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README for netbase
* ifup(8), ifdown(8), and interfaces(5)
The ifup and ifdown commands configure network interfaces as specified
in the /etc/network/interfaces configuration file.
ifup -a is called from /etc/init.d/networking as part of the bootup
process, or for specific interfaces by the hotplug subsystem.
* /etc/network/options
This file is deprecated, and if present should be replaced by values
in /etc/sysctl.conf or equivalent custom scripts.
The relevant sysctl values are:
ip_forward=yes: net.ipv4.ip_forward = 1
spoofprotect=yes: net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
syncookies=yes: net.ipv4.tcp_syncookies = 1