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Re: [[cat-users]] Fwd: eduroam CAT tool bug


Chronological Thread 
  • From: Daniel Roch <rochdan AT uni-hildesheim.de>
  • To: cat-users AT lists.geant.org
  • Subject: Re: [[cat-users]] Fwd: eduroam CAT tool bug
  • Date: Tue, 03 Mar 2020 10:05:04 +0100

Same here. We have run the script on lots of different Linux devices and have never needed any root permissions.

Regards,
Dan

Am 03.03.20 um 10:01 schrieb Robert Grätz:
Hello,

I couldn't comprehend why you need root rights to run the script. I tested it with very much linux distros and no root permissions were necessary.

How did you call the script?

Best regards
Robert


Am 03.03.20 um 09:38 schrieb Dennis Tants:
Hello,

we had the same problem on different linux systems.
For us the problem was, that the CAT Tool can't write the file to
"/etc/NetworkManager/system-connections" without root permissions. So we
had to use sudo to be able to atleast write the file. Afterwards we
would just edit the corresponding permission line, to match the system
user. Reboot the system (just to be sure) and eduroam could be used.

Yours sincerely,
Dennis Tants

On 03/03/2020 09:16, Robert Grätz wrote:
Hello,

the scripts works. But you shouldn't run the script with sudo permission!

The script write the current user to the permission attribute
(permission=user:$USER). So if he run the script with sudo, the current
user is root and the script save permission=user:root.

Best regards
Robert


Am 02.03.20 um 19:08 schrieb Bernd Hanitzsch:
Hello

I did help someone to get the eduroam running under Linux (current
ubuntu 18.04.). He did download the CAT for Uni Heidelberg and did the
documented install:

1. $ sudo ./eduroam-linux-Universitat_Heidelberg-Standard_ab_2019.py

-> entered all needed details correctly

2. Then he tried to connect to eduroam. When selecting it in
Networkmanager, he was asked again for credentials and answered them
correctly. Networkmanager tried to connect and repeated question for
password a few times but was not able to connect...

3. Repeated the install and tried a few other things, nothing lead to a
solution!!!

4. Deep investigation did show up following:

root@lx:/etc/NetworkManager/system-connections# ls -al
insgesamt 32
drwxr-xr-x 2 root root 4096 Mär  1 13:25  ./
drwxr-xr-x 7 root root 4096 Dez 27 20:04  ../
-rw------- 1 root root  563 Mär  1 13:10  eduroam
-rw------- 1 root root  408 Mär  1 13:25 'eduroam 1'
-rw------- 1 root root  417 Jan 23 20:01  xyz
-rw------- 1 root root  316 Jan  5 14:47 abc

-> Above we are in the place where all the system connections from
NetworkManager are stored. Interestingly we see a second eduroam config
("eduroam 1"). This is the one which was created from NetworkManager in
step 2 as described above and this is the problem! It should have used
the one created by CAT (just "eduroam"). But id did not. As to see
below, there is a permission line ("permissions=user:root:;") in it,
which is just wrong in this case!!! Either it shall be the proper user
instead root, or just be left empty after the equal sign!!!

  root@lx:/etc/NetworkManager/system-connections# diff eduroam eduroam\ 1
2,3c2,3
< id=eduroam
< uuid=66ccefa4-4211-4bb1-9e18-1b428a219214
---
id=eduroam 1
uuid=5d62fafa-a648-452b-a96e-0feab7c1a727
5c5
< permissions=user:root:;
---
permissions=
7a8
mac-address=aa:bb:cc:...
8a10
mode=infrastructure
12d13
< group=ccmp;tkip;
14,15d14
< pairwise=ccmp;
< proto=rsn;
18,20d16
  ...

To clean it up and get it working:
1. $ sudo rm "/etc/NetworkManager/system-connections/eduroam 1"
2. $ sudo vi "/etc/NetworkManager/system-connections/eduroam"
-> and modify the "permissions=user:root:;" to "permissions="
3. $ sudo systemctl restart NetworkManager

And now it shall be working just with any additional steps needed! I
would strongly suggest, that someone shall correct the CAT
(eduroam-linux-Universitat_Heidelberg-Standard_ab_2019.py). If you need
help, just contact me.

Kind regards

Bernd Hanitzsch
Oerties GmbH
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--
MfG,
Daniel Roch
Rechenzentrum Universität Hildesheim
Tech. Dokumentation, Support

Tel.: + 49 (0)5121.883-92890




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