diff --git a/src/core/packetgen/connection.go b/src/core/packetgen/connection.go
index 015875e2..5a7fd6f8 100644
--- a/src/core/packetgen/connection.go
+++ b/src/core/packetgen/connection.go
@@ -23,7 +23,6 @@
 package packetgen
 
 import (
-	"context"
 	"crypto/tls"
 	"fmt"
 	"net"
@@ -42,7 +41,7 @@ type ConnectionConfig struct {
 	Proxy *utils.ProxyParams
 }
 
-func OpenConnection(ctx context.Context, c ConnectionConfig) (Connection, error) {
+func OpenConnection(c ConnectionConfig) (Connection, error) {
 	switch c.Type {
 	case "raw":
 		var cfg rawConnConfig
@@ -57,7 +56,7 @@ func OpenConnection(ctx context.Context, c ConnectionConfig) (Connection, error)
 			return nil, fmt.Errorf("error decoding connection config: %w", err)
 		}
 
-		return openNetConn(ctx, cfg, c.Proxy)
+		return openNetConn(cfg, c.Proxy)
 	default:
 		return nil, fmt.Errorf("unknown connection type: %v", c.Type)
 	}
@@ -129,7 +128,7 @@ type netConn struct {
 	target string
 }
 
-func openNetConn(ctx context.Context, c netConnConfig, proxyParams *utils.ProxyParams) (*netConn, error) {
+func openNetConn(c netConnConfig, proxyParams *utils.ProxyParams) (*netConn, error) {
 	conn, err := utils.GetProxyFunc(utils.NonNilOrDefault(proxyParams, utils.ProxyParams{}), c.Protocol)(c.Protocol, c.Address)
 
 	switch {
diff --git a/src/job/packetgen.go b/src/job/packetgen.go
index 88c67e97..a507fa38 100644
--- a/src/job/packetgen.go
+++ b/src/job/packetgen.go
@@ -49,7 +49,7 @@ func packetgenJob(ctx context.Context, args config.Args, globalConfig *GlobalCon
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
-	jobConfig, err := parsePacketgenArgs(ctx, args, globalConfig, a, logger)
+	jobConfig, err := parsePacketgenArgs(ctx, args, globalConfig, logger)
 	if err != nil {
 		return nil, fmt.Errorf("error parsing job config: %w", err)
 	}
@@ -72,7 +72,7 @@ func sendPacket(ctx context.Context, logger *zap.Logger, jobConfig *packetgenJob
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
-	conn, err := packetgen.OpenConnection(ctx, jobConfig.Connection)
+	conn, err := packetgen.OpenConnection(jobConfig.Connection)
 	if err != nil {
 		return err
 	}
@@ -131,8 +131,8 @@ func makePacketSource(ctx context.Context, logger *zap.Logger, packetTpls []*tem
 
 	packetsChan := utils.InfiniteRange(ctx, packets)
 
-	return func(ctx context.Context, logger *zap.Logger) (packetgen.Packet, error) {
-		return getNextStaticPacket(ctx, logger, packetsChan)
+	return func(ctx context.Context, _ *zap.Logger) (packetgen.Packet, error) {
+		return getNextStaticPacket(ctx, packetsChan)
 	}, nil
 }
 
@@ -158,7 +158,7 @@ func staticPackets(ctx context.Context, logger *zap.Logger, packetTpls []*templa
 	return packets, nil
 }
 
-func getNextStaticPacket(ctx context.Context, logger *zap.Logger, packetsChan chan packetgen.Packet) (packetgen.Packet, error) {
+func getNextStaticPacket(ctx context.Context, packetsChan chan packetgen.Packet) (packetgen.Packet, error) {
 	select {
 	case <-ctx.Done():
 		return packetgen.Packet{}, ctx.Err()
@@ -251,7 +251,7 @@ func parsePackets(packets []packetDescriptor, dflt map[string]any) ([]*templates
 	return packetTpls, nil
 }
 
-func parsePacketgenArgs(ctx context.Context, args config.Args, globalConfig *GlobalConfig, a *metrics.Accumulator, logger *zap.Logger) (
+func parsePacketgenArgs(ctx context.Context, args config.Args, globalConfig *GlobalConfig, logger *zap.Logger) (
 	tpl *packetgenJobConfig, err error,
 ) {
 	var jobConfig struct {
diff --git a/src/job/rawnet.go b/src/job/rawnet.go
index 2557748f..9221cbd0 100644
--- a/src/job/rawnet.go
+++ b/src/job/rawnet.go
@@ -46,7 +46,7 @@ func udpJob(ctx context.Context, args config.Args, globalConfig *GlobalConfig, a
 func rawnetJob(ctx context.Context, protocol string, args config.Args, globalConfig *GlobalConfig, a *metrics.Accumulator, logger *zap.Logger) (
 	data any, err error,
 ) {
-	packetgenArgs, err := parseRawNetJobArgs(logger, globalConfig, args, protocol)
+	packetgenArgs, err := parseRawNetJobArgs(globalConfig, args, protocol)
 	if err != nil {
 		return nil, err
 	}
@@ -54,7 +54,7 @@ func rawnetJob(ctx context.Context, protocol string, args config.Args, globalCon
 	return packetgenJob(ctx, packetgenArgs, globalConfig, a, logger)
 }
 
-func parseRawNetJobArgs(logger *zap.Logger, globalConfig *GlobalConfig, args config.Args, protocol string) (
+func parseRawNetJobArgs(globalConfig *GlobalConfig, args config.Args, protocol string) (
 	result map[string]any, err error,
 ) {
 	var jobConfig struct {
diff --git a/src/utils/countrychecker.go b/src/utils/countrychecker.go
index e1044d89..0c06a55b 100644
--- a/src/utils/countrychecker.go
+++ b/src/utils/countrychecker.go
@@ -87,7 +87,7 @@ func getCountry(logger *zap.Logger, proxyParams ProxyParams, maxFetchRetries int
 	for counter.Next() {
 		logger.Info("checking IP address,", zap.Int("iter", counter.iter))
 
-		if country, ip, err = fetchLocationInfo(logger, proxyParams); err != nil {
+		if country, ip, err = fetchLocationInfo(proxyParams); err != nil {
 			logger.Warn("error fetching location info", zap.Error(err))
 			Sleep(context.Background(), backoffController.Increment().GetTimeout())
 		} else {
@@ -98,7 +98,7 @@ func getCountry(logger *zap.Logger, proxyParams ProxyParams, maxFetchRetries int
 	return "", "", fmt.Errorf("couldn't get location info in %d tries", maxFetchRetries)
 }
 
-func fetchLocationInfo(logger *zap.Logger, proxyParams ProxyParams) (country, ip string, err error) {
+func fetchLocationInfo(proxyParams ProxyParams) (country, ip string, err error) {
 	const (
 		ipCheckerURI   = "https://api.myip.com/"
 		requestTimeout = 3 * time.Second
diff --git a/src/utils/metrics/serve.go b/src/utils/metrics/serve.go
index 5001b7e3..611731a2 100644
--- a/src/utils/metrics/serve.go
+++ b/src/utils/metrics/serve.go
@@ -26,8 +26,10 @@ func serveMetrics(ctx context.Context, logger *zap.Logger, listen string) {
 	))
 
 	server := &http.Server{
-		Addr:    listen,
-		Handler: mux,
+		Addr:              listen,
+		Handler:           mux,
+		ReadTimeout:       time.Second,
+		ReadHeaderTimeout: time.Second,
 	}
 	go func(ctx context.Context, server *http.Server) {
 		<-ctx.Done()