How To Install fetch-crl on CentOS 7

Introduction

In this tutorial we learn how to install fetch-crl on CentOS 7.

What is fetch-crl

This tool and associated cron entry ensure that Certificate Revocation Lists (CRLs) are periodically retrieved from the web sites of the respective Certification Authorities. It assumes that the installed CA files follow the hash.crl_url convention.

We can use yum or dnf to install fetch-crl on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install fetch-crl.

Install fetch-crl on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install fetch-crl using yum by running the following command:

sudo yum -y install fetch-crl

Install fetch-crl on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install fetch-crl using dnf by running the following command:

sudo dnf -y install fetch-crl

How To Uninstall fetch-crl on CentOS 7

To uninstall only the fetch-crl package we can use the following command:

sudo dnf remove fetch-crl

References

• fetch-crl website

Summary

In this tutorial we learn how to install fetch-crl on CentOS 7 using yum and dnf.