Difference between revisions of "HOWTO login"
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Please note that your username and password are the same as for your email. | Please note that your username and password are the same as for your email. | ||
| − | === CAF HPC1 === | + | === HPC2 (also known as CAF-HPC1) === |
Use the following connection details to log in: | Use the following connection details to log in: | ||
| − | * '''Host Name''': | + | * '''Host Name''': hpc2.sun.ac.za |
* '''Port''': 22 (the default) | * '''Port''': 22 (the default) | ||
* '''Connection type''': SSH (the default) | * '''Connection type''': SSH (the default) | ||
| Line 19: | Line 19: | ||
Please note that your username and password are the same as for your email. | Please note that your username and password are the same as for your email. | ||
| − | You will only be able to connect to the HPC while on campus (wired only, '''no Wifi access'''), or if you have a VPN connection open to campus. | + | === VPN ACCESS OFF CAMPUS === |
| + | |||
| + | You will only be able to connect to the HPC while on campus (wired only, '''no Wifi access'''), or if you have a VPN connection open to campus. There are two VPN software options; the Citrix VPN client or PaloAlto GlobalProtect. | ||
| + | |||
| + | Citrix VPN. Download it from https://securevpn.sun.ac.za and run it before trying to ssh to the HPC. | ||
| + | |||
| + | GlobalProtect Read the HowTo on https://servicedesk.sun.ac.za/kb/display/ITHUB/Global+Protect+VPN | ||
| + | |||
| + | When on campus, do NOT use the VPN because you are connected to the real Stellenbosch network and do not need the Virtual adapter. | ||
== SSH clients == | == SSH clients == | ||
| Line 30: | Line 38: | ||
* job submission | * job submission | ||
| − | == Linux / | + | == Linux / macOS clients == |
Use the Terminal or Konsole to SSH to the cluster using the <code>ssh</code> command in the form: | Use the Terminal or Konsole to SSH to the cluster using the <code>ssh</code> command in the form: | ||
| Line 36: | Line 44: | ||
<code>$ ssh '''username'''@hpc1.sun.ac.za</code> | <code>$ ssh '''username'''@hpc1.sun.ac.za</code> | ||
| − | <code>$ ssh '''username'''@ | + | <code>$ ssh '''username'''@hpc2.sun.ac.za</code> |
To transfer files, use Konqueror (if you are using KDE) and the <code>fish</code> command in the form: | To transfer files, use Konqueror (if you are using KDE) and the <code>fish</code> command in the form: | ||
| Line 42: | Line 50: | ||
<code>fish://'''username'''@hpc1.sun.ac.za</code> | <code>fish://'''username'''@hpc1.sun.ac.za</code> | ||
| − | <code>fish://'''username'''@ | + | <code>fish://'''username'''@hpc2.sun.ac.za</code> |
If you are using Gnome, open Gnome Commander and create a new ''Remote Connection''. | If you are using Gnome, open Gnome Commander and create a new ''Remote Connection''. | ||
| Line 59: | Line 67: | ||
<code>$ ssh -X '''username'''@hpc1.sun.ac.za</code> | <code>$ ssh -X '''username'''@hpc1.sun.ac.za</code> | ||
| − | <code>$ ssh -X '''username'''@ | + | <code>$ ssh -X '''username'''@hpc2.sun.ac.za</code> |
== Windows clients == | == Windows clients == | ||
| Line 83: | Line 91: | ||
=== WinSCP === | === WinSCP === | ||
| − | Install from http://support.sun.ac.za/Utilities/WinScp | + | Install from https://winscp.net/eng/download.php (or [http://support.sun.ac.za/Utilities/WinScp local copy], only available on campus, possibly outdated). |
=== Xming === | === Xming === | ||
| Line 89: | Line 97: | ||
Install from http://sourceforge.net/projects/xming. | Install from http://sourceforge.net/projects/xming. | ||
| − | Xming allows graphical programs to run on the cluster, but display on your own Windows machine. For it to work correctly, '''X11 forwarding''' must be enabled in your SSH client. In TeraTerm Pro enable it in the ''Setup|SSH Forwarding...'' menu (remember to ''Setup|Save setup...'' and restart TeraTerm Pro). In PuTTY, enable it in the ''Connection|SSH|X11'' menu on the left when connecting to the server. | + | Xming allows graphical programs to run on the cluster, but display on your own Windows machine. For it to work correctly, '''X11 forwarding''' must be enabled in your SSH client. In TeraTerm Pro enable it in the ''Setup|SSH Forwarding...'' menu (remember to ''Setup|Save setup...'' and restart TeraTerm Pro). In PuTTY, enable it in the ''Connection|SSH|X11'' menu on the left when connecting to the server. You do not need this if you have MobaXterm. |
Once your SSH connection is open, check whether it works by seeing whether the <code>DISPLAY</code> variable is set: | Once your SSH connection is open, check whether it works by seeing whether the <code>DISPLAY</code> variable is set: | ||
<pre> | <pre> | ||
| − | [username@ | + | [username@hpc1 ~]$ export | grep DISPLAY |
declare -x DISPLAY="localhost:10.0" | declare -x DISPLAY="localhost:10.0" | ||
</pre> | </pre> | ||
| Line 99: | Line 107: | ||
Make sure Xming is running in the system tray, and then run a program in your SSH console which has a graphical frontend (like <code>xterm</code>): | Make sure Xming is running in the system tray, and then run a program in your SSH console which has a graphical frontend (like <code>xterm</code>): | ||
<pre> | <pre> | ||
| − | [username@ | + | [username@hpc1 ~]$ xterm |
</pre> | </pre> | ||
Latest revision as of 20:20, 30 January 2023
Contents
SSH connection details
HPC1 (also known as Rhasatsha)
Use the following connection details to log in:
- Host Name: hpc1.sun.ac.za
- Port: 22 (the default)
- Connection type: SSH (the default)
Please note that your username and password are the same as for your email.
HPC2 (also known as CAF-HPC1)
Use the following connection details to log in:
- Host Name: hpc2.sun.ac.za
- Port: 22 (the default)
- Connection type: SSH (the default)
Please note that your username and password are the same as for your email.
VPN ACCESS OFF CAMPUS
You will only be able to connect to the HPC while on campus (wired only, no Wifi access), or if you have a VPN connection open to campus. There are two VPN software options; the Citrix VPN client or PaloAlto GlobalProtect.
Citrix VPN. Download it from https://securevpn.sun.ac.za and run it before trying to ssh to the HPC.
GlobalProtect Read the HowTo on https://servicedesk.sun.ac.za/kb/display/ITHUB/Global+Protect+VPN
When on campus, do NOT use the VPN because you are connected to the real Stellenbosch network and do not need the Virtual adapter.
SSH clients
All interaction with the cluster is done securely with SSH.
Your interaction with the cluster will entail two major activities:
- file transfer
- job submission
Linux / macOS clients
Use the Terminal or Konsole to SSH to the cluster using the ssh command in the form:
$ ssh username@hpc1.sun.ac.za
$ ssh username@hpc2.sun.ac.za
To transfer files, use Konqueror (if you are using KDE) and the fish command in the form:
fish://username@hpc1.sun.ac.za
fish://username@hpc2.sun.ac.za
If you are using Gnome, open Gnome Commander and create a new Remote Connection.
You can also use the Terminal or Konsole to transfer files using the scp command.
To copy a file localfile from your machine to your home directory on the HPC, use scp localfile username@hpc1.sun.ac.za:~/.
To copy a file remotefile from the HPC to your local machine in the current directory, use scp username@hpc1.sun.ac.za:~/pathtofile/remotefile ..
To copy an entire directory localdir, use scp -r localdir username@hpc1.sun.ac.za:~/.
This list of commands is not exhaustive, see the scp man pages, or google it.
To enable X11 forwarding, use the -X parameter with SSH:
$ ssh -X username@hpc1.sun.ac.za
$ ssh -X username@hpc2.sun.ac.za
Windows clients
Files are transferred with the Secure Copy Protocol (SCP). MobaXterm and WinSCP make this really easy.
Jobs are submitted from the console (also called command line). MobaXterm, PuTTY and TeraTerm Pro are SSH clients which will allow console access.
MobaXterm
Install from http://mobaxterm.mobatek.net/ (or local copy, possibly outdated). A very nice client that combines SSH client, SCP client and X11 server. Install this or a combination of the programs below.
MobaXterm sometimes has issues with transferring large amounts of data. Use WinSCP instead if you run into trouble.
PuTTY
Install from http://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html (or local copy, only available on campus, possibly outdated).
TeraTerm Pro
Install from https://osdn.net/projects/ttssh2/releases (or local copy, only available on campus, possibly outdated).
WinSCP
Install from https://winscp.net/eng/download.php (or local copy, only available on campus, possibly outdated).
Xming
Install from http://sourceforge.net/projects/xming.
Xming allows graphical programs to run on the cluster, but display on your own Windows machine. For it to work correctly, X11 forwarding must be enabled in your SSH client. In TeraTerm Pro enable it in the Setup|SSH Forwarding... menu (remember to Setup|Save setup... and restart TeraTerm Pro). In PuTTY, enable it in the Connection|SSH|X11 menu on the left when connecting to the server. You do not need this if you have MobaXterm.
Once your SSH connection is open, check whether it works by seeing whether the DISPLAY variable is set:
[username@hpc1 ~]$ export | grep DISPLAY declare -x DISPLAY="localhost:10.0"
Make sure Xming is running in the system tray, and then run a program in your SSH console which has a graphical frontend (like xterm):
[username@hpc1 ~]$ xterm
A graphical xterm console should open on your Windows desktop.
Please note that you do not need to install this if you use MobaXterm.
