How To Install portreserve on CentOS 8

portreserve is TCP port reservation utility

Introduction

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

What is portreserve

The portreserve program aims to help services with well-known ports that lie in the portmap range. It prevents portmap from a real service’s port by occupying it itself, until the real service tells it to release the port (generally in the init script).

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

Install portreserve 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 portreserve using dnf by running the following command:

sudo dnf -y install portreserve

Install portreserve 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 portreserve using yum by running the following command:

sudo yum -y install portreserve

How To Uninstall portreserve on CentOS 8

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

sudo dnf remove portreserve

portreserve Package Contents on CentOS 8

/etc/portreserve
/sbin/portrelease
/sbin/portreserve
/usr/lib/.build-id
/usr/lib/.build-id/ca
/usr/lib/.build-id/ca/5be3286401b8c738f685928094f1c3aa46d36f
/usr/lib/systemd/system/portreserve.service
/usr/lib/tmpfiles.d/portreserve.conf
/usr/share/doc/portreserve
/usr/share/doc/portreserve/COPYING
/usr/share/doc/portreserve/ChangeLog
/usr/share/doc/portreserve/NEWS
/usr/share/doc/portreserve/README
/usr/share/man/man1/portrelease.1.gz
/usr/share/man/man1/portreserve.1.gz
/var/run/portreserve

References

Summary

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