---
title: "Set Sysctl Tunable"
method: PUT
path: "/system/tunables"
tags: ["System"]
---

# Set Sysctl Tunable

`PUT /system/tunables`

Apply a writable sysctl tunable and persist it for re-application on boot

## Request body

- InternalHandlersSystemSetTunableRequest
  - `name` string, required
  - `value` string, required

## Response `200`

Success

- GithubComAlchemillahqSylveInternalAPIResponseAny
  - `data` unknown
  - `error` string
  - `message` string
  - `status` string

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `413` — Request Entity Too Large
- `500` — Internal Server Error

## Changes

- **2026-08-12** `9a5026bf9057` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/alchemillahq/apis/sylve-api/changes/system/tunables/put.md)

---

[API](https://skmtc.dev/alchemillahq/apis/sylve-api.md) · [All operations](https://skmtc.dev/alchemillahq/apis/sylve-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/alchemillahq/sylve-api/revisions/438105f28a33/schema)