diff --git a/cmd/web.go b/cmd/web.go
index 36e3ddf..57f53c5 100644
--- a/cmd/web.go
+++ b/cmd/web.go
@@ -11,6 +11,7 @@ import (
     "github.com/ouqiang/gocron/modules/logger"
     "github.com/ouqiang/gocron/service"
     "github.com/ouqiang/gocron/models"
+    "github.com/ouqiang/gocron/modules/setting"
 )
 
 // web服务器默认端口
@@ -56,6 +57,13 @@ func initModule()  {
     if !app.Installed {
         return
     }
+
+    config, err := setting.Read(app.AppConfig)
+    if err != nil {
+        logger.Fatal("读取应用配置失败", err)
+    }
+    app.Setting = config
+
     models.Db = models.CreateDb()
 
     // 初始化定时任务
diff --git a/models/model.go b/models/model.go
index 5e0058e..326a3bb 100644
--- a/models/model.go
+++ b/models/model.go
@@ -9,7 +9,6 @@ import (
     "strings"
     "time"
     "github.com/ouqiang/gocron/modules/logger"
-    "github.com/ouqiang/gocron/modules/setting"
     "github.com/ouqiang/gocron/modules/app"
 )
 
@@ -124,23 +123,15 @@ func keepDbAlived(engine *xorm.Engine)  {
 
 // 获取数据库配置
 func getDbConfig() map[string]string {
-    config, err := setting.Read(app.AppConfig)
-    if err != nil {
-        logger.Fatal("获取应用配置失败", err)
-    }
-    section := config.Section("db")
-    if err != nil {
-        logger.Fatal("获取DB配置失败", err)
-    }
     var db map[string]string = make(map[string]string)
-    db["user"] = section.Key("user").String()
-    db["password"] = section.Key("password").String()
-    db["host"] = section.Key("host").String()
-    db["port"] = section.Key("port").String()
-    db["database"] = section.Key("database").String()
-    db["charset"] = section.Key("charset").String()
-    db["prefix"] = section.Key("prefix").String()
-    db["engine"] = section.Key("engine").String()
+    db["user"] = app.Setting.Key("db.user").String()
+    db["password"] = app.Setting.Key("db.password").String()
+    db["host"] = app.Setting.Key("db.host").String()
+    db["port"] = app.Setting.Key("db.port").String()
+    db["database"] = app.Setting.Key("db.database").String()
+    db["charset"] = app.Setting.Key("db.charset").String()
+    db["prefix"] = app.Setting.Key("db.prefix").String()
+    db["engine"] = app.Setting.Key("db.engine").String()
 
     return db
 }
\ No newline at end of file
diff --git a/modules/app/app.go b/modules/app/app.go
index da9203c..7ed189f 100644
--- a/modules/app/app.go
+++ b/modules/app/app.go
@@ -6,6 +6,7 @@ import (
     "github.com/ouqiang/gocron/modules/logger"
     "runtime"
     "github.com/ouqiang/gocron/modules/utils"
+    "gopkg.in/ini.v1"
 )
 
 var (
@@ -15,6 +16,7 @@ var (
     DataDir      string // 存放session等
     AppConfig    string // 应用配置文件
     Installed    bool   // 应用是否安装过
+    Setting      *ini.Section // 应用配置
 )
 
 func InitEnv() {
@@ -47,7 +49,7 @@ func IsInstalled() bool {
 func CreateInstallLock() error {
     _, err := os.Create(ConfDir + "/install.lock")
     if err != nil {
-        logger.Error("创建安装锁文件失败")
+        logger.Error("创建安装锁文件conf/install.lock失败")
     }
 
     return err
diff --git a/modules/httpclient/http_client.go b/modules/httpclient/http_client.go
index c6d75c9..daf3234 100644
--- a/modules/httpclient/http_client.go
+++ b/modules/httpclient/http_client.go
@@ -62,7 +62,6 @@ func request(req *http.Request, timeout int) ResponseWrapper {
 }
 
 func setRequestHeader(req *http.Request)  {
-    req.Header.Set("Connection", "keep-alive")
     req.Header.Set("Accept-Language", "zh-CN,zh;q=0.8,en;q=0.6")
     req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36 golang/gocron")
 }
diff --git a/modules/setting/setting.go b/modules/setting/setting.go
index 457a429..e40ffdb 100644
--- a/modules/setting/setting.go
+++ b/modules/setting/setting.go
@@ -5,39 +5,41 @@ import (
     "gopkg.in/ini.v1"
 )
 
-// 读取配置
-func Read(filename string) (config *ini.File, err error) {
-    config, err = ini.Load(filename)
-    if err != nil {
-        return
-    }
+const DefaultSection = "default"
 
-    return
+// 读取配置
+func Read(filename string) (*ini.Section,error) {
+    config, err := ini.Load(filename)
+    if err != nil {
+        return nil, err
+    }
+    section := config.Section(DefaultSection)
+
+    return section, nil
 }
 
 // 写入配置
-func Write(config map[string]map[string]string, filename string) error {
+func Write(config map[string]string, filename string) error {
     if len(config) == 0 {
         return errors.New("参数不能为空")
     }
 
     file := ini.Empty()
-    for sectionName, items := range config {
-        if sectionName == "" {
-            return errors.New("节名称不能为空")
+
+    section, err := file.NewSection(DefaultSection)
+    if err != nil {
+        return err
+    }
+    for key, value := range config {
+        if key == "" {
+            continue
         }
-        section, err := file.NewSection(sectionName)
+        _, err = section.NewKey(key, value)
         if err != nil {
             return err
         }
-        for key, value := range items {
-            _, err = section.NewKey(key, value)
-            if err != nil {
-                return err
-            }
-        }
     }
-    err := file.SaveTo(filename)
+    err = file.SaveTo(filename)
 
     return err
 }
diff --git a/modules/ssh/ssh.go b/modules/ssh/ssh.go
index e0ea10d..885d455 100644
--- a/modules/ssh/ssh.go
+++ b/modules/ssh/ssh.go
@@ -89,7 +89,7 @@ func Exec(sshConfig SSHConfig, cmd string) (output string, err error) {
     // 后台运行
     if  sshConfig.ExecTimeout < 0 {
         go session.CombinedOutput(cmd)
-        time.Sleep(5 * time.Second)
+        time.Sleep(3 * time.Second)
         return "", nil
     }
     // 不限制超时
diff --git a/modules/utils/utils.go b/modules/utils/utils.go
index 70c2c19..0430ed1 100644
--- a/modules/utils/utils.go
+++ b/modules/utils/utils.go
@@ -91,8 +91,9 @@ func ReplaceStrings(s string, old []string, replace []string) string  {
 }
 
 func InStringSlice(slice []string, element string) bool {
+    element = strings.TrimSpace(element)
     for _, v := range slice {
-        if v == element {
+        if strings.TrimSpace(v) == element{
             return true
         }
     }
diff --git a/routers/install/install.go b/routers/install/install.go
index 87926ac..081073f 100644
--- a/routers/install/install.go
+++ b/routers/install/install.go
@@ -7,8 +7,6 @@ import (
     "github.com/ouqiang/gocron/modules/utils"
     "gopkg.in/macaron.v1"
     "strconv"
-    "github.com/ouqiang/gocron/modules/logger"
-    "github.com/go-macaron/binding"
     "fmt"
     "github.com/ouqiang/gocron/service"
 )
@@ -29,10 +27,6 @@ type InstallForm struct {
     AdminEmail    string `binding:"Required;Email;MaxSize(50)"`
 }
 
-func(f InstallForm) Error(ctx *macaron.Context, errs binding.Errors)  {
-    logger.Error(errs)
-}
-
 func Create(ctx *macaron.Context) {
     if app.Installed {
         ctx.Redirect("/")
@@ -61,6 +55,12 @@ func Store(ctx *macaron.Context, form InstallForm) string {
         return json.CommonFailure("数据库配置写入文件失败", err)
     }
 
+    appConfig, err := setting.Read(app.AppConfig)
+    if err != nil {
+        return json.CommonFailure("读取应用配置失败", err)
+    }
+    app.Setting = appConfig
+
     models.Db = models.CreateDb()
     // 创建数据库表
     migration := new(models.Migration)
@@ -89,19 +89,18 @@ func Store(ctx *macaron.Context, form InstallForm) string {
     return json.Success("安装成功", nil)
 }
 
-// 数据库配置写入文件
+// 配置写入文件
 func writeConfig(form InstallForm) error {
-    dbConfig := map[string]map[string]string{
-        "db": map[string]string{
-            "engine":   form.DbType,
-            "host":     form.DbHost,
-            "port":     strconv.Itoa(form.DbPort),
-            "user":     form.DbUsername,
-            "password": form.DbPassword,
-            "database": form.DbName,
-            "prefix":   form.DbTablePrefix,
-            "charset":  "utf8",
-        },
+    dbConfig := map[string]string{
+        "db.engine":   form.DbType,
+        "db.host":     form.DbHost,
+        "db.port":     strconv.Itoa(form.DbPort),
+        "db.user":     form.DbUsername,
+        "db.password": form.DbPassword,
+        "db.database": form.DbName,
+        "db.prefix":   form.DbTablePrefix,
+        "db.charset":  "utf8",
+        "allow_ips" : "",
     }
 
     return setting.Write(dbConfig, app.AppConfig)
diff --git a/routers/routers.go b/routers/routers.go
index a5c867d..e2d8609 100644
--- a/routers/routers.go
+++ b/routers/routers.go
@@ -142,6 +142,7 @@ func RegisterMiddleware(m *macaron.Macaron) {
     m.Use(csrf.Csrfer())
     m.Use(toolbox.Toolboxer(m))
     checkAppInstall(m)
+    ipAuth(m)
     userAuth(m)
     setShareData(m)
 }
@@ -159,6 +160,20 @@ func checkAppInstall(m *macaron.Macaron)  {
     })
 }
 
+// IP验证, 通过反向代理访问gocron，需设置Header X-Real-IP才能获取到客户端真实IP
+func ipAuth(m *macaron.Macaron)  {
+    m.Use(func(ctx *macaron.Context) {
+        allowIpsStr := app.Setting.Key("allow_ips").String()
+        if allowIpsStr == "" {
+            return
+        }
+        clientIp := ctx.RemoteAddr()
+        if !utils.InStringSlice(allowIps, clientIp) {
+           ctx.Status(403)
+        }
+    })
+}
+
 // 用户认证
 func userAuth(m *macaron.Macaron)  {
     m.Use(func(ctx *macaron.Context, sess session.Store) {
@@ -167,7 +182,7 @@ func userAuth(m *macaron.Macaron)  {
         }
         uri := ctx.Req.URL.Path
         found := false
-        excludePaths := []string{"/install", "/user/login", "/"}
+        excludePaths := []string{"/install", "/user/login", "/api"}
         for _, path := range excludePaths {
             if strings.HasPrefix(uri, path) {
                 found = true
@@ -199,14 +214,6 @@ func setShareData(m *macaron.Macaron)  {
     })
 }
 
-// 管理员认证
-func adminAuth(ctx *macaron.Context, sess session.Store)  {
-    if !user.IsAdmin(sess) {
-        ctx.Data["Title"] = "无权限访问此页面"
-        ctx.HTML(403, "error/no_permission")
-    }
-}
-
 func isAjaxRequest(ctx *macaron.Context) bool {
     req := ctx.Req.Header.Get("X-Requested-With")
     if req == "XMLHttpRequest" {
diff --git a/service/task.go b/service/task.go
index 0fe50f2..a05c0ef 100644
--- a/service/task.go
+++ b/service/task.go
@@ -57,7 +57,7 @@ func (task *Task) Initialize() {
     taskModel := new(models.Task)
     taskList, err := taskModel.ActiveList()
     if err != nil {
-        logger.Error("获取任务列表错误-", err.Error())
+        logger.Error("定时任务初始化#获取任务列表错误-", err.Error())
         return
     }
     if len(taskList) == 0 {
diff --git a/templates/error/no_permission.html b/templates/error/no_permission.html
deleted file mode 100644
index 3fdc4ca..0000000
--- a/templates/error/no_permission.html
+++ /dev/null
@@ -1,12 +0,0 @@
-{{{ template "common/header" . }}}
-<script>
-    swal({
-                title: "403 - FORBIDDEN",
-                text: "您无权限访问此页面",
-                type: "warning"
-            },
-            function(){
-                location.href = "/"
-            });
-</script>
-{{{ template "common/footer" . }}}
\ No newline at end of file
diff --git a/templates/task/task_form.html b/templates/task/task_form.html
index 74658ab..35ac58e 100644
--- a/templates/task/task_form.html
+++ b/templates/task/task_form.html
@@ -66,13 +66,13 @@
                 <textarea rows="5" name="command">{{{.Task.Command}}}</textarea>
             </div>
         </div>
-        <div class="three fields">
+        <div class="six fields">
             <div class="field">
                 <label>任务超时时间(秒)</label>
                 <input type="text"  name="timeout"  value="{{{.Task.Timeout}}}">
             </div>
         </div>
-        <div class="two fields">
+        <div class="six fields">
             <div class="field">
                 <label>任务失败重试次数</label>
                 <input type="text"  name="retry_times"  value="{{{.Task.RetryTimes}}}">
@@ -143,7 +143,7 @@
         </div>
     </div>
     {{else}}
-    <a class="ui blue button" href="/manage/mail/edit">邮箱配置</a><br><br>
+    <a class="ui blue button" href="/manage/mail/edit" target="_blank">邮箱配置</a><br><br>
     {{/each}}
 </script>
 
@@ -156,7 +156,7 @@
         </div>
     </div>
     {{else}}
-        <a class="ui blue button" href="/manage/slack/edit">Slack配置</a>
+        <a class="ui blue button" href="/manage/slack/edit" target="_blank">Slack配置</a>
     {{/each}}
 </script>