How to configure optimized sysctl.conf

This article introduces the knowledge of "how to configure optimized sysctl.conf". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Recently found a good sysctl.conf optimization parameters, in the site response has been good, time timeout connection is said to be almost 0.

System: centos 5.x

Sysctl.conf configuration parameters:

The code is as follows:

Net.ipv4.ip_forward = 0

Net.ipv4.conf.default.rp_filter = 1

Net.ipv4.conf.default.accept_source_route = 0

Kernel.sysrq = 0

Kernel.core_uses_pid = 1

Net.ipv4.tcp_syncookies = 1

Kernel.msgmnb = 65536

Kernel.msgmax = 65536

Kernel.shmmax = 68719476736

Kernel.shmall = 4294967296

Net.ipv4.tcp_max_tw_buckets = 6000

Net.ipv4.tcp_sack = 1

Net.ipv4.tcp_window_scaling = 1

Net.ipv4.tcp_wmem = 8192 4336600 873200

Net.ipv4.tcp_rmem = 32768 4336600 873200

Net.core.wmem_default = 8388608

Net.core.rmem_default = 8388608

Net.core.rmem_max = 16777216

Net.core.wmem_max = 16777216

Net.core.netdev_max_backlog = 262144

Net.core.somaxconn = 262144

Net.ipv4.tcp_max_orphans = 3276800

Net.ipv4.tcp_max_syn_backlog = 262144

Net.ipv4.tcp_timestamps = 1

Net.ipv4.tcp_synack_retries = 1

Net.ipv4.tcp_syn_retries = 1

Net.ipv4.tcp_tw_recycle = 1

Net.ipv4.tcp_tw_reuse = 1

Net.ipv4.tcp_mem = 786432 1048576 1572864

Net.ipv4.tcp_fin_timeout = 30

# net.ipv4.tcp_keepalive_time = 30

Net.ipv4.tcp_keepalive_time = 300

Net.ipv4.ip_local_port_range = 1024 65000

Use sysctl-p to make it work. Students who need it can try it.

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