---
title: "Replace jail resolv.conf configuration"
method: PUT
path: "/jail/{ctid}/options/resolv-conf"
tags: ["Jail"]
---

# Replace jail resolv.conf configuration

`PUT /jail/{ctid}/options/resolv-conf`

## Request

- Base URL: `https://sylve.lan:8181/api`
- URL: `https://sylve.lan:8181/api/jail/{ctid}/options/resolv-conf`
- Auth: API key in header `Authorization`

Replace /etc/resolv.conf inside a jail; an explicit empty string removes the managed file

## Path parameters

- `ctid` integer, required

## Request body

- InternalHandlersJailModifyResolvConfRequest
  - `resolvConf` 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
- `409`: Conflict
- `413`: Request Entity Too Large
- `500`: Internal Server Error

## Changes

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

[Operation history](https://skmtc.dev/alchemillahq/apis/sylve-api/changes/jail/:ctid/options/resolv-conf/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.dev/alchemillahq/apis/sylve-api/revisions/9565cdd0abf5?raw)