Olá a todos,

Com as alterações introduzidas no Kernel 2.6.28 e afins deixaram de existir alguns parametros no Kernel para efectuar fine tunning da ligação, e surgiram outros novos:
net.netfilter.nf_conntrack_generic_timeout=250
net.netfilter.nf_conntrack_udp_timeout = 15
net.netfilter.nf_conntrack_udp_timeout_stream = 50
net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 60
net.netfilter.nf_conntrack_tcp_timeout_close_wait = 30
net.netfilter.nf_conntrack_tcp_timeout_last_ack = 20
net.netfilter.nf_conntrack_tcp_timeout_time_wait = 60
net.netfilter.nf_conntrack_max = 32654
net.nf_conntrack_max = 32654

net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_window_scaling = 0
net.ipv4.tcp_sack = 0
net.ipv4.tcp_timestamps = 0

net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 60
net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 30
net.netfilter.nf_conntrack_tcp_timeout_established = 600
net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 30
net.netfilter.nf_conntrack_tcp_timeout_close_wait = 20
net.netfilter.nf_conntrack_tcp_timeout_last_ack = 15
net.netfilter.nf_conntrack_tcp_timeout_time_wait = 60
net.netfilter.nf_conntrack_tcp_timeout_close = 10
net.netfilter.nf_conntrack_tcp_timeout_max_retrans = 300
net.netfilter.nf_conntrack_tcp_timeout_unacknowledged = 300
net.core.wmem_max=12582912
net.core.rmem_max=12582912
net.ipv4.tcp_rmem= 10240 87380 12582912
net.ipv4.tcp_wmem= 10240 87380 12582912
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_sack = 1
net.ipv4.tcp_no_metrics_save = 1
net.core.netdev_max_backlog = 5000
net.ipv4.tcp_syncookies = 0

Boas afinações e keep rocking;)