diff --git a/.github/workflows/cd/cloudretro.io/coordinator.env b/.github/workflows/cd/cloudretro.io/coordinator.env
index 6ac274e9..bfee32c2 100644
--- a/.github/workflows/cd/cloudretro.io/coordinator.env
+++ b/.github/workflows/cd/cloudretro.io/coordinator.env
@@ -3,4 +3,3 @@ CLOUD_GAME_COORDINATOR_ANALYTICS_INJECT=true
 CLOUD_GAME_COORDINATOR_SERVER_ADDRESS=
 CLOUD_GAME_COORDINATOR_SERVER_HTTPS=true
 CLOUD_GAME_COORDINATOR_SERVER_TLS_DOMAIN=cloudretro.io
-CLOUD_GAME_ENVIRONMENT=prod
diff --git a/configs/config.yaml b/configs/config.yaml
index 4512a203..7e3a9569 100644
--- a/configs/config.yaml
+++ b/configs/config.yaml
@@ -2,13 +2,7 @@
 # Application configuration file
 #
 
-# application environment (dev, staging, prod)
-# deprecated
-environment: dev
-
 coordinator:
-  # address if the server want to connect directly to debug
-  debugHost:
   # games library
   library:
     # some directory which is gonna be the root folder for the library
diff --git a/pkg/config/coordinator/config.go b/pkg/config/coordinator/config.go
index 89076169..0fab5ae1 100644
--- a/pkg/config/coordinator/config.go
+++ b/pkg/config/coordinator/config.go
@@ -12,7 +12,6 @@ import (
 
 type Config struct {
 	Coordinator struct {
-		DebugHost  string
 		Library    games.Config
 		Monitoring monitoring.Config
 		Origin     struct {
@@ -22,10 +21,9 @@ type Config struct {
 		Server    shared.Server
 		Analytics Analytics
 	}
-	Emulator    emulator.Emulator
-	Environment shared.Environment
-	Recording   shared.Recording
-	Webrtc      webrtcConfig.Webrtc
+	Emulator  emulator.Emulator
+	Recording shared.Recording
+	Webrtc    webrtcConfig.Webrtc
 }
 
 // Analytics is optional Google Analytics
@@ -46,7 +44,6 @@ func NewConfig() (conf Config) {
 }
 
 func (c *Config) ParseFlags() {
-	c.Environment.WithFlags()
 	c.Coordinator.Server.WithFlags()
 	flag.IntVar(&c.Coordinator.Monitoring.Port, "monitoring.port", c.Coordinator.Monitoring.Port, "Monitoring server port")
 	flag.StringVarP(&configPath, "conf", "c", configPath, "Set custom configuration file path")
diff --git a/pkg/config/shared/config.go b/pkg/config/shared/config.go
index d6d0c95b..c5731fb3 100644
--- a/pkg/config/shared/config.go
+++ b/pkg/config/shared/config.go
@@ -1,11 +1,6 @@
 package shared
 
-import (
-	"github.com/giongto35/cloud-game/v2/pkg/environment"
-	flag "github.com/spf13/pflag"
-)
-
-type Environment environment.Env
+import flag "github.com/spf13/pflag"
 
 type Server struct {
 	Address string
@@ -39,11 +34,3 @@ func (s *Server) GetAddr() string {
 	}
 	return s.Address
 }
-
-func (env *Environment) Get() environment.Env {
-	return (environment.Env)(*env)
-}
-
-func (env *Environment) WithFlags() {
-	flag.StringVar((*string)(env), "env", string(*env), "Specify environment type: [dev, staging, prod]")
-}
diff --git a/pkg/config/worker/config.go b/pkg/config/worker/config.go
index 99c41752..b3131da2 100644
--- a/pkg/config/worker/config.go
+++ b/pkg/config/worker/config.go
@@ -13,18 +13,17 @@ import (
 	"github.com/giongto35/cloud-game/v2/pkg/config/shared"
 	"github.com/giongto35/cloud-game/v2/pkg/config/storage"
 	webrtcConfig "github.com/giongto35/cloud-game/v2/pkg/config/webrtc"
-	"github.com/giongto35/cloud-game/v2/pkg/environment"
+	"github.com/giongto35/cloud-game/v2/pkg/os"
 	flag "github.com/spf13/pflag"
 )
 
 type Config struct {
-	Encoder     encoder.Encoder
-	Emulator    emulator.Emulator
-	Environment shared.Environment
-	Recording   shared.Recording
-	Storage     storage.Storage
-	Worker      Worker
-	Webrtc      webrtcConfig.Webrtc
+	Encoder   encoder.Encoder
+	Emulator  emulator.Emulator
+	Recording shared.Recording
+	Storage   storage.Storage
+	Worker    Worker
+	Webrtc    webrtcConfig.Webrtc
 }
 
 type Worker struct {
@@ -54,7 +53,6 @@ func NewConfig() (conf Config) {
 // Define own flags with default value set to the current config param.
 // Don't forget to call flag.Parse().
 func (c *Config) ParseFlags() {
-	c.Environment.WithFlags()
 	c.Worker.Server.WithFlags()
 	flag.IntVar(&c.Worker.Monitoring.Port, "monitoring.port", c.Worker.Monitoring.Port, "Monitoring server port")
 	flag.StringVar(&c.Worker.Network.CoordinatorAddress, "coordinatorhost", c.Worker.Network.CoordinatorAddress, "Worker URL to connect")
@@ -70,7 +68,7 @@ func (c *Config) expandSpecialTags() {
 		if *dir == "" || !strings.Contains(*dir, tag) {
 			continue
 		}
-		userHomeDir, err := environment.GetUserHome()
+		userHomeDir, err := os.GetUserHome()
 		if err != nil {
 			log.Fatalln("couldn't read user home directory", err)
 		}
diff --git a/pkg/coordinator/handlers.go b/pkg/coordinator/handlers.go
index 16fed446..9bc25bac 100644
--- a/pkg/coordinator/handlers.go
+++ b/pkg/coordinator/handlers.go
@@ -5,18 +5,17 @@ import (
 	"errors"
 	"log"
 	"math"
+	"net"
 	"net/http"
 	"strings"
 
 	"github.com/giongto35/cloud-game/v2/pkg/config/coordinator"
 	"github.com/giongto35/cloud-game/v2/pkg/cws"
 	"github.com/giongto35/cloud-game/v2/pkg/cws/api"
-	"github.com/giongto35/cloud-game/v2/pkg/environment"
 	"github.com/giongto35/cloud-game/v2/pkg/games"
 	"github.com/giongto35/cloud-game/v2/pkg/ice"
 	"github.com/giongto35/cloud-game/v2/pkg/network/websocket"
 	"github.com/giongto35/cloud-game/v2/pkg/service"
-	"github.com/giongto35/cloud-game/v2/pkg/util"
 	"github.com/gofrs/uuid"
 )
 
@@ -98,31 +97,9 @@ func (s *Server) WSO(w http.ResponseWriter, r *http.Request) {
 	wc.Zone = connRt.Zone
 	wc.PingServer = connRt.PingAddr
 
-	// Register to workersClients map the client connection
-	address := util.GetRemoteAddress(c)
-	public := util.IsPublicIP(address)
-
-	wc.Printf("addr: %v | zone: %v | pub: %v | ping: %v", address, wc.Zone, public, wc.PingServer)
-
-	// In case worker and coordinator in the same host
-	if !public && s.cfg.Environment.Get() == environment.Production {
-		// Don't accept private IP for worker's address in prod mode
-		// However, if the worker in the same host with coordinator, we can get public IP of worker
-		wc.Printf("[!] Address %s is invalid", address)
-
-		address = util.GetHostPublicIP()
-		wc.Printf("Find public address: %s", address)
-
-		if address == "" || !util.IsPublicIP(address) {
-			// Skip this worker because we cannot find public IP
-			wc.Println("[!] Unable to find public address, reject worker")
-			return
-		}
-	}
-
-	// Create a workerClient instance
-	wc.Address = address
-	wc.StunTurnServer = ice.ToJson(s.cfg.Webrtc.IceServers, ice.Replacement{From: "server-ip", To: address})
+	addr := getIP(c.RemoteAddr())
+	wc.Printf("addr: %v | zone: %v | ping: %v", addr, wc.Zone, wc.PingServer)
+	wc.StunTurnServer = ice.ToJson(s.cfg.Webrtc.IceServers, ice.Replacement{From: "server-ip", To: addr})
 
 	// Attach to Server instance with workerID, add defer
 	s.workerClients[workerID] = wc
@@ -229,25 +206,12 @@ func (s *Server) WS(w http.ResponseWriter, r *http.Request) {
 }
 
 func (s *Server) getBestWorkerClient(client *BrowserClient, zone string) (*WorkerClient, error) {
-	conf := s.cfg.Coordinator
-	if conf.DebugHost != "" {
-		client.Println("Connecting to debug host instead prod servers", conf.DebugHost)
-		wc := s.getWorkerFromAddress(conf.DebugHost)
-		if wc != nil {
-			return wc, nil
-		}
-		// if there is not debugHost, continue usual flow
-		client.Println("Not found, connecting to all available servers")
-	}
-
 	workerClients := s.getAvailableWorkers()
-
 	serverID, err := s.findBestServerFromBrowser(workerClients, client, zone)
 	if err != nil {
 		log.Println(err)
 		return nil, err
 	}
-
 	return s.workerClients[serverID], nil
 }
 
@@ -263,17 +227,6 @@ func (s *Server) getAvailableWorkers() map[string]*WorkerClient {
 	return workerClients
 }
 
-// getWorkerFromAddress returns the worker has given address
-func (s *Server) getWorkerFromAddress(address string) *WorkerClient {
-	for _, w := range s.workerClients {
-		if w.HasGameSlot() && w.Address == address {
-			return w
-		}
-	}
-
-	return nil
-}
-
 // findBestServerFromBrowser returns the best server for a session
 // All workers addresses are sent to user and user will ping to get latency
 func (s *Server) findBestServerFromBrowser(workerClients map[string]*WorkerClient, client *BrowserClient, zone string) (string, error) {
@@ -382,3 +335,13 @@ func createInitPackage(stunturn string, games []games.GameMetadata) string {
 	encodedList, _ := json.Marshal(initPackage)
 	return string(encodedList)
 }
+
+func getIP(a net.Addr) (addr string) {
+	if parts := strings.Split(a.String(), ":"); len(parts) == 2 {
+		addr = parts[0]
+	}
+	if addr == "" {
+		return "localhost"
+	}
+	return
+}
diff --git a/pkg/coordinator/worker.go b/pkg/coordinator/worker.go
index 83b661f6..2b18650e 100644
--- a/pkg/coordinator/worker.go
+++ b/pkg/coordinator/worker.go
@@ -13,7 +13,6 @@ type WorkerClient struct {
 	*cws.Client
 
 	WorkerID string
-	Address  string // ip address of worker
 	// public server used for ping check
 	PingServer     string
 	StunTurnServer string
diff --git a/pkg/environment/env.go b/pkg/environment/env.go
deleted file mode 100644
index 57a443cc..00000000
--- a/pkg/environment/env.go
+++ /dev/null
@@ -1,28 +0,0 @@
-package environment
-
-import "os/user"
-
-type Env string
-
-const (
-	Dev        Env = "dev"
-	Staging    Env = "staging"
-	Production Env = "prod"
-)
-
-func (env *Env) AnyOf(what ...Env) bool {
-	for _, cur := range what {
-		if *env == cur {
-			return true
-		}
-	}
-	return false
-}
-
-func GetUserHome() (string, error) {
-	me, err := user.Current()
-	if err != nil {
-		return "", err
-	}
-	return me.HomeDir, nil
-}
diff --git a/pkg/os/os.go b/pkg/os/os.go
index ea4e0ecd..e5141520 100644
--- a/pkg/os/os.go
+++ b/pkg/os/os.go
@@ -3,6 +3,7 @@ package os
 import (
 	"os"
 	"os/signal"
+	"os/user"
 	"syscall"
 )
 
@@ -21,3 +22,11 @@ func ExpectTermination() chan struct{} {
 	}()
 	return done
 }
+
+func GetUserHome() (string, error) {
+	me, err := user.Current()
+	if err != nil {
+		return "", err
+	}
+	return me.HomeDir, nil
+}
diff --git a/pkg/util/netutil.go b/pkg/util/netutil.go
deleted file mode 100644
index 855a7e78..00000000
--- a/pkg/util/netutil.go
+++ /dev/null
@@ -1,55 +0,0 @@
-package util
-
-import (
-	"net"
-	"strings"
-
-	"github.com/gorilla/websocket"
-)
-
-// GetRemoteAddress returns public address of websocket connection
-func GetRemoteAddress(conn *websocket.Conn) string {
-	var remoteAddr string
-	// log.Println("Address :", conn.RemoteAddr().String())
-	if parts := strings.Split(conn.RemoteAddr().String(), ":"); len(parts) == 2 {
-		remoteAddr = parts[0]
-	}
-	if remoteAddr == "" {
-		return "localhost"
-	}
-
-	return remoteAddr
-}
-
-// IsPublicIP checks if address is public address
-func IsPublicIP(address string) bool {
-	ip := net.ParseIP(address)
-	if ip.IsLoopback() || ip.IsLinkLocalMulticast() || ip.IsLinkLocalUnicast() {
-		return false
-	}
-	if ip4 := ip.To4(); ip4 != nil {
-		switch {
-		case ip4[0] == 10:
-			return false
-		case ip4[0] == 172 && ip4[1] >= 16 && ip4[1] <= 31:
-			return false
-		case ip4[0] == 192 && ip4[1] == 168:
-			return false
-		default:
-			return true
-		}
-	}
-	return false
-}
-
-// GetHostPublicIP to get the public ip address. Only work if not behind NAT
-func GetHostPublicIP() string {
-	conn, err := net.Dial("udp", "8.8.8.8:80")
-	if err != nil {
-		return ""
-	}
-	defer conn.Close()
-	localAddr := conn.LocalAddr().String()
-	idx := strings.LastIndex(localAddr, ":")
-	return localAddr[0:idx]
-}