diff --git a/dbfilter_from_header/__init__.py b/dbfilter_from_header/__init__.py
new file mode 100644
index 000000000..00ccc56d5
--- /dev/null
+++ b/dbfilter_from_header/__init__.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    This module copyright (C) 2013 Therp BV (<http://therp.nl>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+import re
+from openerp.addons.web.controllers import main as web_main
+
+db_list_org = web_main.db_list
+
+def db_list(req, force=False):
+    db_filter = req.httprequest.environ.get('HTTP_X_OPENERP_DBFILTER', '.*')
+    dbs = db_list_org(req, force=force)
+    return [db for db in dbs if re.match(db_filter, db)]
+
+web_main.db_list = db_list
diff --git a/dbfilter_from_header/__openerp__.py b/dbfilter_from_header/__openerp__.py
new file mode 100644
index 000000000..7baf1f9e7
--- /dev/null
+++ b/dbfilter_from_header/__openerp__.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    This module copyright (C) 2013 Therp BV (<http://therp.nl>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+{
+    "name" : "dbfilter_from_header",
+    "version" : "1.0",
+    "author" : "Therp BV",
+    "complexity": "normal",
+    "description": """
+    This addon lets you pass a dbfilter as a HTTP header.
+
+    This is interesting for setups where database names can't be mapped to 
+    proxied host names.
+
+    In nginx, use
+    proxy_set_header X-OpenERP-dbfilter [your filter];
+
+    The addon has to be loaded as server-wide module.
+    """,
+    "category" : "Tools",
+    "depends" : [
+        'web',
+    ],
+    "data" : [
+    ],
+    "js": [
+    ],
+    "css": [
+    ],
+    "auto_install": False,
+    "installable": True,
+    "external_dependencies" : {
+        'python' : [],
+    },
+}