diff --git a/Docker/test/Module1.vb b/Docker/test/Module1.vb
index 5665b29..f5a462c 100644
--- a/Docker/test/Module1.vb
+++ b/Docker/test/Module1.vb
@@ -1,51 +1,55 @@
 #Region "Microsoft.VisualBasic::d3d37a19a2dec6b62f31fa6da5d95335, Docker\test\Module1.vb"
 
-    ' Author:
-    ' 
-    '       asuka (amethyst.asuka@gcmodeller.org)
-    '       xie (genetics@smrucc.org)
-    '       xieguigang (xie.guigang@live.com)
-    ' 
-    ' Copyright (c) 2018 GPL3 Licensed
-    ' 
-    ' 
-    ' GNU GENERAL PUBLIC LICENSE (GPL3)
-    ' 
-    ' 
-    ' This program is free software: you can redistribute it and/or modify
-    ' it under the terms of the GNU General Public License as published by
-    ' the Free Software Foundation, either version 3 of the License, or
-    ' (at your option) any later version.
-    ' 
-    ' This program is distributed in the hope that it will be useful,
-    ' but WITHOUT ANY WARRANTY; without even the implied warranty of
-    ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    ' GNU General Public License for more details.
-    ' 
-    ' You should have received a copy of the GNU General Public License
-    ' along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
-
-    ' /********************************************************************************/
-
-    ' Summaries:
-
-    ' Module Module1
-    ' 
-    '     Sub: Main
-    ' 
-    ' /********************************************************************************/
+' Author:
+' 
+'       asuka (amethyst.asuka@gcmodeller.org)
+'       xie (genetics@smrucc.org)
+'       xieguigang (xie.guigang@live.com)
+' 
+' Copyright (c) 2018 GPL3 Licensed
+' 
+' 
+' GNU GENERAL PUBLIC LICENSE (GPL3)
+' 
+' 
+' This program is free software: you can redistribute it and/or modify
+' it under the terms of the GNU General Public License as published by
+' the Free Software Foundation, either version 3 of the License, or
+' (at your option) any later version.
+' 
+' This program is distributed in the hope that it will be useful,
+' but WITHOUT ANY WARRANTY; without even the implied warranty of
+' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+' GNU General Public License for more details.
+' 
+' You should have received a copy of the GNU General Public License
+' along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+
+' /********************************************************************************/
+
+' Summaries:
+
+' Module Module1
+' 
+'     Sub: Main
+' 
+' /********************************************************************************/
 
 #End Region
 
 Imports Darwinism
+Imports Darwinism.Centos
 Imports Darwinism.Docker.Arguments
 Imports Microsoft.VisualBasic.Serialization.JSON
 
 Module Module1
 
     Sub Main()
+
+        Call testPuTTY()
+
         Dim ps As New Docker.PowerShell
 
         ' Call Console.WriteLine(ps.RunScript("docker ps"))
@@ -65,4 +69,11 @@ Module Module1
         Pause()
     End Sub
 
+    Sub testPuTTY()
+        Dim ssh As New PuTTY("xcms", "12345", "192.168.1.253")
+
+        Call Console.WriteLine(ssh.Shell("ls", "-l /bin"))
+
+        Pause()
+    End Sub
 End Module
diff --git a/Docker/test/test.vbproj b/Docker/test/test.vbproj
index 8a0d950..4636967 100644
--- a/Docker/test/test.vbproj
+++ b/Docker/test/test.vbproj
@@ -136,6 +136,10 @@
       <Project>{fecce1fd-e1d4-49e3-a668-60bb5e7aed99}</Project>
       <Name>47-dotnet_Microsoft.VisualBasic</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Centos\Centos.vbproj">
+      <Project>{04f7d21b-53e8-4107-a5e0-d28e3f70efde}</Project>
+      <Name>Centos</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Docker.vbproj">
       <Project>{b028826a-e615-4f26-b192-b9b0a997696a}</Project>
       <Name>Docker</Name>
diff --git a/docker.sln b/docker.sln
index 24d4aea..442eaf1 100644
--- a/docker.sln
+++ b/docker.sln
@@ -555,8 +555,8 @@ Global
 		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Biostack-Debug|x86.Build.0 = Debug|Any CPU
 		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|x64.Build.0 = Debug|Any CPU
+		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|x64.ActiveCfg = Debug|x64
+		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|x64.Build.0 = Debug|x64
 		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.Debug|x86.Build.0 = Debug|Any CPU
 		{04F7D21B-53E8-4107-A5E0-D28E3F70EFDE}.DEMO|Any CPU.ActiveCfg = Debug|Any CPU