How To Install voms on CentOS 8
Introduction
In this tutorial we learn how to install voms on CentOS 8.
What is voms
The Virtual Organization Membership Service (VOMS) is an attribute authority which serves as central repository for VO user authorization information, providing support for sorting users into group hierarchies, keeping track of their roles and other attributes in order to issue trusted attribute certificates and SAML assertions used in the Grid environment for authorization purposes. This package provides libraries that applications using the VOMS functionality will bind to.
We can use yum or dnf to install voms on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install voms.
Install voms 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 voms using dnf by running the following command:
sudo dnf -y install voms
Install voms 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 voms using yum by running the following command:
sudo yum -y install voms
How To Uninstall voms on CentOS 8
To uninstall only the voms package we can use the following command:
sudo dnf remove voms
voms Package Contents on CentOS 8
/etc/grid-security
/etc/grid-security/vomsdir
/usr/lib/.build-id
/usr/lib/.build-id/89
/usr/lib/.build-id/89/825e11ccfe7d70dcdbd0e7a6633d852957d05a
/usr/lib64/libvomsapi.so.1
/usr/lib64/libvomsapi.so.1.0.0
/usr/share/doc/voms
/usr/share/doc/voms/AUTHORS
/usr/share/doc/voms/README.md
/usr/share/licenses/voms
/usr/share/licenses/voms/LICENSE
/usr/share/voms
/usr/share/voms/vomses.template
References
Summary
In this tutorial we learn how to install voms on CentOS 8 using yum and dnf.