web服务器优化

net.ipv4.ip_forward = 0

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

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

04	kernel.sysrq = 0

05	kernel.core_uses_pid = 1

06	net.ipv4.tcp_syncookies = 1

07	kernel.msgmnb = 65536

08	kernel.msgmax = 65536

09	kernel.shmmax = 68719476736

10	kernel.shmall = 4294967296

11	net.ipv4.tcp_max_tw_buckets = 6000

12	net.ipv4.tcp_sack = 1

13	net.ipv4.tcp_window_scaling = 1

14	net.ipv4.tcp_rmem = 4096        87380   4194304

15	net.ipv4.tcp_wmem = 4096        16384   4194304

16	net.core.wmem_default = 8388608

17	net.core.rmem_default = 8388608

18	net.core.rmem_max = 16777216

19	net.core.wmem_max = 16777216

20	net.core.netdev_max_backlog = 262144

21	net.core.somaxconn = 262144

22	net.ipv4.tcp_max_orphans = 3276800

23	net.ipv4.tcp_max_syn_backlog = 262144

24	net.ipv4.tcp_timestamps = 0

25	net.ipv4.tcp_synack_retries = 1

26	net.ipv4.tcp_syn_retries = 1

27	net.ipv4.tcp_tw_recycle = 1

28	net.ipv4.tcp_tw_reuse = 1

29	net.ipv4.tcp_mem = 94500000 915000000 927000000

30	net.ipv4.tcp_fin_timeout = 1

31	net.ipv4.tcp_keepalive_time = 30

32	net.ipv4.ip_local_port_range = 1024    65000

 

 

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