diff --git a/changelog/unreleased/set-service-transport.md b/changelog/unreleased/set-service-transport.md
new file mode 100644
index 00000000000..48b6346c373
--- /dev/null
+++ b/changelog/unreleased/set-service-transport.md
@@ -0,0 +1,6 @@
+Enhancement: We now set the configured protocol transport for service metadata
+
+This allows using `dns` or `unix` as the grpc protocol for services. Requires reva changes to have an effect
+
+https://github.com/owncloud/ocis/pull/9490
+https://github.com/cs3org/reva/pull/4744
\ No newline at end of file
diff --git a/ocis-pkg/registry/service.go b/ocis-pkg/registry/service.go
index da80a891223..c527f6f82a1 100644
--- a/ocis-pkg/registry/service.go
+++ b/ocis-pkg/registry/service.go
@@ -8,9 +8,10 @@ import (
 
 	mRegistry "go-micro.dev/v4/registry"
 	"go-micro.dev/v4/util/addr"
+	maddr "go-micro.dev/v4/util/addr"
 )
 
-func BuildGRPCService(serviceID, uuid, address string, version string) *mRegistry.Service {
+func BuildGRPCService(serviceID, uuid, transport, address string, version string) *mRegistry.Service {
 	var host string
 	var port int
 
@@ -22,20 +23,25 @@ func BuildGRPCService(serviceID, uuid, address string, version string) *mRegistr
 		host = parts[0]
 	}
 
-	addr, err := addr.Extract(host)
-	if err != nil {
-		addr = host
+	addr := host
+	if transport != "unix" {
+		var err error
+		addr, err = maddr.Extract(host)
+		if err != nil {
+			addr = host
+		}
+		addr = net.JoinHostPort(addr, fmt.Sprint(port))
 	}
 
 	node := &mRegistry.Node{
 		Id:       serviceID + "-" + uuid,
-		Address:  net.JoinHostPort(addr, fmt.Sprint(port)),
+		Address:  addr,
 		Metadata: make(map[string]string),
 	}
 
 	node.Metadata["registry"] = GetRegistry().String()
 	node.Metadata["server"] = "grpc"
-	node.Metadata["transport"] = "grpc"
+	node.Metadata["transport"] = transport
 	node.Metadata["protocol"] = "grpc"
 
 	return &mRegistry.Service{
diff --git a/services/app-provider/pkg/command/server.go b/services/app-provider/pkg/command/server.go
index 6259e7b8498..156fc970988 100644
--- a/services/app-provider/pkg/command/server.go
+++ b/services/app-provider/pkg/command/server.go
@@ -82,7 +82,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/app-registry/pkg/command/server.go b/services/app-registry/pkg/command/server.go
index 54bf5241035..6e73578c7aa 100644
--- a/services/app-registry/pkg/command/server.go
+++ b/services/app-registry/pkg/command/server.go
@@ -77,7 +77,7 @@ func Server(cfg *config.Config) *cli.Command {
 				cancel()
 			})
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/auth-basic/pkg/command/server.go b/services/auth-basic/pkg/command/server.go
index 3a7aaf312a7..8da469c7174 100644
--- a/services/auth-basic/pkg/command/server.go
+++ b/services/auth-basic/pkg/command/server.go
@@ -95,7 +95,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/auth-bearer/pkg/command/server.go b/services/auth-bearer/pkg/command/server.go
index 5646f639914..1f5bc479d1e 100644
--- a/services/auth-bearer/pkg/command/server.go
+++ b/services/auth-bearer/pkg/command/server.go
@@ -82,7 +82,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/auth-machine/pkg/command/server.go b/services/auth-machine/pkg/command/server.go
index e19fb45f69b..e0765a4ddb5 100644
--- a/services/auth-machine/pkg/command/server.go
+++ b/services/auth-machine/pkg/command/server.go
@@ -82,7 +82,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/auth-service/pkg/command/server.go b/services/auth-service/pkg/command/server.go
index 565f6757476..b9e46014266 100644
--- a/services/auth-service/pkg/command/server.go
+++ b/services/auth-service/pkg/command/server.go
@@ -83,7 +83,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/collaboration/pkg/config/defaults/defaultconfig.go b/services/collaboration/pkg/config/defaults/defaultconfig.go
index 1fd0e4e7189..3c0e64165e4 100644
--- a/services/collaboration/pkg/config/defaults/defaultconfig.go
+++ b/services/collaboration/pkg/config/defaults/defaultconfig.go
@@ -29,6 +29,7 @@ func DefaultConfig() *config.Config {
 		},
 		GRPC: config.GRPC{
 			Addr:      "127.0.0.1:9301",
+			Protocol:  "tcp",
 			Namespace: "com.owncloud.api",
 		},
 		HTTP: config.HTTP{
diff --git a/services/collaboration/pkg/config/grpc.go b/services/collaboration/pkg/config/grpc.go
index cf66901b724..d52d16228de 100644
--- a/services/collaboration/pkg/config/grpc.go
+++ b/services/collaboration/pkg/config/grpc.go
@@ -2,6 +2,8 @@ package config
 
 // GRPC defines the available grpc configuration.
 type GRPC struct {
-	Addr      string `yaml:"addr" env:"COLLABORATION_GRPC_ADDR" desc:"The bind address of the GRPC service." introductionVersion:"6.0.0"`
+	Addr     string `yaml:"addr" env:"COLLABORATION_GRPC_ADDR" desc:"The bind address of the GRPC service." introductionVersion:"6.0.0"`
+	Protocol string `yaml:"protocol" env:"COLLABORATION_GRPC_PROTOCOL" desc:"The transport protocol of the GRPC service." introductionVersion:"%%NEXT%%"`
+
 	Namespace string `yaml:"-"`
 }
diff --git a/services/collaboration/pkg/helpers/registration.go b/services/collaboration/pkg/helpers/registration.go
index c4967dac7d2..06c1b0d8053 100644
--- a/services/collaboration/pkg/helpers/registration.go
+++ b/services/collaboration/pkg/helpers/registration.go
@@ -19,7 +19,7 @@ import (
 // There are no explicit requirements for the context, and it will be passed
 // without changes to the underlying RegisterService method.
 func RegisterOcisService(ctx context.Context, cfg *config.Config, logger log.Logger) error {
-	svc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name+"."+cfg.App.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+	svc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name+"."+cfg.App.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 	return registry.RegisterService(ctx, svc, logger)
 }
 
diff --git a/services/gateway/pkg/command/server.go b/services/gateway/pkg/command/server.go
index ebbc7f7eb4a..ad574cbfdf5 100644
--- a/services/gateway/pkg/command/server.go
+++ b/services/gateway/pkg/command/server.go
@@ -77,7 +77,7 @@ func Server(cfg *config.Config) *cli.Command {
 				cancel()
 			})
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/graph/pkg/service/v0/graph_suite_test.go b/services/graph/pkg/service/v0/graph_suite_test.go
index 70dfcce1450..4234d829f9d 100644
--- a/services/graph/pkg/service/v0/graph_suite_test.go
+++ b/services/graph/pkg/service/v0/graph_suite_test.go
@@ -12,7 +12,7 @@ import (
 
 func init() {
 	r := registry.GetRegistry(registry.Inmemory())
-	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "")
+	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "", "")
 	service.Nodes = []*mRegistry.Node{{
 		Address: "any",
 	}}
diff --git a/services/groups/pkg/command/server.go b/services/groups/pkg/command/server.go
index 6690ebbb118..76ae1f49fe3 100644
--- a/services/groups/pkg/command/server.go
+++ b/services/groups/pkg/command/server.go
@@ -95,7 +95,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/notifications/pkg/service/notification_suite_test.go b/services/notifications/pkg/service/notification_suite_test.go
index 7f282054fb6..5b03187c1e3 100644
--- a/services/notifications/pkg/service/notification_suite_test.go
+++ b/services/notifications/pkg/service/notification_suite_test.go
@@ -12,7 +12,7 @@ import (
 
 func init() {
 	r := registry.GetRegistry(registry.Inmemory())
-	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "")
+	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "", "")
 	service.Nodes = []*mRegistry.Node{{
 		Address: "any",
 	}}
diff --git a/services/ocm/pkg/command/server.go b/services/ocm/pkg/command/server.go
index 1025d1ce735..d3b49cfdb5b 100644
--- a/services/ocm/pkg/command/server.go
+++ b/services/ocm/pkg/command/server.go
@@ -83,7 +83,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/search/pkg/search/search_suite_test.go b/services/search/pkg/search/search_suite_test.go
index 9422179fc53..22d772146aa 100644
--- a/services/search/pkg/search/search_suite_test.go
+++ b/services/search/pkg/search/search_suite_test.go
@@ -12,7 +12,7 @@ import (
 
 func init() {
 	r := registry.GetRegistry(registry.Inmemory())
-	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "")
+	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "", "")
 	service.Nodes = []*mRegistry.Node{{
 		Address: "any",
 	}}
diff --git a/services/sharing/pkg/command/server.go b/services/sharing/pkg/command/server.go
index c0a89bfb974..a1e60957f4d 100644
--- a/services/sharing/pkg/command/server.go
+++ b/services/sharing/pkg/command/server.go
@@ -99,7 +99,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/storage-publiclink/pkg/command/server.go b/services/storage-publiclink/pkg/command/server.go
index b0829d4728c..7173f4a5c5f 100644
--- a/services/storage-publiclink/pkg/command/server.go
+++ b/services/storage-publiclink/pkg/command/server.go
@@ -82,7 +82,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/storage-shares/pkg/command/server.go b/services/storage-shares/pkg/command/server.go
index d7c186a1f12..5712a9a8a7f 100644
--- a/services/storage-shares/pkg/command/server.go
+++ b/services/storage-shares/pkg/command/server.go
@@ -82,7 +82,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/storage-system/pkg/command/server.go b/services/storage-system/pkg/command/server.go
index 5424a456e9e..0d4e05e0540 100644
--- a/services/storage-system/pkg/command/server.go
+++ b/services/storage-system/pkg/command/server.go
@@ -82,7 +82,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/storage-users/pkg/command/server.go b/services/storage-users/pkg/command/server.go
index 8a13bc78e55..fecf65338db 100644
--- a/services/storage-users/pkg/command/server.go
+++ b/services/storage-users/pkg/command/server.go
@@ -93,7 +93,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}
diff --git a/services/storage-users/pkg/task/task_suite_test.go b/services/storage-users/pkg/task/task_suite_test.go
index ac0c8a44b9d..ac5e269876d 100644
--- a/services/storage-users/pkg/task/task_suite_test.go
+++ b/services/storage-users/pkg/task/task_suite_test.go
@@ -12,7 +12,7 @@ import (
 
 func init() {
 	r := registry.GetRegistry(registry.Inmemory())
-	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "")
+	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "", "")
 	service.Nodes = []*mRegistry.Node{{
 		Address: "any",
 	}}
diff --git a/services/userlog/pkg/service/service_suit_test.go b/services/userlog/pkg/service/service_suit_test.go
index 9da9654d4e9..81a91c123c4 100644
--- a/services/userlog/pkg/service/service_suit_test.go
+++ b/services/userlog/pkg/service/service_suit_test.go
@@ -12,7 +12,7 @@ import (
 
 func init() {
 	r := registry.GetRegistry(registry.Inmemory())
-	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "")
+	service := registry.BuildGRPCService("com.owncloud.api.gateway", "", "", "", "")
 	service.Nodes = []*mRegistry.Node{{
 		Address: "any",
 	}}
diff --git a/services/users/pkg/command/server.go b/services/users/pkg/command/server.go
index 100dea31b7b..1fa8e497e83 100644
--- a/services/users/pkg/command/server.go
+++ b/services/users/pkg/command/server.go
@@ -95,7 +95,7 @@ func Server(cfg *config.Config) *cli.Command {
 				sync.Trap(&gr, cancel)
 			}
 
-			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Protocol, cfg.GRPC.Addr, version.GetString())
 			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
 				logger.Fatal().Err(err).Msg("failed to register the grpc service")
 			}