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In the previous video, we have done configuring
telnet in the router.

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Next in this video, we are going to configure
ssh in the router.

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Remember that ssh is more secure than telnet.

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So the best practice is, always use ssh in
the production.

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Never use telnet.

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Okay let’s just start.

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To configure ssh, we need to create a key.

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The command is crypto key generate rsa.

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Okay here we can see that before generate
a key, we need to change the default hostname first.

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Let’s change the hostname, let’s say Core-Router.

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Now Let’s try to generate a key again.

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Okay here we can see that we also need to
configure domain-name before generate a key.

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Let’s configure the domain-name, the command
is ip domain-name and then the domain,

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let’s say here I use agunacourse.com

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Now let’s try to generate a key again.

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Okay here we can see that we don’t have
an error anymore, so remember that before

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generating a key, we need to configure hostname
& domain-name first.

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Here, how many bits in the modulus?

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Let’s use 1024.

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Okay now we have done creating a key for ssh.

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Next we need to change the transport input
in the line vty.

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If you remember, earlier we configure the
transport input to telnet.

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If the transport input is telnet, so we can
not remote the router using ssh.

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So now let’s change it, go to line vty 0
2, and then transport input ssh.

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Now we have done configuring ssh in the router.

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Next let’s try to remote the router using
ssh.

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Let’s close it first.

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And then here let’s open telnet or ssh client
again.

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Choose ssh, and then put the router ip address,
and here we need to type the username,

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let’s say we will use user1.

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Connect, and here we need to type the password,
the password is password1.

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Okay here we can see that we have successfully
remote the router using ssh.

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I think enough for this video

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Thankyou for watching and see you on the next video.