How To Install acme-tiny on CentOS 8

acme-tiny is Tiny auditable script to issue, renew Let’s Encrypt certificates

Introduction

In this tutorial we learn how to install acme-tiny on CentOS 8.

What is acme-tiny

This is a tiny, auditable script that you can throw on your server to issue and renew Let’s Encrypt certificates. Since it has to be run on your server and have access to your private Let’s Encrypt account key, I tried to make it as tiny as possible (currently less than 200 lines). The only prerequisites are python and openssl. Well, that and a web server - but then you only need this with a web server. This package adds a simple directory layout and timer service that runs acme_tiny on installed CSRs as the acme user for privilege separation.

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

Install acme-tiny 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 acme-tiny using dnf by running the following command:

sudo dnf -y install acme-tiny

Install acme-tiny 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 acme-tiny using yum by running the following command:

sudo yum -y install acme-tiny

How To Uninstall acme-tiny on CentOS 8

To uninstall only the acme-tiny package we can use the following command:

sudo dnf remove acme-tiny

acme-tiny Package Contents on CentOS 8

/etc/acme-tiny
/etc/acme-tiny/notify.d
/etc/acme-tiny/notify.sh
/etc/httpd/conf.d/acme.conf
/usr/lib/systemd/system/acme-tiny.service
/usr/lib/systemd/system/acme-tiny.timer
/usr/libexec/acme-tiny
/usr/libexec/acme-tiny/sign
/usr/sbin/acme-tiny
/usr/sbin/acme-tiny-sign
/usr/sbin/cert-check
/usr/share/doc/acme-tiny
/usr/share/doc/acme-tiny/README-fedora.md
/usr/share/licenses/acme-tiny
/usr/share/licenses/acme-tiny/LICENSE
/var/lib/acme
/var/lib/acme/certs
/var/lib/acme/csr
/var/lib/acme/lets-encrypt-x3-cross-signed.pem
/var/lib/acme/private
/var/www/challenges

References

Summary

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