Câu trả lời:
Tra cứu Máy chủ Tên truy xuất địa chỉ IP được liên kết với Tên miền.
Tra cứu tên miền (còn được gọi whois
) lấy dữ liệu đăng ký tên miền (chi tiết chủ sở hữu tên miền).
Trực tuyến sử dụng nhiều dịch vụ tra cứu máy chủ tên
Trên Windows sử dụng nslookup
Trên Unix sử dụng đào .
Đầu ra ví dụ ( http://ping.eu/nslookup/ ):
Ví dụ đầu ra (Windows nslookup
):
F:\test>nslookup redhat.com
Server: UnKnown
Address: 192.168.42.129
Non-authoritative answer:
Name: redhat.com
Addresses: 64:ff9b::d184:b769
209.132.183.105
Ví dụ đầu ra (Linux dig
):
$ dig redhat.com +nocomments +noquestion +noauthority +noadditional +nostats
; <<>> DiG 9.7.3-RedHat-9.7.3-2.el6 <<>> redhat.com +nocomments +noquestion +noauthority +noadditional +nostats
;; global options: +cmd
redhat.com. 9 IN A 209.132.183.81
Trực tuyến sử dụng một loạt các dịch vụ tra cứu tên miền .
Trên Unix sử dụng whois .
Kết quả ví dụ ( https://whois.domaintools.com/google.com ):
Domain Name: google.com
Registry Domain ID: 2138514_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2015-06-12T10:38:52-0700
Creation Date: 1997-09-15T00:00:00-0700
Registrar Registration Expiration Date: 2020-09-13T21:00:00-0700
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited)
Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited)
Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited)
Domain Status: serverUpdateProhibited (https://www.icann.org/epp#serverUpdateProhibited)
Domain Status: serverTransferProhibited (https://www.icann.org/epp#serverTransferProhibited)
Domain Status: serverDeleteProhibited (https://www.icann.org/epp#serverDeleteProhibited)
Registry Registrant ID:
Registrant Name: Dns Admin
Registrant Organization: Google Inc.
Registrant Street: Please contact , 1600 Amphitheatre Parkway
Registrant City: Mountain View
Registrant State/Province: CA
Registrant Postal Code: 94043
Registrant Country: US
Registrant Phone: +1.6502530000
Registrant Phone Ext:
Registrant Fax: +1.6506188571
Registrant Fax Ext:
Registrant Email:
Registry Admin ID:
Admin Name: DNS Admin
Admin Organization: Google Inc.
Admin Street: 1600 Amphitheatre Parkway
Admin City: Mountain View
Admin State/Province: CA
Admin Postal Code: 94043
Admin Country: US
Admin Phone: +1.6506234000
Admin Phone Ext:
Admin Fax: +1.6506188571
Admin Fax Ext:
Admin Email:
Registry Tech ID:
Tech Name: DNS Admin
Tech Organization: Google Inc.
Tech Street: 2400 E. Bayshore Pkwy
Tech City: Mountain View
Tech State/Province: CA
Tech Postal Code: 94043
Tech Country: US
Tech Phone: +1.6503300100
Tech Phone Ext:
Tech Fax: +1.6506181499
Tech Fax Ext:
Tech Email:
Name Server: ns1.google.com
Name Server: ns2.google.com
Name Server: ns4.google.com
Name Server: ns3.google.com
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
Nguồn https://whois.domaintools.com/google.com
Ví dụ đầu ra (Linux whois
):
$ whois google.com
Registrant:
Dns Admin
Google Inc.
Please contact contact-admin@google.com 1600 Amphitheatre Parkway
Mountain View CA 94043
US
dns-admin@google.com +1.6502530000 Fax: +1.6506188571
Domain Name: google.com
Registrar Name: Markmonitor.com
Registrar Whois: whois.markmonitor.com
Registrar Homepage: http://www.markmonitor.com
Administrative Contact:
DNS Admin
Google Inc.
1600 Amphitheatre Parkway
Mountain View CA 94043
US
dns-admin@google.com +1.6506234000 Fax: +1.6506188571
Technical Contact, Zone Contact:
DNS Admin
Google Inc.
2400 E. Bayshore Pkwy
Mountain View CA 94043
US
dns-admin@google.com +1.6503300100 Fax: +1.6506181499
Created on..............: 1997-09-15.
Expires on..............: 2011-09-13.
Record last updated on..: 2010-03-30.