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Whois command in linux

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  1. whois – A CLI Tool To Check Information About Ownership Of A Domain Name And IP Address
  2. How To Install whois Command In Linux?
  3. How To Check Domain Information Using whois Command In Linux?
  4. How To Check IP Address Information Using whois Command In Linux?
  5. How To Check Multiple Domains Expiry Date Using Shell Script?
  6. How to Get Domain and IP Address Information Using WHOIS Command
  7. How to Find IP Address Information
  8. How to Find Domain Information

whois – A CLI Tool To Check Information About Ownership Of A Domain Name And IP Address

whois is a command line utility that fetch information about ownership of a domain name from whois server (whois database).

WHOIS is a query and response protocol that is widely used to gather information about registered domain name.

There are many third party websites were available to check the information.

However, as a Linux administrator we should know about this utility.

If you are looking for alternative then you can give a try with jwhois command.

It’s a small geek and show you the numerous information right from your terminal.

If you are looking for DNS related records, the following URLs may help you out.

  • Check DNS (Domain Name Server) Records In Linux Using Nslookup Command
  • Check DNS (Domain Name Server) Records In Linux Using Dig Command
  • Check DNS (Domain Name Server) Records In Linux Using Host Command
  • 3 Easy Ways To Check DNS (Domain Name Server) Records In Linux Terminal
  • List Of DNS Records And Its Definition
  • How To Check (Reverse DNS) RDNS Records In Linux?
  • How To Clear/Flush DNS Cache In Linux?

It fetches the following inflammations such as Registrant Name, Registrant Contact Details, Registrant Country, Registrar Info, Domain Created Date, Domain Expiry Date and Name Server Information, etc,.

There are many domain extensions were available in the market and it’s split based on the hierarchy.

The following two top level domains are very famous, the top-level domains (TLDs) which includes generic top-level domains (gTLD) such as .com, .info, .net, edu, and .org, and the country code top-level domains (ccTLDs) such as .in, .us, .nz etc,.

A fully qualified domain name (FQDN) looks like www.2daygeek.com. .

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The hierarchy of fully qualified domain name looks like below.

. ----> Root Level | com ----> Top Level Domains (TLDs) | 2daygeek ----> Second Level Domains | support ----> Sub-Domain Of Parent

How To Install whois Command In Linux?

This isn’t pre-installed on your system and it’s available in most of the distribution repository. Hence, we can easily install it.

For Fedora system, use DNF Command to install whois.

For Debian/Ubuntu systems, use APT-GET Command or APT Command to install whois.

For Arch Linux based systems, use Pacman Command to install whois.

For RHEL/CentOS systems, use YUM Command to install whois.

For openSUSE Leap system, use Zypper Command to install whois.

$ sudo zypper install whois

How To Check Domain Information Using whois Command In Linux?

To get information about ownership of domain and other information’s, run the following command.

# whois 2daygeek.com Domain Name: 2DAYGEEK.COM Registry Domain ID: 1828363680_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.syrahost.com Registrar URL: http://www.crazydomains.com Updated Date: 2014-08-22T00:31:39Z Creation Date: 2013-09-21T00:00:00Z Registrar Registration Expiration Date: 2023-09-21T00:00:00Z Registrar: CRAZY DOMAINS FZ-LLC Registrar IANA ID: 1291 Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +61.894220890 Reseller: CRAZY DOMAINS Domain Status: ok https://icann.org/epp#ok Registry Registrant ID: R-014680853-SN Registrant Name: MAGESH MUTHU Registrant Organization: Registrant Street: NO.5, SECOND FLOOR, TRUSTPURAM, PULIYUR MAIN ROAD,KODAMBAKKAM Registrant City: CHENNAI Registrant State/Province: TAMILNADU Registrant Postal Code: 600024 Registrant Country: IN Registrant Phone: +91.9600106327 Registrant Phone Ext: Registrant Email: [email protected] Registry Admin ID: C-004194513-SN Admin Name: MAGESH MARUTHAMUTHU Admin Organization: Admin Street: NO.5, SECOND FLOOR, TRUSTPURAM, PUILYUR MAIN ROAD, KODAMBAKKAM Admin City: CHENNAI Admin State/Province: TAMILNADU Admin Postal Code: 600024 Admin Country: IN Admin Phone: +91.9600106327 Admin Phone Ext: Admin Email: [email protected] Registry Tech ID: C-004194513-SN Tech Name: MAGESH MARUTHAMUTHU Tech Organization: Tech Street: NO.5, SECOND FLOOR, TRUSTPURAM, PUILYUR MAIN ROAD, KODAMBAKKAM Tech City: CHENNAI Tech State/Province: TAMILNADU Tech Postal Code: 600024 Tech Country: IN Tech Phone: +91.9600106327 Tech Phone Ext: Tech Email: [email protected] Name Server: JEAN.NS.CLOUDFLARE.COM Name Server: VIN.NS.CLOUDFLARE.COM DNSSEC: unsigned URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/ >>> Last update of WHOIS database: 2014-08-22T00:31:39Z 

How To Check IP Address Information Using whois Command In Linux?


To get information about ownership of given IP address and other information's, run the following command.


# whois 103.5.134.181 % [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '103.5.132.0 - 103.5.135.255' % Abuse contact for '103.5.132.0 - 103.5.135.255' is '[email protected]' inetnum: 103.5.132.0 - 103.5.135.255 netname: BBNL-IN descr: BANGALORE BROADBAND NETWORK PVT LTD descr: 100 Ag's colony 4th Main road descr: Anandnagar country: IN admin-c: BBNP1-AP tech-c: BBNP1-AP mnt-by: MAINT-IN-IRINN mnt-lower: MAINT-BBNL-IN mnt-routes: MAINT-BBNL-IN mnt-irt: IRT-BBNL-IN status: ALLOCATED PORTABLE last-modified: 2013-01-16T03:53:44Z source: APNIC irt: IRT-BBNL-IN address: 100 Ag's colony, 4th main road e-mail: [email protected] abuse-mailbox: [email protected] admin-c: BBNP1-AP tech-c: BBNP1-AP auth: # Filtered mnt-by: MAINT-BBNL-IN last-modified: 2017-12-01T04:58:58Z source: APNIC role: BANGALORE BROADBAND NETWORK PVT LTD - network admi address: 100 Ag's colony, 4th main road country: IN phone: +91-9980947375 e-mail: [email protected] admin-c: BBNP1-AP tech-c: BBNP1-AP nic-hdl: BBNP1-AP mnt-by: MAINT-BBNL-IN last-modified: 2010-12-21T05:40:28Z source: APNIC % Information related to '103.5.132.0/22AS55947' route: 103.5.132.0/22 descr: ip pool of 103.5.132.0/22 for BBNL origin: AS55947 country: IN notify: [email protected] mnt-lower: MAINT-BBNL-IN mnt-routes: MAINT-BBNL-IN mnt-by: MAINT-BBNL-IN last-modified: 2011-11-24T05:53:50Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-JP4)
 
How To Check Multiple Domains Expiry Date Using Shell Script?
 
If you have multiple domains and want to check those expiry date. I would advise you to use the following small shell script.
 
Shell script for domain expiry date check.
 
# vi whois-check.sh #!/bin/bash # List You Domain Here DOMAINS="2daygeek.com linuxtechnews.com" for domain in $DOMAINS do echo -n "$domain - " whois $domain | grep 'Expiration' | awk '' echo "" done
 
Set an executable permission to whois-check.sh file.
 
Finally run the script to achieve this.
 
# sh whois-check.sh 2daygeek.com - Expiration Date: 2023-09-21T00:00:00Z linuxtechnews.com - Expiration Date: 2020-05-19T04:16:10Z
 
Источник
 
How to Get Domain and IP Address Information Using WHOIS Command
 
WHOIS is a TCP-based query and response protocol that is commonly used to provide information services to Internet users. It returns information about the registered Domain Names, an IP address block, Name Servers and a much wider range of information services.
 
In Linux, the whois command line utility is a WHOIS client for communicating with the WHOIS server (or database host) which listen to requests on the well-known port number 43, which stores and delivers database content in a human-readable format.
 
whois command line utility does not come pre-installed on many Linux distributions, run the appropriate command below for your distribution to install it.
 
# yum install whois #RHEL/CentOS # dnf install whois #Fedora 22+ $ sudo apt install whois #Debian/Ubuntu
 
How to Find IP Address Information
 
To get the information about specific IP Address issue the command as shown in the below example.
 
$ whois 216.58.206.46 # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/whois_tou.html # # If you see inaccuracies in the results, please report at # https://www.arin.net/public/whoisinaccuracy/index.xhtml # # # The following results may also be obtained via: # https://whois.arin.net/rest/nets;q=216.58.206.46?showDetails=true&showARIN=false&showNonArinTopLevelNet=false&ext=netref2 # NetRange: 216.58.192.0 - 216.58.223.255 CIDR: 216.58.192.0/19 NetName: GOOGLE NetHandle: NET-216-58-192-0-1 Parent: NET216 (NET-216-0-0-0-0) NetType: Direct Allocation OriginAS: AS15169 Organization: Google LLC (GOGL) RegDate: 2012-01-27 Updated: 2012-01-27 Ref: https://whois.arin.net/rest/net/NET-216-58-192-0-1 OrgName: Google LLC OrgId: GOGL Address: 1600 Amphitheatre Parkway City: Mountain View StateProv: CA PostalCode: 94043 Country: US RegDate: 2000-03-30 Updated: 2017-12-21 Ref: https://whois.arin.net/rest/org/GOGL .
 
How to Find Domain Information
 
To get the information about the registered domain, simply issue the following command with the domain name. It will retrieve domain data including availability, ownership, creation, expiration details, name servers, etc.
 
$ whois 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: 2011-07-20T16:55:31Z Creation Date: 1997-09-15T04:00:00Z Registry Expiry Date: 2020-09-14T04:00:00Z Registrar: MarkMonitor Inc. Registrar IANA ID: 292 Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +1.2083895740 Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited Name Server: NS1.GOOGLE.COM Name Server: NS2.GOOGLE.COM Name Server: NS3.GOOGLE.COM Name Server: NS4.GOOGLE.COM .
 
The formatting of information will differ based on the WHOIS server used. In addition, one downside of WHOIS is the lack of full access to the data, therefore check out these useful guides for querying DNS information in Linux:
 
If you have any queries or information about the article that you want to share with us, use the comment form below.
 
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