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@@ -7,24 +7,26 @@ This guide explains how to configure MinIO Server with TLS certificates on Linux
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3. [Generate and use Self-signed Keys and Certificates with MinIO](#generate-use-self-signed-keys-certificates)
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4. [Install Certificates from Third-party CAs](#install-certificates-from-third-party-cas)
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## <a name="install-minio-server"></a>1. Install MinIO Server
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## 1. Install MinIO Server
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Install MinIO Server using the instructions in the [MinIO Quickstart Guide](https://docs.min.io/docs/minio-quickstart-guide).
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## <a name="use-an-existing-key-and-certificate-with-minio"></a>2. Use an Existing Key and Certificate with MinIO
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## 2. Use an Existing Key and Certificate with MinIO
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This section describes how to use a private key and public certificate that have been obtained from a certificate authority (CA). If these files have not been obtained, skip to [3. Generate Self-signed Certificates](#generate-use-self-signed-keys-certificates) or generate them with [Let's Encrypt](https://letsencrypt.org) using these instructions: [Generate Let's Encrypt certificate using Certbot for MinIO](https://docs.min.io/docs/generate-let-s-encypt-certificate-using-concert-for-minio.html).
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Copy the existing private key and public certificate to the `certs` directory. The default certs directory is:
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* **Linux:** `${HOME}/.minio/certs`
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* **Windows:** `%%USERPROFILE%%\.minio\certs`
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**Note:**
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* Location of custom certs directory can be specified using `--certs-dir` command line option.
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* Inside the `certs` directory, the private key must by named `private.key` and the public key must be named `public.crt`.
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* A certificate signed by a CA contains information about the issued identity (e.g. name, expiry, public key) and any intermediate certificates. The root CA is not included.
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## <a name="generate-use-self-signed-keys-certificates"></a>3. Generate and use Self-signed Keys and Certificates with MinIO
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## 3. Generate and use Self-signed Keys and Certificates with MinIO
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This section describes how to generate a self-signed certificate using various tools:
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@@ -34,10 +36,11 @@ This section describes how to generate a self-signed certificate using various t
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* 3.4 [Use GnuTLS (for Windows) to Generate a Certificate](#using-gnu-tls)
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**Note:**
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* MinIO only supports keys and certificates in PEM format on Linux and Windows.
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* MinIO doesn't currently support PFX certificates.
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### <a name="using-go"></a>3.1 Use `certgen` to Generate a Certificate
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### 3.1 Use `certgen` to Generate a Certificate
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Download [`certgen`](https://github.com/minio/certgen/releases/latest) for your specific operating system and platform.
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@@ -54,7 +57,7 @@ A response similar to this one should be displayed:
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2018/11/21 10:16:18 wrote private.key
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```
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### <a name="using-open-ssl"></a>3.2 Use OpenSSL to Generate a Certificate
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### 3.2 Use OpenSSL to Generate a Certificate
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Use one of the following methods to generate a certificate using `openssl`:
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@@ -62,7 +65,7 @@ Use one of the following methods to generate a certificate using `openssl`:
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* 3.2.2 [Generate a private key with RSA](#generate-private-key-with-rsa)
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* 3.2.3 [Generate a self-signed certificate](#generate-a-self-signed-certificate)
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#### 3.2.1 <a name="generate-private-key-with-ecdsa"></a>Generate a private key with ECDSA.
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#### 3.2.1 Generate a private key with ECDSA
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Use the following command to generate a private key with ECDSA:
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@@ -85,13 +88,14 @@ openssl ecparam -genkey -name prime256v1 | openssl ec -aes256 -out private.key -
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**Note:** NIST curves P-384 and P-521 are not currently supported.
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#### 3.2.2 <a name="generate-private-key-with-rsa"></a>Generate a private key with RSA.
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#### 3.2.2 Generate a private key with RSA
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Use the following command to generate a private key with RSA:
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```sh
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openssl genrsa -out private.key 2048
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```
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A response similar to this one should be displayed:
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```
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@@ -119,7 +123,7 @@ The default OpenSSL format for private encrypted keys is PKCS-8, but MinIO only
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openssl rsa -in private-pkcs8-key.key -aes256 -passout pass:PASSWORD -out private.key
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```
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#### <a name="generate-a-self-signed-certificate"></a>3.2.3 Generate a self-signed certificate.
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#### 3.2.3 Generate a self-signed certificate
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Create a file named `openssl.conf` with the content below. Set `IP.1` and/or `DNS.1` to point to the correct IP/DNS addresses:
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@@ -151,11 +155,12 @@ Run `openssl` by specifying the configuration file and enter a passphrase if pro
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openssl req -new -x509 -nodes -days 730 -keyout private.key -out public.crt -config openssl.conf
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```
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### <a name="using-gnu-tls"></a>3.3 Use GnuTLS (for Windows) to Generate a Certificate
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### 3.3 Use GnuTLS (for Windows) to Generate a Certificate
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This section describes how to use GnuTLS on Windows to generate a certificate.
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#### 3.3.1 Install and configure GnuTLS.
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#### 3.3.1 Install and configure GnuTLS
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Download and decompress the Windows version of GnuTLS from [here](http://www.gnutls.org/download.html).
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Use PowerShell to add the path of the extracted GnuTLS binary to the system path:
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@@ -166,7 +171,8 @@ setx path "%path%;C:\Users\MyUser\Downloads\gnutls-3.4.9-w64\bin"
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**Note:** PowerShell may need to be restarted for this change to take effect.
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#### 3.3.2 Generate a private key:
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#### 3.3.2 Generate a private key
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Run the following command to generate a private `.key` file:
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```
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@@ -179,7 +185,7 @@ A response similar to this one should be displayed:
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Generating a 3072 bit RSA private key...
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```
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#### 3.3.3 Generate a public certificate:
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#### 3.3.3 Generate a public certificate
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Create a file called `cert.cnf` with the content below. This file contains all of the information necessary to generate a certificate using `certtool.exe`:
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@@ -224,13 +230,15 @@ Run `certtool.exe` and specify the configuration file to generate a certificate:
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certtool.exe --generate-self-signed --load-privkey private.key --template cert.cnf --outfile public.crt
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```
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## <a name="install-certificates-from-third-party-cas"></a>4. Install Certificates from Third-party CAs
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## 4. Install Certificates from Third-party CAs
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MinIO can connect to other servers, including MinIO nodes or other server types such as NATs and Redis. If these servers use certificates that were not registered with a known CA, add trust for these certificates to MinIO Server by placing these certificates under one of the following MinIO configuration paths:
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* **Linux:** `~/.minio/certs/CAs/`
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* **Windows**: `C:\Users\<Username>\.minio\certs\CAs`
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# Explore Further
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* [TLS Configuration for MinIO server on Kubernetes](https://github.com/minio/minio/tree/master/docs/tls/kubernetes)
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* [MinIO Client Complete Guide](https://docs.min.io/docs/minio-client-complete-guide)
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* [Generate Let's Encrypt Certificate](https://docs.min.io/docs/generate-let-s-encypt-certificate-using-concert-for-minio)
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