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cat >> /etc/security/limits.conf << EOF * soft nproc 65535 * hard nproc 65535 * soft nofile 655350 * hard nofile 655350 EOF echo "ulimit -SH 65535" >> /etc/rc.local sed -i 's/net.ipv4.tcp_syncookies.*$/net.ipv4.tcp_syncookies = 1/g' /etc/sysctl.conf cat >> /etc/sysctl.conf << EOF fs.file-max=1966050 net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_time = 300 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.ip_local_port_range = 5000 65000 net.core.somaxconn = 262144 #net.ipv4.icmp_echo_ignore_all = 1 EOF sysctl -p
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