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The remote ssh server allows by default logging in via username/passeword.<br />
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To disallow this it must be explicitly turned off in sshd_config.
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The remote ssh server allows by default logging in via username/passeword.

To disallow this it must be explicitly turned off in sshd_config.

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But, scuse my ignorance, but without a public key what make the connection remotely secure? It'll just be plain text won't it
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But, scuse my ignorance, but without a public key what make the connection remotely secure? It'll just be plain text won't it

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Ah, the penny drops, its public/private key but the server issues the public key like a private 'Verisign' which I trust because I'm connecting explicitly to that server IP.
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Ah, the penny drops, its public/private key but the server issues the public key like a private 'Verisign' which I trust because I'm connecting explicitly to that server IP.

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I'm I real SSH newbie (even though i've been using it for years), but I can't work this out, I set up Putty years ago to access a remote Ubuntu box from Windows. <br />
I do vaguely remember setting up the keys, but....anyway, I got a new laptop, downloaded the putty.exe file, fired it up with the target remote IP, and I got in (well, usual uname/pwd challenge). How can that be without without the public key? I'm sure I didn't copy any key files over.
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I'm I real SSH newbie (even though i've been using it for years), but I can't work this out, I set up Putty years ago to access a remote Ubuntu box from Windows. 
I do vaguely remember setting up the keys, but....anyway, I got a new laptop, downloaded the putty.exe file, fired it up with the target remote IP, and I got in (well, usual uname/pwd challenge). How can that be without without the public key? I'm sure I didn't copy any key files over.

SSH Query-why does it work?

Telnet is an application layer protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. SSH was designed as a replacement for Telnet and for unsecured remote shell protocols. The term telnet is also used to refer to the software that implements the client part of the protocol. SSH provides a secure channel over an unsecured network in a client-server architecture, connecting an SSH client application with an SSH server.