Kernel parameter optimization

Kernel parameter optimization
# VI Sysctl.conf
Add the following configuration
net.ipv4.netfilter.ip_conntrack_tcp_timeout_established = 1800
Net.ipv4.ip_conntrack_max = 16777216 # If default parameters are used, network drops are prone to occur

Net.ipv4.netfilter.ip_conntrack_max = 16777216 # If default parameters are used, network drops are prone to occur

Net.ipv4.tcp_max_syn_backlog = 65536

Net.core.netdev_max_backlog = 32768

Net.core.somaxconn = 32768
Net.core.wmem_default = 8388608
Net.core.rmem_default = 8388608
Net.core.rmem_max = 16777216
Net.core.wmem_max = 16777216
Net.ipv4.tcp_timestamps = 0
Net.ipv4.tcp_synack_retries = 2
Net.ipv4.tcp_syn_retries =
Net.ipv4.tcp_tw_recycle = 1
Net.ipv4.tcp_tw_reuse = 1
Net.ipv4.tcp_mem = 94500000 915000000 927000000
Net.ipv4.tcp_max_orphans = 3276800
Net.ipv4.ip_local_port_range = 1024 65535

Configuration takes effect:

Sysctl-p

Modify the Iptables startup script to add the Star () function

Vim/etc/init.d/iptables

/sbin/sysctl-p

Kernel parameter optimization