octal_digit   = "0" … "7" .
hex_digit     = "0" … "9" | "A" … "F" | "a" … "f" .
</pre>

<h2 id="Lexical_elements">Lexical elements</h2>

<h3 id="Comments">Comments</h3>

<p>
Comments serve as program documentation. There are two forms:
</p>

<ol>
<li>
<i>Line comments</i> start with the character sequence <code>//</code>
and stop at the end of the line.
</li>
<li>

            "uid": "${DS_PROMETHEUS}"
          },
          "exemplar": true,
          "expr": "sum by (server) (rate(minio_s3_traffic_received_bytes{job=~\"$scrape_jobs\"}[$__rate_interval]))",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "Data Received [{{server}}]",
          "refId": "A"
        }
      ],
      "title": "S3 API Ingress Rate ",

- `X-Amz-Server-Side-Encryption-Customer-Key`: Base64 encoded new key.
- `X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key`: Base64 encoded current key.

Such a special COPY request is also known as S3 SSE-C key rotation.

### Server-Side Encryption with a KMS

SSE-S3 allows an S3 client to en/decrypt an object at the MinIO server using a KMS. The MinIO
server only assumes that the KMS provides two services:

    upstream minio {
        server minio1:9000 max_fails=1 fail_timeout=10s;
        server minio2:9000 max_fails=1 fail_timeout=10s;
        server minio3:9000 max_fails=1 fail_timeout=10s;
        server minio4:9000 max_fails=1 fail_timeout=10s;
    }

    upstream console {
        ip_hash;
        server minio1:9001;
        server minio2:9001;
        server minio3:9001;
        server minio4:9001;
    }

```sh
export MINIO_POLICY_PLUGIN_URL=http://localhost:8181/v1/data/httpapi/authz/allow
export MINIO_CI_CD=1
export MINIO_ROOT_USER=minio
export MINIO_ROOT_PASSWORD=minio123
minio server /mnt/data
```

### 5. Test with a regular IAM user

Ensure that `mc` is installed and the configured with the above server with the alias `myminio`.

```sh

  @Test
  fun multipleDnsLookupsForSingleCall() {
    server.enqueue(
      MockResponse.Builder()
        .code(301)
        .setHeader("Location", "http://www.fakeurl:" + server.port)
        .build(),
    )
    server.enqueue(MockResponse())
    val dns = FakeDns()
    dns["fakeurl"] = client.dns.lookup(server.hostName)
    dns["www.fakeurl"] = client.dns.lookup(server.hostName)
    client =
      client.newBuilder()

			t.Fatalf("Case %v: server.Addrs: expected: %v, got: %v", (i + 1), testCase.addrs, server.Addrs)
		}

		if testCase.certFn == nil {
			if server.TLSConfig != nil {
				t.Fatalf("Case %v: server.TLSConfig: expected: <nil>, got: %v", (i + 1), server.TLSConfig)
			}
		} else {
			if server.TLSConfig == nil {
				t.Fatalf("Case %v: server.TLSConfig: expected: <non-nil>, got: <nil>", (i + 1))
			}
		}

To host multiple tenants on a single machine, run one MinIO Server per tenant with a dedicated HTTPS port, configuration, and data directory.

### 1.1 Host Multiple Tenants on a Single Drive

Use the following commands to host 3 tenants on a single drive:

```sh
minio server --address :9001 /data/tenant1
minio server --address :9002 /data/tenant2
minio server --address :9003 /data/tenant3
```

    assertThat(webSocket.receivedPongCount()).isEqualTo(0)
    assertThat(server.sentPingCount()).isEqualTo(0)
    assertThat(server.receivedPingCount()).isEqualTo(0)
    assertThat(server.receivedPongCount()).isEqualTo(0)
    closeWebSockets(webSocket, server)
  }

  /**
   * Configure the websocket to send pings every 500 ms. Artificially prevent the server from

  @Throws(IOException::class)
  fun secondCallEventSequence() {
    enableTls()
    server!!.protocols = listOf(Protocol.HTTP_2, Protocol.HTTP_1_1)
    server!!.enqueue(MockResponse())
    server!!.enqueue(MockResponse())

    client.newCall(Request(server!!.url("/")))
      .execute().close()

    client.newCall(Request(server!!.url("/")))
      .execute().close()