Question about differences between possibilities of authentication

[Bas Penris]

Hi All,
 
The last week I've had my first encounter with FreeRADIUS as we were supposed 
to deploy eduroam. I had a lot of fun doing it although I have dreamt about the 
config files after a couple of days :)
 
Everything is working as it should so no worries there, but I'm curious about 
something. I configured the proxies and the local realm. When I did a radtest 
like this:
radtest che...@localdomain.nl password 127.0.0.1 1 secret
I would get an Accept-Accept. The debug output would show that first a bind and 
then an LDAP search is performed in our eDirectory. Okay! Fun times I thought, 
let's try it on my mobile phone because a test account I got from an academic 
institution in the UK worked so local authentication should work as well! I 
entered the credentials but now comes the difference. Using a Wifi device made 
the LDAP search fail because it tried to authenticate the u...@domain.nl in 
stead of stripping the suffix.
 
I've been staring at the config files to see if I got the LDAP-filter defined 
two times somewhere but that doesn't seem to be the case. Now, this wasn't a 
really big problem because users can be pretty stupid and we decided to let 
them authenticate using their email address in stead of their username@domain 
which would to too much confusion for them.
 
The LDAP filter was:
filter = (uid=%{Stripped-User-Name:-%{User-Name}})
Is now:
filter = (|(cn=%{Stripped-User-Name:-%{User-Name}})(mail=%{User-Name}))
The proxy.conf lines right before it's defaulted to eduroam:
realm ettyhillesumlyceum.nl {
}
 
Anyone has an idea why radtest would behave differently from an 802.1x login?
 
Regards,
 
Bas
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Betr.: Re: Question about differences between possibilities of authentication

[Bas Penris]

Hi Alan,
 
The reason I didn't post the debugs and config files was because I thought 
there might be an easy explanation which one of you would be able to spoon up 
without any trouble. Especially because nothing is broken and everything works 
as it's supposed to.
 
I'll get back with a debug log and the config after the weekend.
 
Regards,
 
Bas

 Alan DeKok al...@deployingradius.com 12-04-13 15:52 
Bas Penris wrote:
 Everything is working as it should so no worries there, but I'm curious
 about something. I configured the proxies and the local realm. When I
 did a radtest like this:
 radtest che...@localdomain.nl password 127.0.0.1 1 secret
 I would get an Accept-Accept.

  That's the easy part.

 The debug output would show that first a
 bind and then an LDAP search is performed in our eDirectory. Okay! Fun
 times I thought, let's try it on my mobile phone because a test account
 I got from an academic institution in the UK worked so local
 authentication should work as well! I entered the credentials but now
 comes the difference. Using a Wifi device made the LDAP search fail
 because it tried to authenticate the u...@domain.nl
 in stead of stripping the suffix.

  Don't test from a mobile device until you've done complete EAP testing
yourself.  You'll get a LOT more useful information.

  See my web page: http://deployingradius.com

 I've been staring at the config files to see if I got the LDAP-filter
 defined two times somewhere but that doesn't seem to be the case. Now,
 this wasn't a really big problem because users can be pretty stupid and
 we decided to let them authenticate using their email address in stead
 of their username@domain which would to too much confusion for them.

  It's usually best to use the full email address.  It simplifies a lot
of issues.

 The LDAP filter was:
 filter = (uid=%{Stripped-User-Name:-%{User-Name}})
 Is now:
 filter = (|(cn=%{Stripped-User-Name:-%{User-Name}})(mail=%{User-Name}))
 The proxy.conf lines right before it's defaulted to eduroam:
 realm ettyhillesumlyceum.nl {
 }

  So.. you're posting tiny pieces of the config.  But not the debug
output as suggested in the FAQ, README, man page, web pages, and daily
on this list?

 Anyone has an idea why radtest would behave differently from an 802.1x
 login?

  Because it's doing different searches.  See the debug output for more
information.  It's all in there.  Really.  That's why we tell people to
read it, and to post it here.

  Alan DeKok.
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