kazulog@sv1:~$ sysctl -a 2>/dev/null | wc -l
1189
kazulog@sv1:~$ sysctl net.ipv4.ip_forward vm.swappiness fs.file-max fs.inotify.max_user_instances
net.ipv4.ip_forward = 0
vm.swappiness = 60
fs.file-max = 9223372036854775807
fs.inotify.max_user_instances = 128
kazulog@sv1:~$ cat /proc/sys/vm/swappiness
60
kazulog@sv1:~$ ls -l /etc/sysctl.conf
ls: cannot access '/etc/sysctl.conf': No such file or directory
kazulog@sv1:~$ ls /etc/sysctl.d/
99-cloudimg-ipv6.conf  README.sysctl
kazulog@sv1:~$ grep -vE '^#|^$' /etc/sysctl.d/99-cloudimg-ipv6.conf 2>/dev/null
net.ipv6.conf.all.use_tempaddr = 0
net.ipv6.conf.default.use_tempaddr = 0