How To Install libapache2-mod-watchcat on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libapache2-mod-watchcat on Ubuntu 18.04.
What is libapache2-mod-watchcat
libapache2-mod-watchcat is:
A bug or malicious attacks to machine can lock up a process, leading to a deadlock or an unexpected condition. For example: an Apache httpd with mod_(php|perl|lua|your_preferred_script_language) running a bad script. When the monitored process locks up, the watchcat helps killing him. It is the best thing to do.
There are three methods to install libapache2-mod-watchcat on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libapache2-mod-watchcat Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libapache2-mod-watchcat using apt-get by running the following command:
sudo apt-get -y install libapache2-mod-watchcat
Install libapache2-mod-watchcat Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libapache2-mod-watchcat using apt by running the following command:
sudo apt -y install libapache2-mod-watchcat
Install libapache2-mod-watchcat 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. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libapache2-mod-watchcat using aptitude by running the following command:
sudo aptitude -y install libapache2-mod-watchcat
How To Uninstall libapache2-mod-watchcat on Ubuntu 18.04
To uninstall only the libapache2-mod-watchcat package we can use the following command:
sudo apt-get remove libapache2-mod-watchcat
Uninstall libapache2-mod-watchcat And Its Dependencies
To uninstall libapache2-mod-watchcat and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libapache2-mod-watchcat
Remove libapache2-mod-watchcat Configurations and Data
To remove libapache2-mod-watchcat configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libapache2-mod-watchcat
Remove libapache2-mod-watchcat configuration, data, and all of its dependencies
We can use the following command to remove libapache2-mod-watchcat configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libapache2-mod-watchcat
References
Summary
In this tutorial we learn how to install libapache2-mod-watchcat package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
