Eduroam unter Linux/en: Unterschied zwischen den Versionen

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|translated title=eduroam on Linux
 
|translated title=eduroam on Linux
 
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This tutorial describes how to set up the Wi-Fi eduroam on Linux. In this example a Ubuntu 14.04 LTS system with Gnome Desktop is used. Other distributions may look different.  
+
<!--
 +
<bootstrap_alert color=warning>
 +
The Radius Server certificate was changed on February 15, 2024. You do '''not''' need to install a new user certificate! Most devices should still connect to eduroam automatically. If your device asks whether you want to trust the new certificate, you should check the certificate's fingerprint. If the certificate is not present on your device, you can download it here:
 +
* http://download.uni-paderborn.de/pc/certificates/
 +
<br>
 +
<pre>SHA1 Fingerprint=F0:CB:92:A7:B6:2E:21:00:97:C7:00:88:F2:6D:CD:EB:D6:D6:D6:E5</pre>
 +
<pre>SHA256 Fingerprint=40:96:14:4C:DA:39:8E:A5:15:85:5D:32:4A:04:E0:5C:E4:E1:9E:1E:EB:BA: DD:27:A0:30:8C:E4:20:52:48:48</pre>
 +
<pre>SHA512 Fingerprint=00:B8:D3:4A:60:0A:7C:2A:AC:84:11:92:90:DA:C5:14:F7:05:79:86:23:4E: D2:44:F7:0D:D7:6A:FF:CA:26:A2:8E:AD:87:7F:79:5D:64:5E:24:8C:19:41:E0:0F:16: 1F:97:AE:6E:93:61:E4:F1:93:3C:47:47:75:53:7C:F5:25</pre>
 +
</bootstrap_alert>
 +
-->
 +
 
 +
These instructions for setting up the eduroam WLAN at the University of Paderborn apply to devices with Linux via the user interface (GUI). As an example, the network is set up here under Ubuntu 14.04 LTS with Gnome Desktop. Depending on the Linux version, the settings may vary slightly. Please note that the Notebook Café does not offer immediate Linux support.
  
== What needs to be done? ==
+
== What to do? ==
* Create and download a user certificate.
+
* Create your personal university network certificate  
* Download the '''telesec certificate'''.
+
** <optional> Download the root certificate. This is a standard root certificate, so it should already exist.
* Configure the eduroam network.
+
* Set up the eduroam network.
* Delete the webauth network if used.
+
* Delete any existing webauth profile so that the device automatically connects to eduroam.
 +
* '''Special case:''' Depending on the Linux version, ''uni-paderborn.de'' must be entered under '''Domain/domain'''.
  
 
== Step-by-step instructions ==
 
== Step-by-step instructions ==
===Download certificates ===
+
===Provide certificates ===
* Visit the [http://sp.upb.de ServicePortal] with your Browser.
+
Access using a browser such as B. Firefox or Internet Explorer, open the [http://sp.upb.de service portal], log in with your user name and password and apply for a new certificate under "WLAN". Enter the name of the device on which the certificate is to be installed. <br/>
* Log in with your university account.
+
A password will then be automatically generated for the certificate and displayed on the following page. It is best if the password is copied for further installation.
* Visit  '''Benutzerverwaltung''' and click on '''Netzwerk Einstellungen'''.
+
 
* Click on '''Neues Zertifikat erstellen'''.
+
[[Datei:Eduroam-unter-android-4.png|left|mini|without|350px]]
* Give the certificate an identifier like "Laptop".
 
* Click on '''Neues Zertifikat zusenden'''
 
 
<br>
 
<br>
 +
* Click '''"Neues Zertifikat erstellen"'''.
 +
<br clear=all>
  
[[Datei:Netzwerkzertifikat passwort generierung.PNG|links|mini|ohne|350px]]
+
[[Datei:Netzwerkzertifikat-container-v2.png|links|mini|without|350px]]
 
<br>
 
<br>
* Copy the import password.
+
* Give the certificate a unique name (Ex: Laptop xy)
* Click on '''Netzwerkzertifikat herunterladen'''.
+
* Select '''Version 2''' as the file format.
* Click on '''CA-Zertifikat herunterladen'''.
+
* Then click on '''"Neues Zertifikat zusenden"'''.
 
<br clear=all>
 
<br clear=all>
  
* Save the certificates on your computer. Choose your folder wisely. Don't move or delete the certificates afterwards.
+
[[Datei:Netzwerkzertifikat-download.png|links|mini|without|350px]]
* Open the certificates and import them.
+
<br>
 +
* A new network certificate has been created for you.
 +
* First copy the '''Import Password''' to the clipboard.
 +
* Now click on '''"Netzwerkzertifikat herunterladen"'''.
 +
* Then click '''"CA-Zertifikat herunterladen"'''.
 +
<br clear=all>
  
===Configure eduroam ===
+
Save both certificates e.g. B. in your user folder or another safe location. Do not delete/move this folder!
[[Datei:Eduroam unter Linux_01.png|links|mini|ohne|350px]]
+
 
<br>
+
===Set up Eduroam===
* Open your '''Networkmanager''' or your prefered tool to configure your Wi-Fi connections:
+
[[Datei:Eduroam unter Linux_01.png|left|mini|without|350px|status menu]]
 +
<br clear=all>
 +
* Open the status menu.
 +
* Select '''"WLAN-Netzwerke auswählen"'''.
 +
<br clear=all>
 +
 
 +
[[Datei:Eduroam unter Linux_02.png|left|mini|without|350px|WLAN settings]]
 +
<br clear=all>
 +
* Choose eduroam.
 
<br clear=all>
 
<br clear=all>
  
[[Datei:Eduroam unter Linux_02.png|links|mini|ohne|350px]]
+
Set up eduroam as follows:
<br>
+
[[Datei:Eduroam unter Linux_03.png|links|mini|without|350px|eduroam setup]]
* Create a new connection:
+
<br clear=all>
 +
* '''Security:''' WPA & WPA2 Enterprise
 +
* '''Legitimation:''' TLS
 +
* '''Identity:''' <username>@uni-paderborn.de (replace <username> with your university account
 +
* '''Domain (if available):''' radius.uni-paderborn.de
 +
* '''CA Certificate:''' Select the '''USERTrust RSA Certification Authority'' certificate (''USERTrustRSACertificationAuthority.crt'').
 +
* '''Password CA certificate:''' Remains blank.
 +
* '''User certificate:''' Select your personal network certificate (the file that ends in .p12 and contains your university account username).
 +
* '''User certificate password:''' Remains blank.
 +
* '''Secret user key:''' Is usually automatically filled with "User certificate" - otherwise insert it yourself
 +
* '''User key password:''' Import password for your personal network certificate.
 
<br clear=all>
 
<br clear=all>
  
Choose the following settings:
+
* ''<variable> domain:''
[[Datei:Eduroam unter Linux_03.png|links|mini|ohne|350px]]
+
*# ''uni-paderborn.de (Some Linux versions require this entry)''
 +
*# ''radius.uni-paderborn.de (or this one)''
 +
*# ''<leave blank> (or something like that, if it shows at all)''
 +
 
 +
==Troubleshooting==
 +
===Add manually===
 +
You may also be able to add the eduroam network manually:
 +
* '''Connection name:''' Can be freely selected
 +
* '''SSID:''' eduroam
 +
* See above for remaining settings.
 +
 
 +
===Ubuntu===
 +
Some customers report problems setting up eduroam on Ubuntu 22.04 and newer. The problem is described here:
 +
<br>
 +
* https://bugs.launchpad.net/ubuntu/+source/wpa/+bug/1958267
 
<br>
 
<br>
* '''Name:''' Free to choose
+
 
* '''SSID:''' eduroam
+
{| width="70%" style="background-color:yellow; border-style:dashed; border-width:3px; border-color:red; padding: 5px; "
* '''Security:''' WPA & WPA2 Enterprise
+
| '''Attention:''' <br>
* '''Legitimacy:''' TLS
+
The following solution suggestion comes from a customer. Use at your own risk. There was no examination by the ZIM.
* '''Usercertificate:''' None
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|}
* '''CA-Certificate''' Choose the "T-Telesec Globalroot Class 2".
 
* '''Secret Key''' Choose your usercertificate.
 
* '''Password for the secret key''' The import password for the user certificate - We copied that one in the ServicePortal.
 
 
<br clear=all>
 
<br clear=all>
  
=== Troubleshooting ===
+
<pre>
In some network manager the field '''Usercertificate''' is not allowed to be empty. You can insert a random file like a 0-byte-file or the telekom cert. Now you should be able to click on '''connect'''.
+
1) Find wpa_supplicant service file with `systemctl status wpa_supplicant`.
 +
    For me, the path is "/lib/systemd/system/wpa_supplicant.service"
 +
2) In that file, (with superuser rights), add the line
 +
    `Environment="OPENSSL_CONF=/usr/lib/ssl/openssl.cnf"`
 +
3) Backup old config:
 +
    `sudo cp /usr/lib/ssl/openssl.cnf /usr/lib/ssl/openssl.cnf.backup`
 +
4) Modify "openssl.cnf" like follows:
 +
    a) Below "[openssl_init]" add the line "ssl_conf = ssl_sect".
 +
    b) At the end of the file, add
 +
      [ssl_sect]
 +
      system_default = system_default_sect
 +
 
 +
      [system_default_sect]
 +
      Options = UnsafeLegacyRenegotiation
 +
      CipherString = DEFAULT:@SECLEVEL=1
 +
5) Restart the service `sudo systemctl restart wpa_supplicant.service`.
 +
    If that doesn't work, reboot.
 +
</pre>
 +
 
 +
<!--
 +
===User certificate ===
 +
* You may be able to leave the User Certificate field blank.
 +
* Some network managers do not save the profile as long as all certificate fields are not filled in, including the '''User Certificate''' field. It is then sufficient to enter any file in the user certificate field (0byte file, or e.g. the telekom-cert). You should then be able to save the profile.
 +
-->
 +
=== Linux Mint ===
 +
On Linux Mint it can happen that the user certificate cannot be selected when selecting it in the network settings. Linux Mint does not recognize the file extension/format .p12 in the selection.
 +
 
 +
==== Solution: ====
 +
Convert user certificate from P12 to PEM format
 +
<pre>openssl pkcs12 -in Network_Certificate_UNIACCOUNTNAME_XXXX.p12 -out Network_Certificate_UNIACCOUNTNAME_XXXX.pem -nodes</pre>
 +
After the conversion you can continue as described.
  
<div style="text-align:right;"><i> Many thanks to Katarina Ebert for the screenshots and Stefan Löwen for the certificate hint!</i></div>
+
==See also==
 +
* [[Netzwerk]]

Aktuelle Version vom 8. November 2024, 09:52 Uhr

Die deutsche Version finden Sie auf der Seite Eduroam unter Linux

These instructions for setting up the eduroam WLAN at the University of Paderborn apply to devices with Linux via the user interface (GUI). As an example, the network is set up here under Ubuntu 14.04 LTS with Gnome Desktop. Depending on the Linux version, the settings may vary slightly. Please note that the Notebook Café does not offer immediate Linux support.

What to do?[Bearbeiten | Quelltext bearbeiten]

  • Create your personal university network certificate
    • <optional> Download the root certificate. This is a standard root certificate, so it should already exist.
  • Set up the eduroam network.
  • Delete any existing webauth profile so that the device automatically connects to eduroam.
  • Special case: Depending on the Linux version, uni-paderborn.de must be entered under Domain/domain.

Step-by-step instructions[Bearbeiten | Quelltext bearbeiten]

Provide certificates[Bearbeiten | Quelltext bearbeiten]

Access using a browser such as B. Firefox or Internet Explorer, open the service portal, log in with your user name and password and apply for a new certificate under "WLAN". Enter the name of the device on which the certificate is to be installed.
A password will then be automatically generated for the certificate and displayed on the following page. It is best if the password is copied for further installation.

without


  • Click "Neues Zertifikat erstellen".


without


  • Give the certificate a unique name (Ex: Laptop xy)
  • Select Version 2 as the file format.
  • Then click on "Neues Zertifikat zusenden".


without


  • A new network certificate has been created for you.
  • First copy the Import Password to the clipboard.
  • Now click on "Netzwerkzertifikat herunterladen".
  • Then click "CA-Zertifikat herunterladen".


Save both certificates e.g. B. in your user folder or another safe location. Do not delete/move this folder!

Set up Eduroam[Bearbeiten | Quelltext bearbeiten]

status menu


  • Open the status menu.
  • Select "WLAN-Netzwerke auswählen".


WLAN settings


  • Choose eduroam.


Set up eduroam as follows:

eduroam setup


  • Security: WPA & WPA2 Enterprise
  • Legitimation: TLS
  • Identity: <username>@uni-paderborn.de (replace <username> with your university account
  • Domain (if available): radius.uni-paderborn.de
  • CA Certificate:' Select the USERTrust RSA Certification Authority certificate (USERTrustRSACertificationAuthority.crt).
  • Password CA certificate: Remains blank.
  • User certificate: Select your personal network certificate (the file that ends in .p12 and contains your university account username).
  • User certificate password: Remains blank.
  • Secret user key: Is usually automatically filled with "User certificate" - otherwise insert it yourself
  • User key password: Import password for your personal network certificate.


  • <variable> domain:
    1. uni-paderborn.de (Some Linux versions require this entry)
    2. radius.uni-paderborn.de (or this one)
    3. <leave blank> (or something like that, if it shows at all)

Troubleshooting[Bearbeiten | Quelltext bearbeiten]

Add manually[Bearbeiten | Quelltext bearbeiten]

You may also be able to add the eduroam network manually:

  • Connection name: Can be freely selected
  • SSID: eduroam
  • See above for remaining settings.

Ubuntu[Bearbeiten | Quelltext bearbeiten]

Some customers report problems setting up eduroam on Ubuntu 22.04 and newer. The problem is described here:


Attention:

The following solution suggestion comes from a customer. Use at your own risk. There was no examination by the ZIM.


1) Find wpa_supplicant service file with `systemctl status wpa_supplicant`.
    For me, the path is "/lib/systemd/system/wpa_supplicant.service"
2) In that file, (with superuser rights), add the line
    `Environment="OPENSSL_CONF=/usr/lib/ssl/openssl.cnf"`
3) Backup old config:
    `sudo cp /usr/lib/ssl/openssl.cnf /usr/lib/ssl/openssl.cnf.backup`
4) Modify "openssl.cnf" like follows:
    a) Below "[openssl_init]" add the line "ssl_conf = ssl_sect".
    b) At the end of the file, add
      [ssl_sect]
      system_default = system_default_sect

      [system_default_sect]
      Options = UnsafeLegacyRenegotiation
      CipherString = DEFAULT:@SECLEVEL=1
5) Restart the service `sudo systemctl restart wpa_supplicant.service`.
    If that doesn't work, reboot.

Linux Mint[Bearbeiten | Quelltext bearbeiten]

On Linux Mint it can happen that the user certificate cannot be selected when selecting it in the network settings. Linux Mint does not recognize the file extension/format .p12 in the selection.

Solution:[Bearbeiten | Quelltext bearbeiten]

Convert user certificate from P12 to PEM format

openssl pkcs12 -in Network_Certificate_UNIACCOUNTNAME_XXXX.p12 -out Network_Certificate_UNIACCOUNTNAME_XXXX.pem -nodes

After the conversion you can continue as described.

See also[Bearbeiten | Quelltext bearbeiten]


Bei Fragen oder Problemen wenden Sie sich bitte telefonisch oder per E-Mail an uns:

Tel. IT: +49 (5251) 60-5544 Tel. Medien: +49 (5251) 60-2821 E-Mail: zim@uni-paderborn.de

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