Crypto Key Generate Rsa Modulus 2048 Exportable Storage

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Crypto Key Generate Rsa Modulus 2048 Exportable Storage Average ratng: 7,0/10 3131 reviews

One needs to define domain-name before it's possible to generate SSH keys: sw1(config)#crypto key generate rsa% Please define a domain-name first. Sw1(config)#ip domain-name test.net sw1(config)#crypto key generate rsa The name for the keys will be: sw1.test.net Choose the size of the key modulus in the range of 360 to 2048 for your General Purpose Keys.

  1. Generate Rsa Key Command
  2. Crypto Key Generate Rsa Modulus 2048 Exportable Storage Wars
  1. One needs to define domain-name before it's possible to generate SSH keys: sw1(config)#crypto key generate rsa% Please define a domain-name first. Sw1(config)#ip domain-name test.net sw1(config)#crypto key generate rsa The name for the keys will be: sw1.test.net Choose the size of the key modulus in the range of 360 to 2048 for your General Purpose Keys.
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KB ID 0001322

Problem

I’ve lost count of the number of times this has happened to me! Most of my colleagues prefer to use the ASDM for remote management, but if (like me) you work at command line, then sometimes people <ahem> forget to generate the RSA keypair when deploying a firewall. Run the crack and generate activation key. Then even if SSH access and AAA is setup correctly, you still can’t get in via SSH. Instead you see the following;

Key

RoyalTS and RoyalTSX: ssh_exchange_identification: Connection closed by remote host.

PuTTY: PuTTY Fatal Error: Server unexpectedly closed network connection.

SecureCRT: Connection closed.

Generate Rsa Key Command

OSX/Linux: ssh_exchange_identification: Connection closed by remote host.

Now at command line you can fix this with a ‘Crypto Key Generate RSA Modulus 2048‘ command, but you can’t get to command line only ASDM.

Solution

On older versions of the ASDM you could generate the keypair in the Identification Certificates section (well you still can but only if you are also generating a certificate request file). So, as we are command line warriors, lets use the ASDM’s command line!

Tools > Command Line Interface > Multiple Line

Send > Wait a couple of minutes and try again.

REMEMBER: I’m assuming you have SSH setup correctly if not, see the following article;

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Crypto Key Generate Rsa Modulus 2048 Exportable Storage Wars

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