---
title: 'Logging in with SSH'
taxonomy:
category:
- docs
external_links:
process: true
no_follow: true
target: _blank
mode: active
---
[toc]
## Prerequisites{#before}
Generate a public/private key pair by following [Generating Key Pair and Registering Public Key](/login/pubkey), and register the public key via [the User Portal](https://web.kudpc.kyoto-u.ac.jp/portal/).
## How to Log In{#procedure}
1. Start 'Command Prompt' for Windows or 'Terminal' for Mac.<br>
On Windows, you can also log in using [MobaXterm](/login/mobaxterm). MobaXterm is a handy toolbox for x11 servers, SSH clients, file transfers, etc.
2. Connect to the login node using the ssh command.
```nohighlight
$ ssh username@hostname
```
3. If a prompt of the form [username@hostname ~] is displayed, the login is successful.
### Connection Destination{#access}
The host names for each system are as follows.
| System Name | Host Name | Note |
| --- | --- | --- |
| System A | camphor.kudpc.kyoto-u.ac.jp | Consists of two login nodes. |
| System B/Cloud | laurel.kudpc.kyoto-u.ac.jp | Consists of three login nodes. |
| System C | cinnamon.kudpc.kyoto-u.ac.jp | Consists of three login nodes. |
| System G | gardenia.kudpc.kyoto-u.ac.jp | Consists of two login nodes. |
<!--
| A | camphor.kudpc.kyoto-u.ac.jp | Load-balanced with two login nodes. Only users of System A can log in. |
| B | laurel.kudpc.kyoto-u.ac.jp | Load-balanced with three login nodes. |
| C | cinnamon.kudpc.kyoto-u.ac.jp | Connect to the laurel login node with the Cinnamon environment loaded. |
| G | gardenia.kudpc.kyoto-u.ac.jp | Load-balanced with four login nodes. |
-->
### Example{#example}
* Log in to the System A with the user ID b59999.
```nohighlight
$ ssh b59999@camphor.kudpc.kyoto-u.ac.jp
Enter passphrase for key 'id_rsa':
```
* Specify the private key and log in to the System B with the user ID b59999.
```nohighlight
$ ssh -i ~/.ssh/id_rsa_kudpc b59999@laurel.kudpc.kyoto-u.ac.jp
Enter passphrase for key 'id_rsa':
```