diff --git a/class/public.py b/class/public.py
index 3f5b4a9f..3e695bb1 100644
--- a/class/public.py
+++ b/class/public.py
@@ -734,10 +734,10 @@ def checkWebConfig():
             if os.path.exists(f3): os.remove(f3)
 
     if get_webserver() == 'nginx':
-        result = ExecShell("ulimit -n 8192 && /www/server/nginx/sbin/nginx -t -c /www/server/nginx/conf/nginx.conf");
+        result = ExecShell("ulimit -n 8192 ; /www/server/nginx/sbin/nginx -t -c /www/server/nginx/conf/nginx.conf");
         searchStr = 'successful'
     else:
-        result = ExecShell("ulimit -n 8192 && /www/server/apache/bin/apachectl -t");
+        result = ExecShell("ulimit -n 8192 ; /www/server/apache/bin/apachectl -t");
         searchStr = 'Syntax OK'
     
     if result[1].find(searchStr) == -1:
@@ -1226,4 +1226,30 @@ def mod_reload(mode):
             import imp
             imp.reload(module)
         return True
-    except: return False
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+    except: return False
+
+#设置权限
+def set_mode(filename,mode):
+    if not os.path.exists(filename): return False
+    mode = int(str(mode),8)
+    os.chmod(filename,mode)
+    return True
+
+
+#设置用户组
+def set_own(filename,user,group=None):
+    if not os.path.exists(filename): return False
+    from pwd import getpwnam
+    try:
+        user_info = getpwnam(user)
+        user = user_info.pw_uid
+        if group:
+            user_info = getpwnam(group)
+        group = user_info.pw_gid
+    except:
+        #如果指定用户或组不存在，则使用www
+        user_info = getpwnam('www')
+        user = user_info.pw_uid
+        group = user_info.pw_gid
+    os.chown(filename,user,group)
+    return True
\ No newline at end of file