add initial setup scripts used for by-02 host (vpnwg.ulakar.com)

hosts/lab-by-02/setup_ufw.sh

@@ -0,0 +1,12 @@
+echo "== UFW =="
+apt-get install -y ufw
+
+ufw default deny incoming
+ufw default allow outgoing
+ufw allow 22/tcp
+ufw allow 80/tcp
+ufw allow 443/tcp
+# enable with interactive = off
+echo "y" | ufw enable
+
+echo "== UFW enabled =="