diff --git a/.gitignore b/.gitignore
index 74dfed2..b2516a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 /backup/
 /docker-compose.yml
 /.do.cfg
+/.do-machine.cfg
 .directory
 /service
 /ispc
diff --git a/do b/do
index e068d9e..b43e3cf 100755
--- a/do
+++ b/do
@@ -1,16 +1,25 @@
 #!/bin/bash
 
-if [ ! -e ./.do.cfg ] ; then
-  echo "DO_CNAME=ispc" > ./.do.cfg
+CFG=./.do.cfg
+DMC=./.do-machine.cfg
+
+if [ ! -e $CFG ] ; then
+  echo "DO_CNAME=ispc" > $CFG
 fi
+
 SERVICEVOL=./service
-. ./.do.cfg
+. $CFG
 
 DCN=$DO_CNAME
 
+if [ -f $DMC ] ; then
+. $DMC
+fi
+
 
 if [ "$1" = "" ] ; then
   echo "usage: `basename $0` <command>"
+  echo "          setup <container-name> [<machine-name>]"
   echo "          build ............... build image"
   echo "          up .................  create <$DCN> from image"
   echo "          rm .................  remove <$DCN>"
@@ -35,6 +44,30 @@ if [ "$1" = "" ] ; then
   exit 0
 fi
 
+if [ ! -d ./build ] ; then
+  mkdir -p ./build
+fi
+
+
+if [ "$1" = "setup" ] ; then
+  if [ "$2" = "" ] ; then
+     echo "settings:"
+     cat $CFG
+     if [ -e $DMC ] ; then
+       cat $DMC
+     fi
+     exit 0
+  else
+    sed -i -e "s/^DO_CNAME=.*/DO_CNAME=$2/"       $CFG
+  fi
+  . $CFG
+  if [ "$3" != "" ] ; then
+    docker-machine env $3
+    docker-machine env $3 > $DMC
+    . $DMC
+  fi
+fi
+
 if [ "$1" = "ps" ] ; then
   docker-compose ps
 fi