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| net.ipv4.tcp_syncookies=1
net.ipv4.ip_forward=0
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.all.log_martians = 1
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