How To Install sqlgrey on CentOS 7
Introduction
In this tutorial we learn how to install sqlgrey
on CentOS 7.
What is sqlgrey
SQLgrey is a Postfix grey-listing policy service with auto-white-listing written in Perl with SQL database as storage backend. Greylisting stops 50 to 90% of junk mails (spam and virus) before they reach your Postfix server (saves BW, user time and CPU time).
We can use yum
or dnf
to install sqlgrey
on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install sqlgrey.
Install sqlgrey on CentOS 7 Using yum
Update yum database with yum
using the following command.
After updating yum database, We can install sqlgrey
using yum
by running the following command:
Install sqlgrey 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.
After updating yum database, We can install sqlgrey
using dnf
by running the following command:
How To Uninstall sqlgrey on CentOS 7
To uninstall only the sqlgrey
package we can use the following command:
References
Summary
In this tutorial we learn how to install sqlgrey
on CentOS 7 using yum
and dnf
.