DnsRecordType Class — netty Architecture

Source Code

codec-dns/src/main/java/io/netty/handler/codec/dns/DnsRecordType.java lines 26–414

public class DnsRecordType implements Comparable<DnsRecordType> {

    /**
     * Address record RFC 1035 Returns a 32-bit IPv4 address, most commonly used
     * to map hostnames to an IP address of the host, but also used for DNSBLs,
     * storing subnet masks in RFC 1101, etc.
     */
    public static final DnsRecordType A = new DnsRecordType(0x0001, "A");

    /**
     * Name server record RFC 1035 Delegates a DNS zone to use the given
     * authoritative name servers
     */
    public static final DnsRecordType NS = new DnsRecordType(0x0002, "NS");

    /**
     * Canonical name record RFC 1035 Alias of one name to another: the DNS
     * lookup will continue by retrying the lookup with the new name.
     */
    public static final DnsRecordType CNAME = new DnsRecordType(0x0005, "CNAME");

    /**
     * Start of [a zone of] authority record RFC 1035 and RFC 2308 Specifies
     * authoritative information about a DNS zone, including the primary name
     * server, the email of the domain administrator, the domain serial number,
     * and several timers relating to refreshing the zone.
     */
    public static final DnsRecordType SOA = new DnsRecordType(0x0006, "SOA");

    /**
     * Pointer record RFC 1035 Pointer to a canonical name. Unlike a CNAME, DNS
     * processing does NOT proceed, just the name is returned. The most common
     * use is for implementing reverse DNS lookups, but other uses include such
     * things as DNS-SD.
     */
    public static final DnsRecordType PTR = new DnsRecordType(0x000c, "PTR");

    /**
     * Mail exchange record RFC 1035 Maps a domain name to a list of message
     * transfer agents for that domain.
     */
    public static final DnsRecordType MX = new DnsRecordType(0x000f, "MX");

    /**
     * Text record RFC 1035 Originally for arbitrary human-readable text in a
     * DNS record. Since the early 1990s, however, this record more often
     * carries machine-readable data, such as specified by RFC 1464,
     * opportunistic encryption, Sender Policy Framework, DKIM, DMARC DNS-SD,
     * etc.
     */
    public static final DnsRecordType TXT = new DnsRecordType(0x0010, "TXT");

    /**
     * Responsible person record RFC 1183 Information about the responsible
     * person(s) for the domain. Usually an email address with the @ replaced by
     * a .
     */
    public static final DnsRecordType RP = new DnsRecordType(0x0011, "RP");

    /**
     * AFS database record RFC 1183 Location of database servers of an AFS cell.
     * This record is commonly used by AFS clients to contact AFS cells outside
     * their local domain. A subtype of this record is used by the obsolete
     * DCE/DFS file system.
     */
    public static final DnsRecordType AFSDB = new DnsRecordType(0x0012, "AFSDB");

    /**
     * Signature record RFC 2535 Signature record used in SIG(0) (RFC 2931) and
     * TKEY (RFC 2930). RFC 3755 designated RRSIG as the replacement for SIG for
     * use within DNSSEC.
     */
    public static final DnsRecordType SIG = new DnsRecordType(0x0018, "SIG");

    /**
     * key record RFC 2535 and RFC 2930 Used only for SIG(0) (RFC 2931) and TKEY
     * (RFC 2930). RFC 3445 eliminated their use for application keys and
     * limited their use to DNSSEC. RFC 3755 designates DNSKEY as the
     * replacement within DNSSEC. RFC 4025 designates IPSECKEY as the
     * replacement for use with IPsec.
     */