Q: I have a Cisco switch in my network, which I can access by hooking up a console cable directly to the device. I like to access the switch remotely using SSH. How can I enable ssh on my Cisco 3750 Catalyst Switch?
A: By default, when you configure a Cisco device, you have to use the console cable and connect directly to the system to access it. Follow the steps mentioned below, which will enable SSH access to your Cisco devices. Once you enable SSH, you can access it remotely using PuTTY or any other SSH client.

Using Crypto generated RSA keys on OpenSSL. I don't see any reason to use Crypto for common crypto applications like this. Use RSA private key to generate. May 27, 2010 H ow do I generate ssh RSA keys under Linux operating systems? You need to use the ssh-keygen command as follows to generate RSA keys (open terminal and type the following command).

1. Setup Management IP

First, make sure you have performed basic network configurations on your switch. For example, assign default gateway, assign management ip-address, etc. If this is already done, skip to the next step.

In the following example, the management ip address is set as 192.168.101.2 in the 101 VLAN. The default gateway points to the firewall, which is 192.168.101.1

May 24, 2015  What is this?MicrosoftCryptoRSAMachineKeys - posted in General Security: Hello all sorry for the wrong typing because English is not my first language. Sep 30, 2019 To generate RSA keys using the RSAGenerateKeys function, call it in the following sequence of steps: Establish the pseudorandom number generator and prime number generator. Define the RSA private key type 2 in successive calls to the RSAGetSizePrivateKeyType2 and RSAInitPrivateKeyType2 functions with desired values of factorPBitSize. Foghorn(config)#crypto key generate rsa The name for the keys will be: foghorn.thetechfirm.com Choose the size of the key modulus in the range of 360 to 2048 for your.

Aug 22, 2013 myswitch(config)# crypto key generate rsa The name for the keys will be: myswitch.thegeekstuff.com Choose the size of the key modulus in the range of 360 to 2048 for your General Purpose Keys. Choosing a key modulus greater than 512 may take a few minutes.

2. Set hostname and domain-name

Next, make sure the switch has a hostname and domain-name set properly.

3. Generate the RSA Keys

Crypto key generate rsa

The switch or router should have RSA keys that it will use during the SSH process. So, generate these using crypto command as shown below.

Also, if you are running on an older Cisco IOS image, it is highly recommended that you upgrade to latest Cisco IOS.

4. Setup the Line VTY configurations

Crypto Key Generate Rsa Cisco

Setup the following line vty configuration parameters, where input transport is set to SSH. Set the login to local, and password to 7.

If you have not set the console line yet, set it to the following values.

5. Create the username password

If you don’t have an username created already, do it as shown below.

Note: If you don’t have the enable password setup properly, do it now.

4500 Crypto Key Generate Rsa Modulus 1024

Make sure the password-encryption service is turned-on, which will encrypt the password, and when you do “sh run”, you’ll seee only the encrypted password and not clear-text password.

5. Verify SSH access

From the switch, if you do ‘sh ip ssh’, it will confirm that the SSH is enabled on this cisco device.

After the above configurations, login from a remote machine to verify that you can ssh to this cisco switch.

In this example, 192.168.101.2 is the management ip-address of the switch.

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4500 Crypto Key Generate Rsa

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Crypto Key Generate Rsa 1024

How do I generate ssh RSA keys under Linux operating systems?
You need to use the ssh-keygen command as follows to generate RSA keys (open terminal and type the following command):
ssh-keygen -t rsa
OR
ssh-keygen
Sample outputs:

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The -t type option specifies the type of key to create. The possible values “rsa” or “dsa” for protocol version 2. The $HOME/.ssh stores the following two files:

  • $HOME/.ssh/id_rsa – Your private RSA key
  • $HOME/.ssh/id_rsa.pub – Your public RSA key

Please do not share keys file with anyone else. You can upload keys to remote server as follows:
ssh-copy-id userName@server2.nixcraft.net.in
Finally, you can login to remote server as follows:
ssh userName@server2.nixcraft.net.in
scp file.txt userName@server2.nixcraft.net.in:~/data2/

See also:

Generate Rsa Key

  • Howto Linux / UNIX setup SSH with DSA public key authentication (password less login)
  • sshpass: Login To SSH Server / Provide SSH Password Using A Shell Script
  • keychain: Set Up Secure Passwordless SSH Access For Backup Scripts

4500 Crypto Key Generate Rsa Modulus 2048

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