How To Install icinga2-enable-feature on Ubuntu 21.04

In this guide, we’ll discuss How To Install icinga2-enable-feature on Ubuntu 21.04. Also, we will demonstrate how to uninstall and update icinga2-enable-feature.

One-liner install command

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

sudo apt-get update && sudo apt -y install icinga2-common

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

What is icinga2-enable-feature and what are the ways to install it?

Before beginning this tutorial, you will need access to a server or computer running Ubuntu 21.04. This guide was written specifically with a server running Ubuntu 21.04 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 icinga2-enable-feature on Ubuntu 21.04. 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 icinga2-enable-feature 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 icinga2-enable-feature using apt by running the following command:

sudo apt -y install icinga2-common

Install icinga2-enable-feature using apt

Because icinga2-enable-feature is available in Ubuntu 21.04’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 icinga2-enable-feature using apt by running the following command:

sudo apt -y install icinga2-common

Install icinga2-enable-feature 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 Ubuntu 21.04. Update apt database with aptitude using the following command.

sudo aptitude update

After updating aptitude database, You can install icinga2-enable-feature by running the following command:

sudo aptitude -y install icinga2-common

How to upgrade (update) a single package icinga2-enable-feature 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 icinga2-enable-feature, e.g. single package, you should use the following format with the apt-get command/apt command:

sudo apt-get --only-upgrade install icinga2-common

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.

How To Uninstall icinga2-enable-feature from Ubuntu 21.04

To uninstall only the icinga2-enable-feature package you can execute the following command:

sudo apt-get remove icinga2-common

Uninstall icinga2-enable-feature and all its dependencies

To uninstall icinga2-enable-feature and its dependencies that are no longer needed by Ubuntu 21.04, you can use the command below:

sudo apt-get -y autoremove icinga2-common

Remove icinga2-enable-feature with all configurations and data

To remove icinga2-enable-feature configuration and data from your system you can run the following purge command:

sudo apt-get -y purge icinga2-common

Remove icinga2-enable-feature completely (configurations, data and all of its dependencies)

And lastly, you can run the next command to remove absolutely everything related to icinga2-enable-feature package, e.g.: configurations, data and all of its dependencies. Just use this command:

sudo apt-get -y autoremove --purge icinga2-common

Extra info and code examples

Icinga 2 is a general-purpose monitoring application to fit the needs of any size of network. Icinga 1.x was a Nagios fork; this new generation has been rewritten from scratch in C++, with multi-threading and cluster support. Features: * all standard features of Icinga and Nagios; * much faster and more scalable than Icinga 1 and Nagios; * new, more intuitive, template-based configuration format; * monitoring services on ICMP (ping) or TCP ports (HTTP, NNTP, POP3, SMTP, etc.) by executing checks (see monitoring-plugins*); * any small script following the Nagios plugin API can be used as a check plugin; * notifications about alerts for any custom script (with examples); * native support for Livestatus and Graphite. This package provides configuration and some basic helper scripts.

Conclusion

You now have a full guide on how to install icinga2-enable-feature using apt, apt-get and aptitude tools. Also, we showed how to update as a single package and different ways to uninstall the icinga2-enable-feature from Ubuntu 21.04.

See also:

How To Install icinga2-enable-feature on Ubuntu 22.04

How To Install icinga2-enable-feature on Ubuntu 21.04

How To Install icinga2-enable-feature on Fedora 34

How To Install icinga2-enable-feature on CentOS 8

How To Install icinga2-enable-feature on Kali Linux

How To Install icinga2-enable-feature on Debian 11

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