| #!/bin/bash |
| # Copyright 2021 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| ## Section: 3.2.2 Ensure ICMP redirects are not accepted ## |
| sysctl -w net.ipv4.conf.all.accept_redirects=0 |
| sysctl -w net.ipv4.conf.default.accept_redirects=0 |
| sysctl -w net.ipv4.route.flush=1 |
| sysctl -w net.ipv6.conf.all.accept_redirects=0 |
| sysctl -w net.ipv6.conf.default.accept_redirects=0 |
| sysctl -w net.ipv6.route.flush=1 |
