There are total 8 records in domain name system (DNS) of nctu.edu.tw, which includes 2 Mail Exchange(MX) records, 3 Name Server(NS) records, 1 Pointer(PTR) record, 1 Start of Authority(SOA) record and 1 Text(TXT) record.
Host Name of the node to which this record pertains
Type Type of resource record in symbolic representation.
IP/Target
TTL Count of seconds that the resource record stays valid.
Extra Info Additional resource record-specific data
nctu.edu.tw
MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain.
gw1-mail.nctu.edu.tw
3600
pri: 5
nctu.edu.tw
MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain.
gw2-mail.nctu.edu.tw
3600
pri: 10
nctu.edu.tw
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
ns1.nchc.org.tw
299
nctu.edu.tw
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
ns.nctu.edu.tw
299
nctu.edu.tw
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
ns2.nctu.edu.tw
299
nctu.edu.tw
PTR Pointer Record: 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.
0.0.113.140.IN-ADDR.ARPA
300
nctu.edu.tw
SOA Start of Authority Record: 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.
TXT Text Record: 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.
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