Bump version to 0.112.2 and update TURN server configuration

- Updated version in Makefile to 0.112.2.
- Enhanced SFU server error handling to ignore http.ErrServerClosed.
- Added TURNS (TURN over TLS) configuration options in TURN server and related components.
- Updated firewall rules to include TURNS ports and modified related tests.
- Implemented self-signed certificate generation for TURNS.
- Adjusted TURN server to support both UDP and TCP listeners.
- Updated WebRTC and SFU components to accommodate new TURNS configurations.

Makefile

@@ -63,7 +63,7 @@ test-e2e-quick:
 
 .PHONY: build clean test deps tidy fmt vet lint install-hooks redeploy-devnet redeploy-testnet release health
 
-VERSION := 0.112.1
+VERSION := 0.112.2
 COMMIT  ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
 DATE    ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
 LDFLAGS := -X 'main.version=$(VERSION)' -X 'main.commit=$(COMMIT)' -X 'main.date=$(DATE)'

cmd/sfu/main.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"errors"
+	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
@@ -35,7 +37,7 @@ func main() {
 
 	// Start HTTP server in background
 	go func() {
-		if err := server.ListenAndServe(); err != nil {
+		if err := server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
 			logger.ComponentError(logging.ComponentSFU, "SFU server error", zap.Error(err))
 			os.Exit(1)
 		}

cmd/turn/config.go

@@ -40,14 +40,16 @@ func parseTURNConfig(logger *logging.ColoredLogger) *turn.Config {
 	}
 
 	type yamlCfg struct {
-		ListenAddr     string `yaml:"listen_addr"`
+		ListenAddr      string `yaml:"listen_addr"`
-		TLSListenAddr  string `yaml:"tls_listen_addr"`
+		TURNSListenAddr string `yaml:"turns_listen_addr"`
-		PublicIP       string `yaml:"public_ip"`
+		PublicIP        string `yaml:"public_ip"`
-		Realm          string `yaml:"realm"`
+		Realm           string `yaml:"realm"`
-		AuthSecret     string `yaml:"auth_secret"`
+		AuthSecret      string `yaml:"auth_secret"`
-		RelayPortStart int    `yaml:"relay_port_start"`
+		RelayPortStart  int    `yaml:"relay_port_start"`
-		RelayPortEnd   int    `yaml:"relay_port_end"`
+		RelayPortEnd    int    `yaml:"relay_port_end"`
-		Namespace      string `yaml:"namespace"`
+		Namespace       string `yaml:"namespace"`
+		TLSCertPath     string `yaml:"tls_cert_path"`
+		TLSKeyPath      string `yaml:"tls_key_path"`
 	}
 
 	data, err := os.ReadFile(configPath)
@@ -66,14 +68,16 @@ func parseTURNConfig(logger *logging.ColoredLogger) *turn.Config {
 	}
 
 	cfg := &turn.Config{
-		ListenAddr:     y.ListenAddr,
+		ListenAddr:      y.ListenAddr,
-		TLSListenAddr:  y.TLSListenAddr,
+		TURNSListenAddr: y.TURNSListenAddr,
-		PublicIP:       y.PublicIP,
+		PublicIP:        y.PublicIP,
-		Realm:          y.Realm,
+		Realm:           y.Realm,
-		AuthSecret:     y.AuthSecret,
+		AuthSecret:      y.AuthSecret,
-		RelayPortStart: y.RelayPortStart,
+		RelayPortStart:  y.RelayPortStart,
-		RelayPortEnd:   y.RelayPortEnd,
+		RelayPortEnd:    y.RelayPortEnd,
-		Namespace:      y.Namespace,
+		Namespace:       y.Namespace,
+		TLSCertPath:     y.TLSCertPath,
+		TLSKeyPath:      y.TLSKeyPath,
 	}
 
 	if errs := cfg.Validate(); len(errs) > 0 {

pkg/environments/production/firewall.go

@@ -12,7 +12,7 @@ type FirewallConfig struct {
 	IsNameserver  bool // enables port 53 TCP+UDP
 	AnyoneORPort  int  // 0 = disabled, typically 9001
 	WireGuardPort int  // default 51820
-	TURNEnabled   bool // enables TURN relay ports (3478/udp, 443/udp, relay range)
+	TURNEnabled   bool // enables TURN relay ports (3478/udp+tcp, 5349/tcp, relay range)
 	TURNRelayStart int // start of TURN relay port range (default 49152)
 	TURNRelayEnd   int // end of TURN relay port range (default 65535)
 }
@@ -89,8 +89,9 @@ func (fp *FirewallProvisioner) GenerateRules() []string {
 
 	// TURN relay (only for nodes running TURN servers)
 	if fp.config.TURNEnabled {
-		rules = append(rules, "ufw allow 3478/udp")  // TURN standard port
+		rules = append(rules, "ufw allow 3478/udp")  // TURN standard port (UDP)
-		rules = append(rules, "ufw allow 443/udp")   // TURN TLS port (does not conflict with Caddy TCP 443)
+		rules = append(rules, "ufw allow 3478/tcp")  // TURN standard port (TCP fallback)
+		rules = append(rules, "ufw allow 5349/tcp")  // TURNS (TURN over TLS/TCP)
 		if fp.config.TURNRelayStart > 0 && fp.config.TURNRelayEnd > 0 {
 			rules = append(rules, fmt.Sprintf("ufw allow %d:%d/udp", fp.config.TURNRelayStart, fp.config.TURNRelayEnd))
 		}
@@ -147,7 +148,8 @@ func (fp *FirewallProvisioner) IsActive() bool {
 func (fp *FirewallProvisioner) AddWebRTCRules(relayStart, relayEnd int) error {
 	rules := []string{
 		"ufw allow 3478/udp",
-		"ufw allow 443/udp",
+		"ufw allow 3478/tcp",
+		"ufw allow 5349/tcp",
 	}
 	if relayStart > 0 && relayEnd > 0 {
 		rules = append(rules, fmt.Sprintf("ufw allow %d:%d/udp", relayStart, relayEnd))
@@ -168,7 +170,8 @@ func (fp *FirewallProvisioner) AddWebRTCRules(relayStart, relayEnd int) error {
 func (fp *FirewallProvisioner) RemoveWebRTCRules(relayStart, relayEnd int) error {
 	rules := []string{
 		"ufw delete allow 3478/udp",
-		"ufw delete allow 443/udp",
+		"ufw delete allow 3478/tcp",
+		"ufw delete allow 5349/tcp",
 	}
 	if relayStart > 0 && relayEnd > 0 {
 		rules = append(rules, fmt.Sprintf("ufw delete allow %d:%d/udp", relayStart, relayEnd))

pkg/environments/production/firewall_test.go

@@ -96,6 +96,21 @@ func TestFirewallProvisioner_GenerateRules_FullConfig(t *testing.T) {
 	assertContainsRule(t, rules, "ufw allow 9001/tcp")
 }
 
+func TestFirewallProvisioner_GenerateRules_WithTURN(t *testing.T) {
+	fp := NewFirewallProvisioner(FirewallConfig{
+		TURNEnabled:    true,
+		TURNRelayStart: 49152,
+		TURNRelayEnd:   49951,
+	})
+
+	rules := fp.GenerateRules()
+
+	assertContainsRule(t, rules, "ufw allow 3478/udp")
+	assertContainsRule(t, rules, "ufw allow 3478/tcp")
+	assertContainsRule(t, rules, "ufw allow 5349/tcp")
+	assertContainsRule(t, rules, "ufw allow 49152:49951/udp")
+}
+
 func TestFirewallProvisioner_DefaultPorts(t *testing.T) {
 	fp := NewFirewallProvisioner(FirewallConfig{})
 

pkg/gateway/handlers/namespace/spawn_handler.go

@@ -65,7 +65,7 @@ type SpawnRequest struct {
 
 	// TURN config (when action = "spawn-turn")
 	TURNListenAddr  string `json:"turn_listen_addr,omitempty"`
-	TURNTLSAddr     string `json:"turn_tls_addr,omitempty"`
+	TURNTURNSAddr   string `json:"turn_turns_addr,omitempty"`
 	TURNPublicIP    string `json:"turn_public_ip,omitempty"`
 	TURNRealm       string `json:"turn_realm,omitempty"`
 	TURNAuthSecret  string `json:"turn_auth_secret,omitempty"`
@@ -347,7 +347,7 @@ func (h *SpawnHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			Namespace:      req.Namespace,
 			NodeID:         req.NodeID,
 			ListenAddr:     req.TURNListenAddr,
-			TLSListenAddr:  req.TURNTLSAddr,
+			TURNSListenAddr: req.TURNTURNSAddr,
 			PublicIP:       req.TURNPublicIP,
 			Realm:          req.TURNRealm,
 			AuthSecret:     req.TURNAuthSecret,

pkg/gateway/handlers/webrtc/credentials.go

@@ -38,7 +38,8 @@ func (h *WebRTCHandlers) CredentialsHandler(w http.ResponseWriter, r *http.Reque
 	if h.turnDomain != "" {
 		uris = append(uris,
 			fmt.Sprintf("turn:%s:3478?transport=udp", h.turnDomain),
-			fmt.Sprintf("turn:%s:443?transport=udp", h.turnDomain),
+			fmt.Sprintf("turn:%s:3478?transport=tcp", h.turnDomain),
+			fmt.Sprintf("turns:%s:5349", h.turnDomain),
 		)
 	}
 

pkg/gateway/handlers/webrtc/handlers_test.go

@@ -61,8 +61,8 @@ func TestCredentialsHandler_Success(t *testing.T) {
 		t.Errorf("ttl = %v, want 600", result["ttl"])
 	}
 	uris, ok := result["uris"].([]interface{})
-	if !ok || len(uris) != 2 {
+	if !ok || len(uris) != 3 {
-		t.Errorf("uris count = %v, want 2", result["uris"])
+		t.Errorf("uris count = %v, want 3", result["uris"])
 	}
 }
 

pkg/namespace/cluster_manager.go

@@ -1956,15 +1956,15 @@ func (cm *ClusterManager) restoreClusterFromState(ctx context.Context, state *Cl
 			webrtcCfg, err := cm.GetWebRTCConfig(ctx, state.NamespaceName)
 			if err == nil && webrtcCfg != nil {
 				turnCfg := TURNInstanceConfig{
-					Namespace:      state.NamespaceName,
+					Namespace:       state.NamespaceName,
-					NodeID:         cm.localNodeID,
+					NodeID:          cm.localNodeID,
-					ListenAddr:     fmt.Sprintf("0.0.0.0:%d", state.TURNListenPort),
+					ListenAddr:      fmt.Sprintf("0.0.0.0:%d", state.TURNListenPort),
-					TLSListenAddr:  fmt.Sprintf("0.0.0.0:%d", state.TURNTLSPort),
+					TURNSListenAddr: fmt.Sprintf("0.0.0.0:%d", state.TURNTLSPort),
-					PublicIP:       "", // Will be resolved by spawner or from node info
+					PublicIP:        "", // Will be resolved by spawner or from node info
-					Realm:          cm.baseDomain,
+					Realm:           cm.baseDomain,
-					AuthSecret:     webrtcCfg.TURNSharedSecret,
+					AuthSecret:      webrtcCfg.TURNSharedSecret,
-					RelayPortStart: state.TURNRelayPortStart,
+					RelayPortStart:  state.TURNRelayPortStart,
-					RelayPortEnd:   state.TURNRelayPortEnd,
+					RelayPortEnd:    state.TURNRelayPortEnd,
 				}
 				if err := cm.systemdSpawner.SpawnTURN(ctx, state.NamespaceName, cm.localNodeID, turnCfg); err != nil {
 					cm.logger.Error("Failed to restore TURN from state", zap.String("namespace", state.NamespaceName), zap.Error(err))
@@ -1992,8 +1992,8 @@ func (cm *ClusterManager) restoreClusterFromState(ctx context.Context, state *Cl
 					MediaPortStart: state.SFUMediaPortStart,
 					MediaPortEnd:   state.SFUMediaPortEnd,
 					TURNServers: []sfu.TURNServerConfig{
-						{Host: turnDomain, Port: TURNDefaultPort},
+						{Host: turnDomain, Port: TURNDefaultPort, Secure: false},
-						{Host: turnDomain, Port: TURNTLSPort},
+						{Host: turnDomain, Port: TURNSPort, Secure: true},
 					},
 					TURNSecret:  webrtcCfg.TURNSharedSecret,
 					TURNCredTTL: webrtcCfg.TURNCredentialTTL,

pkg/namespace/cluster_manager_webrtc.go

@@ -102,8 +102,8 @@ func (cm *ClusterManager) EnableWebRTC(ctx context.Context, namespaceName, enabl
 	// 9. Build TURN server list for SFU config
 	turnDomain := fmt.Sprintf("turn.ns-%s.%s", namespaceName, cm.baseDomain)
 	turnServers := []sfu.TURNServerConfig{
-		{Host: turnDomain, Port: TURNDefaultPort},
+		{Host: turnDomain, Port: TURNDefaultPort, Secure: false},
-		{Host: turnDomain, Port: TURNTLSPort},
+		{Host: turnDomain, Port: TURNSPort, Secure: true},
 	}
 
 	// 10. Get port blocks for RQLite DSN
@@ -123,15 +123,15 @@ func (cm *ClusterManager) EnableWebRTC(ctx context.Context, namespaceName, enabl
 	for _, node := range turnNodes {
 		turnBlock := turnBlocks[node.NodeID]
 		turnCfg := TURNInstanceConfig{
-			Namespace:      namespaceName,
+			Namespace:       namespaceName,
-			NodeID:         node.NodeID,
+			NodeID:          node.NodeID,
-			ListenAddr:     fmt.Sprintf("0.0.0.0:%d", turnBlock.TURNListenPort),
+			ListenAddr:      fmt.Sprintf("0.0.0.0:%d", turnBlock.TURNListenPort),
-			TLSListenAddr:  fmt.Sprintf("0.0.0.0:%d", turnBlock.TURNTLSPort),
+			TURNSListenAddr: fmt.Sprintf("0.0.0.0:%d", turnBlock.TURNTLSPort),
-			PublicIP:       node.PublicIP,
+			PublicIP:        node.PublicIP,
-			Realm:          cm.baseDomain,
+			Realm:           cm.baseDomain,
-			AuthSecret:     turnSecret,
+			AuthSecret:      turnSecret,
-			RelayPortStart: turnBlock.TURNRelayPortStart,
+			RelayPortStart:  turnBlock.TURNRelayPortStart,
-			RelayPortEnd:   turnBlock.TURNRelayPortEnd,
+			RelayPortEnd:    turnBlock.TURNRelayPortEnd,
 		}
 
 		if err := cm.spawnTURNOnNode(ctx, node, namespaceName, turnCfg); err != nil {
@@ -184,9 +184,11 @@ func (cm *ClusterManager) EnableWebRTC(ctx context.Context, namespaceName, enabl
 		turnIPs = append(turnIPs, node.PublicIP)
 	}
 	if err := cm.dnsManager.CreateTURNRecords(ctx, namespaceName, turnIPs); err != nil {
-		cm.logger.Warn("Failed to create TURN DNS records",
+		cm.logger.Error("Failed to create TURN DNS records, aborting WebRTC enablement",
 			zap.String("namespace", namespaceName),
 			zap.Error(err))
+		cm.cleanupWebRTCOnError(ctx, cluster.ID, namespaceName, clusterNodes)
+		return fmt.Errorf("failed to create TURN DNS records: %w", err)
 	}
 
 	// 14. Update cluster-state.json on all nodes with WebRTC info
@@ -438,8 +440,9 @@ func (cm *ClusterManager) spawnSFURemote(ctx context.Context, nodeIP string, cfg
 	turnServers := make([]map[string]interface{}, len(cfg.TURNServers))
 	for i, ts := range cfg.TURNServers {
 		turnServers[i] = map[string]interface{}{
-			"host": ts.Host,
+			"host":   ts.Host,
-			"port": ts.Port,
+			"port":   ts.Port,
+			"secure": ts.Secure,
 		}
 	}
 
@@ -465,7 +468,7 @@ func (cm *ClusterManager) spawnTURNRemote(ctx context.Context, nodeIP string, cf
 		"namespace":         cfg.Namespace,
 		"node_id":           cfg.NodeID,
 		"turn_listen_addr":  cfg.ListenAddr,
-		"turn_tls_addr":     cfg.TLSListenAddr,
+		"turn_turns_addr":   cfg.TURNSListenAddr,
 		"turn_public_ip":    cfg.PublicIP,
 		"turn_realm":        cfg.Realm,
 		"turn_auth_secret":  cfg.AuthSecret,

pkg/namespace/dns_manager.go

@@ -61,7 +61,7 @@ func (drm *DNSRecordManager) CreateNamespaceRecords(ctx context.Context, namespa
 		insertQuery := `
 			INSERT INTO dns_records (
 				id, fqdn, record_type, value, ttl, namespace, created_by, is_active, created_at, updated_at
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+			) VALUES (?, ?, ?, ?, ?, ?, ?, TRUE, ?, ?)
 		`
 		now := time.Now()
 		_, err := drm.db.Exec(internalCtx, insertQuery,
@@ -72,7 +72,6 @@ func (drm *DNSRecordManager) CreateNamespaceRecords(ctx context.Context, namespa
 			60,                            // 60 second TTL for quick failover
 			"namespace:"+namespaceName,    // Track ownership with namespace prefix
 			"cluster-manager",             // Created by the cluster manager
-			true,                          // Active
 			now,
 			now,
 		)
@@ -96,7 +95,7 @@ func (drm *DNSRecordManager) CreateNamespaceRecords(ctx context.Context, namespa
 		insertQuery := `
 			INSERT INTO dns_records (
 				id, fqdn, record_type, value, ttl, namespace, created_by, is_active, created_at, updated_at
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+			) VALUES (?, ?, ?, ?, ?, ?, ?, TRUE, ?, ?)
 		`
 		now := time.Now()
 		_, err := drm.db.Exec(internalCtx, insertQuery,
@@ -107,7 +106,6 @@ func (drm *DNSRecordManager) CreateNamespaceRecords(ctx context.Context, namespa
 			60,
 			"namespace:"+namespaceName,
 			"cluster-manager",
-			true,
 			now,
 			now,
 		)
@@ -230,11 +228,11 @@ func (drm *DNSRecordManager) AddNamespaceRecord(ctx context.Context, namespaceNa
 		insertQuery := `
 			INSERT INTO dns_records (
 				id, fqdn, record_type, value, ttl, namespace, created_by, is_active, created_at, updated_at
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+			) VALUES (?, ?, ?, ?, ?, ?, ?, TRUE, ?, ?)
 		`
 		_, err := drm.db.Exec(internalCtx, insertQuery,
 			recordID, f, "A", ip, 60,
-			"namespace:"+namespaceName, "cluster-manager", true, now, now,
+			"namespace:"+namespaceName, "cluster-manager", now, now,
 		)
 		if err != nil {
 			return &ClusterError{
@@ -328,13 +326,13 @@ func (drm *DNSRecordManager) CreateTURNRecords(ctx context.Context, namespaceNam
 		insertQuery := `
 			INSERT INTO dns_records (
 				id, fqdn, record_type, value, ttl, namespace, created_by, is_active, created_at, updated_at
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+			) VALUES (?, ?, ?, ?, ?, ?, ?, TRUE, ?, ?)
 		`
 		_, err := drm.db.Exec(internalCtx, insertQuery,
 			recordID, fqdn, "A", ip, 60,
 			"namespace-turn:"+namespaceName,
 			"cluster-manager",
-			true, now, now,
+			now, now,
 		)
 		if err != nil {
 			return &ClusterError{

pkg/namespace/systemd_spawner.go

@@ -7,6 +7,7 @@ import (
 	"path/filepath"
 	"time"
 
+	production "github.com/DeBrosOfficial/network/pkg/environments/production"
 	"github.com/DeBrosOfficial/network/pkg/gateway"
 	"github.com/DeBrosOfficial/network/pkg/olric"
 	"github.com/DeBrosOfficial/network/pkg/rqlite"
@@ -392,15 +393,15 @@ func (s *SystemdSpawner) StopSFU(ctx context.Context, namespace, nodeID string)
 
 // TURNInstanceConfig holds configuration for spawning a TURN instance
 type TURNInstanceConfig struct {
-	Namespace      string
+	Namespace       string
-	NodeID         string
+	NodeID          string
-	ListenAddr     string // e.g., "0.0.0.0:3478"
+	ListenAddr      string // e.g., "0.0.0.0:3478"
-	TLSListenAddr  string // e.g., "0.0.0.0:443" (UDP, no conflict with Caddy TCP)
+	TURNSListenAddr string // e.g., "0.0.0.0:5349" (TURNS over TLS/TCP)
-	PublicIP       string // Public IP for TURN relay allocations
+	PublicIP        string // Public IP for TURN relay allocations
-	Realm          string // TURN realm (typically base domain)
+	Realm           string // TURN realm (typically base domain)
-	AuthSecret     string // HMAC-SHA1 shared secret
+	AuthSecret      string // HMAC-SHA1 shared secret
-	RelayPortStart int    // Start of relay port range
+	RelayPortStart  int    // Start of relay port range
-	RelayPortEnd   int    // End of relay port range
+	RelayPortEnd    int    // End of relay port range
 }
 
 // SpawnTURN starts a TURN instance using systemd
@@ -419,16 +420,38 @@ func (s *SystemdSpawner) SpawnTURN(ctx context.Context, namespace, nodeID string
 
 	configPath := filepath.Join(configDir, fmt.Sprintf("turn-%s.yaml", nodeID))
 
+	// Generate self-signed TLS cert for TURNS if not already present
+	certPath := filepath.Join(configDir, "turn-cert.pem")
+	keyPath := filepath.Join(configDir, "turn-key.pem")
+	if cfg.TURNSListenAddr != "" {
+		if _, err := os.Stat(certPath); os.IsNotExist(err) {
+			if err := turn.GenerateSelfSignedCert(certPath, keyPath, cfg.PublicIP); err != nil {
+				s.logger.Warn("Failed to generate TURNS self-signed cert, TURNS will be disabled",
+					zap.String("namespace", namespace),
+					zap.Error(err))
+				cfg.TURNSListenAddr = "" // Disable TURNS if cert generation fails
+			} else {
+				s.logger.Info("Generated TURNS self-signed certificate",
+					zap.String("namespace", namespace),
+					zap.String("cert_path", certPath))
+			}
+		}
+	}
+
 	// Build TURN YAML config
 	turnConfig := turn.Config{
-		ListenAddr:     cfg.ListenAddr,
+		ListenAddr:      cfg.ListenAddr,
-		TLSListenAddr:  cfg.TLSListenAddr,
+		TURNSListenAddr: cfg.TURNSListenAddr,
-		PublicIP:       cfg.PublicIP,
+		PublicIP:        cfg.PublicIP,
-		Realm:          cfg.Realm,
+		Realm:           cfg.Realm,
-		AuthSecret:     cfg.AuthSecret,
+		AuthSecret:      cfg.AuthSecret,
-		RelayPortStart: cfg.RelayPortStart,
+		RelayPortStart:  cfg.RelayPortStart,
-		RelayPortEnd:   cfg.RelayPortEnd,
+		RelayPortEnd:    cfg.RelayPortEnd,
-		Namespace:      cfg.Namespace,
+		Namespace:       cfg.Namespace,
+	}
+	if cfg.TURNSListenAddr != "" {
+		turnConfig.TLSCertPath = certPath
+		turnConfig.TLSKeyPath = keyPath
 	}
 
 	configBytes, err := yaml.Marshal(turnConfig)
@@ -464,6 +487,14 @@ func (s *SystemdSpawner) SpawnTURN(ctx context.Context, namespace, nodeID string
 		return fmt.Errorf("TURN service did not become active: %w", err)
 	}
 
+	// Add firewall rules for TURN ports
+	fw := production.NewFirewallProvisioner(production.FirewallConfig{})
+	if err := fw.AddWebRTCRules(cfg.RelayPortStart, cfg.RelayPortEnd); err != nil {
+		s.logger.Warn("Failed to add WebRTC firewall rules (TURN service is running)",
+			zap.String("namespace", namespace),
+			zap.Error(err))
+	}
+
 	s.logger.Info("TURN spawned successfully via systemd",
 		zap.String("namespace", namespace),
 		zap.String("node_id", nodeID))
@@ -477,7 +508,17 @@ func (s *SystemdSpawner) StopTURN(ctx context.Context, namespace, nodeID string)
 		zap.String("namespace", namespace),
 		zap.String("node_id", nodeID))
 
-	return s.systemdMgr.StopService(namespace, systemd.ServiceTypeTURN)
+	err := s.systemdMgr.StopService(namespace, systemd.ServiceTypeTURN)
+
+	// Remove firewall rules for standard TURN ports
+	fw := production.NewFirewallProvisioner(production.FirewallConfig{})
+	if fwErr := fw.RemoveWebRTCRules(0, 0); fwErr != nil {
+		s.logger.Warn("Failed to remove WebRTC firewall rules",
+			zap.String("namespace", namespace),
+			zap.Error(fwErr))
+	}
+
+	return err
 }
 
 // SaveClusterState writes cluster state JSON to the namespace data directory.

pkg/namespace/types.go

@@ -110,8 +110,8 @@ const (
 	TURNRelayPortsPerNamespace = 800
 
 	// TURN listen ports (standard)
-	TURNDefaultPort    = 3478
+	TURNDefaultPort = 3478
-	TURNTLSPort        = 443
+	TURNSPort       = 5349 // TURNS (TURN over TLS on TCP)
 
 	// Default TURN credential TTL in seconds (10 minutes)
 	DefaultTURNCredentialTTL = 600

pkg/namespace/webrtc_port_allocator.go

@@ -217,7 +217,7 @@ func (wpa *WebRTCPortAllocator) tryAllocateTURNPorts(ctx context.Context, nodeID
 		NamespaceClusterID: namespaceClusterID,
 		ServiceType:        "turn",
 		TURNListenPort:     TURNDefaultPort,
-		TURNTLSPort:        TURNTLSPort,
+		TURNTLSPort:        TURNSPort,
 		TURNRelayPortStart: relayStart,
 		TURNRelayPortEnd:   relayStart + TURNRelayPortsPerNamespace - 1,
 		AllocatedAt:        time.Now(),

pkg/namespace/webrtc_port_allocator_test.go

@@ -168,8 +168,8 @@ func TestWebRTCPortAllocator_AllocateTURNPorts(t *testing.T) {
 	if block.TURNListenPort != TURNDefaultPort {
 		t.Errorf("TURNListenPort = %d, want %d", block.TURNListenPort, TURNDefaultPort)
 	}
-	if block.TURNTLSPort != TURNTLSPort {
+	if block.TURNTLSPort != TURNSPort {
-		t.Errorf("TURNTLSPort = %d, want %d", block.TURNTLSPort, TURNTLSPort)
+		t.Errorf("TURNTLSPort = %d, want %d", block.TURNTLSPort, TURNSPort)
 	}
 	if block.TURNRelayPortStart != TURNRelayPortRangeStart {
 		t.Errorf("TURNRelayPortStart = %d, want %d", block.TURNRelayPortStart, TURNRelayPortRangeStart)
@@ -320,7 +320,7 @@ func TestWebRTCPortBlock_TURNFields(t *testing.T) {
 		NamespaceClusterID: "cluster-1",
 		ServiceType:        "turn",
 		TURNListenPort:     3478,
-		TURNTLSPort:        443,
+		TURNTLSPort:        5349,
 		TURNRelayPortStart: 49152,
 		TURNRelayPortEnd:   49951,
 	}

pkg/sfu/config.go

@@ -30,8 +30,9 @@ type Config struct {
 
 // TURNServerConfig represents a single TURN server endpoint
 type TURNServerConfig struct {
-	Host string `yaml:"host"` // IP or hostname
+	Host   string `yaml:"host"`   // IP or hostname
-	Port int    `yaml:"port"` // UDP port (3478 or 443)
+	Port   int    `yaml:"port"`   // Port number (3478 for TURN, 5349 for TURNS)
+	Secure bool   `yaml:"secure"` // true = TURNS (TLS over TCP), false = TURN (UDP)
 }
 
 // Validate checks the SFU configuration for errors

pkg/sfu/room.go

@@ -539,7 +539,12 @@ func (r *Room) buildICEServers() []webrtc.ICEServer {
 
 	var urls []string
 	for _, ts := range r.config.TURNServers {
-		urls = append(urls, fmt.Sprintf("turn:%s:%d?transport=udp", ts.Host, ts.Port))
+		if ts.Secure {
+			urls = append(urls, fmt.Sprintf("turns:%s:%d", ts.Host, ts.Port))
+		} else {
+			urls = append(urls, fmt.Sprintf("turn:%s:%d?transport=udp", ts.Host, ts.Port))
+			urls = append(urls, fmt.Sprintf("turn:%s:%d?transport=tcp", ts.Host, ts.Port))
+		}
 	}
 
 	ttl := time.Duration(r.config.TURNCredentialTTL) * time.Second

pkg/sfu/room_test.go

@@ -179,11 +179,14 @@ func TestRoomBuildICEServers(t *testing.T) {
 	if len(servers) != 1 {
 		t.Fatalf("ICE servers count = %d, want 1", len(servers))
 	}
-	if len(servers[0].URLs) != 1 {
+	if len(servers[0].URLs) != 2 {
-		t.Fatalf("URLs count = %d, want 1", len(servers[0].URLs))
+		t.Fatalf("URLs count = %d, want 2", len(servers[0].URLs))
 	}
 	if servers[0].URLs[0] != "turn:1.2.3.4:3478?transport=udp" {
-		t.Errorf("URL = %q, want %q", servers[0].URLs[0], "turn:1.2.3.4:3478?transport=udp")
+		t.Errorf("URL[0] = %q, want %q", servers[0].URLs[0], "turn:1.2.3.4:3478?transport=udp")
+	}
+	if servers[0].URLs[1] != "turn:1.2.3.4:3478?transport=tcp" {
+		t.Errorf("URL[1] = %q, want %q", servers[0].URLs[1], "turn:1.2.3.4:3478?transport=tcp")
 	}
 	if servers[0].Username == "" {
 		t.Error("Username should not be empty")
@@ -222,8 +225,8 @@ func TestRoomBuildICEServersNoSecret(t *testing.T) {
 func TestRoomBuildICEServersMultipleTURN(t *testing.T) {
 	cfg := testConfig()
 	cfg.TURNServers = []TURNServerConfig{
-		{Host: "1.2.3.4", Port: 3478},
+		{Host: "1.2.3.4", Port: 3478},              // non-secure → UDP + TCP = 2 URIs
-		{Host: "5.6.7.8", Port: 443},
+		{Host: "5.6.7.8", Port: 5349, Secure: true}, // secure → 1 URI
 	}
 
 	rm := NewRoomManager(cfg, testLogger())
@@ -233,8 +236,9 @@ func TestRoomBuildICEServersMultipleTURN(t *testing.T) {
 	if len(servers) != 1 {
 		t.Fatalf("ICE servers count = %d, want 1", len(servers))
 	}
-	if len(servers[0].URLs) != 2 {
+	// 1 non-secure (UDP+TCP) + 1 secure (TURNS) = 3 URIs
-		t.Fatalf("URLs count = %d, want 2", len(servers[0].URLs))
+	if len(servers[0].URLs) != 3 {
+		t.Fatalf("URLs count = %d, want 3", len(servers[0].URLs))
 	}
 }
 

pkg/sfu/server.go

@@ -257,7 +257,12 @@ func (s *Server) sendTURNCredentials(peer *Peer) {
 
 	var uris []string
 	for _, ts := range s.config.TURNServers {
-		uris = append(uris, fmt.Sprintf("turn:%s:%d?transport=udp", ts.Host, ts.Port))
+		if ts.Secure {
+			uris = append(uris, fmt.Sprintf("turns:%s:%d", ts.Host, ts.Port))
+		} else {
+			uris = append(uris, fmt.Sprintf("turn:%s:%d?transport=udp", ts.Host, ts.Port))
+			uris = append(uris, fmt.Sprintf("turn:%s:%d?transport=tcp", ts.Host, ts.Port))
+		}
 	}
 
 	peer.SendMessage(NewServerMessage(MessageTypeTURNCredentials, &TURNCredentialsData{

pkg/sfu/signaling_test.go

@@ -233,7 +233,7 @@ func TestTURNCredentialsDataSerialization(t *testing.T) {
 		Username: "1234567890:test-ns",
 		Password: "base64password==",
 		TTL:      600,
-		URIs:     []string{"turn:1.2.3.4:3478?transport=udp", "turn:5.6.7.8:443?transport=udp"},
+		URIs:     []string{"turn:1.2.3.4:3478?transport=udp", "turns:5.6.7.8:5349"},
 	}
 
 	data, err := json.Marshal(creds)

pkg/turn/config.go

@@ -10,9 +10,14 @@ type Config struct {
 	// ListenAddr is the address to bind the TURN listener (e.g., "0.0.0.0:3478")
 	ListenAddr string `yaml:"listen_addr"`
 
-	// TLSListenAddr is the address for TURN over TLS/DTLS (e.g., "0.0.0.0:443")
+	// TURNSListenAddr is the address for TURNS (TURN over TLS on TCP, e.g., "0.0.0.0:5349")
-	// Uses UDP 443 — requires Caddy HTTP/3 (QUIC) to be disabled to avoid port conflict
+	TURNSListenAddr string `yaml:"turns_listen_addr"`
-	TLSListenAddr string `yaml:"tls_listen_addr"`
+
+	// TLSCertPath is the path to the TLS certificate PEM file (for TURNS)
+	TLSCertPath string `yaml:"tls_cert_path"`
+
+	// TLSKeyPath is the path to the TLS private key PEM file (for TURNS)
+	TLSKeyPath string `yaml:"tls_key_path"`
 
 	// PublicIP is the public IP address of this node, advertised in TURN allocations
 	PublicIP string `yaml:"public_ip"`

pkg/turn/server.go

@@ -3,6 +3,7 @@ package turn
 import (
 	"crypto/hmac"
 	"crypto/sha1"
+	"crypto/tls"
 	"encoding/base64"
 	"fmt"
 	"net"
@@ -16,11 +17,12 @@ import (
 
 // Server wraps a Pion TURN server with namespace-scoped HMAC-SHA1 authentication.
 type Server struct {
-	config     *Config
+	config      *Config
-	logger     *zap.Logger
+	logger      *zap.Logger
-	turnServer *pionTurn.Server
+	turnServer  *pionTurn.Server
-	conn       net.PacketConn // UDP listener on primary port (3478)
+	conn        net.PacketConn // UDP listener on primary port (3478)
-	tlsConn    net.PacketConn // UDP listener on TLS port (443)
+	tcpListener net.Listener   // Plain TCP listener on primary port (3478)
+	tlsListener net.Listener   // TLS TCP listener for TURNS (port 5349)
 }
 
 // NewServer creates and starts a TURN server.
@@ -58,18 +60,45 @@ func NewServer(cfg *Config, logger *zap.Logger) (*Server, error) {
 		},
 	}
 
-	// Create TLS UDP listener (port 443) if configured
+	// Plain TCP listener on same port as UDP (3478) for TCP TURN fallback
-	// Requires Caddy HTTP/3 (QUIC) to be disabled to avoid UDP 443 conflict
+	var listenerConfigs []pionTurn.ListenerConfig
-	if cfg.TLSListenAddr != "" {
+	tcpListener, err := net.Listen("tcp", cfg.ListenAddr)
-		tlsConn, err := net.ListenPacket("udp4", cfg.TLSListenAddr)
+	if err != nil {
+		conn.Close()
+		return nil, fmt.Errorf("failed to listen TCP on %s: %w", cfg.ListenAddr, err)
+	}
+	s.tcpListener = tcpListener
+
+	listenerConfigs = append(listenerConfigs, pionTurn.ListenerConfig{
+		Listener: tcpListener,
+		RelayAddressGenerator: &pionTurn.RelayAddressGeneratorPortRange{
+			RelayAddress: relayIP,
+			Address:      "0.0.0.0",
+			MinPort:      uint16(cfg.RelayPortStart),
+			MaxPort:      uint16(cfg.RelayPortEnd),
+		},
+	})
+
+	// TURNS: TLS over TCP listener (port 5349) if configured
+	if cfg.TURNSListenAddr != "" && cfg.TLSCertPath != "" && cfg.TLSKeyPath != "" {
+		cert, err := tls.LoadX509KeyPair(cfg.TLSCertPath, cfg.TLSKeyPath)
 		if err != nil {
 			conn.Close()
-			return nil, fmt.Errorf("failed to listen on %s: %w", cfg.TLSListenAddr, err)
+			return nil, fmt.Errorf("failed to load TLS cert/key: %w", err)
 		}
-		s.tlsConn = tlsConn
+		tlsConfig := &tls.Config{
+			Certificates: []tls.Certificate{cert},
+			MinVersion:   tls.VersionTLS12,
+		}
+		tlsListener, err := tls.Listen("tcp", cfg.TURNSListenAddr, tlsConfig)
+		if err != nil {
+			conn.Close()
+			return nil, fmt.Errorf("failed to listen on %s: %w", cfg.TURNSListenAddr, err)
+		}
+		s.tlsListener = tlsListener
 
-		packetConfigs = append(packetConfigs, pionTurn.PacketConnConfig{
+		listenerConfigs = append(listenerConfigs, pionTurn.ListenerConfig{
-			PacketConn: tlsConn,
+			Listener: tlsListener,
 			RelayAddressGenerator: &pionTurn.RelayAddressGeneratorPortRange{
 				RelayAddress: relayIP,
 				Address:      "0.0.0.0",
@@ -80,13 +109,17 @@ func NewServer(cfg *Config, logger *zap.Logger) (*Server, error) {
 	}
 
 	// Create TURN server with HMAC-SHA1 auth
-	turnServer, err := pionTurn.NewServer(pionTurn.ServerConfig{
+	serverConfig := pionTurn.ServerConfig{
 		Realm: cfg.Realm,
 		AuthHandler: func(username, realm string, srcAddr net.Addr) ([]byte, bool) {
 			return s.authHandler(username, realm, srcAddr)
 		},
 		PacketConnConfigs: packetConfigs,
-	})
+	}
+	if len(listenerConfigs) > 0 {
+		serverConfig.ListenerConfigs = listenerConfigs
+	}
+	turnServer, err := pionTurn.NewServer(serverConfig)
 	if err != nil {
 		s.closeListeners()
 		return nil, fmt.Errorf("failed to create TURN server: %w", err)
@@ -94,8 +127,9 @@ func NewServer(cfg *Config, logger *zap.Logger) (*Server, error) {
 	s.turnServer = turnServer
 
 	s.logger.Info("TURN server started",
-		zap.String("listen_addr", cfg.ListenAddr),
+		zap.String("listen_addr_udp", cfg.ListenAddr),
-		zap.String("tls_listen_addr", cfg.TLSListenAddr),
+		zap.String("listen_addr_tcp", cfg.ListenAddr),
+		zap.String("turns_listen_addr", cfg.TURNSListenAddr),
 		zap.String("public_ip", cfg.PublicIP),
 		zap.String("realm", cfg.Realm),
 		zap.Int("relay_port_start", cfg.RelayPortStart),
@@ -178,9 +212,13 @@ func (s *Server) closeListeners() {
 		s.conn.Close()
 		s.conn = nil
 	}
-	if s.tlsConn != nil {
+	if s.tcpListener != nil {
-		s.tlsConn.Close()
+		s.tcpListener.Close()
-		s.tlsConn = nil
+		s.tcpListener = nil
+	}
+	if s.tlsListener != nil {
+		s.tlsListener.Close()
+		s.tlsListener = nil
 	}
 }
 

pkg/turn/tls.go

@@ -0,0 +1,83 @@
+package turn
+
+import (
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/pem"
+	"fmt"
+	"math/big"
+	"net"
+	"os"
+	"time"
+)
+
+// GenerateSelfSignedCert generates a self-signed TLS certificate for TURNS.
+// The certificate is valid for 1 year and includes the public IP as a SAN.
+func GenerateSelfSignedCert(certPath, keyPath, publicIP string) error {
+	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		return fmt.Errorf("failed to generate private key: %w", err)
+	}
+
+	serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
+	if err != nil {
+		return fmt.Errorf("failed to generate serial number: %w", err)
+	}
+
+	template := x509.Certificate{
+		SerialNumber: serialNumber,
+		Subject: pkix.Name{
+			Organization: []string{"Orama Network"},
+			CommonName:   "TURN Server",
+		},
+		NotBefore:             time.Now(),
+		NotAfter:              time.Now().Add(365 * 24 * time.Hour),
+		KeyUsage:              x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
+		BasicConstraintsValid: true,
+	}
+
+	if ip := net.ParseIP(publicIP); ip != nil {
+		template.IPAddresses = append(template.IPAddresses, ip)
+	}
+
+	certDER, err := x509.CreateCertificate(rand.Reader, &template, &template, &key.PublicKey, key)
+	if err != nil {
+		return fmt.Errorf("failed to create certificate: %w", err)
+	}
+
+	certFile, err := os.Create(certPath)
+	if err != nil {
+		return fmt.Errorf("failed to create cert file: %w", err)
+	}
+	defer certFile.Close()
+
+	if err := pem.Encode(certFile, &pem.Block{Type: "CERTIFICATE", Bytes: certDER}); err != nil {
+		return fmt.Errorf("failed to write cert PEM: %w", err)
+	}
+
+	keyDER, err := x509.MarshalECPrivateKey(key)
+	if err != nil {
+		return fmt.Errorf("failed to marshal private key: %w", err)
+	}
+
+	keyFile, err := os.Create(keyPath)
+	if err != nil {
+		return fmt.Errorf("failed to create key file: %w", err)
+	}
+	defer keyFile.Close()
+
+	if err := pem.Encode(keyFile, &pem.Block{Type: "EC PRIVATE KEY", Bytes: keyDER}); err != nil {
+		return fmt.Errorf("failed to write key PEM: %w", err)
+	}
+
+	// Restrict key file permissions
+	if err := os.Chmod(keyPath, 0600); err != nil {
+		return fmt.Errorf("failed to set key file permissions: %w", err)
+	}
+
+	return nil
+}