Logging on to pupil system - Revision history

Mick at 12:19, 5 January 2026

2026-01-05T12:19:28Z

← Older revision		Revision as of 14:19, 5 January 2026
Line 195:		Line 195:

	• Drag-and-drop files directly.		• Drag-and-drop files directly.

	~~<HR>~~

	~~<H3>ssh without typing passwords (ssh-copy-id)</H3>~~

	~~If you are tired of typing your password and the 2-factor authentication code, you can copy your ssh key to the server:~~

	~~<pre>~~
	~~ssh-copy-id [USER_ID]@[FULLHOSTNAME]~~
	~~</pre>~~

	~~This will look like a normal login and then exit.~~
	~~Afterwards, you can log in without entering DTU credentials.~~

	~~<b>Important:</b> This applies only to this server. You are responsible for keeping your computer secure.~~

	<HR>		<HR>

Mick at 12:14, 11 December 2025

2025-12-11T12:14:02Z

← Older revision		Revision as of 14:14, 11 December 2025
Line 37:		Line 37:
	\| 3 or alphanumerical		\| 3 or alphanumerical
	\|}		\|}


	~~<H4>User ID/username</H4>~~

	~~Your cloud <b>username</b> or '''user ID''' is the one entered in the '''username''' column (ex: s123456).~~

	<H4>Server (host)/CPU/RAM</H4>		<H4>Server (host)/CPU/RAM</H4>
Line 78:		Line 73:
	\| 126G		\| 126G
	\|}		\|}


	<H4>Password</H4>		<H4>Password</H4>

Mick at 12:12, 11 December 2025

2025-12-11T12:12:09Z

@@ Line 15: / Line 15: @@
 <H3>Student accounts</H3>
-<p>To be able to perform the exercises and project you will need an account to log in to the cloud computers. Open the
+<p>To be able to perform the exercises and project you will need an account to log in to the cloud computers.
-[https://docs.google.com/spreadsheets/d/1wdx1LjRXNiMDmUCy7GfYD5j-iDEX1q0UFSTEwxm-egA/edit?usp=sharing google doc], find your student ID and determine which server you need to use. This will be your server for the rest of the course — '''do not log into any other pupil server''' as this will disrupt other students' work.</p>
+Find your relevant node based on your student ID in the table below and determine which server you need to use. This will be your server for the rest of the course — '''do not log into any other pupil server''' as this will disrupt other students' work.</p>
 <H4>User ID/username</H4>

Mick at 14:31, 19 November 2025

2025-11-19T14:31:59Z

← Older revision		Revision as of 16:31, 19 November 2025
Line 27:		Line 27:

	{\| class="wikitable"		{\| class="wikitable"
	~~\| '''~~Server~~''' \| '''~~Full host name~~''' \| '''~~CPUs~~''' \| '''~~RAM~~'''~~		! Server
			! Full host name
			! CPUs
			! RAM
	\|-		\|-
	\| pupil1 \| pupil1.healthtech.dtu.dk \| 40 \| 252G		\| pupil1
			\| pupil1.healthtech.dtu.dk
			\| 40
			\| 252G
	\|-		\|-
	\| pupil2 \| pupil2.healthtech.dtu.dk \| 24 \| 110G		\| pupil2
			\| pupil2.healthtech.dtu.dk
			\| 24
			\| 110G
	\|-		\|-
	\| pupil3 \| pupil3.healthtech.dtu.dk \| 24 \| 94G		\| pupil3
			\| pupil3.healthtech.dtu.dk
			\| 24
			\| 94G
	\|-		\|-
	\| pupil4 \| pupil4.healthtech.dtu.dk \| 48 \| 126G		\| pupil4
			\| pupil4.healthtech.dtu.dk
			\| 48
			\| 126G
	\|-		\|-
	\| pupil5 \| pupil5.healthtech.dtu.dk \| 48 \| 126G		\| pupil5
			\| pupil5.healthtech.dtu.dk
			\| 48
			\| 126G
	\|}		\|}


	<H4>Password</H4>		<H4>Password</H4>
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	• When you type your password in the terminal, '''no characters will appear''' (not even dots). This is normal.		• When you type your password in the terminal, '''no characters will appear''' (not even dots). This is normal.

	• After login, you can test your session with:		• After login, you can test your session with:
	<pre>		<pre>
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	• Disk space is limited. Do not download large datasets unless instructed.		• Disk space is limited. Do not download large datasets unless instructed.

	• Check your disk usage with:		• Check your disk usage with:
	<pre>		<pre>
Line 157:		Line 178:
	<H4>Windows</H4>		<H4>Windows</H4>
	• In MobaXterm, use the built-in SFTP browser on the left side.		• In MobaXterm, use the built-in SFTP browser on the left side.

	• Drag-and-drop files directly.		• Drag-and-drop files directly.

Line 179:		Line 201:

	• Logging into the wrong pupil server.		• Logging into the wrong pupil server.

	• Using the wrong username.		• Using the wrong username.

	• Forgetting that passwords do not show characters.		• Forgetting that passwords do not show characters.

	• Running large jobs without checking load.		• Running large jobs without checking load.

	• Not deleting temporary files.		• Not deleting temporary files.

	• Not running XQuartz/Xming when using GUI tools.		• Not running XQuartz/Xming when using GUI tools.

Line 190:		Line 217:

	• Do not install software without asking a TA or the instructor.		• Do not install software without asking a TA or the instructor.

	• Do not share your account with anyone.		• Do not share your account with anyone.

	• Do not store personal files.		• Do not store personal files.

	• Do not run multi-hour jobs on login nodes (always ask before running heavy analyses).		• Do not run multi-hour jobs on login nodes (always ask before running heavy analyses).


	<HR>		<HR>

Mick at 14:28, 19 November 2025

2025-11-19T14:28:59Z

Show changes

Mick at 12:25, 14 November 2025

2025-11-14T12:25:40Z

← Older revision		Revision as of 14:25, 14 November 2025
Line 7:		Line 7:

	Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes.		Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes.

	~~<H2>Are you physically at DTU?</H2>~~

	First, make sure you are connected to the internet. If you are on campus, you do not need to do anything extra, however, if you are outside campus, you need a Virtual Private Network (VPN) which simulates that you are on campus. Please refer to https://www.inside.dtu.dk/en/medarbejder/it-og-telefoni/it-support-og-kontakt/it-systemer-og-vaerktoejer/it-systemer-ait/vpn

	<HR>		<HR>

Gabre at 10:35, 6 January 2025

2025-01-06T10:35:01Z

@@ Line 50: / Line 50: @@
 | 24
 | 94G
 |}

WikiSysop at 15:17, 19 March 2024

2024-03-19T15:17:39Z

← Older revision		Revision as of 17:17, 19 March 2024
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	<H2>Overview</H2>		<H2>Overview</H2>

	In this exercise, we will prepare our computers to log on to our servers called "pupilX", where X is 1/2/3. These are small but reliable machines. Please read the instructions carefully.		In this exercise, we will prepare our computers to log on to our servers called "pupilX", where X is 1/2/3/4/5. These are small but reliable machines. Please read the instructions carefully.

	Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes.		Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes.
Line 60:		Line 60:
	<H4>2 factor authentication</H4>		<H4>2 factor authentication</H4>

	You will be prompted for a 2-factor authentication code. This should be set up already - according to DTU IT (AIT). If you continue to fail at logging in, it might not be set up for you on Azure.<br>		You will be prompted for a 2-factor authentication code, using the same system as for logging in to your DTU mail. Look at your phone.
			<!--
			This should be set up already - according to DTU IT (AIT). If you continue to fail at logging in, it might not be set up for you on Azure.<br>
	To do the setup yourself, go to: [https://account.activedirectory.windowsazure.com/proofup.aspx?proofup=1 https://account.activedirectory.windowsazure.com/proofup.aspx?proofup=1]. Use your DTU username/password to enroll.		To do the setup yourself, go to: [https://account.activedirectory.windowsazure.com/proofup.aspx?proofup=1 https://account.activedirectory.windowsazure.com/proofup.aspx?proofup=1]. Use your DTU username/password to enroll.
			-->

	<H3>Windows computer</H3>		<H3>Windows computer</H3>

WikiSysop: Created page with "

Overview

In this exercise, we will prepare our computers to log on to our servers called "pupilX", where X is 1/2/3. These are small but reliable machines. Please read the instructions carefully. Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes.

Are you physically at DTU?

First, make sure you are connected to the internet. If you are on campus, you do not need to do anything extra, however,..."

2024-03-19T15:14:53Z

Created page with " <HR> <H2>Overview</H2> In this exercise, we will prepare our computers to log on to our servers called "pupilX", where X is 1/2/3. These are small but reliable machines. Please read the instructions carefully. Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes. <H2>Are you physically at DTU?</H2> First, make sure you are connected to the internet. If you are on campus, you do not need to do anything extra, however,..."

New page

<HR>

<H2>Overview</H2>

In this exercise, we will prepare our computers to log on to our servers called "pupilX", where X is 1/2/3. These are small but reliable machines. Please read the instructions carefully.

Please be aware: there is '''no''' backup. All of your data will be deleted when the class concludes.

<H2>Are you physically at DTU?</H2>

First, make sure you are connected to the internet. If you are on campus, you do not need to do anything extra, however, if you are outside campus, you need a Virtual Private Network (VPN) which simulates that you are on campus. Please refer to https://www.inside.dtu.dk/en/medarbejder/it-og-telefoni/it-support-og-kontakt/it-systemer-og-vaerktoejer/it-systemer-ait/vpn

<HR>

<H2>Details</H2>

<H3>Student accounts</H3>

<p>To be able to perform the exercises and project you will need an account to log in to the cloud computers. Open the
[https://docs.google.com/spreadsheets/d/1wdx1LjRXNiMDmUCy7GfYD5j-iDEX1q0UFSTEwxm-egA/edit?usp=sharinggoogle doc], find the student id and determine which server you need to use. This will be your server that you must use for the rest of the course.</p>

<H4>User ID/username</H4>

Your cloud <b>username</b> or '''user ID''' is one entered in the '''username''' column (ex: s123456).

<H4>Server (host)/CPU/RAM</H4>

The names/CPU/memory of the hosts:

{| class="wikitable"
| '''Server'''
| '''Full host name'''
| '''CPUs'''
| '''RAM'''
|-
| pupil1
| pupil1.healthtech.dtu.dk
| 40
| 252G
|-
| pupil2
| pupil2.healthtech.dtu.dk
| 24
| 110G
|-
| pupil3
| pupil3.healthtech.dtu.dk
| 24
| 94G
|}

<H4>Password</H4>

The password is the '''same''' as the DTU one. <b> Remember: If you lose your DTU password we can not help you! Check with DTU.</b>

<H4>2 factor authentication</H4>

You will be prompted for a 2-factor authentication code. This should be set up already - according to DTU IT (AIT). If you continue to fail at logging in, it might not be set up for you on Azure.<br>
To do the setup yourself, go to: [https://account.activedirectory.windowsazure.com/proofup.aspx?proofup=1 https://account.activedirectory.windowsazure.com/proofup.aspx?proofup=1]. Use your DTU username/password to enroll.

<H3>Windows computer</H3>

<H4>Terminal</H4>

You have 3 choices here:
# MobaXterm. Described [https://teaching.healthtech.dtu.dk/22113/index.php/Course_preparation#MobaXterm.2C_not_really_recommended here]. Install MobaXterm. Download [https://mobaxterm.mobatek.net/download.html here]<br>Once installed you must create an '''ssh session''' in Mobaxterm and log on to your cloud server (Look at the Google docs depending on user ID and use the IP above). Easy choice if you do not plan for more programming in the future.
# WSL2 + Ubuntu install. Described [https://teaching.healthtech.dtu.dk/22113/index.php/Course_preparation#WSL.2FWSL2.2C_Windows_Subsystem_for_Linux here]. Best choice if taking a course like 22113 later.
# PuTTY + Xming. A small terminal can be downloaded [https://www.putty.org/ here] and an X-server to be downloaded [https://sourceforge.net/projects/xming/ here].
The cookie-cutter solution is MobaXterm, which gives you the terminal and X-server functionality right out of the box.

<HR>

<H3>Mac computer</H3>

<H4>Terminal</H4>

Open your terminal. It is located in: /Applications/Utilities. Or search for "Terminal"

Depending on the server you will be using (see the google sheet), write:

ssh -XC [USER_ID]@[FULLHOSTNAME]
replace the [USER_ID] with the username you have been assigned to and [ID ADDRESS] is the IP of your server (see above).

Enter the password..
<p>Open the "XQuartz" and "Terminal" in the "Applications/Utilities" folder. You can close the window that the XQuartz program opens, but leave the program running in the background. If you dont have XQuartz installed you can install
it from [https://dl.bintray.com/xquartz/downloads/XQuartz-2.7.11.dmg here].
In the terminal write the command below and enter your password when asked for it. Depending on what you have installed you may have to install "Developer Tools" from Apple. You can also install the program "iTerm2" which is a very neat terminal.<br>
Log on to your cloud server using ssh and your cloud username (studXXX) and password (see above).

<HR>

<H3>Ubuntu/Linux</H3>

<H4>Terminal</H4>

Open your terminal and ssh using:
ssh -XC [USER_ID]@[FULLHOSTNAME]

<H3>ssh without any keys</H3>

Are you tired of typing your password and the 2-factor authentication code? If so you can automate the process using this on Ubuntu/Linux/MacOS:
ssh-copy-id [USERID]@[FULLHOSTNAME]
It will seem like a normal login, which logs you out again immediately. However, in the future, you do no need to supply DTU credentials.