What Is SSH (Secure Shell) & How Does It Work

It is because that the protocol will create a secure connection to the shell on another computer.

This SSH protocol was built for replacing the unencrypted Telnet.

Read here, it’s possible for you to know the SSH meaning clearly.

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Besides, any web link service can be protected with SSH.

The SSH secure shell enables 2 computers build a safe connection within a potentially unsafe web connection.

In this way, third-parties are unable to reach the data stream (that can cause data leak).

SO, the data streams will not be read or operated by others.

In addition to the encrypted connection, SSH can double-check that the connection is established between the designated computers.

If so, only authorized participants can contact each other.

As a web connection protocol, SSH can be used in a wide range.

For instance, anyLinuxor MacOS user can enter his remote server directly from the terminal window via SSH.

For Windows users, they can take advantage of SSH clients like Putty.

In a word, SSH can run on all operating systems.

Besides, SSH has other applications as listed in the following.

The first step is to make the SSH client and server authenticate themselves to one another.

When the client knows the correct certificate, no third-parties can make contacts to the relevant server.

After that, the client will identify itself too.

Here, it’s possible for you to set a password to identify the client.

Then, the two communication participants will build an encrypted connection.

Besides, the key utilized for symmetric encryption is only valid with this one session.

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When talking about OpenSSH, it is inevitable to discuss of the development of SSH.

SSH secure shell was developed in 1995 and used as an open source project.

In the same year, the developer of secure shell found a firm who developed the protocol further.

Given to that fact, the initially opened project got more and more into a proprietary software.

However, this action was against by the connection community.

And the community developed an open split on the basis of SSH-1 protocol OpenSSH.

On the aspects of functionality and scope, the two protocols are rather similar.

The main difference is the cost and the support.

So, you’re able to choose one based on your demand.

Now, you may have an overall understanding of it.