diff --git a/cluster/gce/gci/configure-helper.sh b/cluster/gce/gci/configure-helper.sh index f4b6490e9d8..6d69bc55fea 100644 --- a/cluster/gce/gci/configure-helper.sh +++ b/cluster/gce/gci/configure-helper.sh @@ -174,7 +174,9 @@ function config-ip-firewall { if [[ "${ENABLE_METADATA_CONCEALMENT:-}" == "true" ]] && [[ ! "${METADATA_CONCEALMENT_NO_FIREWALL:-}" == "true" ]]; then echo "Add rule for metadata concealment" iptables -w -t nat -I PREROUTING -p tcp ! -i eth0 -d "${METADATA_SERVER_IP}" --dport 80 -m comment --comment "metadata-concealment: bridge traffic to metadata server goes to metadata proxy" -j REDIRECT --to-ports 988 + iptables -w -t nat -I PREROUTING -p tcp ! -i eth0 -d "${METADATA_SERVER_IP}" --dport 8080 -m comment --comment "metadata-concealment: bridge traffic to metadata server goes to metadata proxy" -j REDIRECT --to-ports 987 fi + iptables -w -t raw -I OUTPUT -s 169.254.169.254 -j DROP # Log all metadata access not from approved processes. case "${METADATA_SERVER_FIREWALL_MODE:-off}" in