diff --git a/conf/app.ini b/conf/app.ini
index 7a8970cb4..dcc58c37f 100644
--- a/conf/app.ini
+++ b/conf/app.ini
@@ -1,4 +1,4 @@
-APP_NAME = Gogs - Go Git Service
+APP_NAME = Gogs: Go Git Service
 RUN_USER = lunny
 
 [repository]
diff --git a/gogs.go b/gogs.go
index 51ef3cf19..72a967f01 100644
--- a/gogs.go
+++ b/gogs.go
@@ -19,7 +19,7 @@ import (
 // Test that go1.1 tag above is included in builds. main.go refers to this definition.
 const go11tag = true
 
-const APP_VER = "0.0.0.0301"
+const APP_VER = "0.0.0.0303"
 
 func init() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
diff --git a/models/user.go b/models/user.go
index 086b02c82..820597380 100644
--- a/models/user.go
+++ b/models/user.go
@@ -34,7 +34,7 @@ const (
 type User struct {
 	Id            int64
 	LowerName     string `xorm:"unique not null"`
-	Name          string `xorm:"unique not null" valid:"Required"`
+	Name          string `xorm:"unique not null" valid:"AlphaDash;MinSize(5);MaxSize(30)"`
 	Email         string `xorm:"unique not null" valid:"Email"`
 	Passwd        string `xorm:"not null" valid:"MinSize(8)"`
 	LoginType     int
diff --git a/routers/user/user.go b/routers/user/user.go
index 5dc2c0b97..a66a7b5f9 100644
--- a/routers/user/user.go
+++ b/routers/user/user.go
@@ -14,6 +14,7 @@ import (
 	"github.com/gogits/validation"
 
 	"github.com/gogits/gogs/models"
+	"github.com/gogits/gogs/utils/auth"
 	"github.com/gogits/gogs/utils/log"
 )
 
@@ -50,18 +51,19 @@ func SignIn(req *http.Request, r render.Render, session sessions.Session) {
 }
 
 func SignUp(req *http.Request, r render.Render) {
+	data := map[string]interface{}{"Title": "Sign Up"}
 	if req.Method == "GET" {
-		r.HTML(200, "user/signup", map[string]interface{}{
-			"Title": "Sign Up",
-		})
+		r.HTML(200, "user/signup", data)
 		return
 	}
 
+	// Front-end should do double check of password.
 	u := &models.User{
 		Name:   req.FormValue("username"),
 		Email:  req.FormValue("email"),
 		Passwd: req.FormValue("passwd"),
 	}
+
 	valid := validation.Validation{}
 	ok, err := valid.Valid(u)
 	if err != nil {
@@ -69,23 +71,21 @@ func SignUp(req *http.Request, r render.Render) {
 		return
 	}
 	if !ok {
-		for _, err := range valid.Errors {
-			log.Warn("user.SignUp -> valid user: %v", err)
-		}
+		data["HasError"] = true
+		data["ErrorMsg"] = auth.GenerateErrorMsg(valid.Errors[0])
+		r.HTML(200, "user/signup", data)
 		return
 	}
 
-	err = models.RegisterUser(u)
-	if err != nil {
-		if err != nil {
-			r.HTML(200, "base/error", map[string]interface{}{
-				"Error": fmt.Sprintf("%v", err),
-			})
-			return
-		}
-	}
+	// err = models.RegisterUser(u)
+	// if err != nil {
+	// 	r.HTML(200, "base/error", map[string]interface{}{
+	// 		"Error": fmt.Sprintf("%v", err),
+	// 	})
+	// 	return
+	// }
 
-	r.Redirect("/")
+	// r.Redirect("/")
 }
 
 func Delete(req *http.Request, r render.Render) {
diff --git a/templates/base/head.tmpl b/templates/base/head.tmpl
index 4358bf02b..0294ba49a 100644
--- a/templates/base/head.tmpl
+++ b/templates/base/head.tmpl
@@ -16,7 +16,7 @@
 		<script src="/js/jquery-1.10.1.min.js"></script>
 		<script src="/js/bootstrap.min.js"></script>
         <script src="/js/app.js"></script>
-		<title>{{.Title}} | {{AppName}}</title>
+		<title>{{.Title}} - {{AppName}}</title>
 	</head>
 	<body>
 		<noscript>Please enable JavaScript in your browser!</noscript>
\ No newline at end of file
diff --git a/templates/base/navbar.tmpl b/templates/base/navbar.tmpl
index c4bd3a7a5..00112c03d 100644
--- a/templates/base/navbar.tmpl
+++ b/templates/base/navbar.tmpl
@@ -7,7 +7,7 @@
             <a class="gogs-nav-item" href="#">Help</a>
 
             <!--<a class="gogs-nav-item navbar-right navbar-btn btn btn-danger" href="/login/">Sign in</a>-->
-            <a id="gogs-nav-out" class="gogs-nav-item navbar-right navbar-btn btn btn-danger" href="/login/"><i class="fa fa-power-off fa-lg"></i></a>
+            <a id="gogs-nav-out" class="gogs-nav-item navbar-right navbar-btn btn btn-danger" href="/user/login/"><i class="fa fa-power-off fa-lg"></i></a>
             <a id="gogs-nav-avatar" class="gogs-nav-item navbar-right" href="/user/profile" data-toggle="tooltip" data-placement="bottom" title="Username">
                 <img src="http://1.gravatar.com/avatar/x?s=28" alt="user-avatar" title="username"/>
             </a>
diff --git a/templates/user/signin.tmpl b/templates/user/signin.tmpl
index 6527ae53f..f80b3199a 100644
--- a/templates/user/signin.tmpl
+++ b/templates/user/signin.tmpl
@@ -1,7 +1,7 @@
 {{template "base/head" .}}
 {{template "base/navbar" .}}
 <div class="container" id="gogs-body">
-    <form action="/user/signin" method="post" class="form-horizontal gogs-card" id="gogs-login-card">
+    <form action="/user/login" method="post" class="form-horizontal gogs-card" id="gogs-login-card">
         <h3>Log in</h3>{{if .Error}}
         <div class="form-group">
             <div class="col-md-6 col-md-offset-3 alert alert-danger text-center"><strong>{{.Error}}</strong></div>
@@ -26,7 +26,7 @@
         </div>
         <div class="form-group">
             <div class="col-md-offset-4 col-md-6">
-                <a href="/sign-up/">Need an account? Sign up free.</a>
+                <a href="/user/sign_up">Need an account? Sign up free.</a>
             </div>
         </div>
         <div class="form-group text-center" id="gogs-social-login">
diff --git a/templates/user/signup.tmpl b/templates/user/signup.tmpl
index 48e50a003..e8854e4ac 100644
--- a/templates/user/signup.tmpl
+++ b/templates/user/signup.tmpl
@@ -1,8 +1,11 @@
 {{template "base/head" .}}
 {{template "base/navbar" .}}
 <div class="container" id="gogs-body">
-	<form action="/user/signup" method="post" class="form-horizontal gogs-card" id="gogs-login-card">
+	<form action="/user/sign_up" method="post" class="form-horizontal gogs-card" id="gogs-login-card">
         <h3>Sign Up</h3>
+	{{if .HasError}}
+	<div class="alert alert-danger">{{.ErrorMsg}}</div>
+	{{end}}
 		<div class="form-group">
 			<label class="col-md-4 control-label">Username: </label>
 			<div class="col-md-6">
@@ -37,7 +40,7 @@
 
 	    <div class="form-group">
             <div class="col-md-offset-4 col-md-6">
-                <a href="/login/">Already have an account? Sign in now!</a>
+                <a href="/user/login">Already have an account? Sign in now!</a>
             </div>
 	    </div>
 	</form>
diff --git a/utils/auth/auth.go b/utils/auth/auth.go
new file mode 100644
index 000000000..109910340
--- /dev/null
+++ b/utils/auth/auth.go
@@ -0,0 +1,15 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package auth
+
+import (
+	"fmt"
+
+	"github.com/gogits/validation"
+)
+
+func GenerateErrorMsg(e *validation.ValidationError) string {
+	return fmt.Sprintf("%v", e.LimitValue)
+}
diff --git a/web.go b/web.go
index 4fca90a29..ca3b4fcf1 100644
--- a/web.go
+++ b/web.go
@@ -53,11 +53,9 @@ func runWeb(*cli.Context) {
 
 	// Routers.
 	m.Get("/", routers.Dashboard)
-	m.Any("/login", user.SignIn)
-	m.Any("/user/signin", user.SignIn)
+	m.Any("/user/login", user.SignIn)
 
-	m.Any("/sign-up", user.SignUp)
-	m.Any("/user/signup", user.SignUp)
+	m.Any("/user/sign_up", user.SignUp)
 
 	m.Get("/user/profile", user.Profile) // should be /username
 	m.Any("/user/delete", user.Delete)