web服务器优化

net.ipv4.ip_forward = 0

02net.ipv4.conf.default.rp_filter = 1

03net.ipv4.conf.default.accept_source_route = 0

04kernel.sysrq = 0

05kernel.core_uses_pid = 1

06net.ipv4.tcp_syncookies = 1

07kernel.msgmnb = 65536

08kernel.msgmax = 65536

09kernel.shmmax = 68719476736

10kernel.shmall = 4294967296

11net.ipv4.tcp_max_tw_buckets = 6000

12net.ipv4.tcp_sack = 1

13net.ipv4.tcp_window_scaling = 1

14net.ipv4.tcp_rmem = 4096        87380   4194304

15net.ipv4.tcp_wmem = 4096        16384   4194304

16net.core.wmem_default = 8388608

17net.core.rmem_default = 8388608

18net.core.rmem_max = 16777216

19net.core.wmem_max = 16777216

20net.core.netdev_max_backlog = 262144

21net.core.somaxconn = 262144

22net.ipv4.tcp_max_orphans = 3276800

23net.ipv4.tcp_max_syn_backlog = 262144

24net.ipv4.tcp_timestamps = 0

25net.ipv4.tcp_synack_retries = 1

26net.ipv4.tcp_syn_retries = 1

27net.ipv4.tcp_tw_recycle = 1

28net.ipv4.tcp_tw_reuse = 1

29net.ipv4.tcp_mem = 94500000 915000000 927000000

30net.ipv4.tcp_fin_timeout = 1

31net.ipv4.tcp_keepalive_time = 30

32net.ipv4.ip_local_port_range = 1024    65000

 

 

netstat -an | awk '/^tcp/ {++s[$NF]} END {for(a in s) print a, s[a]}'