{* ../../docs_src/header_param_models/tutorial003_an_py310.py hl[19] *}

/// warning

Before setting `convert_underscores` to `False`, bear in mind that some HTTP proxies and servers disallow the usage of headers with underscores.

///

## Summary { #summary }

`mc`](#test-using-minio-client-mc) for more information on using the `mc` commandline tool. For application developers, see <https://min.io/docs/minio/linux/developers/minio-drivers.html> to view MinIO SDKs for supported languages. > NOTE: Standalone MinIO servers are best suited for early development and evaluation. Certain features such as versioning, object locking, and bucket replication require distributed deploying MinIO with Erasure Coding. For extended development and production, deploy MinIO with Erasure...

## Configuring Site Replication

- Configure an alias in `mc` for each of the sites. For example if you have three MinIO sites, you may run:

```sh

![bucket-lookup](https://github.com/minio/minio/blob/master/docs/federation/lookup/bucket-lookup.png?raw=true)

### Environment variables

#### MINIO_ETCD_ENDPOINTS

This is comma separated list of etcd servers that you want to use as the MinIO federation back-end. This should
be same across the federated deployment, i.e. all the MinIO instances within a federated deployment should use same
etcd back-end.

#### MINIO_DOMAIN

	if _, maxLimit, err = sys.GetMaxOpenFileLimit(); err != nil {
		return err
	}

	if maxLimit < 4096 && runtime.GOOS != globalWindowsOSName {
		logger.Info("WARNING: maximum file descriptor limit %d is too low for production servers. At least 4096 is recommended. Fix with \"ulimit -n 4096\"",
			maxLimit)
	}

	if err = sys.SetMaxOpenFileLimit(maxLimit, maxLimit); err != nil {
		return err
	}

	_, vssLimit, err := sys.GetMaxMemoryLimit()

                    bufferIndex += stringWireLength(this.nativeFileSystem, bufferIndex);
                }
            } catch (final Exception e) {
                // Ignore errors - some servers don't properly return this field
                // Keep the default empty string value
            }
        }

        return bufferIndex - start;
    }

    @Override
    public String toString() {

- **Key Derivation**: SMB3 KDF implementation with dialect-specific parameters
- **Pre-Authentication Integrity**: SMB 3.1.1 PAI for preventing downgrade attacks
- **Automatic Detection**: Encryption automatically enabled when servers require it
- **Secure Key Management**: Proper key derivation and nonce generation

### Core Features
- **Per-context configuration**: No global state, each context encapsulates configuration

import jcifs.util.Strings;

/**
 * Represents a DFS (Distributed File System) referral entry containing server redirection information.
 * This class handles DFS referral responses that redirect clients to alternate servers for accessing
 * distributed file system resources, supporting multiple DFS versions and referral types.
 */
public class Referral implements Decodable {

    /**
     * Default constructor for Referral.
     */

     * @throws SmbException if an error occurs checking signing status
     */
    boolean isSigningEnforced() throws SmbException;

    /**
     * Gets the server's encryption key for authentication.
     *
     * @return the encryption key used by the server
     */
    byte[] getServerEncryptionKey();

    /**
     * Gets or creates an SMB session for the given context.

     * @return true if the context is established, false otherwise
     */
    public boolean isEstablished() {
        return isEstablished;
    }

    /**
     * Gets the server's NTLM challenge bytes.
     * @return the server challenge bytes
     */
    public byte[] getServerChallenge() {
        return serverChallenge;
    }

    /**