How To Install ocspd on CentOS 8

ocspd is OpenCA OCSP Daemon

Introduction

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

What is ocspd

The ocspd is an RFC2560 compliant OCSPD responder. It can be used to verify the status of a certificate using OCSP clients (such as Mozilla/Firefox/Thunderbird/Apache).

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

Install ocspd 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 ocspd using dnf by running the following command:

sudo dnf -y install ocspd

Install ocspd 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 ocspd using yum by running the following command:

sudo yum -y install ocspd

How To Uninstall ocspd on CentOS 8

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

sudo dnf remove ocspd

ocspd Package Contents on CentOS 8

/etc/ocspd
/etc/ocspd/certs
/etc/ocspd/crls
/etc/ocspd/ocspd.conf
/etc/ocspd/private
/etc/sysconfig/ocspd
/usr/lib/.build-id
/usr/lib/.build-id/6f
/usr/lib/.build-id/6f/67e3f200a6f0ff981132cd75be331cb6e1734b
/usr/lib/systemd/system/ocspd.service
/usr/sbin/ocspd
/usr/share/doc/ocspd
/usr/share/doc/ocspd/AUTHORS
/usr/share/doc/ocspd/COPYING
/usr/share/doc/ocspd/ChangeLog
/usr/share/doc/ocspd/README
/usr/share/man/man3/ocspd.3.gz
/usr/share/man/man3/ocspd.conf.3.gz

References

Summary

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