diff --git a/README.md b/README.md
index 6807b212..417ced47 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,17 @@ context: 通过提供自由的模块，简洁的接口，动态的结构，让
 * 配置管理config
 * 缓存管理cache
 
+* Cap() Conf() Cmd()
+* Spawn() Begin() Start() Close()
+
+* Request[] History[] Session[]
+* detail[] option[] result[] append[]
+
+* Context Master Owner
+* Search() Action() Assert() Figure()
+
+
+
 ## 结构设计
 * 功能树
 * 权限树
diff --git a/etc/init.sh b/etc/init.sh
index 16510fb5..9f7bdbc2 100644
--- a/etc/init.sh
+++ b/etc/init.sh
@@ -1,26 +1,25 @@
 # ~lex source etc/lex.sh
 ~cli @lex lex
+~root aaa login root root
+# ~tcp listen ":9393"
+# ~tcp dial ":9393"
+~cli remote slaver listen ":9393" tcp
+# @debug on
 
 ~mdb open chat chat "chat:chat@/chat" mysql
+~web listen
+return
 
-~root aaa login root root
 
 @debug
 ~web spawn hi he ./
-~web listen
 route template /tpl ./usr/msg.tpl
 route script /php ./usr/msg.php
 route script /who who
 ~hi listen ./ ":9494"
 master nice
-pwd
-
-# ~aaa login shy shy
-
 return
 
 login shy shy
 
 
-~root cli
-remote slaver listen ":9393" tcp
diff --git a/src/context/aaa/aaa.go b/src/context/aaa/aaa.go
index 3d8b24d2..98f33b97 100644
--- a/src/context/aaa/aaa.go
+++ b/src/context/aaa/aaa.go
@@ -64,6 +64,10 @@ func (aaa *AAA) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
 		// }}}
 	}}
 
+	if m.Target == Index {
+		Pulse = m
+	}
+
 	aaa.Owner = aaa.Context
 	return aaa
 }
@@ -84,15 +88,17 @@ func (aaa *AAA) Start(m *ctx.Message, arg ...string) bool { // {{{
 
 // }}}
 func (aaa *AAA) Close(m *ctx.Message, arg ...string) bool { // {{{
-	if m.Target == aaa.Context && aaa.Owner == aaa.Context {
-		if m.Cap("username") != m.Conf("rootname") {
-			m.Log("info", nil, "logout %s", m.Cap("group"), m.Cap("username"))
-			m.Capi("nuser", -1)
-			return true
-		}
+	if aaa.Context == Index {
+		return false
 	}
 
-	return false
+	switch aaa.Context {
+	case m.Target:
+	case m.Source:
+	}
+
+	m.Log("info", nil, "%d logout %s", Pulse.Capi("nuser", -1)+1, m.Cap("username"))
+	return true
 }
 
 // }}}
@@ -136,7 +142,7 @@ var Index = &ctx.Context{Name: "aaa", Help: "认证中心",
 				if username == m.Conf("rootname") {
 					m.Set("detail", group, username).Target.Start(m)
 				} else if msg := m.Find(username); msg == nil {
-					m.Start(username, group, group, username)
+					m.Start(username, "认证用户", group, username)
 				} else {
 					m.Target = msg.Target
 				}
@@ -156,6 +162,7 @@ var Index = &ctx.Context{Name: "aaa", Help: "认证中心",
 		},
 	},
 }
+var Pulse *ctx.Message
 
 func init() {
 	aaa := &AAA{}
diff --git a/src/context/cli/cli.go b/src/context/cli/cli.go
index acedea8e..b9f8c467 100644
--- a/src/context/cli/cli.go
+++ b/src/context/cli/cli.go
@@ -25,6 +25,7 @@ type CLI struct {
 	out io.WriteCloser
 
 	alias map[string]string
+	back  string
 	next  string
 	exit  bool
 
@@ -83,6 +84,7 @@ func (cli *CLI) parse(m *ctx.Message) bool { // {{{
 			if len(cli.ins) > 1 {
 				return true
 			}
+			line, cli.back = cli.back, ""
 		}
 	} else {
 		line, cli.next = cli.next, ""
@@ -144,13 +146,12 @@ func (cli *CLI) parse(m *ctx.Message) bool { // {{{
 		msg.Add("detail", ls[i])
 	}
 
-	if msg.Wait = make(chan bool); msg.Target.Master != cli.Context {
-		msg.Post(msg.Target.Master)
-	} else {
-		msg.Post(cli.Context)
-	}
+	msg.Wait = make(chan bool)
+	msg.Post(cli.Context)
 
 	cli.echo(strings.Join(msg.Meta["result"], ""))
+	cli.target = msg.Target
+	cli.back = line
 	return true
 }
 
@@ -218,11 +219,11 @@ func (cli *CLI) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
 			m.Assert(lex != nil, "词法解析模块不存在")
 			if lex.Cap("status") != "start" {
 				lex.Target.Start(lex)
-				lex.Cmd("train", "'[^']*'")
-				lex.Cmd("train", "\"[^\"]*\"")
-				lex.Cmd("train", "[^ \t\n]+")
-				lex.Cmd("train", "[ \n\t]+", "void", "void")
-				lex.Cmd("train", "#[^\n]*\n", "void", "void")
+				m.Spawn(lex.Target).Cmd("train", "'[^']*'")
+				m.Spawn(lex.Target).Cmd("train", "\"[^\"]*\"")
+				m.Spawn(lex.Target).Cmd("train", "[^ \t\n]+")
+				m.Spawn(lex.Target).Cmd("train", "[ \n\t]+", "void", "void")
+				m.Spawn(lex.Target).Cmd("train", "#[^\n]*\n", "void", "void")
 			}
 			cli.lex = lex
 		}
@@ -285,6 +286,7 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 					cli.echo("password>")
 					fmt.Fscanln(cli.in, &password)
 
+					msg.Wait = make(chan bool)
 					if msg.Cmd("login", username, password) == "" {
 						cli.echo("登录失败")
 						m.Cmd("exit")
@@ -292,7 +294,15 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 						cli.in.Close()
 						return false
 					}
+
+					if cli.Sessions == nil {
+						cli.Sessions = make(map[string]*ctx.Message)
+					}
+					cli.Sessions["aaa"] = msg
+					msg.Name = "aaa"
 				}
+			} else {
+				m.Cap("stream", "stdout")
 			}
 
 			m.Log("info", nil, "slaver terminal")
@@ -319,7 +329,7 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 			msg.Set("append")
 			c := exec.Command(msg.Meta["detail"][0], msg.Meta["detail"][1:]...)
 
-			if len(cli.ins) == 1 {
+			if len(cli.ins) == 1 && cli.Context == Index {
 				c.Stdin, c.Stdout, c.Stderr = cli.in, cli.out, cli.out
 				msg.Assert(c.Start())
 				msg.Assert(c.Wait())
@@ -342,20 +352,21 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 
 // }}}
 func (cli *CLI) Close(m *ctx.Message, arg ...string) bool { // {{{
-	switch cli.Context {
-	case m.Source:
+	if cli.Context == Index {
 		return false
-
-	case m.Target:
-		m.Log("exit", nil, "release")
 	}
 
-	return false
+	switch cli.Context {
+	case m.Target:
+	case m.Source:
+	}
+
+	return true
 }
 
 // }}}
 
-var Index = &ctx.Context{Name: "cli", Help: "管理终端",
+var Index = &ctx.Context{Name: "cli", Help: "管理中心",
 	Caches: map[string]*ctx.Cache{
 		"nterm": &ctx.Cache{Name: "终端数量", Value: "0", Help: "已经运行的终端数量"},
 	},
@@ -437,7 +448,7 @@ var Index = &ctx.Context{Name: "cli", Help: "管理终端",
 		"open": &ctx.Command{Name: "open [master|slaver] [script [log]]", Help: "建立远程连接",
 			Options: map[string]string{"master": "主控终端", "slaver": "被控终端", "args": "启动参数", "io": "读写流"},
 			Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
-				m.Start(fmt.Sprintf("PTS%d", m.Capi("nterm")), "管理终端", arg...) // {{{
+				m.Start(fmt.Sprintf("PTS%d", m.Capi("nterm")), "管理终端", "void.sh") // {{{
 				return ""
 				// }}}
 			}},
diff --git a/src/context/ctx.go b/src/context/ctx.go
index 5765a499..4c1e871f 100644
--- a/src/context/ctx.go
+++ b/src/context/ctx.go
@@ -50,7 +50,6 @@ type Server interface {
 type Context struct {
 	Name string
 	Help string
-	Server
 
 	Caches   map[string]*Cache
 	Configs  map[string]*Config
@@ -61,16 +60,20 @@ type Context struct {
 	root     *Context
 
 	Sessions map[string]*Message
+	Historys []*Message
 	Requests []*Message
-	Master   *Context
 
 	messages chan *Message
 	message  *Message
+	Master   *Context
 
-	Group  string
-	Owner  *Context
 	Index  map[string]*Context
 	Groups map[string]*Context
+	Owner  *Context
+	Group  string
+
+	Pulse *Message
+	Server
 }
 
 func (c *Context) Register(s *Context, x Server) *Context { // {{{
@@ -125,6 +128,7 @@ func (c *Context) Begin(m *Message) *Context { // {{{
 	}
 
 	c.Requests = []*Message{m}
+	c.Historys = []*Message{m}
 
 	if c.Server != nil {
 		c.Server.Begin(m, m.Meta["detail"]...)
@@ -155,44 +159,53 @@ func (c *Context) Start(m *Message) bool { // {{{
 }
 
 // }}}
-func (c *Context) Close(m *Message, arg ...string) { // {{{
-	if c.Server == nil || c.Server.Close(m, arg...) {
-		m.Log("close", c, "%d %v", m.Capi("ncontext", -1)+1, arg)
+func (c *Context) Close(m *Message, arg ...string) bool { // {{{
+	m.Log("close", c, "close %v", arg)
+	if m.Target == c {
+		for k, v := range c.Sessions {
+			delete(c.Sessions, k)
+			if v.Target != c && !v.Target.Close(v, arg...) {
+				return false
+			}
+		}
+	}
+
+	if c.Server != nil && !c.Server.Close(m, arg...) {
+		return false
+	}
+
+	if m.Source == c {
+		if _, ok := c.Sessions[m.Name]; ok {
+			delete(c.Sessions, m.Name)
+			m.Target.Server.Close(m, arg...)
+		}
+	} else {
+		if m.Index == -1 {
+			return true
+		}
+	}
+
+	if len(c.Sessions) > 0 {
+		return false
+	}
+
+	if m.Cap("status") == "close" {
+		return true
+	}
+
+	if c.context != nil && len(c.contexts) == 0 {
+		m.Log("close", c, "%d context %v", m.root.Capi("ncontext", -1)+1, arg)
 		delete(c.context.contexts, c.Name)
 	}
-	return
 
-	if m.Target == c {
-		for _, v := range c.Sessions {
-			if v.Target != c {
-				v.Target.Close(v, arg...)
-			}
-		}
-
-		if c.Server != nil && c.Server.Close(m, arg...) {
-			if len(c.Sessions) == 0 && c.context != nil {
-				delete(c.context.contexts, c.Name)
-			}
-		}
-
-		for _, v := range c.Requests {
-			if v.Source != c {
-				v.Source.Close(v, arg...)
-			}
-		}
-	} else if m.Source == c {
-		delete(c.Sessions, m.Name)
-
-		if c.Server != nil && c.Server.Close(m, arg...) {
-			if len(c.Sessions) == 0 && c.context != nil {
-				delete(c.context.contexts, c.Name)
-			}
+	for _, v := range c.Requests {
+		if v.Source != c && v.Index != -1 {
+			v.Index = -1
+			v.Source.Close(v, arg...)
 		}
 	}
 
-	if len(c.Requests) == 0 {
-		m.Log(m.Cap("status", "stop"), c, "%d %v", m.root.Capi("nserver", -1), m.Meta["detail"])
-	}
+	return true
 }
 
 // }}}
@@ -602,6 +615,15 @@ func (m *Message) Reply(key ...string) *Message { // {{{
 	return msg
 }
 
+// }}}
+func (m *Message) Format() string { // {{{
+	name := fmt.Sprintf("%s->%s", m.Source.Name, m.Target.Name)
+	if m.Name != "" {
+		name = fmt.Sprintf("%s.%s->%s.%d", m.Source.Name, m.Name, m.Target.Name, m.Index)
+	}
+	return fmt.Sprintf("%d(%s): %s %v", m.code, name, m.time.Format("15:04:05"), m.Meta["detail"])
+}
+
 // }}}
 
 func (m *Message) BackTrace(hand func(m *Message) bool) { // {{{
@@ -616,6 +638,9 @@ func (m *Message) BackTrace(hand func(m *Message) bool) { // {{{
 
 // }}}
 func (m *Message) Travel(c *Context, hand func(m *Message) bool) { // {{{
+	if c == nil {
+		c = m.Target
+	}
 	target := m.Target
 
 	cs := []*Context{c}
@@ -856,10 +881,10 @@ func (m *Message) Exec(key string, arg ...string) string { // {{{
 						}
 					}
 
-					if c.Requests == nil {
-						c.Requests = make([]*Message, 0, 10)
+					if c.Historys == nil {
+						c.Historys = make([]*Message, 0, 10)
 					}
-					c.Requests = append(c.Requests, m)
+					c.Historys = append(c.Historys, m)
 				})
 
 				return m.Get("result")
@@ -902,6 +927,10 @@ func (m *Message) Deal(pre func(msg *Message, arg ...string) bool, post func(msg
 
 // }}}
 func (m *Message) Post(s *Context) string { // {{{
+	if s == nil {
+		s = m.Target.Master
+	}
+
 	m.Assert(s.messages != nil, s.Name+" 没有开启消息处理")
 
 	if s.messages <- m; m.Wait != nil {
@@ -1048,7 +1077,7 @@ func (m *Message) Cap(key string, arg ...string) string { // {{{
 
 // }}}
 
-var Index = &Context{Name: "ctx", Help: "根模块",
+var Index = &Context{Name: "ctx", Help: "元始模块",
 	Caches: map[string]*Cache{
 		"nserver":  &Cache{Name: "服务数量", Value: "0", Help: "显示已经启动运行模块的数量"},
 		"ncontext": &Cache{Name: "模块数量", Value: "0", Help: "显示功能树已经注册模块的数量"},
@@ -1164,68 +1193,67 @@ var Index = &Context{Name: "ctx", Help: "根模块",
 			return ""
 			// }}}
 		}},
-		"message": &Command{Name: "message [index|home] [order]", Help: "查看消息", Hand: func(m *Message, c *Context, key string, arg ...string) string {
+		"message": &Command{Name: "message code", Help: "查看消息", Hand: func(m *Message, c *Context, key string, arg ...string) string {
 			switch len(arg) { // {{{
 			case 0:
-				for k, v := range m.Target.Sessions {
-					if v.Name != "" {
-						m.Echo("%s %s.%s -> %s.%d: %s %v\n", k, v.Source.Name, v.Name, v.Target.Name, v.Index, v.time.Format("15:04:05"), v.Meta["detail"])
-					} else {
-						m.Echo("%s %s -> %s: %s %v\n", k, v.Source.Name, v.Target.Name, v.time.Format("15:04:05"), v.Meta["detail"])
-					}
-				}
-
+				m.Echo("\033[31mrequests:\033[0m\n")
 				for i, v := range m.Target.Requests {
-					if v.Name != "" {
-						m.Echo("%d %s.%s -> %s.%d: %s %v\n", i, v.Source.Name, v.Name, v.Target.Name, v.Index, v.time.Format("15:04:05"), v.Meta["detail"])
-					} else {
-						m.Echo("%d %s -> %s: %s %v\n", i, v.Source.Name, v.Target.Name, v.time.Format("15:04:05"), v.Meta["detail"])
-					}
+					m.Echo("%d %s\n", i, v.Format())
 					for i, v := range v.messages {
-						if v.Name != "" {
-							m.Echo("  %d %s.%s -> %s.%d: %s %v\n", i, v.Source.Name, v.Name, v.Target.Name, v.Index, v.time.Format("15:04:05"), v.Meta["detail"])
-						} else {
-							m.Echo("  %d %s -> %s: %s %v\n", i, v.Source.Name, v.Target.Name, v.time.Format("15:04:05"), v.Meta["detail"])
-						}
+						m.Echo("  %d %s\n", i, v.Format())
 					}
 				}
-			case 1, 2:
+
+				m.Echo("\033[32msessions:\033[0m\n")
+				for k, v := range m.Target.Sessions {
+					m.Echo("%s %s\n", k, v.Format())
+				}
+
+				m.Echo("\033[33mhistorys:\033[0m\n")
+				for i, v := range m.Target.Historys {
+					m.Echo("%d %s\n", i, v.Format())
+					for i, v := range v.messages {
+						m.Echo("  %d %s\n", i, v.Format())
+					}
+				}
+			case 1:
 				n, e := strconv.Atoi(arg[0])
-				v := m
-				if e == nil && 0 <= n && n < len(m.Target.Requests) {
-					v = m.Target.Requests[n]
-				} else {
-					v = m.Target.Sessions[arg[0]]
-				}
+				m.Assert(e)
 
-				if v != nil {
-					if len(arg) > 1 {
-						if n, e = strconv.Atoi(arg[1]); e == nil && 0 <= n && n < len(v.messages) {
-							v = v.messages[n]
+				ms := []*Message{m.root}
+				for i := 0; i < len(ms); i++ {
+					if ms[i].code == n {
+						if ms[i].message != nil {
+							m.Echo("message: %d\n", ms[i].message.code)
 						}
-					}
 
-					if v.Name != "" {
-						m.Echo("%s.%s -> %s.%d: %s %v\n", v.Source.Name, v.Name, v.Target.Name, v.Index, v.time.Format("15:04:05"), v.Meta["detail"])
-					} else {
-						m.Echo("%s -> %s: %s %v\n", v.Source.Name, v.Target.Name, v.time.Format("15:04:05"), v.Meta["detail"])
-					}
+						m.Echo("%s\n", ms[i].Format())
+						if len(ms[i].Meta["option"]) > 0 {
+							m.Echo("option: %v\n", ms[i].Meta["option"])
+						}
+						for _, k := range ms[i].Meta["option"] {
+							m.Echo("  %s: %v\n", k, ms[i].Meta[k])
+						}
 
-					if len(v.Meta["option"]) > 0 {
-						m.Echo("option:\n")
-					}
-					for _, k := range v.Meta["option"] {
-						m.Echo("  %s: %v\n", k, v.Meta[k])
-					}
-					if len(v.Meta["result"]) > 0 {
-						m.Echo("result: %v\n", v.Meta["result"])
-					}
-					if len(v.Meta["append"]) > 0 {
-						m.Echo("append:\n")
-					}
-					for _, k := range v.Meta["append"] {
-						m.Echo("  %s: %v\n", k, v.Meta[k])
+						if len(ms[i].Meta["result"]) > 0 {
+							m.Echo("result: %v\n", ms[i].Meta["result"])
+						}
+						if len(ms[i].Meta["append"]) > 0 {
+							m.Echo("append: %v\n", ms[i].Meta["append"])
+						}
+						for _, k := range ms[i].Meta["append"] {
+							m.Echo("  %s: %v\n", k, ms[i].Meta[k])
+						}
+
+						if len(ms[i].messages) > 0 {
+							m.Echo("messages: %d\n", len(ms[i].messages))
+						}
+						for _, v := range ms[i].messages {
+							m.Echo("  %s\n", v.Format())
+						}
+						break
 					}
+					ms = append(ms, ms[i].messages...)
 				}
 			}
 
@@ -1319,7 +1347,7 @@ var Index = &Context{Name: "ctx", Help: "根模块",
 							m.Echo("%s\n", target.Help)
 							return true
 						})
-					case len(arg) > 0:
+					case len(arg) > 0 && v != m:
 						v.Set("detail", arg...).Cmd()
 					}
 				}
@@ -1511,7 +1539,7 @@ var Index = &Context{Name: "ctx", Help: "根模块",
 						return all
 					})
 				case 2:
-					m.Conf(arg[0], arg[1])
+					m.Cap(arg[0], arg[1])
 				case 4:
 					m.Cap(arg[0], arg[1:]...)
 				}
@@ -1559,13 +1587,13 @@ func Start(args ...string) {
 
 	log.Println("\n\n")
 	Index.Group = "root"
-
 	Index.Owner = Index.contexts["aaa"]
 	Index.Master = Index.contexts["cli"]
 	for _, m := range Pulse.Search("") {
 		m.Target.root = Index
 		m.Target.Begin(m)
 	}
+	Index.Requests = append(Index.Requests, Pulse)
 	log.Println()
 
 	for _, m := range Pulse.Search(Pulse.Conf("start")) {
diff --git a/src/context/mdb/mdb.go b/src/context/mdb/mdb.go
index 0b50ca8f..be0de87d 100644
--- a/src/context/mdb/mdb.go
+++ b/src/context/mdb/mdb.go
@@ -59,19 +59,27 @@ func (mdb *MDB) Start(m *ctx.Message, arg ...string) bool { // {{{
 
 // }}}
 func (mdb *MDB) Close(m *ctx.Message, arg ...string) bool { // {{{
-	if mdb.DB != nil && m.Target == mdb.Context {
+	if mdb.Context == Index {
+		return false
+	}
+
+	switch mdb.Context {
+	case m.Target:
+	case m.Source:
+	}
+
+	if mdb.DB != nil {
 		m.Log("info", nil, "%d close %s %s", m.Capi("nsource", -1)+1, m.Cap("driver"), m.Cap("source"))
 		mdb.DB.Close()
 		mdb.DB = nil
-		return true
 	}
 
-	return false
+	return true
 }
 
 // }}}
 
-var Index = &ctx.Context{Name: "mdb", Help: "内存数据库",
+var Index = &ctx.Context{Name: "mdb", Help: "数据中心",
 	Caches: map[string]*ctx.Cache{
 		"nsource": &ctx.Cache{Name: "数据源数量", Value: "0", Help: "已打开数据库的数量"},
 	},
@@ -83,7 +91,7 @@ var Index = &ctx.Context{Name: "mdb", Help: "内存数据库",
 			m.Assert(len(arg) > 2, "缺少参数") // {{{
 			m.Master, m.Target = c, c
 			m.Cap("stream", m.Cap("nsource"))
-			m.Start(arg[0], arg[1], arg[2:]...)
+			m.Start(arg[0], "数据存储", arg[2:]...)
 			return ""
 			// }}}
 		}},
diff --git a/src/context/tcp/tcp.go b/src/context/tcp/tcp.go
index 3fc6855c..8f0912b6 100644
--- a/src/context/tcp/tcp.go
+++ b/src/context/tcp/tcp.go
@@ -20,14 +20,10 @@ func (tcp *TCP) Spawn(m *ctx.Message, c *ctx.Context, arg ...string) ctx.Server
 	c.Caches = map[string]*ctx.Cache{
 		"protocol": &ctx.Cache{Name: "protocol(tcp/tcp4/tcp6)", Value: m.Conf("protocol"), Help: "监听地址"},
 		"security": &ctx.Cache{Name: "security(true/false)", Value: m.Conf("security"), Help: "加密通信"},
-		"address":  &ctx.Cache{Name: "address", Value: arg[1], Help: "监听地址"},
+		"address":  &ctx.Cache{Name: "address", Value: "", Help: "监听地址"},
 	}
 	c.Configs = map[string]*ctx.Config{}
 
-	if len(arg) > 2 {
-		m.Cap("security", arg[2])
-	}
-
 	s := new(TCP)
 	s.Context = c
 	return s
@@ -36,53 +32,65 @@ func (tcp *TCP) Spawn(m *ctx.Message, c *ctx.Context, arg ...string) ctx.Server
 
 // }}}
 func (tcp *TCP) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
+	if m.Target == Index {
+		Pulse = m
+	}
+
 	return tcp
 }
 
 // }}}
 func (tcp *TCP) Start(m *ctx.Message, arg ...string) bool { // {{{
+	if len(arg) > 1 {
+		m.Cap("address", arg[1])
+	}
+	if len(arg) > 2 {
+		m.Cap("security", arg[2])
+	}
+
 	switch arg[0] {
 	case "dial":
 		c, e := net.Dial(m.Cap("protocol"), m.Cap("address"))
 		m.Assert(e)
 		tcp.Conn = c
+		m.Log("info", nil, "dial(%d) %v->%v", m.Capi("nclient", 1), tcp.LocalAddr(), tcp.RemoteAddr())
+		m.Cap("stream", fmt.Sprintf("%s->%s", tcp.LocalAddr(), tcp.RemoteAddr()))
 
-		m.Log("info", nil, "dial(%d) %v->%v", m.Capi("nclient"), c.LocalAddr(), c.RemoteAddr())
 		// m.Reply(c.LocalAddr().String()).Put("option", "io", c).Cmd("open")
 		return false
 	case "accept":
+		c, e := m.Data["io"].(net.Conn)
+		m.Assert(e)
+		tcp.Conn = c
+		m.Log("info", nil, "accept(%d) %v<-%v", m.Capi("nclient", 1), tcp.LocalAddr(), tcp.RemoteAddr())
+		m.Cap("stream", fmt.Sprintf("%s<-%s", tcp.LocalAddr(), tcp.RemoteAddr()))
+
+		s, e := m.Data["source"].(*ctx.Context)
+		m.Assert(e)
+		msg := m.Spawn(s).Put("option", "io", c)
+		msg.Cmd("open")
+		msg.Cap("stream", tcp.RemoteAddr().String())
+
+		if tcp.Sessions == nil {
+			tcp.Sessions = make(map[string]*ctx.Message)
+		}
+		tcp.Sessions["open"] = msg
+		msg.Name = "open"
+
+		// m.Reply(c.RemoteAddr().String())
 		return false
 	}
 
 	l, e := net.Listen(m.Cap("protocol"), m.Cap("address"))
 	m.Assert(e)
 	tcp.Listener = l
-
-	m.Log("info", nil, "listen(%d) %v", m.Capi("nlisten"), l.Addr())
+	m.Log("info", nil, "listen(%d) %v", m.Capi("nlisten", 1), l.Addr())
+	m.Cap("stream", fmt.Sprintf("%s", l.Addr()))
 
 	for {
 		c, e := l.Accept()
 		m.Assert(e)
-
-		s, i := m.Target, 0
-		m.BackTrace(func(m *ctx.Message) bool {
-			s = m.Target
-			if i++; i == 2 {
-				return false
-			}
-			return true
-		})
-
-		msg := m.Spawn(s)
-		msg.Start(fmt.Sprintf("com%d", m.Capi("nclient", 1)), c.RemoteAddr().String(), "accept", c.RemoteAddr().String())
-		msg.Log("info", nil, "accept(%d) %v<-%v", m.Capi("nclient"), c.LocalAddr(), c.RemoteAddr())
-
-		if tcp, ok := msg.Target.Server.(*TCP); ok {
-			tcp.Conn = c
-		}
-		rep := m.Reply(c.RemoteAddr().String())
-		rep.Source = msg.Target
-		rep.Put("option", "io", c).Cmd("open")
+		m.Spawn(Index).Put("option", "io", c).Put("option", "source", m.Source).Start(fmt.Sprintf("com%d", m.Capi("nclient", 1)), "网络连接", "accept", c.RemoteAddr().String())
 	}
 
 	return true
@@ -90,22 +98,33 @@ func (tcp *TCP) Start(m *ctx.Message, arg ...string) bool { // {{{
 
 // }}}
 func (tcp *TCP) Close(m *ctx.Message, arg ...string) bool { // {{{
-	if tcp.Listener != nil {
-		m.Log("info", nil, "close(%d) %v", m.Capi("nlisten", -1)+1, tcp.Listener.Addr())
-		tcp.Listener.Close()
-		return true
-	}
-	if tcp.Conn != nil {
-		tcp.Conn.Close()
-		return true
+	if tcp.Context == Index {
+		return false
 	}
 
-	return false
+	switch tcp.Context {
+	case m.Target:
+	case m.Source:
+		if tcp.Listener != nil {
+			return false
+		}
+
+	}
+
+	if tcp.Listener != nil {
+		m.Log("info", nil, "close(%d) %v", Pulse.Capi("nlisten", -1)+1, tcp.Listener.Addr())
+		tcp.Listener.Close()
+	}
+	if tcp.Conn != nil {
+		m.Log("info", nil, "close %v", tcp.Conn.LocalAddr())
+		tcp.Conn.Close()
+	}
+	return true
 }
 
 // }}}
 
-var Index = &ctx.Context{Name: "tcp", Help: "网络连接",
+var Index = &ctx.Context{Name: "tcp", Help: "网络中心",
 	Caches: map[string]*ctx.Cache{
 		"nlisten": &ctx.Cache{Name: "nlisten", Value: "0", Help: "监听数量"},
 		"nclient": &ctx.Cache{Name: "nclient", Value: "0", Help: "连接数量"},
@@ -118,14 +137,14 @@ var Index = &ctx.Context{Name: "tcp", Help: "网络连接",
 		"listen": &ctx.Command{Name: "listen [address [security]]", Help: "监听连接", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
 			switch len(arg) { // {{{
 			case 0:
-				m.Travel(m.Target, func(m *ctx.Message) bool {
+				m.Travel(nil, func(m *ctx.Message) bool {
 					if tcp, ok := m.Target.Server.(*TCP); ok && tcp.Listener != nil {
 						m.Echo("%s %v\n", m.Target.Name, tcp.Addr())
 					}
 					return true
 				})
 			default:
-				m.Start(fmt.Sprintf("pub%d", m.Capi("nlisten", 1)), arg[0], m.Meta["detail"]...)
+				m.Start(fmt.Sprintf("pub%d", m.Capi("nlisten")+1), "网络监听", m.Meta["detail"]...)
 			}
 			return ""
 			// }}}
@@ -133,14 +152,14 @@ var Index = &ctx.Context{Name: "tcp", Help: "网络连接",
 		"dial": &ctx.Command{Name: "dial [address [security]]", Help: "建立连接", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
 			switch len(arg) { // {{{
 			case 0:
-				m.Travel(m.Target, func(m *ctx.Message) bool {
+				m.Travel(nil, func(m *ctx.Message) bool {
 					if tcp, ok := m.Target.Server.(*TCP); ok && tcp.Conn != nil {
 						m.Echo("%s %v<->%v\n", m.Target.Name, tcp.LocalAddr(), tcp.RemoteAddr())
 					}
 					return true
 				})
 			default:
-				m.Start(fmt.Sprintf("com%d", m.Capi("nclient", 1)), arg[0], m.Meta["detail"]...)
+				m.Start(fmt.Sprintf("com%d", m.Capi("nclient")+1), "网络连接", m.Meta["detail"]...)
 			}
 			return ""
 			// }}}
@@ -153,9 +172,9 @@ var Index = &ctx.Context{Name: "tcp", Help: "网络连接",
 			// }}}
 		}},
 		"recv": &ctx.Command{Name: "recv size", Help: "接收消息", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
+			size, e := strconv.Atoi(arg[0])
+			m.Assert(e)
 			if tcp, ok := m.Target.Server.(*TCP); ok && tcp.Conn != nil { // {{{
-				size, e := strconv.Atoi(arg[0])
-				m.Assert(e)
 				buf := make([]byte, size)
 				tcp.Conn.Read(buf)
 				return string(buf)
@@ -174,6 +193,8 @@ var Index = &ctx.Context{Name: "tcp", Help: "网络连接",
 	},
 }
 
+var Pulse *ctx.Message
+
 func init() {
 	tcp := &TCP{}
 	tcp.Context = Index
diff --git a/src/context/web/web.go b/src/context/web/web.go
index 4bdfe1b0..21de3270 100644
--- a/src/context/web/web.go
+++ b/src/context/web/web.go
@@ -117,7 +117,6 @@ func (web *WEB) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
 	web.Caches["route"] = &ctx.Cache{Name: "route", Value: "/" + web.Context.Name + "/", Help: "请求路径"}
 	web.Caches["register"] = &ctx.Cache{Name: "已初始化(yes/no)", Value: "no", Help: "模块是否已注册"}
 	web.Caches["master"] = &ctx.Cache{Name: "master(yes/no)", Value: "no", Help: "日志输出请求头"}
-	m.Cap("stream", m.Cap("route")+" -> "+m.Cap("directory"))
 
 	web.ServeMux = http.NewServeMux()
 	if mux, ok := m.Target.Server.(MUX); ok {
@@ -166,7 +165,7 @@ func (web *WEB) Start(m *ctx.Message, arg ...string) bool { // {{{
 		return true
 	})
 
-	web.Caches["address"] = &ctx.Cache{Name: "address", Value: ":9393", Help: "监听地址"}
+	web.Caches["address"] = &ctx.Cache{Name: "address", Value: ":9191", Help: "监听地址"}
 	web.Caches["protocol"] = &ctx.Cache{Name: "protocol", Value: "http", Help: "服务协议"}
 	if len(arg) > 1 {
 		m.Cap("address", arg[1])
diff --git a/src/example/bench.go b/src/example/bench.go
index 757c011c..e8f8ee84 100644
--- a/src/example/bench.go
+++ b/src/example/bench.go
@@ -2,16 +2,15 @@ package main
 
 import (
 	"context"
+	_ "context/aaa"
 	_ "context/cli"
 
 	_ "context/mdb"
 	_ "context/tcp"
-
-	_ "context/aaa"
-	_ "context/ssh"
-
 	_ "context/web"
 
+	_ "context/ssh"
+
 	_ "context/lex"
 
 	"os"