diff --git a/bootstrap_ubuntu.sh b/bootstrap_ubuntu.sh
index 4d7b02b..0a5c1d9 100755
--- a/bootstrap_ubuntu.sh
+++ b/bootstrap_ubuntu.sh
@@ -1,5 +1,11 @@
 #!/bin/bash -x
 
+# 0. network. paste it to the machine before running this script
+# sudo echo "network: {config: disabled}" > /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
+# sudo netplan apply
+# sudo sh -c 'echo "nameserver 1.1.1.1" > /etc/resolv.conf'
+# sudo sed -i -e "s/127.0.0.1 localhost/127.0.0.1 localhost ${HOSTNAME}/" /etc/hosts
+
 # 1. update
 sudo apt update && sudo apt -y upgrade