Error [ERR_TLS_CERT_ALTNAME_INVALID]: Hostname/IP does not match certificate's altnames:

when I tried to upload using node.js @aws-sdk/client-s3 setup

error message this 👇

Host: <BUCKET_NAME>.<BUCKET_NAME> is not in the cert's altnames: DNS:*,

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Bobby Iliev
Site Moderator
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February 23, 2023
Accepted Answer

Hi there,

The configuration should look as follows:

import { S3 } from "@aws-sdk/client-s3";

const s3Client = new S3({
    forcePathStyle: false, // Configures to use subdomain/virtual calling format.
    endpoint: "",
    region: "us-east-1",
    credentials: {
      accessKeyId: process.env.SPACES_KEY,
      secretAccessKey: process.env.SPACES_SECRET

export { s3Client };

You don’t have to specify the bucket name in front of the hostname:

Let me know how it goes!



For me it is fixed by giving forcePathStyle as true. I also did not specify bucket name in front of the url

  const s3Client = new S3Client({
      forcePathStyle: true,
      endpoint: process.env.OBJECT_STORAGE_URL,
      region: process.env.OBJECT_STORAGE_REGION,
      credentials: {
        accessKeyId: process.env.OBJECT_STORAGE_KEY,
        secretAccessKey: process.env.OBJECT_STORAGE_SECRET,

Like this

Site Moderator
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February 25, 2023

Hello @swimmingaquamarinedolphin

There is no need to specify the bucket name in front of the endpoint itself. The link which Bobby provided will give you good examples on how to use s3 client.

You can also explore other tools like s3cmd


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