diff --git a/app/controllers/admin/plow_controller.rb b/app/controllers/admin/plow_controller.rb
index 2ea2c39..46134b0 100644
--- a/app/controllers/admin/plow_controller.rb
+++ b/app/controllers/admin/plow_controller.rb
@@ -36,9 +36,9 @@ class Admin::PlowController < OrbitAdminController
       scheme = uri.scheme
       Thread.new do
         if !ip.blank?
-          `#{Binary} #{scheme}://#{ip}#{uri.request_uri} --host=#{host} --listen=#{SocketFile} -c#{concurrent} --summary > #{LogFile}`
+          `ulimit -n100000 && #{Binary} #{scheme}://#{ip}#{uri.request_uri} --host=#{host} --listen=#{SocketFile} -c#{concurrent} --summary > #{LogFile}`
         else
-          `#{Binary} #{@setting.url} --listen=#{SocketFile} -c#{concurrent} --summary > #{LogFile}`
+          `ulimit -n100000 && #{Binary} #{@setting.url} --listen=#{SocketFile} -c#{concurrent} --summary > #{LogFile}`
         end
       end
       max_wait = 10