diff --git a/admin/docker/docker-compose.aws.yml b/admin/docker/docker-compose.aws.yml
index c355a9ba..d8737ec7 100644
--- a/admin/docker/docker-compose.aws.yml
+++ b/admin/docker/docker-compose.aws.yml
@@ -55,7 +55,7 @@ services:
       - LOG_LEVEL=${LOG_LEVEL}
       - HSDS_ENDPOINT=${HSDS_ENDPOINT}
     ports:
-      - ${SN_PORT}:${SN_PORT}
+      - ${SN_PORT}:5101
     depends_on:
       - head
     volumes:
diff --git a/admin/docker/docker-compose.azure.yml b/admin/docker/docker-compose.azure.yml
index 9034dd7a..acaeab93 100644
--- a/admin/docker/docker-compose.azure.yml
+++ b/admin/docker/docker-compose.azure.yml
@@ -46,7 +46,7 @@ services:
       - LOG_LEVEL=${LOG_LEVEL}
       - HSDS_ENDPOINT=${HSDS_ENDPOINT}
     ports:
-      - ${SN_PORT}:${SN_PORT}
+      - ${SN_PORT}:5101
     depends_on:
       - head
     volumes:
diff --git a/admin/docker/docker-compose.posix.yml b/admin/docker/docker-compose.posix.yml
index 1b2ea3e1..0b536384 100644
--- a/admin/docker/docker-compose.posix.yml
+++ b/admin/docker/docker-compose.posix.yml
@@ -44,7 +44,7 @@ services:
       - BUCKET_NAME=${BUCKET_NAME}
       - HSDS_ENDPOINT=${HSDS_ENDPOINT}
     ports:
-      - ${SN_PORT}:${SN_PORT}
+      - ${SN_PORT}:5101
     depends_on:
       - head
     volumes:
diff --git a/hsds/servicenode.py b/hsds/servicenode.py
index 312fd54c..a95e7f8a 100755
--- a/hsds/servicenode.py
+++ b/hsds/servicenode.py
@@ -252,7 +252,17 @@ def main():
         sn_port = getPortFromUrl(sn_url)
     else:
         # create TCP url based on port address
-        sn_port = int(config.get("sn_port"))
+        sn_port_config = config.get("sn_port")
+        if isinstance(sn_port_config, str) and sn_port_config.find("-") > 0:
+            # multi-port mapping. e.g.: 5101-5104:5101
+            # just use the first int of the target port range
+            mapping = sn_port_config.split(":")
+            target_ports = mapping[0].split("-")
+            sn_port = int(target_ports[0])
+        else:
+            # regular port config
+            sn_port = int(config.get("sn_port"))
+
         sn_url = f"http://localhost:{sn_port}"
 
     if isUnixDomainUrl(sn_url):
diff --git a/runall.sh b/runall.sh
index 0ee7c69b..ac730686 100755
--- a/runall.sh
+++ b/runall.sh
@@ -211,10 +211,30 @@ else
     docker-compose -f ${COMPOSE_FILE} up -d --scale sn=${SN_CORES} --scale dn=${DN_CORES}
   fi
 
+  # get a url to one of the SN containers
+  # if SN_PORT is just an integer (like 5101), return that
+  # if it's a port range like: 5101-5104:5101, return first port (5101 in this case)
+  ports=$(echo $SN_PORT | tr ":" "\n")
+
+  for port_range in $ports
+  do
+    break
+  done
+
+  port_numbers=$(echo $port_range | tr "-" "\n")
+  for port_number in $port_numbers
+  do
+      break
+  done
+
+
   # wait for the server to be ready
+  LOCAL_ENDPOINT="http://localhost:${port_number}"
+  echo "sending status request to: ${LOCAL_ENDPOINT}"
   for i in {1..120}
   do
-    STATUS_CODE=`curl -s -o /dev/null -w "%{http_code}" http://localhost:${SN_PORT}/about`
+    
+    STATUS_CODE=`curl -s -o /dev/null -w "%{http_code}" ${LOCAL_ENDPOINT}/about`
     if [[ $STATUS_CODE == "200" ]]; then
       echo "service ready!"
       break