How To Install memlockd on Debian 11
Introduction
In this tutorial we learn how to install memlockd on Debian 11.
What is memlockd
memlockd is:
When a system starts paging excessively it may be impossible for the sysadmin to login for the purpose of killing the runaway processes (sometimes the login program times out due to thrashing). Memlockd allows important system files (such as /bin/login, /bin/getty, and the admin shell) to be locked in memory so that there will be no delay in accessing executable pages. In my tests this can decrease the time required for the administrator to login on a thrashing system by a factor of more than 3.
There are three methods to install memlockd on Debian 11. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install memlockd Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install memlockd using apt-get by running the following command:
sudo apt-get -y install memlockd
Install memlockd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install memlockd using apt by running the following command:
sudo apt -y install memlockd
Install memlockd 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install memlockd using aptitude by running the following command:
sudo aptitude -y install memlockd
How To Uninstall memlockd on Debian 11
To uninstall only the memlockd package we can use the following command:
sudo apt-get remove memlockd
Uninstall memlockd And Its Dependencies
To uninstall memlockd and its dependencies that are no longer needed by Debian 11, we can use the command below:
sudo apt-get -y autoremove memlockd
Remove memlockd Configurations and Data
To remove memlockd configuration and data from Debian 11 we can use the following command:
sudo apt-get -y purge memlockd
Remove memlockd configuration, data, and all of its dependencies
We can use the following command to remove memlockd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge memlockd
Dependencies
memlockd have the following dependencies:
References
Summary
In this tutorial we learn how to install memlockd package on Debian 11 using different package management tools: apt, apt-get and aptitude.