diff --git a/lib/tasks/detect_sites.rake b/lib/tasks/detect_sites.rake
index bee5ca3..c736e5b 100644
--- a/lib/tasks/detect_sites.rake
+++ b/lib/tasks/detect_sites.rake
@@ -1,6 +1,7 @@
 require 'net/ssh'
 require 'pathname'
 require 'fileutils'
+require "resolv"
 namespace :create_site do
   desc "Detect sites"
   task :detect_sites,[:detect_name] => :environment do |task,args|
@@ -55,14 +56,23 @@ namespace :create_site do
               server_names_array = server_names_array.group_by{|v| v[0]}
 
               server_names_array.each do |nginx_file, server_name_with_file|
-                server_names_for_site = server_name_with_file.map{|v| v[1].split(/[ |\t]+/)}.flatten.uniq - ["localhost","127.0.0.1"]
+                org_server_names_for_site = server_name_with_file.map{|v| v[1].split(/[ |\t]+/)}.flatten.uniq
+                server_names_for_site = org_server_names_for_site - ["localhost","127.0.0.1"]
                 server_name_list = []
                 server_names_for_site.each do |server_name_for_site|
                   if !server_name_for_site.include?(domain_name)
-                    next if !`nslookup "#{server_name_for_site}"`.include?(@site_server.ip)
+                    if server_name_for_site.match(Regexp.union(Resolv::IPv4::Regex, Resolv::IPv6::Regex)).nil? #Not filter IP address
+                      next if !`nslookup "#{server_name_for_site}"`.include?(@site_server.ip)
+                    end
                   end
                   server_name_list << server_name_for_site
                 end
+                if server_name_list.blank?
+                  tmp = org_server_names_for_site & ["localhost","127.0.0.1"]
+                  if (tmp).length != 0
+                    server_name_list = tmp + [@site_server.ip]
+                  end
+                end
                 server_name = server_name_list.join(' ')
                 nginx_file_content = exec_ssh_command_by_sudo_and_see_output(ssh,"cat #{nginx_file}",false,true)
                 site_path = Pathname.new(exec_ssh_command_by_sudo_and_see_output(ssh,"echo `grep root #{nginx_file} | grep -v -e '#.*root'`",false,true).to_s.split("\n").first.to_s.strip.split(";").select{|s| s.present? && s.include?("root")}.first.split("root").last.to_s.strip).dirname.to_s rescue nil