sysctl-tweaks.sh

#!/bin/bash

# Check Privileges
if [[ $UID -ne 0 ]]; then
  echo "Administrator Privilege Needed. Please run as An Administrator/Root User!"
  exit 1
fi

# Enable Sysctl Tweaks
cat << EOF >> /etc/sysctl.conf
vm.max_map_count=262144

net.core.somaxconn=4096
net.core.rmem_max=16777216
net.core.wmem_max=16777216
net.core.netdev_max_backlog=2500

net.ipv6.conf.default.disable_ipv6=1
net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.lo.disable_ipv6=1
net.ipv6.conf.eth0.disable_ipv6=1

net.ipv4.tcp_mem=116730 155640 233460
net.ipv4.tcp_rmem=4096 87380 16777216
net.ipv4.tcp_wmem=4096 65536 16777216
net.ipv4.tcp_max_orphans=24576
net.ipv4.ip_no_pmtu_disc=0

net.ipv4.conf.all.rp_filter=1
net.ipv4.conf.all.log_martians=1
net.ipv4.conf.all.accept_source_route=0
net.ipv4.conf.all.send_redirects=0
net.ipv4.conf.default.send_redirects=0
net.ipv4.icmp_echo_ignore_broadcasts=1
EOF

# Reload Sysctl
sysctl -p