How To Install spfd.libspf2 on Kali Linux

One-liner install command

For those in a hurry, here's a one-line installation command:

sudo apt-get update && sudo apt -y install spfquery

But if you are interested in the detailed steps with descriptions, the following information is for you.

What is spfd.libspf2 and what are the ways to install it?

Before beginning this tutorial, you will need access to a server or computer running Kali Linux. This guide was written specifically with a server running Kali Linux in mind, although it should also work on older, supported versions of the operating system.

Also, make sure you are running a regular, non-root user with sudo privileges configured on your server. When you have an account available, log in as your non-root user to begin.

There are several ways to install spfd.libspf2 on Kali Linux. You can use (links are clickable):

In the following sections, we will describe each method in detail. You can choose one of them or refer to the recommended one.

Install spfd.libspf2 using apt-get

First, update apt database with apt-get using the following command.

sudo apt-get update

After updating apt-get database, You can install spfd.libspf2 using apt by running the following command:

sudo apt -y install spfquery

Install spfd.libspf2 using apt

Because spfd.libspf2 is available in Kali Linux’s default repositories, it is possible to install it from these repositories using the apt packaging system.

To begin, update apt database with apt using the following command.

sudo apt update

After updating apt database, You can install spfd.libspf2 using apt by running the following command:

sudo apt -y install spfquery

Install spfd.libspf2 using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating aptitude database, You can install spfd.libspf2 by running the following command:

sudo aptitude -y install spfquery

How to upgrade (update) a single package spfd.libspf2 using apt-get?

First, you will need to update packages index. Run update command as usual:

sudo apt-get update

Next, to upgrade only the spfd.libspf2, e.g. single package, you should use the following format with the apt-get command/apt command:

sudo apt-get --only-upgrade install spfquery

Note that this command will not install any new packages! If you wish to install the package if it doesn't exist you may leave out --only-upgrade part.

sudo apt-get install spfquery

How To Uninstall spfd.libspf2 from Kali Linux

To uninstall only the spfd.libspf2 package you can execute the following command:

sudo apt-get remove spfquery

Uninstall spfd.libspf2 and all its dependencies

To uninstall spfd.libspf2 and its dependencies that are no longer needed by Kali Linux, you can use the command below:

sudo apt-get -y autoremove spfquery

Remove spfd.libspf2 with all configurations and data

To remove spfd.libspf2 configuration and data from your system you can run the following purge command:

sudo apt-get -y purge spfquery

Remove spfd.libspf2 completely (configurations, data and all of its dependencies)

And lastly, you can run the next command to remove absolutely everything related to spfd.libspf2 package, e.g.: configurations, data and all of its dependencies. Just use this command:

sudo apt-get -y autoremove --purge spfquery

Extra info and code examples

The Sender Policy Framework (SPF) is one part of the SPF/SRS protocol pair. SPF allows email systems such as Sendmail, Postfix, Exim, Zmailer and MS Exchange to check SPF records and make sure that the email is authorized by the domain name that it is coming from. This prevents email forgery, commonly used by spammers, scammers and email viruses/worms. This package contains simple utilities that use libspf2 to test and query SPF records.

Conclusion

You now have a full guide on how to install spfd.libspf2 using apt, apt-get and aptitude tools. Also, we showed how to update as a single package and different ways to uninstall the spfd.libspf2 from Kali Linux.

See also: