# SSH Key erstellen

The algorithm is selected using the -t option and key size using the -b option. The following commands illustrate:

```
ssh-keygen -t rsa -b 4096
ssh-keygen -t dsa
ssh-keygen -t ecdsa -b 521
ssh-keygen -t ed25519
```

To upload a public key to a server use the following command:

```
ssh-copy-id -i ~/.ssh/id_rsa.pub YOUR_USER_NAME@IP_ADDRESS_OF_THE_SERVER
```