Andrew Severin

Andrew Severin

Andrew manages the Genome Informatics Facility at Iowa State University. His academic background is in biochemistry with a Ph.D. in Biophysics/NMR spectroscopy. He is an interdisciplinary scientist working at the interface of Genetics and Bioinformatics, translating Big Data into informative data for interesting biological questions. He is passionate about evolution and the science behind the genome.

DataScience Workbook / 06. High-Performance Computing (HPC) / 2. Remote Access to HPC Resources / 2.2 Secure Shell Connection (SSH)

Introduction

What is ssh?

  • SSH is short for Secure SHell
ssh (SSH client) is a program for logging into a remote machine and for
     executing commands on a remote machine.  It is intended to provide secure
     encrypted communications between two untrusted hosts over an insecure
     network.  X11 connections, arbitrary TCP ports and UNIX-domain sockets
     can also be forwarded over the secure channel.

On a Mac (OS)

  1. Use the Finder and search for and open the Terminal program .
  2. Type ssh username@hostname
    • Example1: ssh andrew.severin@login.scinet.science
    • Example2: ssh severin@bridges.psc.edu
  3. Hit by ↵ (Enter) key and enter your password and verification code.
    • Note: as you type the password, you will not see your typing.

On a PC (Windows)

On Windows, it will be easier for you to login first to a linux based system for the rest of this tutorial (remote machine). You will first need to open up the command prompt which is similar to a terminal in the Mac OS operating system.

  1. Press windows key + r, type cmd and enter

  • Type ssh usename@hostname
    • Example1: ssh andrew.severin@login.scinet.science
    • Example2: ssh severin@bridges.psc.edu
    • Hit by ↵ (Enter) key and enter your password and verification code.
      • Note: as you type the password, you will not see your typing.
  1. Search for cmd using Window’s search.

Note: The window can be resized with the mouse and the font text can be increased by pressing cmd + or control + on Mac or Windows, respectively.

Further Reading

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