modprobe ip_tables
modprobe iptable_filter
modprobe ip_conntrack hashsize=262144
modprobe ip_conntrack_ftp
modprobe ipt_state
modprobe iptable_nat
modprobe ip_nat_ftp
modprobe ipt_MASQUERADE
modprobe ipt_LOG
modprobe ipt_REJECT
echo 1048576 > /proc/sys/net/core/somaxconn
echo 524288 > /proc/sys/net/core/wmem_max
echo 65536 > /proc/sys/net/core/wmem_default
echo 524288 > /proc/sys/net/core/rmem_max
echo 65536 > /proc/sys/net/core/rmem_default
echo "8096 16384 32768" >/proc/sys/net/ipv4/tcp_wmem
echo "8096 16384 32768" >/proc/sys/net/ipv4/tcp_rmem
echo 1048576 > /proc/sys/net/ipv4/ip_conntrack_max
echo "1024 64000" > /proc/sys/net/ipv4/ip_local_port_range
echo 131072 > /proc/sys/fs/file-max
echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse
echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle
echo 262144 > /proc/sys/net/ipv4/tcp_max_orphans
echo 262144 > /proc/sys/net/ipv4/tcp_max_syn_backlog
echo 3 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_time_wait
echo 30 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_syn_recv
echo 524288 > /proc/sys/net/ipv4/tcp_max_tw_buckets
echo 5 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_close_wait
echo 18000 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established
echo 1 > /proc/sys/net/ipv4/tcp_syn_retries
echo 3 > /proc/sys/net/ipv4/tcp_synack_retries
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
echo 0 > /proc/sys/net/ipv4/tcp_retrans_collapse
echo 0 >/proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_loose