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#!/bin/bash | |
echo " | |
# Execshild | |
kernel.exec-shield = 1 | |
kernel.randomize_va_space = 1 | |
# IPv4 settings | |
net.ipv4.ip_forward = 0 | |
net.ipv4.conf.all.send_redirects = 0 | |
net.ipv4.conf.default.send_redirects = 0 | |
net.ipv4.conf.all.accept_source_route = 0 | |
net.ipv4.conf.all.accept_redirects = 0 | |
net.ipv4.conf.all.secure_redirects = 0 | |
net.ipv4.conf.all.log_martians = 1 | |
net.ipv4.conf.default.accept_source_route = 0 | |
net.ipv4.conf.default.accept_redirects = 0 | |
net.ipv4.conf.default.secure_redirects = 0 | |
net.ipv4.icmp_echo_ignore_broadcasts = 1 | |
net.ipv4.tcp_syncookies = 1 | |
net.ipv4.conf.all.rp_filter = 1 | |
net.ipv4.conf.default.rp_filter = 1 | |
# Increase system file descriptor limit to | |
fs.file-max = 50000 | |
# Increase system IP port limits | |
net.ipv4.ip_local_port_range = 2000 65000 | |
# Ipv6 | |
net.ipv6.conf.default.router_solicitations = 0 | |
net.ipv6.conf.default.accept_ra_rtr_pref = 0 | |
net.ipv6.conf.default.accept_ra_pinfo = 0 | |
net.ipv6.conf.default.accept_ra_defrtr = 0 | |
net.ipv6.conf.default.autoconf = 0 | |
net.ipv6.conf.default.dad_transmits = 0 | |
net.ipv6.conf.default.max_addresses = 1 | |
" >> /etc/sysctl.conf | |
sysctl -p |
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