 If you are unsure, try setting them in `dotspacemacs/user-config' first."
   (setenv "PATH" (concat (getenv "PATH") ":/usr/local/bin"))
   (setq exec-path (append exec-path '("/usr/local/bin")))
-  (setq configuration-layer-elpa-archives  
-        '(("melpa-cn" . "http://mirrors.tuna.tsinghua.edu.cn/elpa/melpa/")  
-          ("org-cn"   . "http://mirrors.tuna.tsinghua.edu.cn/elpa/org/")  
-          ("gnu-cn"   . "http://mirrors.tuna.tsinghua.edu.cn/elpa/gnu/")))
+  ;; (setq configuration-layer-elpa-archives  
+  ;;       '(("melpa-cn" . "http://mirrors.tuna.tsinghua.edu.cn/elpa/melpa/")  
+  ;;         ("org-cn"   . "http://mirrors.tuna.tsinghua.edu.cn/elpa/org/")  
+  ;;         ("gnu-cn"   . "http://mirrors.tuna.tsinghua.edu.cn/elpa/gnu/")))
 
   ;; proxy
   (setq url-proxy-services '(("no_proxy" . "127.0.0.1")
-                             ("http" . "127.0.0.1:55225")
-                             ("https" . "127.0.0.1:55225")
+                             ("http" . "127.0.0.1:50021")
+                             ("https" . "127.0.0.1:50021")
                               ))
  
   )


  ;; flycheck
  ;; use American English as ispell default dictionary
  (ispell-change-dictionary "american" t)

  ;; switch window
  ;; (setq-default switch-window-shortcut-style 'alphabet)

     ;;        shell-default-height 30
     ;;        shell-default-position 'bottom)
     spell-checking
     (spell-checking :variables spell-checking-enable-by-default nil
                     ispell-dictionary "american")
     
     syntax-checking
     better-defaults
     command-log
