![]() ![]() Move the mouse around to generate random numbers. Random numbers are used to generate the key. This uses mouse movement to ensure that completely You will be asked to move your mouse around in the blank area to Make sure to change the number of bits for the generated key to 4096. Once you have obtained PuTTYgen, start it, in the lower right there you will see a text box for Number of bits in generated key, change this to 4096. Installer, PuTTYgen will be located on the start menu under Start->All Programs->PuTTY->PuTTYgen. To generate a SSH key with PuTTY, you will need PuTTYgen, which canīe downloaded separately from the PuTTY download page, or can beĭownloaded as part of the PuTTY install package. Please see the SSH page for more information. PuTTY is a free, open-source SSH client for Windows and Unix that is under active development. Under Windows, CIM recommends using PuTTY for SSH. You will get output that looks something like this: You, you can start it manually simply by typing the command ssh-agent. If you are running a desktop that does not start an agent for You can also specify multiple keys on the command line. Shell: Adding your key to the ssh-agent specifying the file name If you used a nonstandard filename for your key, you can specify the name on the command line. Should already be a ssh-agent running in your session, and all you need In memory so you can log in with key-based authentication without The ssh-agent program included with OpenSSH can store your SSH key ![]() If you chose aĭifferent location, you can specify the file with the -i switch. The key and prompt you for the passphrase automatically. If you used the default location for your key, OpenSSH should find Shell: Outputting the public key in Commercial SSH format You for a file, enter the filename you specified when generating the In these cases, you can use the followingĬommand to output the key in the appropriate format, when it prompts In some cases, the CIM systems staff may need your ssh key inĬommercial SSH format. Shell: Outputting the public key in OpenSSH format Simplest way is probably to output the file, copy it and paste it into The contents of the ".pub" file is what you will need to send to theĬIM systems staff so they can grant your key access to resources. Public key will be $HOME/.ssh/id_rsa.pub. The file name you entered above, the public key will have the same The security of your generated key depends on it. When prompted for a file, the default of $HOME/.ssh/id_rsa should be fine. This will specify that you are generating a 4096īit key, which ensures that you have an extremely secure key. Generally, to generate a SSH key, you can just use a command line OpenSSH comes with a program called ssh-keygen for generating SSH Not have OpenSSH on your machine, you can use the installation on serveraddress. Of machines at CIM, and this howto is written for OpenSSH. This is the version that is installed on the vast majority ToĪccess these resources, you will need to generate a SSH key.Īlmost every modern version of Linux or UNIX has OpenSSH installedīy default. CIM uses SSH keys forĬontrolling access to certain resources, such certain clusters. SSH key-based authentication is more secure than passwordĪuthentication as keys tend to be considerably longer than passwordsĪnd therefore considerably harder to guess.
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