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Name	Size	Permission
60-gce-network-security.conf	2.03 KB	-rw-r--r--
90-webshield-ip-local-reserved...	98 B	-rw-r--r--
99-network-protect.conf	325 B	-rw-r--r--
99-network-security.conf	242 B	-rw-r--r--
99-sysctl.conf	449 B	-rw-r--r--
cloudlinux-linksafe.conf	192 B	-rw-r--r--

Code Editor : 60-gce-network-security.conf

# Copyright 2016 Google Inc. All Rights Reserved.
#
# 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
#
# http://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.
#
# Google-recommended kernel parameters

# Turn on SYN-flood protections.  Starting with 2.6.26, there is no loss
# of TCP functionality/features under normal conditions.  When flood
# protections kick in under high unanswered-SYN load, the system
# should remain more stable, with a trade off of some loss of TCP
# functionality/features (e.g. TCP Window scaling).
net.ipv4.tcp_syncookies=1

# Ignore source-routed packets
net.ipv4.conf.all.accept_source_route=0
net.ipv4.conf.default.accept_source_route=0

# Ignore ICMP redirects from non-GW hosts
net.ipv4.conf.all.accept_redirects=0
net.ipv4.conf.default.accept_redirects=0
net.ipv4.conf.all.secure_redirects=1
net.ipv4.conf.default.secure_redirects=1

# Don't pass traffic between networks or act as a router
net.ipv4.ip_forward=0
net.ipv4.conf.all.send_redirects=0
net.ipv4.conf.default.send_redirects=0

# Turn on Source Address Verification in all interfaces to
# prevent some spoofing attacks.
net.ipv4.conf.all.rp_filter=1
net.ipv4.conf.default.rp_filter=1

# Ignore ICMP broadcasts to avoid participating in Smurf attacks
net.ipv4.icmp_echo_ignore_broadcasts=1

# Ignore bad ICMP errors
net.ipv4.icmp_ignore_bogus_error_responses=1

# Log spoofed, source-routed, and redirect packets
net.ipv4.conf.all.log_martians=1
net.ipv4.conf.default.log_martians=1

# Addresses of mmap base, heap, stack and VDSO page are randomized
kernel.randomize_va_space=2

# Reboot the machine soon after a kernel panic.
kernel.panic=10

${this.title}

Code Editor : 60-gce-network-security.conf