You are here

Quick Start Guide

Last Update: January 5, 2022.

How to login to RCCS frontend

Please register you SSH prublic key according to the information on "How to set your password and put your public key" page.
After that, login to frontend server "" using your user ID (three-letter ID) and registered key.

If you don't have SSH key, instructions below might be helpful to you.

SSH Key Generation @Windows

(Login instruction also available.)

SSH Key Generation @OpenSSH env ( (mac), Linux, Windows 10 PowerShell)

You can generate key by ssh-keygen command. Ed25519, ECDSA-521, ECDSA-384, ECDSA-256, RSA 4096 bits can be used.
If you have no preference, we recommend Ed25519 key. Options for ssh-keygen command are summarized below.

  • Ed25519: -t ed25519
  • ECDSA-521/384/256: -t ecdsa -b 521/384/256 (for ECDSA-521, try -t ecdsa -b 521)
  • RSA 4096 bits: -t rsa -b 4096

Ed25519 key generation sample is available in this page.

File Transfer via SCP/SFTP

Before trying to transfer files, you should finish the SSH key generation and registration described above.
If you have trouble with keys created with PuTTY 0.75 or later ("PuTTY key format too new" error), please update the SCp/SFTP software first. In case update of the software didn't fix the problem, please see this page.
(June 29, 2021) WinSCP 5.19 (or later) can use new PuTTY key format (PPK version 3).
(Jan 5, 2022) FileZilla 3.57.0 can use PPK version 3. (3.54.1 couldn't use it)


Windows, mac, Linux

Others (OpenSSH)

scp/sftp commands can be used in, Windows 10 PowerShell, Linux terminals. "sshfs" is also available.
VScode "SSH FS" extension can access to RCCS, while "Remote - SSH" can't (verified on Mar 3, 2022).

Job Submission Guides