# Disable response to broadcasts. # You don't want yourself becoming a Smurf amplifier. net.ipv4.icmp_echo_ignore_broadcasts = 1 # enable route verification on all interfaces net.ipv4.conf.all.rp_filter = 1 # enable ipV6 forwarding #net.ipv6.conf.all.forwarding = 1 # increase the number of possible inotify(7) watches fs.inotify.max_user_watches = 65536 # avoid deleting secondary IPs on deleting the primary IP net.ipv4.conf.default.promote_secondaries = 1 net.ipv4.conf.all.promote_secondaries = 1 net.ipv4.conf.default.accept_source_route=0 net.ipv4.tcp_max_syn_backlog=1280 net.ipv4.conf.all.accept_redirects=0 net.ipv4.conf.default.accept_redirects=0 net.ipv4.conf.all.send_redirects=0 net.ipv4.conf.default.send_redirects=0 net.ipv4.conf.all.secure_redirects=0 net.ipv4.conf.default.secure_redirects=0 net.ipv4.conf.all.log_martians=1 net.ipv4.conf.default.log_martians=1 net.ipv4.conf.default.rp_filter=1 net.ipv6.conf.all.accept_redirects=0 net.ipv6.conf.default.accept_redirects=0 net.ipv6.conf.all.router_solicitations=0 net.ipv6.conf.default.router_solicitations=0 kernel.printk = 3 4 1 7