modprobe ip_tables
modprobe ip_conntrack
modprobe ip_conntrack_ftp
…
/bin/echo „1” > /proc/sys/net/ipv4/icmp_echo_ignore_all
/sbin/sysctl -w net.ipv4.icmp_echo_ignore_broadcasts=1 >/dev/null
for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do
echo 0 > $f;
done
echo 0 >/proc/sys/net/ipv4/conf/all/accept_redirects
echo 0 >/proc/sys/net/ipv4/conf/all/send_redirects
/sbin/sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1 >/dev/null
for f in /proc/sys/net/ipv4/conf/*/rp_filter; do
echo 1 > $f
done
for f in /proc/sys/net/ipv4/conf/*/log_martians; do
echo 1 > $f
done
/bin/echo „0” > /proc/sys/net/ipv4/ip_forward
legutóbbi hsz