67 lines
1.8 KiB
Markdown
67 lines
1.8 KiB
Markdown
Generating an SSH keypair in Linux on CloudFerro Cloud[🔗](#generating-an-ssh-keypair-in-linux-on-brand-name "Permalink to this headline")
|
|
=========================================================================================================================================
|
|
|
|
In order to generate an SSH keypair in Linux, we recommend using the command **ssh-keygen**.
|
|
|
|
If system does not see this packet installed, install the latest updates:
|
|
|
|
Ubuntu and Debian family
|
|
: ```
|
|
sudo apt-get update && apt-get install openssh-client
|
|
|
|
```
|
|
|
|
CentOS and Red Hat
|
|
: ```
|
|
sudo yum install openssh-clients
|
|
|
|
```
|
|
|
|
After that, use the following command in terminal:
|
|
|
|
```
|
|
ssh-keygen
|
|
|
|
```
|
|
|
|
with additional flags:
|
|
|
|
`-t`
|
|
: rsa authentication key type
|
|
|
|
`-b`
|
|
: 4096 bit length, 2048 if not specified. Available values: 1024, 2048, 4096.
|
|
The greater the value, the more complicated the key will be.
|
|
|
|
`-C`
|
|
: *user@server* name for identification at the end of the file
|
|
|
|
`-f`
|
|
: ~/.ssh/keys/keylocation location of folder with ssh keys
|
|
|
|
`-N`
|
|
: passphrase, can be omitted if user prefers connecting without additional key security
|
|
|
|
|
|
|
|
Application will ask for the name of the key. Press **Enter** for defaults:
|
|
|
|
> * **id\_rsa** for private and
|
|
> * **id\_rsa.pub** for public key and passphrase (pressing **Enter** ignores it).
|
|
|
|
|
|
|
|
Next, **ssh-keygen** will show
|
|
|
|
> * location, where the keys are saved,
|
|
> * fingerprint of keypair and certain
|
|
> * semi-graphic image as expression of randomness in generating unique key.
|
|
|
|
|
|
|
|
To avoid problem with rejecting files due to too open permissions, navigate to the folder containing both keys and enter command:
|
|
|
|
```
|
|
chmod 600 id_rsa && chmod 600 id_rsa.pub
|
|
|
|
``` |