRecords(channel <-chan *dns.Envelope) ([]dns.RR, error) {
 	var answerrr []dns.RR
 
 	for envmsg := range channel {
diff --git a/pkg/microservice/logger/logger.go b/pkg/microservice/logger/logger.go
index 6eb9e0f1..836a1fe1 100644
--- a/pkg/microservice/logger/logger.go
+++ b/pkg/microservice/logger/logger.go
@@ -9,14 +9,14 @@ import (
 	"github.com/rs/zerolog/log"
 )
 
-var signalchannel chan os.Signal //nolint:gochecknoglobals
+var signalChannel chan<- os.Signal //nolint:gochecknoglobals
 
 // InitGlobalLogger set global logging settings.
-func InitGlobalLogger(sigchannel chan os.Signal) {
+func InitGlobalLogger(sigchannel chan<- os.Signal) {
 	zerolog.TimeFieldFormat = time.RFC3339Nano
 	zerolog.SetGlobalLevel(zerolog.InfoLevel)
 
-	signalchannel = sigchannel
+	signalChannel = sigchannel
 }
 
 // SetDefaultLogLevel with panic, fatal, error, warn, info, debug
@@ -82,13 +82,13 @@ func ErrorLog(message string) {
 }
 
 func FatalLog(message string) {
-	signalchannel <- syscall.SIGINT
+	signalChannel <- syscall.SIGINT
 
 	log.Log().Str("level", "fatal").Msg(message)
 }
 
 func PanicLog(message string) {
-	signalchannel <- syscall.SIGINT
+	signalChannel <- syscall.SIGINT
 
 	log.Panic().Msg(message)
 }
@@ -110,13 +110,13 @@ func ErrorErrLog(err error) {
 }
 
 func FatalErrLog(err error) {
-	signalchannel <- syscall.SIGINT
+	signalChannel <- syscall.SIGINT
 
 	log.Log().Str("level", "fatal").Err(err).Msg("")
 }
 
 func PanicErrLog(err error) {
-	signalchannel <- syscall.SIGINT
+	signalChannel <- syscall.SIGINT
 
 	log.Panic().Err(err).Msg("")
 }
diff --git a/pkg/microservice/servicediscovery/servicediscovery.go b/pkg/microservice/servicediscovery/servicediscovery.go
index 02147760..7c09aaa9 100644
--- a/pkg/microservice/servicediscovery/servicediscovery.go
+++ b/pkg/microservice/servicediscovery/servicediscovery.go
@@ -272,7 +272,7 @@ func (sd *ServiceDiscovery) PutValue(key string, value []byte) error {
 	return err
 }
 
-func (sd *ServiceDiscovery) SubscribeToKey(key string, valuechan chan []byte) {
+func (sd *ServiceDiscovery) SubscribeToKey(key string, valuechan chan<- []byte) {
 	actualIndex := uint64(0)
 
 	go func() {