How To Install lshd on Ubuntu 21.04

One-liner install command

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

sudo apt-get update && sudo apt -y install lsh-server

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

What is lshd 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 lshd 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 lshd 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 lshd using apt by running the following command:

sudo apt -y install lsh-server

Install lshd using apt

Because lshd 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 lshd using apt by running the following command:

sudo apt -y install lsh-server

Install lshd 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 lshd by running the following command:

sudo aptitude -y install lsh-server

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

sudo apt-get --only-upgrade install lsh-server

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 lsh-server

How To Uninstall lshd from Ubuntu 21.04

To uninstall only the lshd package you can execute the following command:

sudo apt-get remove lsh-server

Uninstall lshd and all its dependencies

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

sudo apt-get -y autoremove lsh-server

Remove lshd with all configurations and data

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

sudo apt-get -y purge lsh-server

Remove lshd completely (configurations, data and all of its dependencies)

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

sudo apt-get -y autoremove --purge lsh-server

Extra info and code examples

lsh is a GPLed implementation of the Secure SHell protocol version 2 (SSH2), a secure replacement for rlogin, rsh, and rcp. This package contains the lsh server, lshd. This package is required to allow SSH2 logins to the local machine. In some countries it may be illegal to use any encryption at all without a special permit.

Conclusion

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

See also: