How To Install dnstop on CentOS 8
Introduction
In this tutorial we learn how to install dnstop on CentOS 8.
What is dnstop
dnstop is a libpcap application (ala tcpdump) that displays various tables of DNS traffic on your network. dnstop supports both IPv4 and IPv6 addresses. To help find especially undesirable DNS queries, dnstop provides a number of filters. dnstop can either read packets from the live capture device, or from a tcpdump savefile.
We can use yum or dnf to install dnstop on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install dnstop.
Install dnstop 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 dnstop using dnf by running the following command:
sudo dnf -y install dnstop
Install dnstop 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 dnstop using yum by running the following command:
sudo yum -y install dnstop
How To Uninstall dnstop on CentOS 8
To uninstall only the dnstop package we can use the following command:
sudo dnf remove dnstop
dnstop Package Contents on CentOS 8
/usr/bin/dnstop
/usr/lib/.build-id
/usr/lib/.build-id/05
/usr/lib/.build-id/05/1088c6daa9ee5089dcede62a11611a338fe149
/usr/share/doc/dnstop
/usr/share/doc/dnstop/CHANGES
/usr/share/doc/dnstop/LICENSE
/usr/share/man/man8/dnstop.8.gz
References
Summary
In this tutorial we learn how to install dnstop on CentOS 8 using yum and dnf.