diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index f085032c3..f507190ca 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -2344,9 +2344,9 @@ module ApplicationHelper
     homework = default_opt[:homework]
     work = cur_user_works_for_homework homework
     if work.nil? && !is_teacher
-      link_to "提交("+homework.student_works.count.to_s+")", new_student_work_path(:homework => homework.id), :class=> default_opt[:class]
+      link_to "提交("+homework.student_works.count.to_s+")", new_student_work_path(:homework => homework.id,:host=> Setting.host_course), :class=> default_opt[:class]
     else
-      link_to "提交("+homework.student_works.count.to_s+")", student_work_index_path(:homework => homework.id), :class=> default_opt[:class]
+      link_to "提交("+homework.student_works.count.to_s+")", student_work_index_path(:homework => homework.id,:host=> Setting.host_course), :class=> default_opt[:class]
     end
   end
 
diff --git a/app/views/layouts/new_base_user.html.erb b/app/views/layouts/new_base_user.html.erb
index 77d54b3c0..b86838c0b 100644
--- a/app/views/layouts/new_base_user.html.erb
+++ b/app/views/layouts/new_base_user.html.erb
@@ -103,7 +103,7 @@
           <a href="javascript:void(0);" class="homepageMenuText" onclick="$('#homepageLeftMenuCourses').slideToggle();">课程</a>
           <% if is_current_user%>
               <% if User.current.user_extensions && User.current.user_extensions.identity == 0 && User.current.allowed_to?(:add_course, nil, :global => true)%>
-                  <%=link_to "", new_course_path, :class => "homepageMenuSetting fr", :title => "新建课程"%>
+                  <%=link_to "", new_course_path(:host=> Setting.host_course), :class => "homepageMenuSetting fr", :title => "新建课程"%>
               <% else%>
                   <%=link_to "", join_private_courses_courses_path, :class => "homepageMenuSetting fr",:remote => true, :title => "加入课程"%>
               <% end%>
@@ -119,7 +119,7 @@
           <a href="javascript:void(0);" class="homepageMenuText" onclick="$('#homepageLeftMenuForge').slideToggle();">项目</a>
 
           <% if is_current_user%>
-              <%=link_to "", new_project_path, :class => "homepageMenuSetting fr", :title => "新建项目"%>
+              <%=link_to "", new_project_path(:host=> Setting.host_name), :class => "homepageMenuSetting fr", :title => "新建项目"%>
           <% end%>
         </div>
         <% projects = @user.projects.visible.select("projects.*,(SELECT MAX(created_at)  FROM `forge_activities` WHERE forge_activities.project_id = projects.id) AS a").order("a desc").limit(5)%>
@@ -130,7 +130,7 @@
         </div>
         <div class="homepageLeftMenuBlock">
           <!--<a href="javascript:void(0);" class="homepageMenuText">留言</a>-->
-          <%= link_to '留言',feedback_path(@user),:class=>'homepageMenuText'%>
+          <%= link_to '留言',feedback_path(@user, :host=> Setting.host_user),:class=>'homepageMenuText'%>
         </div>
       </div>
       <div class="homepageLeftLabelContainer">
diff --git a/app/views/users/_course_homework.html.erb b/app/views/users/_course_homework.html.erb
index b1ca2838a..58b29696c 100644
--- a/app/views/users/_course_homework.html.erb
+++ b/app/views/users/_course_homework.html.erb
@@ -6,14 +6,14 @@
     <div class="homepagePostDes">
       <div class="homepagePostTo break_word">
         <% if activity.try(:user).try(:realname) == ' ' %>
-            <%= link_to activity.try(:user), user_path(activity.user_id), :class => "newsBlue mr15" %>
+            <%= link_to activity.try(:user), user_path(activity.user_id,:host=>Setting.host_user), :class => "newsBlue mr15" %>
         <% else %>
-            <%= link_to activity.try(:user).try(:realname), user_path(activity.user_id), :class => "newsBlue mr15" %>
+            <%= link_to activity.try(:user).try(:realname), user_path(activity.user_id,:host=>Setting.host_user), :class => "newsBlue mr15" %>
         <% end %> TO <!--+"(课程名称)" -->
-        <%= link_to activity.course.name.to_s+" | 课程作业", homework_common_index_path(:course => activity.course.id), :class => "newsBlue ml15"%>
+        <%= link_to activity.course.name.to_s+" | 课程作业", homework_common_index_path(:course => activity.course.id, :host=> Setting.host_course), :class => "newsBlue ml15"%>
       </div>
       <div class="homepagePostTitle break_word"> <!--+"(作业名称)"-->
-        <%= link_to activity.name.to_s, student_work_index_path(:homework => activity.id), :class => "postGrey"%>
+        <%= link_to activity.name.to_s, student_work_index_path(:homework => activity.id,:host=> Setting.host_course), :class => "postGrey"%>
       </div>
       <div class="homepagePostSubmitContainer">
         <div class="homepagePostSubmit">
diff --git a/app/views/users/_course_message.html.erb b/app/views/users/_course_message.html.erb
index e98d8fe79..f0c03b904 100644
--- a/app/views/users/_course_message.html.erb
+++ b/app/views/users/_course_message.html.erb
@@ -1,23 +1,23 @@
 <div class="resources mt10" id="user_activity_<%= user_activity_id%>">
   <div class="homepagePostBrief">
     <div class="homepagePostPortrait">
-      <%= link_to image_tag(url_to_avatar(activity.author), :width => "50", :height => "50"), user_path(activity.author_id), :alt => "用户头像" %>
+      <%= link_to image_tag(url_to_avatar(activity.author), :width => "50", :height => "50"), user_path(activity.author_id,:host=>Setting.host_user), :alt => "用户头像" %>
     </div>
     <div class="homepagePostDes">
       <div class="homepagePostTo break_word">
         <% if activity.try(:author).try(:realname) == ' ' %>
-            <%= link_to activity.try(:author), user_path(activity.author_id), :class => "newsBlue mr15" %>
+            <%= link_to activity.try(:author), user_path(activity.author_id,:host=>Setting.host_user), :class => "newsBlue mr15" %>
         <% else %>
-            <%= link_to activity.try(:author).try(:realname), user_path(activity.author_id), :class => "newsBlue mr15" %>
+            <%= link_to activity.try(:author).try(:realname), user_path(activity.author_id,:host=>Setting.host_user), :class => "newsBlue mr15" %>
         <% end %>
         TO
-        <%= link_to activity.course.name.to_s+" | 课程讨论区", course_boards_path(activity.course), :class => "newsBlue ml15 mr5"%>
+        <%= link_to activity.course.name.to_s+" | 课程讨论区", course_boards_path(activity.course,:host=> Setting.host_course), :class => "newsBlue ml15 mr5"%>
       </div>
       <div class="homepagePostTitle break_word">
         <% if activity.parent_id.nil? %> <!--+"(帖子标题)"-->
-            <%= link_to activity.subject.to_s.html_safe, course_boards_path(activity.course,:parent_id =>activity.id, :topic_id => activity.id), :class=> "postGrey" %>
+            <%= link_to activity.subject.to_s.html_safe, course_boards_path(activity.course,:parent_id =>activity.id, :topic_id => activity.id,:host=> Setting.host_course), :class=> "postGrey" %>
         <% else %>
-            <%= link_to activity.parent.subject.to_s.html_safe, course_boards_path(activity.course,:parent_id =>activity.parent_id, :topic_id => activity.id), :class=> "postGrey"%>
+            <%= link_to activity.parent.subject.to_s.html_safe, course_boards_path(activity.course,:parent_id =>activity.parent_id, :topic_id => activity.id,:host=> Setting.host_course), :class=> "postGrey"%>
         <% end %>
       </div>
       <div class="homepagePostDate">
@@ -75,14 +75,14 @@
                 <% replies_all_i=replies_all_i+1 %>
                 <li class="homepagePostReplyContainer" nhname="reply_rec" style="display:<%= replies_all_i>2 ? 'none' : '' %>">
                   <div class="homepagePostReplyPortrait">
-                    <%= link_to image_tag(url_to_avatar(reply.author), :width => "33", :height => "33", :class =>"mt8"), user_path(reply.author_id), :alt => "用户头像" %>
+                    <%= link_to image_tag(url_to_avatar(reply.author), :width => "33", :height => "33", :class =>"mt8"), user_path(reply.author_id,:host=>Setting.host_user), :alt => "用户头像" %>
                   </div>
                   <div class="homepagePostReplyDes">
                     <div class="homepagePostReplyPublisher">
                       <% if reply.try(:author).try(:realname) == ' ' %>
-                          <%= link_to reply.try(:author), user_path(reply.author_id), :class => "newsBlue mr10 f14" %>
+                          <%= link_to reply.try(:author), user_path(reply.author_id,:host=>Setting.host_user), :class => "newsBlue mr10 f14" %>
                       <% else %>
-                          <%= link_to reply.try(:author).try(:realname), user_path(reply.author_id), :class => "newsBlue mr10 f14" %>
+                          <%= link_to reply.try(:author).try(:realname), user_path(reply.author_id,:host=>Setting.host_user), :class => "newsBlue mr10 f14" %>
                       <% end %>
                       <%= format_time(reply.created_on) %>
                     </div>