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.

1. Crypto Key Generate Rsa Please Define A Domain Name First Episode
2. Crypto Key Generate Rsa Please Define A Domain Name First Day

Q&A for Work. /silent-hunter-5-cd-key-generator-free.html. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. RSA key is a private key based on RSA algorithm. Private Key is used for authentication and a symmetric key exchange during establishment of an SSL/TLS session. It is a part of the public key infrastructure that is generally used in case of SSL certificates. Dec 12, 2017 Re: crypto key generate rsa please define a hostname other than switch when you have added the domain name as Julio stated and you go to create the keys again the default will be 512, type 1024 and hit return so it only uses ssh v2 as v1 is unsecure and can be hacked and its advised to not use it anymore where possible. Oct 02, 2015 Router(config)# crypto key generate rsa general-keys The name for the keys will be: myrouter.example.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.

1. Setup Management IP

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. Once the hostname and IP domain name have been configured, the next step is to generate the RSA keys. The IOS supports exportable and non-exportable keys, and both key types can support RSA nonce authentication. However, it's a good idea to generate exportable keys. Home Cisco The Remote System Refused the Connection. So lets generate some SSH keys. Conf t crypto key generate rsa usage-keys modulus 2048% Please define a domain-name first. R1(config)# This will fail as we have not specified a DNS name.

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

2. Set hostname and domain-name

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

3. Generate the RSA Keys

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

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.

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

Crypto Key Generate Rsa Please Define A Domain Name First Episode

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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