}

    // It is not any kind of IP address; must be a domain name or invalid.

    // TODO(user): different versions of this for different factories?
    InternetDomainName domain = InternetDomainName.from(host);

    if (domain.hasPublicSuffix()) {
      return new HostSpecifier(domain.toString());
    }

    throw new IllegalArgumentException(
        "Domain name does not have a recognized public suffix: " + host);
  }

package jcifs.dcerpc.msrpc;

import jcifs.dcerpc.rpc;

/**
 * MSRPC implementation for opening a domain handle.
 * This class provides functionality to open a handle to a SAM domain
 * using the SAMR RPC interface.
 */
public class MsrpcSamrOpenDomain extends samr.SamrOpenDomain {

    /**
     * Creates a new request to open a domain handle.
     *
     * @param handle the SAM policy handle

   * assertNull(getEffectiveTldPlusOne("mymacbook"));
   * ```
   *
   * @param domain A canonicalized domain. An International Domain Name (IDN) should be punycode
   *     encoded.
   */
  fun getEffectiveTldPlusOne(domain: String): String? {
    // We use UTF-8 in the list so we need to convert to Unicode.
    val unicodeDomain = IDN.toUnicode(domain)
    val domainLabels = splitDomain(unicodeDomain)

     */
    protected NtlmServlet() {
        super();
    }

    /** The default domain for NTLM authentication */
    private String defaultDomain;

    /** The domain controller for authentication */
    private String domainController;

    /** Flag to enable load balancing across domain controllers */
    private boolean loadBalance;

    /** Flag to enable basic authentication */

    // checkPublicSuffix("a.b.example.local", null);
    // TLD with only 1 rule.
    checkPublicSuffix("biz", null)
    checkPublicSuffix("domain.biz", "domain.biz")
    checkPublicSuffix("b.domain.biz", "domain.biz")
    checkPublicSuffix("a.b.domain.biz", "domain.biz")
    // TLD with some 2-level rules.
    checkPublicSuffix("com", null)
    checkPublicSuffix("example.com", "example.com")

import jcifs.smb1.smb1.SmbException;

/**
 * Handle for Security Account Manager (SAM) domain operations.
 * This class represents an open handle to a SAM domain and provides
 * operations for managing domain users, groups, and aliases.
 */
public class SamrDomainHandle extends rpc.policy_handle {

    DcerpcHandle handle;

    /**
     * Creates a new SAM domain handle.
     *
     * @param handle the DCE/RPC handle for communication

  private static final class SerializedForm<C extends Comparable> implements Serializable {
    private final DiscreteDomain<C> domain;

    private SerializedForm(DiscreteDomain<C> domain) {
      this.domain = domain;
    }

    private Object readResolve() {
      return new EmptyContiguousSet<>(domain);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

        final String domain = tc.getConfig().getDefaultDomain();
        byte[] ti = TARGET_INFO_CACHE.get(domain);
        if (ti != null) {
            return ti;
        }

        ti = makeTargetInfo(tc, domain);
        TARGET_INFO_CACHE.put(domain, ti);
        return ti;
    }

    /**
     * @param domain
     * @param domainLength
     * @param server
     * @return

        /** The SAM server handle */
        public rpc.policy_handle handle;
        /** The desired access rights to the domain */
        public int access_mask;
        /** The SID of the domain to open */
        public rpc.sid_t sid;
        /** The returned handle to the domain */
        public rpc.policy_handle domain_handle;

        /**
         * Constructs a SamrOpenDomain request.
         *

        /** The SAM server handle */
        public rpc.policy_handle handle;
        /** The desired access rights to the domain */
        public int access_mask;
        /** The SID of the domain to open */
        public rpc.sid_t sid;
        /** The returned handle to the domain */
        public rpc.policy_handle domain_handle;

        /**
         * Constructs a SamrOpenDomain request.
         *