sysctl (command)
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sysctl
configure kernel parameters at runtime.
sysctl -a, --all
Display all values currently available.sysctl -p
Load in sysctl settings./etc/sysctl.d/
/etc/sysctl.conf
sysctl vm.swappiness
sysctl -w vm.nr_hugepages = 204832 sysctl -w vm.max_map_count=262144
iptables -t nat -A PREROUTING -i eno1 -p tcp --dport 5900 -j DNAT --to 127.0.0.1:5900 sysctl -w net.ipv4.ip_forward=1 sysctl -p /etc/sysctl.conf
sysctl -w kernel.perf_event_paranoid=X (node exporter [1])
sysctl -w net.ipv4.ip_forward=1
sysctl -w net.ipv6.conf.all.forwarding=1
sysctl -q net.ipv4.conf.all.src_valid_mark=1
sysctl -w vm.max_map_count=262144
net.ipv4.tcp_mtu_probing
(SSH2_MSG_KEX_ECDH_REPLY)
sysctl -w fs.file-max=100000
sysctl -w vm.nr_hugepages = 204832
Related terms[edit]
- Docker added support for
sysctl
options in docker services[2] in docker (2019-07-22) - Tunning
sysctl fs.file-max
- K8s 1.21 (April 2021) added support for sysctl
- Redis values.yml: sysctl.enabled: false
- prlimit
See also[edit]
sysctl, -a, -p, -w
,vm.swappiness
,/etc/sysctl.conf
,/etc/sysctl.d/
,net.ipv4.ip_forward
, OOM,Kernel.shmmax
,prlimit
- Linux Kernel: namespaces, Cgroups, OOM, proc, Linux Kernel changelog,
sysctl, userfaultfd
, Grub, ENOSPC, ENOMEM, DKMS, syscall, Transparent huge pages, smatch, sysfs, vm.swappiness, CFS, Runlevel, Jens Axboe, Consistent Network Device Naming, Initial ramdisk (initrd),modprobe
, MTD, Linux Kernel vulnerabilities,/sys/kernel/
, KernelCare,unix://
, Data Plane Development Kit (DPDK)
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