diff --git a/scripts/sandbox-install b/scripts/sandbox-install
index e508663..ac71054 100644
--- a/scripts/sandbox-install
+++ b/scripts/sandbox-install
@@ -35,7 +35,7 @@ SERVICES=(
     "fstrim.service" "docker.service" "ovs-vswitchd.service" "marionnet.service"
 )
 
-SWAP_SIZE=16G
+SWAP_SIZE=16GiB
 
 # Enable time synchronization
 timedatectl set-ntp true
@@ -107,6 +107,13 @@ echo "root:root" | chpasswd
 # Install syslinux
 syslinux-install_update -iam
 
+# DNS configuration
+ln -sf ../run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
+
+# Disable multicast DNS and LLMNR
+sed -i 's/#LLMNR=no/LLMNR=no/g' /etc/systemd/resolved.conf
+sed -i 's/#MulticastDNS=no/MulticastDNS=no/g' /etc/systemd/resolved.conf
+
 # Configure the network for DHCP
 echo "[Match]
 Name=en*