diff --git a/data/apps/common/redis.cfg b/data/apps/common/redis.cfg
index a2f1fbc..3890607 100644
--- a/data/apps/common/redis.cfg
+++ b/data/apps/common/redis.cfg
@@ -4,11 +4,6 @@
         , "read_timeout" : 0.01
         , "ping_timeout_secs": 2.0
     }
-    , "cloud17": {
-        "url": "redis://cloud17.cvtt.vpn"
-        , "read_timeout" : 0.01
-        , "ping_timeout_secs": 2.0
-    }
     , "cvttdata": {
         "url": "redis://cvttdata.cvtt.vpn"
         , "read_timeout" : 0.01
@@ -29,4 +24,9 @@
         , "read_timeout" : 0.01
         , "ping_timeout_secs": 2.0
     }
+    , "cvtt-prod-eqty-01": {
+        "url": "redis://cvtt-prod-eqty-01.cvtt.vpn"
+        , "read_timeout" : 0.01
+        , "ping_timeout_secs": 2.0
+    }
 }
diff --git a/data/apps/md_portal.cfg b/data/apps/md_portal.cfg
index 9041b2e..48c0137 100644
--- a/data/apps/md_portal.cfg
+++ b/data/apps/md_portal.cfg
@@ -1,4 +1,4 @@
-@var CONFIG_SVC_HOST=cloud16.cvtt.vpn
+@var CONFIG_SVC_HOST=cloud23.cvtt.vpn
 
 {
     # ----------------------------------
diff --git a/data/refdata/exchanges.cfg b/data/refdata/exchanges.cfg
index 56689ed..e4fd5f4 100644
--- a/data/refdata/exchanges.cfg
+++ b/data/refdata/exchanges.cfg
@@ -70,7 +70,7 @@
         }
         , "mktdata" : {
             "class":     "cvttpy.exchanges.proxies.md_portal_clnt.mkt_data.MktDataPortalFeed"
-            , "portal_name": "MD_PORTAL_ALPACA_02"
+            , "portal_name": "MD_PORTAL_ALPACA_SNDBX"
 
             # allow direct REST requests
             , "REST": {
@@ -397,6 +397,17 @@
         }
     }
     # ---------------------------- M
+    , "MD_PORTAL_ALPACA_SNDBX": {
+        "exchange_id":          "MD_PORTAL"
+        , "name":               "MD Portal (proxy)"
+        , "type":               "PROXY"
+
+        , "mktdata" : {
+            "class":    "cvttpy.exchanges.proxies.md_portal_clnt.mkt_data.MktDataPortalFeed"
+            , "redis_settings": "cvtt-prod-eqty-01"
+            , "channel_prefix": "MD_ALPACA_SNDBX"
+        }
+    }
     , "MD_PORTAL_ALPACA_02": {
         "exchange_id":          "MD_PORTAL"
         , "name":               "MD Portal (proxy)"