http.Server log goes to Debug level.

server/server.go

@@ -8,6 +8,7 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
+	stdlog "log"
 	"net"
 	"net/http"
 	"net/url"
@@ -19,6 +20,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/Sirupsen/logrus"
 	"github.com/armon/go-proxyproto"
 	"github.com/containous/mux"
 	"github.com/containous/traefik/cluster"
@@ -46,7 +48,8 @@ import (
 )
 
 var (
-	oxyLogger = &OxyLogger{}
+	oxyLogger        = &OxyLogger{}
+	httpServerLogger = stdlog.New(log.WriterLevel(logrus.DebugLevel), "", 0)
 )
 
 // Server is the reverse-proxy/load-balancer engine
@@ -665,7 +668,7 @@ func (server *Server) prepareServer(entryPointName string, entryPoint *configura
 			SourceCheck: func(addr net.Addr) (bool, error) {
 				ip, ok := addr.(*net.TCPAddr)
 				if !ok {
-					return false, fmt.Errorf("Type error %v", addr)
+					return false, fmt.Errorf("type error %v", addr)
 				}
 				return IPs.ContainsIP(ip.IP)
 			},
@@ -679,6 +682,7 @@ func (server *Server) prepareServer(entryPointName string, entryPoint *configura
 			ReadTimeout:  readTimeout,
 			WriteTimeout: writeTimeout,
 			IdleTimeout:  idleTimeout,
+			ErrorLog:     httpServerLogger,
 		},
 		listener,
 		nil