kazulog@sv1:~$ printf 'vm.swappiness = 10\nnet.core.somaxconn = 1024\n' | sudo tee /etc/sysctl.d/99-kazulog.conf
vm.swappiness = 10
net.core.somaxconn = 1024
kazulog@sv1:~$ sudo sysctl --system 2>&1 | tail -4
net.ipv6.conf.all.use_tempaddr = 0
net.ipv6.conf.default.use_tempaddr = 0
vm.swappiness = 10
net.core.somaxconn = 1024
kazulog@sv1:~$ sysctl vm.swappiness net.core.somaxconn
vm.swappiness = 10
net.core.somaxconn = 1024
kazulog@sv1:~$ sudo reboot