data_sysctlvalues

Table of Contents

Prototype: data_sysctlvalues()

Return type: data

Description: Returns all sysctl values using /proc/sys.

Example:

Policy:

bundle agent inventory_sysctl
{
  vars:
      # Get the complete set of sysctl variables and values as a data structure
      "_sysctl_d"
        data => data_sysctlvalues(),
        unless => isvariable( _sysctl_d );

      # Get the sysctl variable names
      "_sysctl_i"
        slist => getindices( "_sysctl_d" );

      # Define a variable tagged for inventory for each sysctl variable
      "sysctl[$(_sysctl_i)]"
        string => "$(_sysctl_d[$(_sysctl_i)])",
        meta => { "inventory", "attribute_name=Kernel Tunable $(_sysctl_i)" };

  reports:
      # Show what data_sysctlvalues() returned.
      "data_sysctlvalues() returned:$(with)"
        with => storejson( @(_sysctl_d) );

}
bundle agent __main__
{
      methods: "inventory_sysctl";

}

This policy can be found in /var/cfengine/share/doc/examples/data_sysctlvalues.cf and downloaded directly from github.

Output:

R: data_sysctlvalues() returned:{
  "abi.vsyscall32": "1",
  "crypto.fips_enabled": "0",
  "debug.exception-trace": "1",
  "debug.kprobes-optimization": "1",
  "debug.panic_on_rcu_stall": "0",
  "dev.hpet.max-user-freq": "64",
  "dev.mac_hid.mouse_button2_keycode": "97",
  "dev.mac_hid.mouse_button3_keycode": "100",
  "dev.mac_hid.mouse_button_emulation": "0",
  "dev.parport.default.spintime": "500",
  "dev.parport.default.timeslice": "200",
  "dev.raid.speed_limit_max": "200000",
  "dev.raid.speed_limit_min": "1000",
  "dev.scsi.logging_level": "0",
  "fs.aio-max-nr": "65536",
  "fs.aio-nr": "0",
  "fs.binfmt_misc.status": "enabled",
  "fs.dentry-state": "43676\t27378\t45\t0\t479\t0",
  "fs.dir-notify-enable": "1",
  "fs.epoll.max_user_watches": "99020",
  "fs.file-max": "47380",
  "fs.file-nr": "1472\t0\t47380",
  "fs.inode-nr": "47116\t21990",
  "fs.inode-state": "47116\t21990\t0\t0\t0\t0\t0",
  "fs.inotify.max_queued_events": "16384",
  "fs.inotify.max_user_instances": "128",
  "fs.inotify.max_user_watches": "8192",
  "fs.lease-break-time": "45",
  "fs.leases-enable": "1",
  "fs.may_detach_mounts": "0",
  "fs.mount-max": "100000",
  "fs.mqueue.msg_default": "10",
  "fs.mqueue.msg_max": "10",
  "fs.mqueue.msgsize_default": "8192",
  "fs.mqueue.msgsize_max": "8192",
  "fs.mqueue.queues_max": "256",
  "fs.negative-dentry-limit": "0",
  "fs.nr_open": "1048576",
  "fs.overflowgid": "65534",
  "fs.overflowuid": "65534",
  "fs.pipe-max-size": "1048576",
  "fs.pipe-user-pages-hard": "0",
  "fs.pipe-user-pages-soft": "16384",
  "fs.protected_hardlinks": "1",
  "fs.protected_symlinks": "1",
  "fs.quota.allocated_dquots": "0",
  "fs.quota.cache_hits": "0",
  "fs.quota.drops": "0",
  "fs.quota.free_dquots": "0",
  "fs.quota.lookups": "0",
  "fs.quota.reads": "0",
  "fs.quota.syncs": "0",
  "fs.quota.warnings": "1",
  "fs.quota.writes": "0",
  "fs.suid_dumpable": "0",
  "fs.xfs.age_buffer_centisecs": "1500",
  "fs.xfs.error_level": "3",
  "fs.xfs.filestream_centisecs": "3000",
  "fs.xfs.inherit_noatime": "1",
  "fs.xfs.inherit_nodefrag": "1",
  "fs.xfs.inherit_nodump": "1",
  "fs.xfs.inherit_nosymlinks": "0",
  "fs.xfs.inherit_sync": "1",
  "fs.xfs.irix_sgid_inherit": "0",
  "fs.xfs.irix_symlink_mode": "0",
  "fs.xfs.panic_mask": "0",
  "fs.xfs.rotorstep": "1",
  "fs.xfs.speculative_prealloc_lifetime": "300",
  "fs.xfs.stats_clear": "0",
  "fs.xfs.xfsbufd_centisecs": "100",
  "fs.xfs.xfssyncd_centisecs": "3000",
  "kernel.acct": "4\t2\t30",
  "kernel.acpi_video_flags": "0",
  "kernel.auto_msgmni": "0",
  "kernel.bootloader_type": "114",
  "kernel.bootloader_version": "2",
  "kernel.cad_pid": "1",
  "kernel.cap_last_cap": "36",
  "kernel.compat-log": "1",
  "kernel.core_pattern": "core",
  "kernel.core_pipe_limit": "0",
  "kernel.core_uses_pid": "1",
  "kernel.ctrl-alt-del": "0",
  "kernel.dmesg_restrict": "0",
  "kernel.domainname": "(none)",
  "kernel.ftrace_dump_on_oops": "0",
  "kernel.ftrace_enabled": "1",
  "kernel.hardlockup_all_cpu_backtrace": "0",
  "kernel.hardlockup_panic": "1",
  "kernel.hostname": "hub.example.com",
  "kernel.hotplug": "",
  "kernel.hung_task_check_count": "4194304",
  "kernel.hung_task_panic": "0",
  "kernel.hung_task_timeout_secs": "120",
  "kernel.hung_task_warnings": "10",
  "kernel.io_delay_type": "0",
  "kernel.kexec_load_disabled": "0",
  "kernel.keys.gc_delay": "300",
  "kernel.keys.maxbytes": "20000",
  "kernel.keys.maxkeys": "200",
  "kernel.keys.persistent_keyring_expiry": "259200",
  "kernel.keys.root_maxbytes": "25000000",
  "kernel.keys.root_maxkeys": "1000000",
  "kernel.kptr_restrict": "0",
  "kernel.max_lock_depth": "1024",
  "kernel.modprobe": "/sbin/modprobe",
  "kernel.modules_disabled": "0",
  "kernel.msg_next_id": "-1",
  "kernel.msgmax": "8192",
  "kernel.msgmnb": "16384",
  "kernel.msgmni": "32000",
  "kernel.ngroups_max": "65536",
  "kernel.nmi_watchdog": "1",
  "kernel.ns_last_pid": "3240",
  "kernel.numa_balancing": "0",
  "kernel.numa_balancing_scan_delay_ms": "1000",
  "kernel.numa_balancing_scan_period_max_ms": "60000",
  "kernel.numa_balancing_scan_period_min_ms": "1000",
  "kernel.numa_balancing_scan_size_mb": "256",
  "kernel.numa_balancing_settle_count": "4",
  "kernel.osrelease": "3.10.0-1127.el7.x86_64",
  "kernel.ostype": "Linux",
  "kernel.overflowgid": "65534",
  "kernel.overflowuid": "65534",
  "kernel.panic": "0",
  "kernel.panic_on_io_nmi": "0",
  "kernel.panic_on_oops": "1",
  "kernel.panic_on_stackoverflow": "0",
  "kernel.panic_on_unrecovered_nmi": "0",
  "kernel.panic_on_warn": "0",
  "kernel.perf_cpu_time_max_percent": "25",
  "kernel.perf_event_max_sample_rate": "100000",
  "kernel.perf_event_mlock_kb": "516",
  "kernel.perf_event_paranoid": "2",
  "kernel.pid_max": "32768",
  "kernel.poweroff_cmd": "/sbin/poweroff",
  "kernel.print-fatal-signals": "0",
  "kernel.printk": "7\t4\t1\t7",
  "kernel.printk_delay": "0",
  "kernel.printk_ratelimit": "5",
  "kernel.printk_ratelimit_burst": "10",
  "kernel.pty.max": "4096",
  "kernel.pty.nr": "1",
  "kernel.pty.reserve": "1024",
  "kernel.random.boot_id": "422886c9-8219-4749-9610-981bdeb5e509",
  "kernel.random.entropy_avail": "3071",
  "kernel.random.poolsize": "4096",
  "kernel.random.read_wakeup_threshold": "64",
  "kernel.random.urandom_min_reseed_secs": "60",
  "kernel.random.uuid": "f9544436-b0a1-43b7-a36b-3b8da50e066a",
  "kernel.random.write_wakeup_threshold": "896",
  "kernel.randomize_va_space": "2",
  "kernel.real-root-dev": "0",
  "kernel.sched_autogroup_enabled": "0",
  "kernel.sched_cfs_bandwidth_slice_us": "5000",
  "kernel.sched_child_runs_first": "0",
  "kernel.sched_domain.cpu0.domain0.busy_factor": "32",
  "kernel.sched_domain.cpu0.domain0.busy_idx": "2",
  "kernel.sched_domain.cpu0.domain0.cache_nice_tries": "1",
  "kernel.sched_domain.cpu0.domain0.flags": "559",
  "kernel.sched_domain.cpu0.domain0.forkexec_idx": "0",
  "kernel.sched_domain.cpu0.domain0.idle_idx": "0",
  "kernel.sched_domain.cpu0.domain0.imbalance_pct": "117",
  "kernel.sched_domain.cpu0.domain0.max_interval": "4",
  "kernel.sched_domain.cpu0.domain0.max_newidle_lb_cost": "37143",
  "kernel.sched_domain.cpu0.domain0.min_interval": "2",
  "kernel.sched_domain.cpu0.domain0.name": "MC",
  "kernel.sched_domain.cpu0.domain0.newidle_idx": "0",
  "kernel.sched_domain.cpu0.domain0.wake_idx": "0",
  "kernel.sched_domain.cpu1.domain0.busy_factor": "32",
  "kernel.sched_domain.cpu1.domain0.busy_idx": "2",
  "kernel.sched_domain.cpu1.domain0.cache_nice_tries": "1",
  "kernel.sched_domain.cpu1.domain0.flags": "559",
  "kernel.sched_domain.cpu1.domain0.forkexec_idx": "0",
  "kernel.sched_domain.cpu1.domain0.idle_idx": "0",
  "kernel.sched_domain.cpu1.domain0.imbalance_pct": "117",
  "kernel.sched_domain.cpu1.domain0.max_interval": "4",
  "kernel.sched_domain.cpu1.domain0.max_newidle_lb_cost": "16770",
  "kernel.sched_domain.cpu1.domain0.min_interval": "2",
  "kernel.sched_domain.cpu1.domain0.name": "MC",
  "kernel.sched_domain.cpu1.domain0.newidle_idx": "0",
  "kernel.sched_domain.cpu1.domain0.wake_idx": "0",
  "kernel.sched_latency_ns": "12000000",
  "kernel.sched_migration_cost_ns": "500000",
  "kernel.sched_min_granularity_ns": "10000000",
  "kernel.sched_nr_migrate": "32",
  "kernel.sched_rr_timeslice_ms": "100",
  "kernel.sched_rt_period_us": "1000000",
  "kernel.sched_rt_runtime_us": "950000",
  "kernel.sched_schedstats": "0",
  "kernel.sched_shares_window_ns": "10000000",
  "kernel.sched_time_avg_ms": "1000",
  "kernel.sched_tunable_scaling": "1",
  "kernel.sched_wakeup_granularity_ns": "15000000",
  "kernel.seccomp.actions_avail": "kill trap errno trace allow",
  "kernel.seccomp.actions_logged": "kill trap errno trace",
  "kernel.sem": "250\t32000\t32\t128",
  "kernel.sem_next_id": "-1",
  "kernel.shm_next_id": "-1",
  "kernel.shm_rmid_forced": "0",
  "kernel.shmall": "18446744073692774399",
  "kernel.shmmax": "18446744073692774399",
  "kernel.shmmni": "4096",
  "kernel.softlockup_all_cpu_backtrace": "0",
  "kernel.softlockup_panic": "0",
  "kernel.stack_tracer_enabled": "0",
  "kernel.sysctl_writes_strict": "1",
  "kernel.sysrq": "16",
  "kernel.tainted": "0",
  "kernel.threads-max": "3777",
  "kernel.timer_migration": "1",
  "kernel.traceoff_on_warning": "0",
  "kernel.unknown_nmi_panic": "0",
  "kernel.usermodehelper.bset": "4294967295\t31",
  "kernel.usermodehelper.inheritable": "4294967295\t31",
  "kernel.version": "#1 SMP Tue Mar 31 23:36:51 UTC 2020",
  "kernel.watchdog": "1",
  "kernel.watchdog_cpumask": "0-1",
  "kernel.watchdog_thresh": "10",
  "kernel.yama.ptrace_scope": "0",
  "net.core.bpf_jit_enable": "1",
  "net.core.bpf_jit_harden": "1",
  "net.core.bpf_jit_kallsyms": "0",
  "net.core.busy_poll": "0",
  "net.core.busy_read": "0",
  "net.core.default_qdisc": "pfifo_fast",
  "net.core.dev_weight": "64",
  "net.core.dev_weight_rx_bias": "1",
  "net.core.dev_weight_tx_bias": "1",
  "net.core.message_burst": "10",
  "net.core.message_cost": "5",
  "net.core.netdev_budget": "300",
  "net.core.netdev_max_backlog": "1000",
  "net.core.netdev_rss_key": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
  "net.core.netdev_tstamp_prequeue": "1",
  "net.core.optmem_max": "20480",
  "net.core.rmem_default": "212992",
  "net.core.rmem_max": "212992",
  "net.core.rps_sock_flow_entries": "0",
  "net.core.somaxconn": "128",
  "net.core.warnings": "1",
  "net.core.wmem_default": "212992",
  "net.core.wmem_max": "212992",
  "net.core.xfrm_acq_expires": "30",
  "net.core.xfrm_aevent_etime": "10",
  "net.core.xfrm_aevent_rseqth": "2",
  "net.core.xfrm_larval_drop": "1",
  "net.ipv4.cipso_cache_bucket_size": "10",
  "net.ipv4.cipso_cache_enable": "1",
  "net.ipv4.cipso_rbm_optfmt": "0",
  "net.ipv4.cipso_rbm_strictvalid": "1",
  "net.ipv4.conf.all.accept_local": "0",
  "net.ipv4.conf.all.accept_redirects": "1",
  "net.ipv4.conf.all.accept_source_route": "0",
  "net.ipv4.conf.all.arp_accept": "0",
  "net.ipv4.conf.all.arp_announce": "0",
  "net.ipv4.conf.all.arp_filter": "0",
  "net.ipv4.conf.all.arp_ignore": "0",
  "net.ipv4.conf.all.arp_notify": "0",
  "net.ipv4.conf.all.bootp_relay": "0",
  "net.ipv4.conf.all.disable_policy": "0",
  "net.ipv4.conf.all.disable_xfrm": "0",
  "net.ipv4.conf.all.force_igmp_version": "0",
  "net.ipv4.conf.all.forwarding": "0",
  "net.ipv4.conf.all.igmpv2_unsolicited_report_interval": "10000",
  "net.ipv4.conf.all.igmpv3_unsolicited_report_interval": "1000",
  "net.ipv4.conf.all.log_martians": "0",
  "net.ipv4.conf.all.mc_forwarding": "0",
  "net.ipv4.conf.all.medium_id": "0",
  "net.ipv4.conf.all.promote_secondaries": "1",
  "net.ipv4.conf.all.proxy_arp": "0",
  "net.ipv4.conf.all.proxy_arp_pvlan": "0",
  "net.ipv4.conf.all.route_localnet": "0",
  "net.ipv4.conf.all.rp_filter": "1",
  "net.ipv4.conf.all.secure_redirects": "1",
  "net.ipv4.conf.all.send_redirects": "1",
  "net.ipv4.conf.all.shared_media": "1",
  "net.ipv4.conf.all.src_valid_mark": "0",
  "net.ipv4.conf.all.tag": "0",
  "net.ipv4.conf.default.accept_local": "0",
  "net.ipv4.conf.default.accept_redirects": "1",
  "net.ipv4.conf.default.accept_source_route": "0",
  "net.ipv4.conf.default.arp_accept": "0",
  "net.ipv4.conf.default.arp_announce": "0",
  "net.ipv4.conf.default.arp_filter": "0",
  "net.ipv4.conf.default.arp_ignore": "0",
  "net.ipv4.conf.default.arp_notify": "0",
  "net.ipv4.conf.default.bootp_relay": "0",
  "net.ipv4.conf.default.disable_policy": "0",
  "net.ipv4.conf.default.disable_xfrm": "0",
  "net.ipv4.conf.default.force_igmp_version": "0",
  "net.ipv4.conf.default.forwarding": "0",
  "net.ipv4.conf.default.igmpv2_unsolicited_report_interval": "10000",
  "net.ipv4.conf.default.igmpv3_unsolicited_report_interval": "1000",
  "net.ipv4.conf.default.log_martians": "0",
  "net.ipv4.conf.default.mc_forwarding": "0",
  "net.ipv4.conf.default.medium_id": "0",
  "net.ipv4.conf.default.promote_secondaries": "1",
  "net.ipv4.conf.default.proxy_arp": "0",
  "net.ipv4.conf.default.proxy_arp_pvlan": "0",
  "net.ipv4.conf.default.route_localnet": "0",
  "net.ipv4.conf.default.rp_filter": "1",
  "net.ipv4.conf.default.secure_redirects": "1",
  "net.ipv4.conf.default.send_redirects": "1",
  "net.ipv4.conf.default.shared_media": "1",
  "net.ipv4.conf.default.src_valid_mark": "0",
  "net.ipv4.conf.default.tag": "0",
  "net.ipv4.conf.eth0.accept_local": "0",
  "net.ipv4.conf.eth0.accept_redirects": "1",
  "net.ipv4.conf.eth0.accept_source_route": "0",
  "net.ipv4.conf.eth0.arp_accept": "0",
  "net.ipv4.conf.eth0.arp_announce": "0",
  "net.ipv4.conf.eth0.arp_filter": "0",
  "net.ipv4.conf.eth0.arp_ignore": "0",
  "net.ipv4.conf.eth0.arp_notify": "0",
  "net.ipv4.conf.eth0.bootp_relay": "0",
  "net.ipv4.conf.eth0.disable_policy": "0",
  "net.ipv4.conf.eth0.disable_xfrm": "0",
  "net.ipv4.conf.eth0.force_igmp_version": "0",
  "net.ipv4.conf.eth0.forwarding": "0",
  "net.ipv4.conf.eth0.igmpv2_unsolicited_report_interval": "10000",
  "net.ipv4.conf.eth0.igmpv3_unsolicited_report_interval": "1000",
  "net.ipv4.conf.eth0.log_martians": "0",
  "net.ipv4.conf.eth0.mc_forwarding": "0",
  "net.ipv4.conf.eth0.medium_id": "0",
  "net.ipv4.conf.eth0.promote_secondaries": "1",
  "net.ipv4.conf.eth0.proxy_arp": "0",
  "net.ipv4.conf.eth0.proxy_arp_pvlan": "0",
  "net.ipv4.conf.eth0.route_localnet": "0",
  "net.ipv4.conf.eth0.rp_filter": "1",
  "net.ipv4.conf.eth0.secure_redirects": "1",
  "net.ipv4.conf.eth0.send_redirects": "1",
  "net.ipv4.conf.eth0.shared_media": "1",
  "net.ipv4.conf.eth0.src_valid_mark": "0",
  "net.ipv4.conf.eth0.tag": "0",
  "net.ipv4.conf.eth1.accept_local": "0",
  "net.ipv4.conf.eth1.accept_redirects": "1",
  "net.ipv4.conf.eth1.accept_source_route": "0",
  "net.ipv4.conf.eth1.arp_accept": "0",
  "net.ipv4.conf.eth1.arp_announce": "0",
  "net.ipv4.conf.eth1.arp_filter": "0",
  "net.ipv4.conf.eth1.arp_ignore": "0",
  "net.ipv4.conf.eth1.arp_notify": "0",
  "net.ipv4.conf.eth1.bootp_relay": "0",
  "net.ipv4.conf.eth1.disable_policy": "0",
  "net.ipv4.conf.eth1.disable_xfrm": "0",
  "net.ipv4.conf.eth1.force_igmp_version": "0",
  "net.ipv4.conf.eth1.forwarding": "0",
  "net.ipv4.conf.eth1.igmpv2_unsolicited_report_interval": "10000",
  "net.ipv4.conf.eth1.igmpv3_unsolicited_report_interval": "1000",
  "net.ipv4.conf.eth1.log_martians": "0",
  "net.ipv4.conf.eth1.mc_forwarding": "0",
  "net.ipv4.conf.eth1.medium_id": "0",
  "net.ipv4.conf.eth1.promote_secondaries": "1",
  "net.ipv4.conf.eth1.proxy_arp": "0",
  "net.ipv4.conf.eth1.proxy_arp_pvlan": "0",
  "net.ipv4.conf.eth1.route_localnet": "0",
  "net.ipv4.conf.eth1.rp_filter": "1",
  "net.ipv4.conf.eth1.secure_redirects": "1",
  "net.ipv4.conf.eth1.send_redirects": "1",
  "net.ipv4.conf.eth1.shared_media": "1",
  "net.ipv4.conf.eth1.src_valid_mark": "0",
  "net.ipv4.conf.eth1.tag": "0",
  "net.ipv4.conf.lo.accept_local": "0",
  "net.ipv4.conf.lo.accept_redirects": "1",
  "net.ipv4.conf.lo.accept_source_route": "1",
  "net.ipv4.conf.lo.arp_accept": "0",
  "net.ipv4.conf.lo.arp_announce": "0",
  "net.ipv4.conf.lo.arp_filter": "0",
  "net.ipv4.conf.lo.arp_ignore": "0",
  "net.ipv4.conf.lo.arp_notify": "0",
  "net.ipv4.conf.lo.bootp_relay": "0",
  "net.ipv4.conf.lo.disable_policy": "1",
  "net.ipv4.conf.lo.disable_xfrm": "1",
  "net.ipv4.conf.lo.force_igmp_version": "0",
  "net.ipv4.conf.lo.forwarding": "0",
  "net.ipv4.conf.lo.igmpv2_unsolicited_report_interval": "10000",
  "net.ipv4.conf.lo.igmpv3_unsolicited_report_interval": "1000",
  "net.ipv4.conf.lo.log_martians": "0",
  "net.ipv4.conf.lo.mc_forwarding": "0",
  "net.ipv4.conf.lo.medium_id": "0",
  "net.ipv4.conf.lo.promote_secondaries": "0",
  "net.ipv4.conf.lo.proxy_arp": "0",
  "net.ipv4.conf.lo.proxy_arp_pvlan": "0",
  "net.ipv4.conf.lo.route_localnet": "0",
  "net.ipv4.conf.lo.rp_filter": "0",
  "net.ipv4.conf.lo.secure_redirects": "1",
  "net.ipv4.conf.lo.send_redirects": "1",
  "net.ipv4.conf.lo.shared_media": "1",
  "net.ipv4.conf.lo.src_valid_mark": "0",
  "net.ipv4.conf.lo.tag": "0",
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  "net.ipv6.idgen_delay": "1",
  "net.ipv6.idgen_retries": "3",
  "net.ipv6.ip6frag_high_thresh": "4194304",
  "net.ipv6.ip6frag_low_thresh": "3145728",
  "net.ipv6.ip6frag_secret_interval": "600",
  "net.ipv6.ip6frag_time": "60",
  "net.ipv6.ip_nonlocal_bind": "0",
  "net.ipv6.mld_max_msf": "64",
  "net.ipv6.mld_qrv": "2",
  "net.ipv6.neigh.default.anycast_delay": "100",
  "net.ipv6.neigh.default.app_solicit": "0",
  "net.ipv6.neigh.default.base_reachable_time": "30",
  "net.ipv6.neigh.default.base_reachable_time_ms": "30000",
  "net.ipv6.neigh.default.delay_first_probe_time": "5",
  "net.ipv6.neigh.default.gc_interval": "30",
  "net.ipv6.neigh.default.gc_stale_time": "60",
  "net.ipv6.neigh.default.gc_thresh1": "128",
  "net.ipv6.neigh.default.gc_thresh2": "512",
  "net.ipv6.neigh.default.gc_thresh3": "1024",
  "net.ipv6.neigh.default.locktime": "0",
  "net.ipv6.neigh.default.mcast_solicit": "3",
  "net.ipv6.neigh.default.proxy_delay": "80",
  "net.ipv6.neigh.default.proxy_qlen": "64",
  "net.ipv6.neigh.default.retrans_time": "1000",
  "net.ipv6.neigh.default.retrans_time_ms": "1000",
  "net.ipv6.neigh.default.ucast_solicit": "3",
  "net.ipv6.neigh.default.unres_qlen": "31",
  "net.ipv6.neigh.default.unres_qlen_bytes": "65536",
  "net.ipv6.neigh.eth0.anycast_delay": "100",
  "net.ipv6.neigh.eth0.app_solicit": "0",
  "net.ipv6.neigh.eth0.base_reachable_time": "30",
  "net.ipv6.neigh.eth0.base_reachable_time_ms": "30000",
  "net.ipv6.neigh.eth0.delay_first_probe_time": "5",
  "net.ipv6.neigh.eth0.gc_stale_time": "60",
  "net.ipv6.neigh.eth0.locktime": "0",
  "net.ipv6.neigh.eth0.mcast_solicit": "3",
  "net.ipv6.neigh.eth0.proxy_delay": "80",
  "net.ipv6.neigh.eth0.proxy_qlen": "64",
  "net.ipv6.neigh.eth0.retrans_time": "1000",
  "net.ipv6.neigh.eth0.retrans_time_ms": "1000",
  "net.ipv6.neigh.eth0.ucast_solicit": "3",
  "net.ipv6.neigh.eth0.unres_qlen": "31",
  "net.ipv6.neigh.eth0.unres_qlen_bytes": "65536",
  "net.ipv6.neigh.eth1.anycast_delay": "100",
  "net.ipv6.neigh.eth1.app_solicit": "0",
  "net.ipv6.neigh.eth1.base_reachable_time": "30",
  "net.ipv6.neigh.eth1.base_reachable_time_ms": "30000",
  "net.ipv6.neigh.eth1.delay_first_probe_time": "5",
  "net.ipv6.neigh.eth1.gc_stale_time": "60",
  "net.ipv6.neigh.eth1.locktime": "0",
  "net.ipv6.neigh.eth1.mcast_solicit": "3",
  "net.ipv6.neigh.eth1.proxy_delay": "80",
  "net.ipv6.neigh.eth1.proxy_qlen": "64",
  "net.ipv6.neigh.eth1.retrans_time": "1000",
  "net.ipv6.neigh.eth1.retrans_time_ms": "1000",
  "net.ipv6.neigh.eth1.ucast_solicit": "3",
  "net.ipv6.neigh.eth1.unres_qlen": "31",
  "net.ipv6.neigh.eth1.unres_qlen_bytes": "65536",
  "net.ipv6.neigh.lo.anycast_delay": "100",
  "net.ipv6.neigh.lo.app_solicit": "0",
  "net.ipv6.neigh.lo.base_reachable_time": "30",
  "net.ipv6.neigh.lo.base_reachable_time_ms": "30000",
  "net.ipv6.neigh.lo.delay_first_probe_time": "5",
  "net.ipv6.neigh.lo.gc_stale_time": "60",
  "net.ipv6.neigh.lo.locktime": "0",
  "net.ipv6.neigh.lo.mcast_solicit": "3",
  "net.ipv6.neigh.lo.proxy_delay": "80",
  "net.ipv6.neigh.lo.proxy_qlen": "64",
  "net.ipv6.neigh.lo.retrans_time": "1000",
  "net.ipv6.neigh.lo.retrans_time_ms": "1000",
  "net.ipv6.neigh.lo.ucast_solicit": "3",
  "net.ipv6.neigh.lo.unres_qlen": "31",
  "net.ipv6.neigh.lo.unres_qlen_bytes": "65536",
  "net.ipv6.route.gc_elasticity": "9",
  "net.ipv6.route.gc_interval": "30",
  "net.ipv6.route.gc_min_interval": "0",
  "net.ipv6.route.gc_min_interval_ms": "500",
  "net.ipv6.route.gc_thresh": "1024",
  "net.ipv6.route.gc_timeout": "60",
  "net.ipv6.route.max_size": "16384",
  "net.ipv6.route.min_adv_mss": "1220",
  "net.ipv6.route.mtu_expires": "600",
  "net.ipv6.xfrm6_gc_thresh": "32768",
  "net.netfilter.nf_log.0": "NONE",
  "net.netfilter.nf_log.1": "NONE",
  "net.netfilter.nf_log.10": "NONE",
  "net.netfilter.nf_log.11": "NONE",
  "net.netfilter.nf_log.12": "NONE",
  "net.netfilter.nf_log.2": "NONE",
  "net.netfilter.nf_log.3": "NONE",
  "net.netfilter.nf_log.4": "NONE",
  "net.netfilter.nf_log.5": "NONE",
  "net.netfilter.nf_log.6": "NONE",
  "net.netfilter.nf_log.7": "NONE",
  "net.netfilter.nf_log.8": "NONE",
  "net.netfilter.nf_log.9": "NONE",
  "net.netfilter.nf_log_all_netns": "0",
  "net.unix.max_dgram_qlen": "512",
  "sunrpc.max_resvport": "1023",
  "sunrpc.min_resvport": "665",
  "sunrpc.nfs_debug": "0x0000",
  "sunrpc.nfsd_debug": "0x0000",
  "sunrpc.nlm_debug": "0x0000",
  "sunrpc.rpc_debug": "0x0000",
  "sunrpc.tcp_fin_timeout": "15",
  "sunrpc.tcp_max_slot_table_entries": "65536",
  "sunrpc.tcp_slot_table_entries": "2",
  "sunrpc.transports": "tcp 1048576\nudp 32768",
  "sunrpc.udp_slot_table_entries": "16",
  "user.max_ipc_namespaces": "1888",
  "user.max_mnt_namespaces": "1888",
  "user.max_net_namespaces": "1888",
  "user.max_pid_namespaces": "1888",
  "user.max_user_namespaces": "0",
  "user.max_uts_namespaces": "1888",
  "vm.admin_reserve_kbytes": "8192",
  "vm.block_dump": "0",
  "vm.dirty_background_bytes": "0",
  "vm.dirty_background_ratio": "10",
  "vm.dirty_bytes": "0",
  "vm.dirty_expire_centisecs": "3000",
  "vm.dirty_ratio": "30",
  "vm.dirty_writeback_centisecs": "500",
  "vm.drop_caches": "0",
  "vm.extfrag_threshold": "500",
  "vm.hugepages_treat_as_movable": "0",
  "vm.hugetlb_shm_group": "0",
  "vm.laptop_mode": "0",
  "vm.legacy_va_layout": "0",
  "vm.lowmem_reserve_ratio": "256\t256\t32",
  "vm.max_map_count": "65530",
  "vm.memory_failure_early_kill": "0",
  "vm.memory_failure_recovery": "1",
  "vm.min_free_kbytes": "2816",
  "vm.min_slab_ratio": "5",
  "vm.min_unmapped_ratio": "1",
  "vm.mmap_min_addr": "4096",
  "vm.mmap_rnd_bits": "28",
  "vm.mmap_rnd_compat_bits": "8",
  "vm.nr_hugepages": "0",
  "vm.nr_hugepages_mempolicy": "0",
  "vm.nr_overcommit_hugepages": "0",
  "vm.nr_pdflush_threads": "0",
  "vm.numa_zonelist_order": "default",
  "vm.oom_dump_tasks": "1",
  "vm.oom_kill_allocating_task": "0",
  "vm.overcommit_kbytes": "0",
  "vm.overcommit_memory": "0",
  "vm.overcommit_ratio": "50",
  "vm.page-cluster": "3",
  "vm.panic_on_oom": "0",
  "vm.percpu_pagelist_fraction": "0",
  "vm.stat_interval": "1",
  "vm.swappiness": "30",
  "vm.user_reserve_kbytes": "14160",
  "vm.vfs_cache_pressure": "100",
  "vm.zone_reclaim_mode": "0"
}

Notes:

History: Was introduced in version 3.11.0 (2017)

See also: sysctlvalue()