diff --git a/src/contexts/cli/cli.go b/src/contexts/cli/cli.go
index 44f59486..74e77961 100644
--- a/src/contexts/cli/cli.go
+++ b/src/contexts/cli/cli.go
@@ -1018,6 +1018,24 @@ var Index = &ctx.Context{Name: "cli", Help: "管理中心",
 					m.Table()
 					return
 				}
+				switch arg[0] {
+				case "stop":
+					if timer := m.Confm("timer", arg[1]); timer != nil {
+						timer["stop"] = true
+					}
+					cli.schedule(m)
+					return
+				case "start":
+					if timer := m.Confm("timer", arg[1]); timer != nil {
+						timer["stop"] = false
+					}
+					cli.schedule(m)
+					return
+				case "delete":
+					delete(m.Confm("timer"), arg[1])
+					cli.schedule(m)
+					return
+				}
 
 				now := int64(m.Sess("cli").Cmd("time").Appendi("timestamp"))
 				begin := now
@@ -1046,6 +1064,7 @@ var Index = &ctx.Context{Name: "cli", Help: "管理中心",
 					"repeat":      repeat,
 					"order":       order,
 					"done":        false,
+					"stop":        false,
 					"time":        arg[0],
 					"cmd":         arg[1:],
 					"msg":         0,
@@ -1062,18 +1081,21 @@ var Index = &ctx.Context{Name: "cli", Help: "管理中心",
 								if m.Conf("timer_next") == "" {
 									break
 								}
-								timer := m.Confv("timer", m.Conf("timer_next")).(map[string]interface{})
-								m.Log("info", "timer %s %v", m.Conf("timer_next"), timer["cmd"])
 
-								msg := m.Sess("cli").Cmd("source", timer["cmd"])
-								timer["result"] = msg.Meta["result"]
-								timer["msg"] = msg.Code()
+								if timer := m.Confm("timer", m.Conf("timer_next")); timer != nil && !kit.Right(timer["stop"]) {
+									m.Log("info", "timer %s %v", m.Conf("timer_next"), timer["cmd"])
 
-								if timer["repeat"].(bool) {
-									timer["action_time"] = int64(m.Sess("cli").Cmd("time", timer["action_time"], timer["order"], timer["time"]).Appendi("timestamp"))
-								} else {
-									timer["done"] = true
+									msg := m.Sess("cli").Cmd("source", timer["cmd"])
+									timer["result"] = msg.Meta["result"]
+									timer["msg"] = msg.Code()
+
+									if timer["repeat"].(bool) {
+										timer["action_time"] = int64(m.Sess("cli").Cmd("time", timer["action_time"], timer["order"], timer["time"]).Appendi("timestamp"))
+									} else {
+										timer["done"] = true
+									}
 								}
+
 								cli.schedule(m)
 							}
 						}
diff --git a/src/contexts/ctx/ctx.go b/src/contexts/ctx/ctx.go
index 982139d3..0b4b2e33 100644
--- a/src/contexts/ctx/ctx.go
+++ b/src/contexts/ctx/ctx.go
@@ -156,6 +156,9 @@ func (c *Context) Start(m *Message, arg ...string) bool {
 			c.Close(m, m.Meta["detail"]...)
 			c.exit <- true
 		}
+	}, func(m *Message) {
+		c.Close(m, m.Meta["detail"]...)
+		c.exit <- true
 	})
 
 	if sync {
@@ -173,8 +176,9 @@ func (c *Context) Close(m *Message, arg ...string) bool {
 	if m.target == c {
 		for i := len(c.requests) - 1; i >= 0; i-- {
 			if msg := c.requests[i]; msg.code == m.code {
-				m.Log("close", "request %d/%d", i, len(c.requests)-1)
 				if c.Server == nil || c.Server.Close(m, arg...) {
+					m.Log("close", "request %d/%d", i, len(c.requests)-1)
+					msg.Free()
 					for j := i; j < len(c.requests)-1; j++ {
 						c.requests[j] = c.requests[j+1]
 					}
@@ -289,6 +293,7 @@ type Message struct {
 	Data map[string]interface{}
 
 	callback func(msg *Message) (sub *Message)
+	freedoms []func(msg *Message) (done bool)
 	Sessions map[string]*Message
 
 	messages []*Message
@@ -436,6 +441,13 @@ func (m *Message) Format(arg ...interface{}) string {
 			meta = append(meta, kit.Format(m.code))
 		case "ship":
 			meta = append(meta, fmt.Sprintf("%d(%s->%s)", m.code, m.source.Name, m.target.Name))
+		case "source":
+			target := m.target
+			m.target = m.source
+			meta = append(meta, m.Cap("module"))
+			m.target = target
+		case "target":
+			meta = append(meta, m.Cap("module"))
 
 		case "detail":
 			meta = append(meta, fmt.Sprintf("%v", m.Meta["detail"]))
@@ -609,18 +621,7 @@ func (m *Message) Has(key ...string) bool {
 	return false
 }
 func (m *Message) CopyTo(msg *Message, arg ...string) *Message {
-	if m == msg {
-		return m
-	}
-	if len(arg) == 0 {
-		if msg.Hand {
-			msg.Copy(m, "append").Copy(m, "result")
-		} else {
-			msg.Copy(m, "option")
-		}
-	} else {
-		msg.Copy(m, arg...)
-	}
+	msg.Copy(m, arg...)
 	return m
 }
 func (m *Message) Copy(msg *Message, arg ...string) *Message {
@@ -629,7 +630,7 @@ func (m *Message) Copy(msg *Message, arg ...string) *Message {
 	}
 	if len(arg) == 0 {
 		if msg.Hand {
-			arg = append(arg, "append")
+			arg = append(arg, "append", "result")
 		} else {
 			arg = append(arg, "option")
 		}
@@ -1010,6 +1011,9 @@ func (m *Message) Parse(arg interface{}) string {
 }
 
 func (m *Message) Find(name string, root ...bool) *Message {
+	if name == "" {
+		return m.Spawn()
+	}
 	target := m.target.root
 	if len(root) > 0 && !root[0] {
 		target = m.target
@@ -1118,10 +1122,17 @@ func (m *Message) Sess(key string, arg ...interface{}) *Message {
 	return nil
 }
 func (m *Message) Match(key string, spawn bool, hand func(m *Message, s *Context, c *Context, key string) bool) *Message {
+	if m == nil {
+		return m
+	}
+
 	if strings.Contains(key, ".") {
 		arg := strings.Split(key, ".")
 		m, key = m.Sess(arg[0], spawn), arg[1]
 	}
+	if m == nil {
+		return m
+	}
 
 	context := []*Context{m.target}
 	for _, v := range []string{"aaa", "cli"} {
@@ -1141,26 +1152,41 @@ func (m *Message) Match(key string, spawn bool, hand func(m *Message, s *Context
 	return m
 }
 func (m *Message) Call(cb func(msg *Message) (sub *Message), arg ...interface{}) *Message {
+	if m == nil {
+		return m
+	}
 	if m.callback = cb; len(arg) > 0 || len(m.Meta["detail"]) > 0 {
+		m.Log("call", m.Format("detail", "option"))
 		m.Cmd(arg...)
 	}
 	return m
 }
-func (m *Message) Back(msg *Message) *Message {
-	if msg == nil || m.callback == nil {
+func (m *Message) Back(ms ...*Message) *Message {
+	if m.callback == nil {
 		return m
 	}
 
-	if msg.Hand {
-		m.Log("cbs", msg.Format("ship", "result", "append"))
-	} else {
-		m.Log("cbs", msg.Format("ship", "detail", "option"))
+	if len(ms) == 0 {
+		ms = append(ms, m.Spawn(m.source).Copy(m, "append").Copy(m, "result"))
 	}
 
-	if sub := m.callback(msg); sub != nil && m.message != nil && m.message != m {
-		m.message.Back(sub)
+	ns := []*Message{}
+
+	for _, msg := range ms {
+		if msg.Hand {
+			m.Log("back", msg.Format("ship", "result", "append"))
+		} else {
+			m.Log("back", msg.Format("ship", "detail", "option"))
+		}
+
+		if sub := m.callback(msg); sub != nil && m.message != nil && m.message != m {
+			ns = append(ns, sub)
+		}
 	}
 
+	if len(ns) > 0 {
+		m.message.Back(ns...)
+	}
 	return m
 }
 func (m *Message) Backs(msg *Message) *Message {
@@ -1172,15 +1198,32 @@ func (m *Message) CallBack(sync bool, cb func(msg *Message) (sub *Message), arg
 		return m.Call(cb, arg...)
 	}
 
-	wait := make(chan *Message)
+	wait := make(chan *Message, 10)
 	go m.Call(func(sub *Message) *Message {
 		msg := cb(sub)
+		m.Log("sync", m.Format("done", "result", "append"))
 		wait <- m
 		return msg
 	}, arg...)
 
+	m.Log("sync", m.Format("wait", "result", "append"))
 	return <-wait
 }
+func (m *Message) Free(cbs ...func(msg *Message) (done bool)) *Message {
+	if len(cbs) == 0 {
+		for i := len(m.freedoms) - 1; i >= 0; i-- {
+			m.Log("free", "%d/%d", i, len(m.freedoms)-1)
+			if !m.freedoms[i](m) {
+				break
+			}
+			m.freedoms = m.freedoms[:i]
+		}
+		return m
+	}
+
+	m.freedoms = append(m.freedoms, cbs...)
+	return m
+}
 
 func (m *Message) Assert(e interface{}, msg ...string) bool {
 	switch v := e.(type) {
@@ -1204,7 +1247,7 @@ func (m *Message) Assert(e interface{}, msg ...string) bool {
 	}
 
 	m.Log("error", "%v", e)
-	panic(m.Set("result", "error: ", kit.Format(e), "\n"))
+	panic(e)
 }
 func (m *Message) TryCatch(msg *Message, safe bool, hand ...func(msg *Message)) *Message {
 	defer func() {
@@ -1236,6 +1279,9 @@ func (m *Message) TryCatch(msg *Message, safe bool, hand ...func(msg *Message))
 func (m *Message) Start(name string, help string, arg ...string) bool {
 	return m.Set("detail", arg).target.Spawn(m, name, help).Begin(m).Start(m)
 }
+func (m *Message) Close(arg ...string) bool {
+	return m.Target().Close(m, arg...)
+}
 func (m *Message) Wait() bool {
 	if m.target.exit != nil {
 		return <-m.target.exit
@@ -1523,7 +1569,7 @@ var Index = &Context{Name: "ctx", Help: "模块中心", Server: &CTX{},
 
 		"list_help":     &Config{Name: "list_help", Value: "list command", Help: "命令列表帮助"},
 		"table_compact": &Config{Name: "table_compact", Value: "false", Help: "命令列表帮助"},
-		"table_col_sep": &Config{Name: "table_col_sep", Value: "\t", Help: "命令列表帮助"},
+		"table_col_sep": &Config{Name: "table_col_sep", Value: "  ", Help: "命令列表帮助"},
 		"table_row_sep": &Config{Name: "table_row_sep", Value: "\n", Help: "命令列表帮助"},
 		"table_space":   &Config{Name: "table_space", Value: " ", Help: "命令列表帮助"},
 
@@ -1701,28 +1747,27 @@ var Index = &Context{Name: "ctx", Help: "模块中心", Server: &CTX{},
 				}
 			}
 
-			if len(arg) > 0 {
-				switch arg[0] {
-				case "time", "code", "ship", "full", "chain", "stack":
-					m.Echo(m.Format(arg[0]))
-					return
-				}
+			if len(arg) == 0 {
+				m.Format("summary", msg, "deep")
+				msg.CopyTo(m)
+				return
 			}
 
-			if len(arg) > 0 && arg[0] == "spawn" {
+			switch arg[0] {
+			case "time", "code", "ship", "full", "chain", "stack":
+				m.Echo(msg.Format(arg[0]))
+			case "spawn":
 				sub := msg.Spawn()
 				m.Echo("%d", sub.code)
-				return
-			}
-
-			if len(arg) > 0 {
+			case "call":
+			case "back":
+				msg.Back(m)
+			case "free":
+				msg.Free()
+			default:
 				msg = msg.Spawn().Cmd(arg)
 				m.Copy(msg, "append").Copy(msg, "result")
-				return
 			}
-
-			m.Format("summary", msg, "deep")
-			msg.CopyTo(m)
 			return
 		}},
 		"detail": &Command{Name: "detail [index] [value...]", Help: "查看或添加参数", Hand: func(m *Message, c *Context, key string, arg ...string) (e error) {
@@ -2343,6 +2388,8 @@ var Index = &Context{Name: "ctx", Help: "模块中心", Server: &CTX{},
 					})
 					m.Sort("key", "str").Table()
 					return
+				case 1:
+					m.Echo(m.Cap(arg[0]))
 				case 2:
 					if arg[0] == "delete" {
 						delete(m.target.Caches, arg[1])
diff --git a/src/contexts/gdb/gdb.go b/src/contexts/gdb/gdb.go
index be33cb0c..ecb49cbd 100644
--- a/src/contexts/gdb/gdb.go
+++ b/src/contexts/gdb/gdb.go
@@ -110,7 +110,7 @@ var Index = &ctx.Context{Name: "gdb", Help: "调试中心",
 				"start": map[string]interface{}{"value": map[string]interface{}{"enable": false}},
 			},
 			"command": map[string]interface{}{"value": map[string]interface{}{"enable": false},
-				"demo": map[string]interface{}{"value": map[string]interface{}{"enable": true}},
+				"shit": map[string]interface{}{"value": map[string]interface{}{"enable": true}},
 			},
 			"config": map[string]interface{}{"value": map[string]interface{}{"enable": true}},
 			"cache": map[string]interface{}{"value": map[string]interface{}{"enable": false},
diff --git a/src/contexts/log/log.go b/src/contexts/log/log.go
index 061eb633..f2ae3a90 100644
--- a/src/contexts/log/log.go
+++ b/src/contexts/log/log.go
@@ -125,7 +125,7 @@ var Index = &ctx.Context{Name: "log", Help: "日志中心",
 			"trace":  map[string]interface{}{"value": map[string]interface{}{"file": "error.log", "meta": []interface{}{"time", "ship"}, "color_begin": "\033[32m", "color_end": "\033[0m"}},
 			"debug":  map[string]interface{}{"value": map[string]interface{}{"file": "debug.log", "meta": []interface{}{"time", "ship"}}},
 			"search": map[string]interface{}{"value": map[string]interface{}{"file": "debug.log", "meta": []interface{}{"time", "ship"}}},
-			"cbs":    map[string]interface{}{"value": map[string]interface{}{"file": "debug.log", "meta": []interface{}{"time", "ship"}}},
+			"cbs":    map[string]interface{}{"value": map[string]interface{}{"file": "bench.log", "meta": []interface{}{"time", "ship"}}},
 
 			"bench": map[string]interface{}{"value": map[string]interface{}{"file": "bench.log", "meta": []interface{}{"time", "ship"}}},
 			"begin": map[string]interface{}{"value": map[string]interface{}{"file": "bench.log", "meta": []interface{}{"time", "ship"}, "color_begin": "\033[31m", "color_end": "\033[0m"}},
diff --git a/src/contexts/nfs/nfs.go b/src/contexts/nfs/nfs.go
index caab65df..be382597 100644
--- a/src/contexts/nfs/nfs.go
+++ b/src/contexts/nfs/nfs.go
@@ -31,6 +31,7 @@ type NFS struct {
 	out *os.File
 
 	send chan *ctx.Message
+	echo chan *ctx.Message
 	hand map[int]*ctx.Message
 
 	*ctx.Context
@@ -644,9 +645,16 @@ func (nfs *NFS) shadow(args ...interface{}) *NFS {
 func (nfs *NFS) Send(meta string, arg ...interface{}) *NFS {
 	m := nfs.Context.Message()
 
-	n, e := fmt.Fprintf(nfs.io, "%s: %s\n", url.QueryEscape(meta), url.QueryEscape(kit.Format(arg[0])))
+	line := "\n"
+	if meta != "" {
+		line = fmt.Sprintf("%s: %s\n", url.QueryEscape(meta), url.QueryEscape(kit.Format(arg[0])))
+	}
+
+	n, e := fmt.Fprint(nfs.io, line)
 	m.Assert(e)
 	m.Capi("nwrite", n)
+	m.Log("send", "%d [%s]", len(line), line)
+
 	return nfs
 }
 func (nfs *NFS) Recv(line string) (field string, value string) {
@@ -661,6 +669,9 @@ func (nfs *NFS) Recv(line string) (field string, value string) {
 	if len(word) == 1 {
 		return
 	}
+	if len(word[1]) == 0 {
+		return
+	}
 
 	value, e = url.QueryUnescape(word[1])
 	m.Assert(e)
@@ -765,30 +776,30 @@ func (nfs *NFS) Start(m *ctx.Message, arg ...string) bool {
 	m.Cap("stream", m.Option("ms_source"))
 	nfs.io = m.Optionv("io").(io.ReadWriter)
 	nfs.send = make(chan *ctx.Message, 10)
+	nfs.echo = make(chan *ctx.Message, 10)
 	nfs.hand = map[int]*ctx.Message{}
 
 	go func() { //发送消息队列
 		for {
+			msg, code, meta, body := m, 0, "detail", "option"
 			select {
-			case msg := <-nfs.send:
-				code, meta, body := "0", "detail", "option"
-				if msg.Options("remote_code") { // 发送响应
-					code, meta, body = msg.Option("remote_code"), "result", "append"
-				} else { // 发送请求
-					code = kit.Format(m.Capi("nsend", 1))
-					nfs.hand[kit.Int(code)] = msg
-				}
+			case msg = <-nfs.send:
+				code = msg.Code()
+				nfs.hand[code] = msg
+			case msg = <-nfs.echo:
+				code, meta, body = msg.Optioni("remote_code"), "result", "append"
+			}
 
-				nfs.Send("code", code)
-				for _, v := range msg.Meta[meta] {
-					nfs.Send(meta, v)
-				}
-				for _, k := range msg.Meta[body] {
-					for _, v := range msg.Meta[k] {
-						nfs.Send(k, v)
-					}
+			nfs.Send("code", code)
+			for _, v := range msg.Meta[meta] {
+				nfs.Send(meta, v)
+			}
+			for _, k := range msg.Meta[body] {
+				for _, v := range msg.Meta[k] {
+					nfs.Send(k, v)
 				}
 			}
+			nfs.Send("")
 		}
 	}()
 
@@ -796,38 +807,47 @@ func (nfs *NFS) Start(m *ctx.Message, arg ...string) bool {
 	msg, code, head, body := m, "0", "result", "append"
 	for bio := bufio.NewScanner(nfs.io); bio.Scan(); {
 
-		switch field, value := nfs.Recv(bio.Text()); field {
-		case "code":
-			msg, code = m.Sess("ms_target"), value
-			msg.Meta = map[string][]string{}
+		m.TryCatch(m, true, func(m *ctx.Message) {
+			switch field, value := nfs.Recv(bio.Text()); field {
+			case "code":
+				msg, code = m.Sess("ms_target"), value
+				msg.Meta = map[string][]string{}
 
-		case "detail":
-			head, body = "detail", "option"
-			msg.Add(field, value)
+			case "detail":
+				head, body = "detail", "option"
+				msg.Add(field, value)
 
-		case "result":
-			head, body = "result", "append"
-			msg.Add(field, value)
+			case "result":
+				head, body = "result", "append"
+				msg.Add(field, value)
 
-		case "":
-			if head == "detail" { // 接收请求
-				msg.Option("remote_code", code)
-				msg.Call(func(sub *ctx.Message) *ctx.Message {
-					nfs.send <- msg.Copy(sub, "append").Copy(sub, "result")
-					return nil
-				})
-			} else { // 接收响应
-				h := nfs.hand[kit.Int(code)]
-				h.Copy(msg, "result").Copy(msg, "append").Back(h)
+			case "":
+				if head == "detail" { // 接收请求
+					msg.Detail(-1, "remote")
+					msg.Option("remote_code", code)
+					msg.Call(func(msg *ctx.Message) *ctx.Message {
+						nfs.echo <- msg
+						return nil
+					})
+				} else { // 接收响应
+					h := nfs.hand[kit.Int(code)]
+					h.Copy(msg, "result").Copy(msg, "append").Back(h)
+				}
+				msg, code, head, body = nil, "0", "result", "append"
+
+			default:
+				msg.Add(body, field, value)
 			}
-			msg, code, head, body = nil, "0", "result", "append"
-
-		default:
-			msg.Add(body, field, value)
-		}
-
+		}, func(m *ctx.Message) {
+			for bio.Scan() {
+				if text := bio.Text(); text == "" {
+					break
+				}
+			}
+		})
 	}
 
+	m.Sess("tcp", false).Close()
 	return true
 }
 func (nfs *NFS) Close(m *ctx.Message, arg ...string) bool {
@@ -1252,6 +1272,12 @@ var Index = &ctx.Context{Name: "nfs", Help: "存储中心",
 			}
 			return
 		}},
+		"term": &ctx.Command{Name: "term action args...", Help: "", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
+			if nfs, ok := m.Target().Server.(*NFS); m.Assert(ok) {
+				nfs.Term(m, arg[0], arg[1:])
+			}
+			return
+		}},
 		"action": &ctx.Command{Name: "action cmd", Help: "", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
 			if nfs, ok := m.Target().Server.(*NFS); m.Assert(ok) {
 				msg := m.Cmd("cli.source", arg)
@@ -1264,6 +1290,7 @@ var Index = &ctx.Context{Name: "nfs", Help: "存储中心",
 		"remote": &ctx.Command{Name: "remote listen|dial args...", Help: "启动文件服务, args: 参考tcp模块, listen命令的参数", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
 			if _, ok := m.Target().Server.(*NFS); m.Assert(ok) { //{{{
 				m.Sess("tcp").Call(func(sub *ctx.Message) *ctx.Message {
+					sub.Sess("ms_source", sub)
 					sub.Sess("ms_target", m.Source())
 					sub.Start(fmt.Sprintf("file%d", m.Capi("nfile", 1)), "远程文件")
 					return sub
diff --git a/src/contexts/ssh/ssh.go b/src/contexts/ssh/ssh.go
index 6ed3e7d0..551ec4f7 100644
--- a/src/contexts/ssh/ssh.go
+++ b/src/contexts/ssh/ssh.go
@@ -2,12 +2,15 @@ package ssh
 
 import (
 	"contexts/ctx"
+	"encoding/base64"
+	"fmt"
+	"os"
+	"path"
 	"strings"
 	"toolkit"
 )
 
 type SSH struct {
-	peer map[string]*ctx.Message
 	*ctx.Context
 }
 
@@ -20,270 +23,212 @@ func (ssh *SSH) Spawn(m *ctx.Message, c *ctx.Context, arg ...string) ctx.Server
 	return s
 }
 func (ssh *SSH) Begin(m *ctx.Message, arg ...string) ctx.Server {
-	ssh.Caches["hostname"] = &ctx.Cache{Name: "hostname", Value: "", Help: "主机数量"}
 	return ssh
 }
 func (ssh *SSH) Start(m *ctx.Message, arg ...string) bool {
-	m.Cap("stream", m.Source().Name)
-	return false
+	return true
 }
 func (ssh *SSH) Close(m *ctx.Message, arg ...string) bool {
-	return false
+	return true
 }
 
 var Index = &ctx.Context{Name: "ssh", Help: "集群中心",
 	Caches: map[string]*ctx.Cache{
-		"nhost":  &ctx.Cache{Name: "主机数量", Value: "0", Help: "主机数量"},
-		"domain": &ctx.Cache{Name: "domain", Value: "", Help: "主机域名"},
+		"nhost":    &ctx.Cache{Name: "nhost", Value: "0", Help: "主机数量"},
+		"hostname": &ctx.Cache{Name: "hostname", Value: "shy", Help: "本机域名"},
 	},
 	Configs: map[string]*ctx.Config{
-		"host": &ctx.Config{Name: "host", Value: map[string]interface{}{}, Help: "主机数量"},
-
-		"hostname": &ctx.Config{Name: "hostname", Value: "com", Help: "主机数量"},
-
-		"domain.json": &ctx.Config{Name: "domain.json", Value: "var/domain.json", Help: "主机数量"},
-		"domain.png":  &ctx.Config{Name: "domain.png", Value: "var/domain.png", Help: "主机数量"},
+		"host":     &ctx.Config{Name: "host", Value: map[string]interface{}{}, Help: "主机信息"},
+		"hostname": &ctx.Config{Name: "hostname", Value: "com", Help: "主机域名"},
+		"current":  &ctx.Config{Name: "current", Value: "", Help: "当前主机"},
+		"timer":    &ctx.Config{Name: "timer", Value: "", Help: "当前主机"},
 	},
 	Commands: map[string]*ctx.Command{
-		"remote": &ctx.Command{Name: "remote listen|dial|send args...", Help: "网络监听", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
+		"remote": &ctx.Command{Name: "remote listen|dial args...", Help: "远程连接", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
 			if len(arg) == 0 {
 				m.Cmdy("ctx.config", "host")
 				return
 			}
 
-			host := m.Confm("host", arg[0])
-			if host != nil {
-				arg = arg[1:]
-			}
-
 			switch arg[0] {
+			case "redial":
+				if !m.Caps("hostname") {
+					m.Cmdx("remote", "dial", arg[1:])
+				}
 			case "listen", "dial":
-				m.Call(func(sub *ctx.Message) *ctx.Message {
-					h, _ := kit.Hash("host", m.Option("ms_source"), "uniq")
-					m.Log("fuck", "what %v", sub.Format())
-					m.Confv("host", h, map[string]interface{}{
-						"module": sub.Cap("module"),
-						"type":   arg[0],
-					})
+				m.Call(func(nfs *ctx.Message) *ctx.Message {
+					if arg[0] == "dial" {
+						if m.Confs("timer") {
+							m.Conf("timer", m.Cmdx("cli.timer", "delete", m.Conf("timer")))
+						}
+						m.Spawn(nfs.Target()).Call(func(cmd *ctx.Message) *ctx.Message {
+							m.Cap("stream", nfs.Format("target"))
+							m.Cap("hostname", cmd.Result(0))
+
+							m.Confv("host", cmd.Result(1), map[string]interface{}{
+								"module":      nfs.Format("target"),
+								"create_time": m.Time(),
+								"access_time": m.Time(),
+							})
+							if !m.Confs("current") {
+								m.Conf("current", cmd.Result(1))
+							}
+
+							nfs.Free(func(nfs *ctx.Message) bool {
+								m.Conf("timer", m.Cmdx("cli.timer", "repeat", "10s", "context", "ssh", "remote", "redial", arg[1:]))
+
+								m.Log("info", "delete host %s", cmd.Result(1))
+								delete(m.Confm("host"), cmd.Result(1))
+								m.Cap("hostname", "")
+								m.Cap("stream", "")
+								return true
+							})
+							return nil
+						}, "send", "recv", "add", m.Conf("hostname"))
+					}
 					return nil
 				}, "nfs.remote", arg)
 
-			case "exec":
-				m.Find(kit.Format(host["module"]), true).CallBack(true, func(sub *ctx.Message) *ctx.Message {
-					m.Copy(sub)
-					return nil
-				}, arg[1:])
-			}
-
-			return
-		}},
-
-		"demo": &ctx.Command{Name: "demo", Help: "远程执行", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
-			m.Echo("demo")
-			return
-		}},
-
-		"send": &ctx.Command{Name: "send [domain str] cmd arg...", Help: "远程执行", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
-			if ssh, ok := m.Target().Server.(*SSH); m.Assert(ok) {
-				origin, domain := "", ""
-				if len(arg) > 1 && arg[0] == "domain" {
-					origin, arg = arg[1], arg[2:]
-					if d := strings.TrimPrefix(origin, m.Cap("domain")); len(d) > 0 && d[0] == '.' {
-						domain = d[1:]
-					} else if d == "" {
-						domain = d
+			case "recv":
+				switch arg[1] {
+				case "add":
+					if host := m.Confm("host", arg[2]); host == nil {
+						m.Confv("host", arg[2], map[string]interface{}{
+							"module":      m.Format("source"),
+							"create_time": m.Time(),
+							"access_time": m.Time(),
+						})
+					} else if len(arg) > 3 && arg[3] == kit.Format(host["token"]) {
+						host["access_time"] = m.Time()
+						host["module"] = m.Format("source")
 					} else {
-						domain = origin
+						arg[2] = fmt.Sprintf("%s_%d", arg[2], m.Capi("nhost", 1))
+						m.Confv("host", arg[2], map[string]interface{}{
+							"module":      m.Format("source"),
+							"create_time": m.Time(),
+							"access_time": m.Time(),
+						})
+					}
+					if !m.Confs("current") {
+						m.Conf("current", arg[2])
 					}
 
-					if domain == "" { //本地执行
-						msg := m.Spawn().Cmd(arg)
-						m.Copy(msg, "result").Copy(msg, "append")
-						return
-					}
-				} else {
-					if m.Has("send_code") { //本地执行
-						msg := m.Spawn().Cmd(arg)
-						m.Copy(msg, "result").Copy(msg, "append")
-					} else { //对端执行
-						msg := m.Spawn(ssh.Message().Source())
-						msg.Cmd("send", arg)
-						m.Copy(msg, "result").Copy(msg, "append")
-					}
-					return
-				}
-
-				match := false
-				host := strings.SplitN(domain, ".", 2)
-				c.Travel(m, func(m *ctx.Message, i int) bool {
-					if i == 0 {
+					m.Echo(arg[2]).Echo(m.Cap("hostname")).Back(m)
+					m.Sess("ms_source", false).Free(func(msg *ctx.Message) bool {
+						m.Log("info", "delete host %s", arg[2])
+						delete(m.Confm("host"), arg[2])
 						return true
-					}
-					if m.Cap("hostname") == host[0] || "*" == host[0] {
-						ssh, ok := m.Target().Server.(*SSH)
-						m.Assert(ok)
-						msg := m.Spawn(ssh.Message().Source())
-
-						if len(host) > 1 {
-							msg.Cmd("send", "domain", host[1], arg)
-						} else {
-							msg.Cmd("send", arg)
-						}
-						m.Copy(msg, "result").Copy(msg, "append")
-
-						if !match {
-							match = !m.Appends("domain_miss")
-						}
-						return host[0] == "*"
-					}
-					return false
-				})
-
-				if match {
-					return
-				}
-				if m.Target() == c && m.Has("send_code") {
-					m.Appends("domain_miss", true)
-					return
-				}
-				if m.Cap("domain") == m.Conf("hostname") {
-					m.Appends("domain_miss", true)
-					return
-				}
-
-				// 向上路由
-				msg := m.Spawn(c.Message().Source())
-				msg.Cmd("send", "domain", origin, arg)
-				m.Copy(msg, "result").Copy(msg, "append")
-			}
-			return
-		}},
-
-		"pwd": &ctx.Command{Name: "pwd [hostname]", Help: "主机域名", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
-			if len(arg) == 0 {
-				m.Echo(m.Cap("domain"))
-				return
-			}
-
-			if m.Options("send_code") {
-				if m.Target() == c {
-					msg := m.Spawn().Cmd("send", "pwd", m.Confx("hostname", arg, 0))
-					m.Cap("hostname", msg.Result(0))
-					m.Cap("domain", msg.Result(1))
-				} else {
-					hostname := arg[0]
-					c.Travel(m, func(m *ctx.Message, line int) bool {
-						if hostname == m.Cap("hostname") {
-							hostname += m.Cap("nhost")
-							return false
-						}
-						return false
 					})
-					m.Echo(m.Cap("hostname", hostname))
-					m.Echo("%s.%s", m.Cap("domain"), m.Cap("hostname"))
 				}
-				return
-			}
 
-			if m.Target() == c {
-				m.Conf("hostname", arg[0])
-				msg := m.Spawn().Cmd("send", "pwd", arg[0])
-				m.Cap("hostname", msg.Result(0))
-				m.Cap("domain", msg.Result(1))
-			} else {
-				m.Spawn().Cmd("send", "pwd", arg[0])
-			}
-			m.Echo(m.Cap("domain"))
-			return
-		}},
-		"hello": &ctx.Command{Name: "hello request", Help: "加密请求", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
-			aaa := m.Target().Message().Sess("aaa", false)
-			for _, k := range m.Meta["seal"] {
-				for i, v := range m.Meta[k] {
-					m.Meta[k][i] = m.Spawn(aaa).Cmd("deal", v).Result(0)
-				}
-			}
-			for _, k := range m.Meta["encrypt"] {
-				for i, v := range m.Meta[k] {
-					m.Meta[k][i] = m.Spawn(aaa).Cmd("decrypt", v).Result(0)
-				}
-			}
+			default:
+				names := strings.SplitN(arg[0], ".", 2)
+				if names[0] == "" { // 本地执行
+					host := m.Confm("host", m.Option("hostname"))
 
-			if len(arg) == 0 {
-				if !m.Has("mi") {
-					cert := aaa.Spawn().Cmd("certificate")
-					m.Echo(cert.Result(0))
+					msg := m.Find(kit.Format(host["cm_target"])).Cmd(arg[1:])
+					m.Copy(msg, "append").Copy(msg, "result")
+					host["cm_target"] = msg.Cap("module")
+
+					m.Back(m)
+					return
+				}
+
+				m.Option("hostname", m.Cap("hostname"))
+				sync := !m.Options("remote_code") //同步或异步
+				if arg[1] == "async" {
+					sync, arg = false, arg[2:]
+				} else if arg[1] == "sync" {
+					sync, arg = true, arg[2:]
 				} else {
-					msg := m.Sess("aaa").Cmd("login", m.Option("mi"), m.Option("mi"))
-					m.Echo(msg.Result(0))
-					msg.Sess("aaa").Cmd("newcipher", m.Option("mi"))
+					arg = arg[1:]
 				}
+
+				rest := kit.Select("", names, 1)
+				if names[0] == "*" {
+					m.Confm("host", func(name string, host map[string]interface{}) {
+						m.Find(kit.Format(host["module"]), true).Copy(m, "option").CallBack(sync, func(sub *ctx.Message) *ctx.Message {
+							return m.Copy(sub)
+						}, "send", "", arg)
+					})
+
+				} else if m.Confm("host", names[0], func(host map[string]interface{}) {
+					m.Find(kit.Format(host["module"]), true).Copy(m, "option").CallBack(sync, func(sub *ctx.Message) *ctx.Message {
+						return m.Copy(sub)
+					}, "send", rest, arg)
+					m.Log("fuck", "m %v", m.Meta)
+
+				}) == nil {
+					m.Find(m.Cap("stream"), true).Copy(m, "option").CallBack(sync, func(sub *ctx.Message) *ctx.Message {
+						return m.Copy(sub)
+					}, "send", strings.Join(names, "."), arg)
+				}
+			}
+			return
+		}},
+		"sh": &ctx.Command{Name: "sh [[host] name] cmd...", Help: "发送命令", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
+			if len(arg) == 0 {
+				m.Echo(m.Conf("current"))
 				return
 			}
 
-			msg := m.Spawn().Copy(m, "option").Cmd(arg)
-			m.Copy(msg, "result").Copy(msg, "append")
+			if arg[0] == "host" {
+				m.Conf("current", arg[1])
+				arg = arg[2:]
+			} else if m.Confm("host", arg[0]) != nil {
+				m.Conf("current", arg[0])
+				arg = arg[1:]
+			}
 
+			msg := m.Cmd("ssh.remote", m.Conf("current"), arg)
+			m.Copy(msg, "result")
 			return
 		}},
-		"shake": &ctx.Command{
-			Name: "shake [domain host] cmd... [seal option...][encrypt option...]",
-			Help: "加密通信",
-			Form: map[string]int{"seal": -1, "encrypt": -1},
-			Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
-				if ssh, ok := m.Target().Server.(*SSH); m.Assert(ok) {
-					if len(arg) == 0 {
-						for k, v := range ssh.peer {
-							m.Echo("%s: %s\n", k, v.Cap("stream"))
-						}
-						return
-					}
-
-					peer := "peer"
-					args := []string{}
-					if len(arg) > 1 && arg[0] == "domain" {
-						args = append(args, "domain", arg[1])
-						peer, arg = arg[1], arg[2:]
-					}
-					if ssh.peer == nil {
-						ssh.peer = map[string]*ctx.Message{}
-					}
-					user, ok := ssh.peer[peer]
-					if !ok {
-						user = m.Sess("aaa").Cmd("login", "cert", m.Spawn().Cmd("send", args, "hello"), peer)
-						ssh.peer[peer] = user
-						mi := user.Cap("sessid")
-
-						remote := m.Spawn().Add("option", mi, m.Spawn(user).Cmd("seal", mi)).Add("option", "seal", mi).Cmd("send", args, "hello")
-						m.Spawn(user).Cmd("newcipher", mi)
-						user.Cap("remote", "remote", remote.Result(0), "远程会话")
-						user.Cap("remote_mi", "remote_mi", mi, "远程密钥")
-					}
-
-					msg := m.Spawn(ssh.Message().Source()).Copy(m, "option")
-					msg.Option("hello", "world")
-					msg.Option("world", "hello")
-					for _, k := range msg.Meta["seal"] {
-						for i, v := range msg.Meta[k] {
-							msg.Meta[k][i] = msg.Spawn(user).Cmd("seal", v).Result(0)
-						}
-					}
-					for _, k := range msg.Meta["encrypt"] {
-						for i, v := range msg.Meta[k] {
-							msg.Meta[k][i] = msg.Spawn(user).Cmd("encrypt", v).Result(0)
-						}
-					}
-					msg.Detail("send", args, "hello", arg)
-					ssh.Message().Back(msg)
-					m.Copy(msg, "result").Copy(msg, "append")
-				}
+		"cp": &ctx.Command{Name: "cp [[host] name] filename", Help: "发送文件", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
+			if len(arg) == 0 {
+				m.Echo(m.Conf("current"))
 				return
-			}},
-		"save": &ctx.Command{Name: "save", Help: "远程执行", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) (e error) {
-			json := m.Sess("nfs")
-			json.Put("option", "data", map[string]string{"domain": m.Cap("domain")})
-			json.Cmd("json", m.Conf("domain.json"))
-			m.Sess("nfs").Cmd("genqr", m.Conf("domain.png"), json.Result(0))
+			}
+
+			if arg[0] == "host" {
+				m.Conf("current", arg[1])
+				arg = arg[2:]
+			} else if m.Confm("host", arg[0]) != nil {
+				m.Conf("current", arg[0])
+				arg = arg[1:]
+			}
+
+			if arg[0] == "save" {
+				buf, e := base64.StdEncoding.DecodeString(m.Option("filebuf"))
+				m.Assert(e)
+
+				f, e := os.OpenFile(path.Join("tmp", m.Option("filename")), os.O_RDWR|os.O_CREATE, 0666)
+				f.WriteAt(buf, int64(m.Optioni("filepos")))
+				return e
+			}
+
+			p := m.Cmdx("nfs.path", arg[0])
+			f, e := os.Open(p)
+			m.Assert(e)
+			s, e := f.Stat()
+			m.Assert(e)
+
+			buf := make([]byte, 1024)
+
+			for i := int64(0); i < s.Size(); i += 1024 {
+				n, _ := f.ReadAt(buf, i)
+				if n == 0 {
+					break
+				}
+
+				buf = buf[:n]
+				msg := m.Spawn()
+				msg.Option("filename", arg[0])
+				msg.Option("filesize", s.Size())
+				msg.Option("filepos", i)
+				msg.Option("filebuf", base64.StdEncoding.EncodeToString(buf))
+				msg.Cmd("remote", m.Conf("current"), "cp", "save", arg[0])
+			}
 			return
 		}},
 	},
diff --git a/src/contexts/tcp/tcp.go b/src/contexts/tcp/tcp.go
index fa77f365..2b53d04b 100644
--- a/src/contexts/tcp/tcp.go
+++ b/src/contexts/tcp/tcp.go
@@ -79,8 +79,9 @@ func (tcp *TCP) Start(m *ctx.Message, arg ...string) bool {
 		m.Log("info", "%s dial %s", m.Cap("nclient"),
 			m.Cap("stream", fmt.Sprintf("%s->%s", tcp.LocalAddr(), tcp.RemoteAddr())))
 
+		m.Sess("tcp", m)
 		m.Option("ms_source", tcp.Context.Name)
-		m.Put("option", "io", tcp).Back(m.Spawn(m.Source()))
+		m.Put("option", "io", tcp).Back()
 		return false
 
 	case "accept":
@@ -91,8 +92,9 @@ func (tcp *TCP) Start(m *ctx.Message, arg ...string) bool {
 		m.Log("info", "%s accept %s", m.Cap("nclient"),
 			m.Cap("stream", fmt.Sprintf("%s<-%s", tcp.LocalAddr(), tcp.RemoteAddr())))
 
+		m.Sess("tcp", m)
 		m.Option("ms_source", tcp.Context.Name)
-		m.Put("option", "io", tcp).Back(m.Spawn(m.Source()))
+		m.Put("option", "io", tcp).Back()
 		return false
 
 	case "listen":
@@ -118,8 +120,8 @@ func (tcp *TCP) Start(m *ctx.Message, arg ...string) bool {
 	for {
 		c, e := tcp.Accept()
 		m.Assert(e)
-		m.Spawn(Index).Put("option", "io", c).Call(func(com *ctx.Message) *ctx.Message {
-			return com.Spawn(m.Source())
+		m.Spawn(Index).Put("option", "io", c).Call(func(sub *ctx.Message) *ctx.Message {
+			return sub.Spawn(m.Source())
 		}, "accept", c.RemoteAddr().String(), m.Cap("security"), m.Cap("protocol"))
 	}