diff --git a/examples/basic.rs b/examples/basic.rs
index 43e2bf4cd..0650a078c 100644
--- a/examples/basic.rs
+++ b/examples/basic.rs
@@ -20,8 +20,7 @@ use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
 use tokio_io::{AsyncRead, AsyncWrite};
 use tokio_openssl::SslAcceptorExt;
 
-use actix_net::service::{IntoNewService, NewServiceExt};
-use actix_net::Server;
+use actix_net::{IntoNewService, NewService, Server};
 
 /// Simple logger service, it just prints fact of the new connections
 fn logger<T: AsyncRead + AsyncWrite + fmt::Debug>(
@@ -90,7 +89,7 @@ fn main() {
             Ok::<_, io::Error>(ServiceState { num: num.clone() })
         }));
 
-    Server::new().bind("0.0.0.0:8443", srv).unwrap().start();
+    Server::default().bind("0.0.0.0:8443", srv).unwrap().start();
 
     sys.run();
 }
diff --git a/examples/ssl.rs b/examples/ssl.rs
index 5feb37c3b..5d974f726 100644
--- a/examples/ssl.rs
+++ b/examples/ssl.rs
@@ -15,8 +15,7 @@ use futures::{future, Future};
 use openssl::ssl::{SslAcceptor, SslFiletype, SslMethod};
 use tokio_io::{AsyncRead, AsyncWrite};
 
-use actix_net::service::NewServiceExt;
-use actix_net::{ssl, Server};
+use actix_net::{ssl, NewService, Server};
 
 #[derive(Debug)]
 struct ServiceState {
@@ -24,7 +23,7 @@ struct ServiceState {
 }
 
 fn service<T: AsyncRead + AsyncWrite>(
-    st: &mut ServiceState, stream: T,
+    st: &mut ServiceState, _: T,
 ) -> impl Future<Item = (), Error = io::Error> {
     let num = st.num.fetch_add(1, Ordering::Relaxed);
     println!("got ssl connection {:?}", num);
@@ -50,7 +49,7 @@ fn main() {
         Ok::<_, io::Error>(ServiceState { num: num.clone() })
     }));
 
-    Server::new().bind("0.0.0.0:8443", srv).unwrap().start();
+    Server::default().bind("0.0.0.0:8443", srv).unwrap().start();
 
     sys.run();
 }
diff --git a/src/lib.rs b/src/lib.rs
index b59065b31..9ef55abbc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -65,16 +65,20 @@ use bytes::{BufMut, BytesMut};
 use futures::{Async, Poll};
 use tokio_io::{AsyncRead, AsyncWrite};
 
+pub use tower_service::Service;
+
 pub(crate) mod accept;
 mod extensions;
 mod server;
+pub mod server_config;
 mod server_service;
 pub mod service;
 pub mod ssl;
 mod worker;
 
 pub use self::server::{ConnectionRateTag, ConnectionTag, Connections, Server};
-pub use service::{IntoNewService, IntoService};
+pub use server_config::Config;
+pub use service::{IntoNewService, IntoService, NewService};
 
 pub use extensions::Extensions;
 
diff --git a/src/server.rs b/src/server.rs
index 1224de115..6795471d0 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -10,7 +10,6 @@ use futures::{Future, Sink, Stream};
 use net2::TcpBuilder;
 use num_cpus;
 use tokio_tcp::TcpStream;
-use tower_service::NewService;
 
 use actix::{
     actors::signal, fut, Actor, ActorFuture, Addr, Arbiter, AsyncContext, Context, Handler,
@@ -18,8 +17,9 @@ use actix::{
 };
 
 use super::accept::{AcceptLoop, AcceptNotify, Command};
+use super::server_config::{Config, ServerConfig};
 use super::server_service::{ServerNewService, ServerServiceFactory};
-use super::service::IntoNewService;
+use super::service::{IntoNewService, NewService};
 use super::worker::{Conn, StopWorker, Worker, WorkerClient};
 use super::{PauseServer, ResumeServer, StopServer, Token};
 
@@ -28,10 +28,11 @@ pub(crate) enum ServerCommand {
 }
 
 /// Server
-pub struct Server {
+pub struct Server<C = ServerConfig> {
+    config: C,
     threads: usize,
     workers: Vec<(usize, Addr<Worker>)>,
-    services: Vec<Box<ServerServiceFactory + Send>>,
+    services: Vec<Box<ServerServiceFactory<C> + Send>>,
     sockets: Vec<(Token, net::TcpListener)>,
     accept: AcceptLoop,
     exit: bool,
@@ -42,16 +43,17 @@ pub struct Server {
     maxconnrate: usize,
 }
 
-impl Default for Server {
+impl Default for Server<ServerConfig> {
     fn default() -> Self {
-        Self::new()
+        Self::new(ServerConfig::default())
     }
 }
 
-impl Server {
+impl<C: Config> Server<C> {
     /// Create new Server instance
-    pub fn new() -> Server {
+    pub fn new(config: C) -> Server<C> {
         Server {
+            config,
             threads: num_cpus::get(),
             workers: Vec::new(),
             services: Vec::new(),
@@ -81,7 +83,10 @@ impl Server {
     /// reached for each worker.
     ///
     /// By default max connections is set to a 100k.
-    pub fn maxconn(mut self, num: usize) -> Self {
+    pub fn maxconn(mut self, num: usize) -> Self
+    where
+        C: AsMut<Connections>,
+    {
         self.maxconn = num;
         self
     }
@@ -135,7 +140,7 @@ impl Server {
     where
         U: net::ToSocketAddrs,
         T: IntoNewService<N> + Clone,
-        N: NewService<Request = TcpStream, Response = (), InitError = io::Error>
+        N: NewService<Request = TcpStream, Response = (), Config = C, InitError = io::Error>
             + Clone
             + Send
             + 'static,
@@ -155,7 +160,7 @@ impl Server {
     pub fn listen<T, N>(mut self, lst: net::TcpListener, srv: T) -> Self
     where
         T: IntoNewService<N>,
-        N: NewService<Request = TcpStream, Response = (), InitError = io::Error>
+        N: NewService<Request = TcpStream, Response = (), Config = C, InitError = io::Error>
             + Clone
             + Send
             + 'static,
@@ -164,8 +169,10 @@ impl Server {
         N::Error: fmt::Display,
     {
         let token = Token(self.services.len());
-        self.services
-            .push(ServerNewService::create(srv.into_new_service()));
+        self.services.push(ServerNewService::create(
+            srv.into_new_service(),
+            self.config.clone(),
+        ));
         self.sockets.push((token, lst));
         self
     }
@@ -199,7 +206,7 @@ impl Server {
     }
 
     /// Starts Server Actor and returns its address
-    pub fn start(mut self) -> Addr<Server> {
+    pub fn start(mut self) -> Addr<Server<C>> {
         if self.sockets.is_empty() {
             panic!("Service should have at least one bound socket");
         } else {
@@ -251,7 +258,7 @@ impl Server {
         let (tx, rx) = unbounded::<Conn>();
         let conns = Connections::new(notify, self.maxconn, self.maxconnrate);
         let worker = WorkerClient::new(idx, tx, conns.clone());
-        let services: Vec<Box<ServerServiceFactory + Send>> =
+        let services: Vec<Box<ServerServiceFactory<C> + Send>> =
             self.services.iter().map(|v| v.clone_factory()).collect();
 
         let addr = Arbiter::start(move |ctx: &mut Context<_>| {
@@ -263,14 +270,14 @@ impl Server {
     }
 }
 
-impl Actor for Server {
+impl<C: Config> Actor for Server<C> {
     type Context = Context<Self>;
 }
 
 /// Signals support
 /// Handle `SIGINT`, `SIGTERM`, `SIGQUIT` signals and stop actix system
 /// message to `System` actor.
-impl Handler<signal::Signal> for Server {
+impl<C: Config> Handler<signal::Signal> for Server<C> {
     type Result = ();
 
     fn handle(&mut self, msg: signal::Signal, ctx: &mut Context<Self>) {
@@ -295,7 +302,7 @@ impl Handler<signal::Signal> for Server {
     }
 }
 
-impl Handler<PauseServer> for Server {
+impl<C: Config> Handler<PauseServer> for Server<C> {
     type Result = ();
 
     fn handle(&mut self, _: PauseServer, _: &mut Context<Self>) {
@@ -303,7 +310,7 @@ impl Handler<PauseServer> for Server {
     }
 }
 
-impl Handler<ResumeServer> for Server {
+impl<C: Config> Handler<ResumeServer> for Server<C> {
     type Result = ();
 
     fn handle(&mut self, _: ResumeServer, _: &mut Context<Self>) {
@@ -311,7 +318,7 @@ impl Handler<ResumeServer> for Server {
     }
 }
 
-impl Handler<StopServer> for Server {
+impl<C: Config> Handler<StopServer> for Server<C> {
     type Result = Response<(), ()>;
 
     fn handle(&mut self, msg: StopServer, ctx: &mut Context<Self>) -> Self::Result {
@@ -366,7 +373,7 @@ impl Handler<StopServer> for Server {
 }
 
 /// Commands from accept threads
-impl StreamHandler<ServerCommand, ()> for Server {
+impl<C: Config> StreamHandler<ServerCommand, ()> for Server<C> {
     fn finished(&mut self, _: &mut Context<Self>) {}
 
     fn handle(&mut self, msg: ServerCommand, _: &mut Context<Self>) {
diff --git a/src/server_config.rs b/src/server_config.rs
new file mode 100644
index 000000000..199f71232
--- /dev/null
+++ b/src/server_config.rs
@@ -0,0 +1,81 @@
+//! Default server config
+use std::sync::{atomic::AtomicUsize, Arc};
+
+pub trait Config: Send + Clone + Default + 'static {
+    fn fork(&self) -> Self;
+}
+
+#[derive(Clone, Default)]
+pub struct ServerConfig {
+    conn: ConnectionsConfig,
+    ssl: SslConfig,
+}
+
+impl Config for ServerConfig {
+    fn fork(&self) -> Self {
+        ServerConfig {
+            conn: self.conn.fork(),
+            ssl: self.ssl.fork(),
+        }
+    }
+}
+
+impl AsRef<ConnectionsConfig> for ServerConfig {
+    fn as_ref(&self) -> &ConnectionsConfig {
+        &self.conn
+    }
+}
+
+impl AsRef<SslConfig> for ServerConfig {
+    fn as_ref(&self) -> &SslConfig {
+        &self.ssl
+    }
+}
+
+#[derive(Clone)]
+pub struct ConnectionsConfig {
+    max_connections: usize,
+    num_connections: Arc<AtomicUsize>,
+}
+
+impl Default for ConnectionsConfig {
+    fn default() -> Self {
+        ConnectionsConfig {
+            max_connections: 102_400,
+            num_connections: Arc::new(AtomicUsize::new(0)),
+        }
+    }
+}
+
+impl Config for ConnectionsConfig {
+    fn fork(&self) -> Self {
+        ConnectionsConfig {
+            max_connections: self.max_connections,
+            num_connections: Arc::new(AtomicUsize::new(0)),
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct SslConfig {
+    max_handshakes: usize,
+    num: Arc<AtomicUsize>,
+}
+
+impl Default for SslConfig {
+    fn default() -> Self {
+        SslConfig {
+            max_handshakes: 256,
+            num: Arc::new(AtomicUsize::new(0)),
+        }
+    }
+}
+
+impl Config for SslConfig {
+    fn fork(&self) -> Self {
+        SslConfig {
+            max_handshakes: self.max_handshakes,
+            num: Arc::new(AtomicUsize::new(0)),
+        }
+    }
+}
diff --git a/src/server_service.rs b/src/server_service.rs
index 973a9c3da..15083a6a0 100644
--- a/src/server_service.rs
+++ b/src/server_service.rs
@@ -7,7 +7,8 @@ use std::{fmt, io, net};
 use futures::{future, Future, Poll};
 use tokio_reactor::Handle;
 use tokio_tcp::TcpStream;
-use tower_service::{NewService, Service};
+
+use super::{Config, NewService, Service};
 
 pub(crate) type BoxedServerService = Box<
     Service<
@@ -55,14 +56,15 @@ where
     }
 }
 
-pub(crate) struct ServerNewService<T> {
+pub(crate) struct ServerNewService<T, C> {
     inner: T,
+    config: C,
     counter: Arc<AtomicUsize>,
 }
 
-impl<T> ServerNewService<T>
+impl<T, C: Config> ServerNewService<T, C>
 where
-    T: NewService<Request = TcpStream, Response = (), InitError = io::Error>
+    T: NewService<Request = TcpStream, Response = (), Config = C, InitError = io::Error>
         + Clone
         + Send
         + 'static,
@@ -70,25 +72,26 @@ where
     T::Future: 'static,
     T::Error: fmt::Display,
 {
-    pub(crate) fn create(inner: T) -> Box<ServerServiceFactory + Send> {
+    pub(crate) fn create(inner: T, config: C) -> Box<ServerServiceFactory<C> + Send> {
         Box::new(Self {
             inner,
+            config,
             counter: Arc::new(AtomicUsize::new(0)),
         })
     }
 }
 
-pub trait ServerServiceFactory {
+pub trait ServerServiceFactory<C> {
     fn counter(&self) -> Arc<AtomicUsize>;
 
-    fn clone_factory(&self) -> Box<ServerServiceFactory + Send>;
+    fn clone_factory(&self) -> Box<ServerServiceFactory<C> + Send>;
 
     fn create(&self) -> Box<Future<Item = BoxedServerService, Error = ()>>;
 }
 
-impl<T> ServerServiceFactory for ServerNewService<T>
+impl<T, C: Config> ServerServiceFactory<C> for ServerNewService<T, C>
 where
-    T: NewService<Request = TcpStream, Response = (), InitError = io::Error>
+    T: NewService<Request = TcpStream, Response = (), Config = C, InitError = io::Error>
         + Clone
         + Send
         + 'static,
@@ -100,28 +103,35 @@ where
         self.counter.clone()
     }
 
-    fn clone_factory(&self) -> Box<ServerServiceFactory + Send> {
+    fn clone_factory(&self) -> Box<ServerServiceFactory<C> + Send> {
         Box::new(Self {
             inner: self.inner.clone(),
+            config: self.config.fork(),
             counter: Arc::new(AtomicUsize::new(0)),
         })
     }
 
     fn create(&self) -> Box<Future<Item = BoxedServerService, Error = ()>> {
         let counter = self.counter.clone();
-        Box::new(self.inner.new_service().map_err(|_| ()).map(move |inner| {
-            let service: BoxedServerService = Box::new(ServerService { inner, counter });
-            service
-        }))
+        Box::new(
+            self.inner
+                .new_service(self.config.clone())
+                .map_err(|_| ())
+                .map(move |inner| {
+                    let service: BoxedServerService =
+                        Box::new(ServerService { inner, counter });
+                    service
+                }),
+        )
     }
 }
 
-impl ServerServiceFactory for Box<ServerServiceFactory> {
+impl<C> ServerServiceFactory<C> for Box<ServerServiceFactory<C>> {
     fn counter(&self) -> Arc<AtomicUsize> {
         self.as_ref().counter()
     }
 
-    fn clone_factory(&self) -> Box<ServerServiceFactory + Send> {
+    fn clone_factory(&self) -> Box<ServerServiceFactory<C> + Send> {
         self.as_ref().clone_factory()
     }
 
diff --git a/src/service.rs b/src/service.rs
index b854765a3..930b7bdaa 100644
--- a/src/service.rs
+++ b/src/service.rs
@@ -3,9 +3,44 @@ use std::marker;
 use std::rc::Rc;
 
 use futures::{future, future::FutureResult, Async, Future, IntoFuture, Poll};
-use tower_service::{NewService, Service};
+use tower_service::Service;
+
+/// Creates new `Service` values.
+///
+/// Acts as a service factory. This is useful for cases where new `Service`
+/// values must be produced. One case is a TCP servier listener. The listner
+/// accepts new TCP streams, obtains a new `Service` value using the
+/// `NewService` trait, and uses that new `Service` value to process inbound
+/// requests on that new TCP stream.
+pub trait NewService {
+    /// Requests handled by the service
+    type Request;
+
+    /// Responses given by the service
+    type Response;
+
+    /// Errors produced by the service
+    type Error;
+
+    /// The `Service` value created by this factory
+    type Service: Service<
+        Request = Self::Request,
+        Response = Self::Response,
+        Error = Self::Error,
+    >;
+
+    /// Pipeline configuration
+    type Config: Clone;
+
+    /// Errors produced while building a service.
+    type InitError;
+
+    /// The future of the `Service` instance.
+    type Future: Future<Item = Self::Service, Error = Self::InitError>;
+
+    /// Create and return a new service value asynchronously.
+    fn new_service(&self, Self::Config) -> Self::Future;
 
-pub trait NewServiceExt: NewService {
     fn and_then<F, B>(self, new_service: F) -> AndThenNewService<Self, B>
     where
         Self: Sized,
@@ -13,30 +48,7 @@ pub trait NewServiceExt: NewService {
         B: NewService<
             Request = Self::Response,
             Error = Self::Error,
-            InitError = Self::InitError,
-        >;
-
-    fn map_err<F, E>(self, f: F) -> MapErrNewService<Self, F, E>
-    where
-        Self: Sized,
-        F: Fn(Self::Error) -> E;
-
-    fn map_init_err<F, E>(self, f: F) -> MapInitErr<Self, F, E>
-    where
-        Self: Sized,
-        F: Fn(Self::InitError) -> E;
-}
-
-impl<T> NewServiceExt for T
-where
-    T: NewService,
-{
-    fn and_then<F, B>(self, new_service: F) -> AndThenNewService<Self, B>
-    where
-        F: IntoNewService<B>,
-        B: NewService<
-            Request = Self::Response,
-            Error = Self::Error,
+            Config = Self::Config,
             InitError = Self::InitError,
         >,
     {
@@ -45,6 +57,7 @@ where
 
     fn map_err<F, E>(self, f: F) -> MapErrNewService<Self, F, E>
     where
+        Self: Sized,
         F: Fn(Self::Error) -> E,
     {
         MapErrNewService::new(self, f)
@@ -150,7 +163,7 @@ where
     }
 }
 
-pub struct FnNewService<F, Req, Resp, Err, Fut>
+pub struct FnNewService<F, Req, Resp, Err, Fut, Cfg>
 where
     F: Fn(Req) -> Fut,
     Fut: IntoFuture<Item = Resp, Error = Err>,
@@ -159,9 +172,10 @@ where
     req: marker::PhantomData<Req>,
     resp: marker::PhantomData<Resp>,
     err: marker::PhantomData<Err>,
+    cfg: marker::PhantomData<Cfg>,
 }
 
-impl<F, Req, Resp, Err, Fut> FnNewService<F, Req, Resp, Err, Fut>
+impl<F, Req, Resp, Err, Fut, Cfg> FnNewService<F, Req, Resp, Err, Fut, Cfg>
 where
     F: Fn(Req) -> Fut + Clone,
     Fut: IntoFuture<Item = Resp, Error = Err>,
@@ -172,38 +186,43 @@ where
             req: marker::PhantomData,
             resp: marker::PhantomData,
             err: marker::PhantomData,
+            cfg: marker::PhantomData,
         }
     }
 }
 
-impl<F, Req, Resp, Err, Fut> NewService for FnNewService<F, Req, Resp, Err, Fut>
+impl<F, Req, Resp, Err, Fut, Cfg> NewService for FnNewService<F, Req, Resp, Err, Fut, Cfg>
 where
     F: Fn(Req) -> Fut + Clone,
     Fut: IntoFuture<Item = Resp, Error = Err>,
+    Cfg: Clone,
 {
     type Request = Req;
     type Response = Resp;
     type Error = Err;
     type Service = FnService<F, Req, Resp, Err, Fut>;
+    type Config = Cfg;
     type InitError = ();
     type Future = FutureResult<Self::Service, ()>;
 
-    fn new_service(&self) -> Self::Future {
+    fn new_service(&self, cfg: Cfg) -> Self::Future {
         future::ok(FnService::new(self.f.clone()))
     }
 }
 
-impl<F, Req, Resp, Err, Fut> IntoNewService<FnNewService<F, Req, Resp, Err, Fut>> for F
+impl<F, Req, Resp, Err, Fut, Cfg> IntoNewService<FnNewService<F, Req, Resp, Err, Fut, Cfg>>
+    for F
 where
     F: Fn(Req) -> Fut + Clone + 'static,
     Fut: IntoFuture<Item = Resp, Error = Err>,
+    Cfg: Clone,
 {
-    fn into_new_service(self) -> FnNewService<F, Req, Resp, Err, Fut> {
+    fn into_new_service(self) -> FnNewService<F, Req, Resp, Err, Fut, Cfg> {
         FnNewService::new(self)
     }
 }
 
-impl<F, Req, Resp, Err, Fut> Clone for FnNewService<F, Req, Resp, Err, Fut>
+impl<F, Req, Resp, Err, Fut, Cfg> Clone for FnNewService<F, Req, Resp, Err, Fut, Cfg>
 where
     F: Fn(Req) -> Fut + Clone,
     Fut: IntoFuture<Item = Resp, Error = Err>,
@@ -261,7 +280,7 @@ where
 }
 
 /// `NewService` for state and handler functions
-pub struct FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2> {
+pub struct FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg> {
     f: F1,
     state: F2,
     s: marker::PhantomData<S>,
@@ -271,10 +290,11 @@ pub struct FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2> {
     err2: marker::PhantomData<Err2>,
     fut1: marker::PhantomData<Fut1>,
     fut2: marker::PhantomData<Fut2>,
+    cfg: marker::PhantomData<Cfg>,
 }
 
-impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>
-    FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>
+impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg>
+    FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg>
 {
     fn new(f: F1, state: F2) -> Self {
         FnStateNewService {
@@ -287,12 +307,13 @@ impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>
             err2: marker::PhantomData,
             fut1: marker::PhantomData,
             fut2: marker::PhantomData,
+            cfg: marker::PhantomData,
         }
     }
 }
 
-impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2> NewService
-    for FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>
+impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg> NewService
+    for FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg>
 where
     S: 'static,
     F1: Fn(&mut S, Req) -> Fut1 + Clone + 'static,
@@ -303,15 +324,17 @@ where
     Resp: 'static,
     Err1: 'static,
     Err2: 'static,
+    Cfg: Clone,
 {
     type Request = Req;
     type Response = Resp;
     type Error = Err1;
     type Service = FnStateService<S, F1, Req, Resp, Err1, Fut1>;
+    type Config = Cfg;
     type InitError = Err2;
     type Future = Box<Future<Item = Self::Service, Error = Self::InitError>>;
 
-    fn new_service(&self) -> Self::Future {
+    fn new_service(&self, cfg: Cfg) -> Self::Future {
         let f = self.f.clone();
         Box::new(
             (self.state)()
@@ -321,8 +344,9 @@ where
     }
 }
 
-impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>
-    IntoNewService<FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>> for (F1, F2)
+impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg>
+    IntoNewService<FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg>>
+    for (F1, F2)
 where
     S: 'static,
     F1: Fn(&mut S, Req) -> Fut1 + Clone + 'static,
@@ -333,16 +357,17 @@ where
     Resp: 'static,
     Err1: 'static,
     Err2: 'static,
+    Cfg: Clone,
 {
     fn into_new_service(
         self,
-    ) -> FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2> {
+    ) -> FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg> {
         FnStateNewService::new(self.0, self.1)
     }
 }
 
-impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2> Clone
-    for FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2>
+impl<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg> Clone
+    for FnStateNewService<S, F1, F2, Req, Resp, Err1, Err2, Fut1, Fut2, Cfg>
 where
     F1: Fn(&mut S, Req) -> Fut1 + Clone + 'static,
     F2: Fn() -> Fut2 + Clone,
@@ -467,7 +492,12 @@ where
 
 impl<A, B> NewService for AndThenNewService<A, B>
 where
-    A: NewService<Response = B::Request, Error = B::Error, InitError = B::InitError>,
+    A: NewService<
+        Response = B::Request,
+        Error = B::Error,
+        Config = B::Config,
+        InitError = B::InitError,
+    >,
     B: NewService,
 {
     type Request = A::Request;
@@ -475,11 +505,12 @@ where
     type Error = A::Error;
     type Service = AndThen<A::Service, B::Service>;
 
+    type Config = A::Config;
     type InitError = A::InitError;
     type Future = AndThenNewServiceFuture<A, B>;
 
-    fn new_service(&self) -> Self::Future {
-        AndThenNewServiceFuture::new(self.a.new_service(), self.b.new_service())
+    fn new_service(&self, cfg: A::Config) -> Self::Future {
+        AndThenNewServiceFuture::new(self.a.new_service(cfg.clone()), self.b.new_service(cfg))
     }
 }
 
@@ -669,11 +700,12 @@ where
     type Error = E;
     type Service = MapErr<A::Service, F, E>;
 
+    type Config = A::Config;
     type InitError = A::InitError;
     type Future = MapErrNewServiceFuture<A, F, E>;
 
-    fn new_service(&self) -> Self::Future {
-        MapErrNewServiceFuture::new(self.a.new_service(), self.f.clone())
+    fn new_service(&self, cfg: Self::Config) -> Self::Future {
+        MapErrNewServiceFuture::new(self.a.new_service(cfg), self.f.clone())
     }
 }
 
@@ -759,11 +791,12 @@ where
     type Error = A::Error;
     type Service = A::Service;
 
+    type Config = A::Config;
     type InitError = E;
     type Future = MapInitErrFuture<A, F, E>;
 
-    fn new_service(&self) -> Self::Future {
-        MapInitErrFuture::new(self.a.new_service(), self.f.clone())
+    fn new_service(&self, cfg: Self::Config) -> Self::Future {
+        MapInitErrFuture::new(self.a.new_service(cfg), self.f.clone())
     }
 }
 
diff --git a/src/ssl/openssl.rs b/src/ssl/openssl.rs
index 512dcfb44..b6496b687 100644
--- a/src/ssl/openssl.rs
+++ b/src/ssl/openssl.rs
@@ -1,29 +1,31 @@
 use std::marker::PhantomData;
-use std::net::Shutdown;
-use std::{io, time};
+// use std::net::Shutdown;
+use std::io;
 
 use futures::{future, future::FutureResult, Async, Future, Poll};
 use openssl::ssl::{AlpnError, SslAcceptor, SslAcceptorBuilder};
 use tokio_io::{AsyncRead, AsyncWrite};
 use tokio_openssl::{AcceptAsync, SslAcceptorExt, SslStream};
-use tower_service::{NewService, Service};
 
-use {IntoNewService, IoStream};
+use server_config::SslConfig;
+use {NewService, Service};
 
 /// Support `SSL` connections via openssl package
 ///
 /// `alpn` feature enables `OpensslAcceptor` type
-pub struct OpensslService<T> {
+pub struct OpensslService<T, Cfg> {
     acceptor: SslAcceptor,
     io: PhantomData<T>,
+    cfg: PhantomData<Cfg>,
 }
 
-impl<T> OpensslService<T> {
+impl<T, Cfg> OpensslService<T, Cfg> {
     /// Create default `OpensslService`
     pub fn new(builder: SslAcceptorBuilder) -> Self {
         OpensslService {
             acceptor: builder.build(),
             io: PhantomData,
+            cfg: PhantomData,
         }
     }
 
@@ -44,27 +46,32 @@ impl<T> OpensslService<T> {
         Ok(OpensslService {
             acceptor: builder.build(),
             io: PhantomData,
+            cfg: PhantomData,
         })
     }
 }
-impl<T: AsyncRead + AsyncWrite> Clone for OpensslService<T> {
+impl<T: AsyncRead + AsyncWrite, Cfg> Clone for OpensslService<T, Cfg> {
     fn clone(&self) -> Self {
         Self {
             acceptor: self.acceptor.clone(),
             io: PhantomData,
+            cfg: PhantomData,
         }
     }
 }
 
-impl<T: AsyncRead + AsyncWrite> NewService for OpensslService<T> {
+impl<T: AsyncRead + AsyncWrite, Cfg: Clone + AsRef<SslConfig>> NewService
+    for OpensslService<T, Cfg>
+{
     type Request = T;
     type Response = SslStream<T>;
     type Error = io::Error;
     type Service = OpensslAcceptor<T>;
+    type Config = Cfg;
     type InitError = io::Error;
     type Future = FutureResult<Self::Service, io::Error>;
 
-    fn new_service(&self) -> Self::Future {
+    fn new_service(&self, _: Self::Config) -> Self::Future {
         future::ok(OpensslAcceptor {
             acceptor: self.acceptor.clone(),
             io: PhantomData,
diff --git a/src/worker.rs b/src/worker.rs
index 80bf13566..d23972148 100644
--- a/src/worker.rs
+++ b/src/worker.rs
@@ -69,8 +69,8 @@ impl Actor for Worker {
 }
 
 impl Worker {
-    pub(crate) fn new(
-        ctx: &mut Context<Self>, services: Vec<Box<ServerServiceFactory + Send>>,
+    pub(crate) fn new<C: 'static>(
+        ctx: &mut Context<Self>, services: Vec<Box<ServerServiceFactory<C> + Send>>,
     ) -> Self {
         let wrk = Worker {
             services: Vec::new(),