How To Install x509watch on CentOS 8

x509watch is Simple tool to list expiring or expired X.509 certificates

Introduction

In this tutorial we learn how to install x509watch on CentOS 8.

What is `x509watch`

x509watch is a simple command line application, written in Perl, that can be used to list soon expiring or already expired X.509 certificates, such as e.g. SSL certificates. All certificates are searched by default in the standard PKI directory, but any other directory can be specified as parameter. Only Base64 encoded DER and PEM X.509 certificates are supported.

We can use yum or dnf to install x509watch on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install x509watch.

Install x509watch 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 x509watch using dnf by running the following command:

sudo dnf -y install x509watch

Install x509watch 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 x509watch using yum by running the following command:

sudo yum -y install x509watch

How To Uninstall x509watch on CentOS 8

To uninstall only the x509watch package we can use the following command:

sudo dnf remove x509watch

x509watch Package Contents on CentOS 8

/etc/sysconfig/x509watch
/usr/bin/x509watch
/usr/lib/systemd/system/x509watch.service
/usr/lib/systemd/system/x509watch.timer
/usr/libexec/x509watch
/usr/share/doc/x509watch
/usr/share/doc/x509watch/ChangeLog
/usr/share/doc/x509watch/README
/usr/share/licenses/x509watch
/usr/share/licenses/x509watch/COPYING

References

x509watch website

Summary

In this tutorial we learn how to install x509watch on CentOS 8 using yum and dnf.