#?????????????5??????0 ?????????
net.ipv4.tcp_synack_retries = 0
#????????г???
net.ipv4.tcp_max_syn_backlog = 200000
#????????????????????????????????????????
fs.file-max = 819200
#???????????????connect ????
net.core.somaxconn = 65536
#???TCP ??????????壨????
net.core.rmem_max = 1024123000
#???TCP ?????????壨????
net.core.wmem_max = 16777216
#?????豸????????????????????????Щ??????????????????????е????????????
net.core.netdev_max_backlog = 165536
#????????????????????????????Χ
net.ipv4.ip_local_port_range = 10000 65535
# ……???????……
??????????2????????????????????????????ú???????????????google????????????????0????????sysctl -p??????????????飬????TIME_WAIT??????????????????
#?????? ?????? ????????????????syncookies?????? ?????? ???к?????
net.ipv4.tcp_syncookies = 0
#TIME_WAIT???????????ù???
net.ipv4.tcp_tw_reuse = 0
#????????????net.ipv4.tcp_tw_reuse???????
net.ipv4.tcp_timestamps = 0
#TIME_WAIT??????????????
net.ipv4.tcp_tw_recycle = 0
#?????? ?????? ????????????????syncookies?????? ?????? ???к?????
net.ipv4.tcp_syncookies = 0
#TIME_WAIT???????????ù???
net.ipv4.tcp_tw_reuse = 0
#????????????net.ipv4.tcp_tw_reuse???????
net.ipv4.tcp_timestamps = 0
#TIME_WAIT??????????????
net.ipv4.tcp_tw_recycle = 0
???????????????????????????????????
????# vi /etc/security/limits.conf
??????????????б??????????????????409600?????????????????????
????*                –       nofile          409600