67 lines
2.2 KiB
Plaintext
67 lines
2.2 KiB
Plaintext
|
#
|
||
|
|
# /etc/sysctl.conf - Configuration file for setting system variables
|
||
|
|
# See /etc/sysctl.d/ for additional system variables.
|
||
|
|
# See sysctl.conf (5) for information.
|
||
|
|
#
|
||
|
|
|
||
|
|
#kernel.domainname = example.com
|
||
|
|
|
||
|
|
# Uncomment the following to stop low-level messages on console
|
||
|
|
#kernel.printk = 3 4 1 3
|
||
|
|
|
||
|
|
##############################################################3
|
||
|
|
# Functions previously found in netbase
|
||
|
|
#
|
||
|
|
|
||
|
|
# Uncomment the next two lines to enable Spoof protection (reverse-path filter)
|
||
|
|
# Turn on Source Address Verification in all interfaces to
|
||
|
|
# prevent some spoofing attacks
|
||
|
|
#net.ipv4.conf.default.rp_filter=1
|
||
|
|
#net.ipv4.conf.all.rp_filter=1
|
||
|
|
|
||
|
|
# Uncomment the next line to enable TCP/IP SYN cookies
|
||
|
|
# See http://lwn.net/Articles/277146/
|
||
|
|
# Note: This may impact IPv6 TCP sessions too
|
||
|
|
#net.ipv4.tcp_syncookies=1
|
||
|
|
|
||
|
|
# Uncomment the next line to enable packet forwarding for IPv4
|
||
|
|
net.ipv4.ip_forward=1
|
||
|
|
|
||
|
|
# Uncomment the next line to enable packet forwarding for IPv6
|
||
|
|
# Enabling this option disables Stateless Address Autoconfiguration
|
||
|
|
# based on Router Advertisements for this host
|
||
|
|
net.ipv6.conf.all.forwarding=1
|
||
|
|
|
||
|
|
|
||
|
|
###################################################################
|
||
|
|
# Additional settings - these settings can improve the network
|
||
|
|
# security of the host and prevent against some network attacks
|
||
|
|
# including spoofing attacks and man in the middle attacks through
|
||
|
|
# redirection. Some network environments, however, require that these
|
||
|
|
# settings are disabled so review and enable them as needed.
|
||
|
|
#
|
||
|
|
# Do not accept ICMP redirects (prevent MITM attacks)
|
||
|
|
#net.ipv4.conf.all.accept_redirects = 0
|
||
|
|
#net.ipv6.conf.all.accept_redirects = 0
|
||
|
|
# _or_
|
||
|
|
# Accept ICMP redirects only for gateways listed in our default
|
||
|
|
# gateway list (enabled by default)
|
||
|
|
# net.ipv4.conf.all.secure_redirects = 1
|
||
|
|
#
|
||
|
|
# Do not send ICMP redirects (we are not a router)
|
||
|
|
#net.ipv4.conf.all.send_redirects = 0
|
||
|
|
#
|
||
|
|
# Do not accept IP source route packets (we are not a router)
|
||
|
|
#net.ipv4.conf.all.accept_source_route = 0
|
||
|
|
#net.ipv6.conf.all.accept_source_route = 0
|
||
|
|
#
|
||
|
|
# Log Martian Packets
|
||
|
|
#net.ipv4.conf.all.log_martians = 1
|
||
|
|
#
|
||
|
|
kernel.panic = 10
|
||
|
|
#
|
||
|
|
# Sonst landen ICMP-Fehlerpakete auf eth0 - mit source-IP 10.50.x.y...
|
||
|
|
# https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt
|
||
|
|
net.ipv4.icmp_errors_use_inbound_ifaddr = 1
|
||
|
|
|