/**
     * Private constructor to prevent instantiation.
     */
    private SystemUtil() {
    }

    /**
     * Gets the HTTP address of the search engine.
     *
     * @return The search engine HTTP address.
     */
    public static String getSearchEngineHttpAddress() {
        return System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
    }

        // Check IPv4 address
        WitnessNotification.WitnessIPAddress newIPv4 = newAddresses.get(0);
        assertEquals(ipv4, newIPv4.getAddress());
        assertTrue(newIPv4.isIPv4());
        assertFalse(newIPv4.isIPv6());
        assertEquals(WitnessNotification.WitnessIPAddress.IPV4, newIPv4.getFlags());

        // Check IPv6 address

import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.UniAddress;
import jcifs.smb.NtStatus;

    for (Entry<String, String> entry : TEST_STRINGS.entrySet()) {
      String desc = entry.getKey();
      TestSuite stringSuite = suiteForString(name, factory, entry.getValue(), desc);
      suite.addTest(stringSuite);
    }
    return suite;
  }

  private static TestSuite suiteForString(
      String name, ByteSinkFactory factory, String string, String desc) {
    byte[] bytes = string.getBytes(UTF_8);

    for (Entry<String, String> entry : TEST_STRINGS.entrySet()) {
      String desc = entry.getKey();
      TestSuite stringSuite = suiteForString(name, factory, entry.getValue(), desc);
      suite.addTest(stringSuite);
    }
    return suite;
  }

  private static TestSuite suiteForString(
      String name, ByteSinkFactory factory, String string, String desc) {
    byte[] bytes = string.getBytes(UTF_8);

  skip them for restrictions.

## Usage

Start MinIO in a distributed setup, with 'ftp/sftp' enabled.

```
minio server http://server{1...4}/disk{1...4}
   --ftp="address=:8021" --ftp="passive-port-range=30000-40000" \
   --sftp="address=:8022" --sftp="ssh-private-key=/home/miniouser/.ssh/id_rsa"
...
...
```

Following example shows connecting via ftp client using `minioadmin` credentials, and list a bucket named `runner`:

	wget -O mc https://dl.minio.io/client/mc/release/linux-amd64/mc &&
		chmod +x mc
fi

minio server -S /tmp/no-certs --address ":9001" "http://localhost:9001/tmp/multisitea/data/disterasure/xl{1...4}" \
	"http://localhost:9002/tmp/multisitea/data/disterasure/xl{5...8}" >/tmp/sitea_1.log 2>&1 &

minio server -S /tmp/no-certs --address ":9002" "http://localhost:9001/tmp/multisitea/data/disterasure/xl{1...4}" \

		chmod +x mc
fi

minio server --config-dir /tmp/minio-internal --address ":9001" http://localhost:9001/tmp/minio-internal-idp1/{1...4} http://localhost:9010/tmp/minio-internal-idp1/{5...8} >/tmp/minio1_1.log 2>&1 &
site1_pid1=$!

func (listener *httpListener) Addr() (addr net.Addr) {
	addr = listener.listeners[0].Addr()
	if len(listener.listeners) == 1 {
		return addr
	}

	if tcpAddr, ok := addr.(*net.TCPAddr); ok {
		return &net.TCPAddr{
			IP:   net.IPv4zero,
			Port: tcpAddr.Port,
			Zone: tcpAddr.Zone,
		}
	}
	panic("unknown address type on listener")
}

}

// ConnDialer is a function that dials a connection to the given address.
// There should be no retries in this function,
// and should have a timeout of something like 2 seconds.
// The returned net.Conn should also have quick disconnect on errors.
// The net.Conn must support all features as described by the net.Conn interface.
type ConnDialer func(ctx context.Context, address string) (net.Conn, error)