FM / user

/proc/sys/user

Name	Mode	Actions
max_cgroup_namespaces	0644	edit dl rm
max_fanotify_groups	0644	edit dl rm
max_fanotify_marks	0644	edit dl rm
max_inotify_instances	0644	edit dl rm
max_inotify_watches	0644	edit dl rm
max_ipc_namespaces	0644	edit dl rm
max_mnt_namespaces	0644	edit dl rm
max_net_namespaces	0644	edit dl rm
max_pid_namespaces	0644	edit dl rm
max_time_namespaces	0644	edit dl rm
max_user_namespaces	0644	edit dl rm
max_uts_namespaces	0644	edit dl rm

Edit: /proc/sys/user/max_cgroup_namespaces (0B)

cmd: