sysclt.conf

echo "net.ipv4.conf.all.accept_redirects=0" >> /etc/sysctl.conf
echo "net.ipv4.conf.default.accept_source_route=0" >> /etc/sysctl.conf
echo "net.ipv4.conf.default.rp_filter=1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_fin_timeout=30" >> /etc/sysctl.conf
echo "net.core.netdev_max_backlog=8192" >> /etc/sysctl.conf
echo "net.core.somaxconn=4096" >> /etc/sysctl.conf
echo "net.ipv4.tcp_tw_reuse=1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_tw_recycle=0" >> /etc/sysctl.conf
echo "net.ipv4.ip_local_port_range=32768 60999" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_time=600" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_intvl=15" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_probes=5" >> /etc/sysctl.conf
echo "net.ipv4.ip_forward=0" >> /etc/sysctl.conf
echo "net.ipv6.conf.all.disable_ipv6=1" >> /etc/sysctl.conf
echo "net.ipv6.conf.default.disable_ipv6=0" >> /etc/sysctl.conf
echo "net.bridge.bridge-nf-call-ip6tables=1" >> /etc/sysctl.conf
echo "net.bridge.bridge-nf-call-iptables=1" >> /etc/sysctl.conf
echo "net.ipv4.conf.default.send_redirects=0" >> /etc/sysctl.conf
echo "net.ipv4.conf.all.send_redirects=0" >> /etc/sysctl.conf
echo "vm.swappiness=0" >> /etc/sysctl.conf
echo "kernel.pid_max=655350" >> /etc/sysctl.conf
echo "vm.overcommit_memory=1" >> /etc/sysctl.conf
echo "fs.inotify.max_user_instances=1024" >> /etc/sysctl.conf
echo "fs.aio-max-nr=655360" >> /etc/sysctl.conf
echo "fs.may_detach_mounts=1" >> /etc/sysctl.conf
echo "net.nf_conntrack_max=262144" >> /etc/sysctl.conf
echo "net.core.rmem_max=16777216" >> /etc/sysctl.conf
echo "net.core.rmem_default=8388608" >> /etc/sysctl.conf
echo "net.core.wmem_max=16777216" >> /etc/sysctl.conf
echo "net.core.wmem_default=8388608" >> /etc/sysctl.conf
echo "net.ipv4.tcp_max_tw_buckets=6000" >> /etc/sysctl.conf
echo "net.ipv4.tcp_sack=1" >> /etc.sysctl.conf
echo "net.ipv4.tcp_window_scaling=1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_rmem=4096 87380 4194304" >> /etc/sysctl.conf
echo "net.ipv4.tcp_wmem=4096 16384 4194304" >> /etc/sysctl.conf
echo "net.ipv4.tcp_max_orphans=3276800" >> /etc/sysctl.conf
echo "net.ipv4.tcp_max_syn_backlog=262144" >> /etc/sysctl.conf
echo "net.ipv4.tcp_synack_retries=1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_syn_retries=1" >> /etc/sysctl.conf
echo "net.ipv4.tcp_mem=94500000 915000000 927000000" >> /etc/sysctl.conf
echo "net.ipv4.tcp_keepalive_time=30" >> /etc/sysctl.conf
echo "net.ipv4.ip_conntrack_max=262144" >> /etc/sysctl.conf
echo "kernel.sysrq=0" >> /etc/sysctl.conf
echo "kernel.core_uses_pid=1" >> /etc/sysctl.conf
echo "kernel.msgmnb=65536" >> /etc/sysctl.conf
echo "kernel.msgmax=65536" >> /etc/sysctl.conf
echo "kernel.shmmax=68719476736" >> /etc/sysctl.conf
echo "kernel.shmall=4294967296" >> /etc/sysctl.conf