How To Install whois on CentOS 8
Introduction
In this tutorial we learn how to install whois on CentOS 8.
What is whois
Searches for an object in a RFC 3912 database. This version of the WHOIS client tries to guess the right server to ask for the specified object. If no guess can be made it will connect to whois.networksolutions.com for NIC handles or whois.arin.net for IPv4 addresses and network names.
We can use yum or dnf to install whois on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install whois.
Install whois on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install whois using dnf by running the following command:
sudo dnf -y install whois
Install whois on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install whois using yum by running the following command:
sudo yum -y install whois
How To Uninstall whois on CentOS 8
To uninstall only the whois package we can use the following command:
sudo dnf remove whois
whois Package Contents on CentOS 8
/etc/whois.conf
/usr/bin/whois
/usr/bin/whois.md
/usr/lib/.build-id
/usr/lib/.build-id/a1
/usr/lib/.build-id/a1/2de8a0282af4996ee269121fd2817299a9f63d
/usr/share/doc/whois
/usr/share/doc/whois/README
/usr/share/doc/whois/changelog
/usr/share/licenses/whois
/usr/share/licenses/whois/COPYING
/usr/share/licenses/whois/copyright
/usr/share/man/man1/whois.1.gz
/usr/share/man/man1/whois.md.1.gz
/usr/share/man/man5/whois.conf.5.gz
References
Summary
In this tutorial we learn how to install whois on CentOS 8 using yum and dnf.