Antwort: (RADIATOR) Re: *GhostSessions Problem

Andreas Stollar andreas at speakeasy.net
Tue Sep 10 10:37:35 CDT 2002


Hello,

I was having a similar problem using "DefaultSimultaneousUse 1" in my 
config. I mostly blame our outsourced dial up vendor, who uses a chaotic 
mess of different NAS devices, so stop records did not always get 
received, and using either snmp or finger only worked for half of the 
NAS's out there. We were having a support nightmare with users not being 
allowed to dial up because Radiator had an active session. As a last 
resort I started using "NasType Ping" under my DEFAULT client. This has 
turned out almost perfect. Ok, so someone with a firewall that blocks icmp 
traffic will be able to get multiple sessions now, but this is minor 
compared to the amount of happy customers now no longer calling tech 
support. 

Andreas Stollar
Speakeasy, Inc. Sr. System Administrator

On Tue, 10 Sep 2002, Ayotunde Itayemi wrote:

> Date: Tue, 10 Sep 2002 09:51:35 +0100
> From: Ayotunde Itayemi <aitayemi at metrong.com>
> To: "radiator at open.com.au" <radiator at open.com.au>
> Subject: Re: Antwort: (RADIATOR) Re: *GhostSessions Problem
> 
> 
> ----- Original Message -----
> From: "Ayotunde Itayemi" <aitayemi at metrong.com>
> To: "Hugh Irvine" <hugh at open.com.au>
> Sent: Tuesday, September 10, 2002 9:51 AM
> Subject: Re: Antwort: (RADIATOR) Re: *GhostSessions Problem
> 
> 
> > Hi Hugh,
> >
> > I know you have said before that there is no way to query windows for
> online
> > clients
> > using SNMP. This is just to the "house" in general. Is there anyone out
> > there with
> > workable solutions for windows?
> >
> > Regards,
> > Tunde I.
> >
> > ----- Original Message -----
> > From: "Hugh Irvine" <hugh at open.com.au>
> > To: "Christian Rautscher" <christian at run.bz.it>
> > Cc: <radiator at open.com.au>
> > Sent: Tuesday, September 10, 2002 8:34 AM
> > Subject: Re: Antwort: (RADIATOR) Re: *GhostSessions Problem
> >
> >
> > >
> > > Hello Christian -
> > >
> > > As I discussed in a previous mail, Radiator can use the NasType
> > > parameter in the Client clause(s) to enforce strict session limit
> > > checking with the NAS equipement being used, as long as the NAS can be
> > > queried successfully.
> > >
> > > Unfortunately, we cannot provide solutions for all types of NAS and all
> > > versions of NAS software, so it becomes a matter of trial and error for
> > > Radiator users to work out how to make things work in their own
> > > environment. We have provided a number of NasType modules and the source
> > > code for all of them is in the "Radius/Nas" directory.
> > >
> > > The only thing I can suggest is that you test the query that Radiator
> > > tries to run by hand to see what result you get, and if it is not
> > > correct then you will need to verify what is wrong in the code and
> > > correct it. It may also be the case that you need a different version of
> > > the SNMP code for example, or that your NAS needs to be configured to
> > > respond correctly to the query that Radiator tries to send.
> > >
> > > Note that we do not have any NAS equipment ourselves and we rely on
> > > customers to do their own testing. Many customers have done exactly this
> > > and contributed their code, most of which is what is found in the
> > > Radiator distribution.
> > >
> > > This is a vexing problem, I know, but there is little I can do to help
> > > you.
> > >
> > > regards
> > >
> > > Hugh
> > >
> > >
> > > On Tuesday, September 10, 2002, at 04:22 PM, Christian Rautscher wrote:
> > >
> > > >
> > > > Hello Hugh,
> > > > i did post it already in the Mailing List last week, but i
> > > > got no reply. That's why i thought, as we did buy a 7-station-licence
> > > > of Radiator i could send it to the support list, and hope
> > > > that somebody will response me there :)
> > > >
> > > > You cannot help me or? I mean can you give me at least a little
> > > > hint, how the problem could be resolved. ;)
> > > >
> > > > Happy working,
> > > > regards,
> > > > Christian
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Hugh Irvine <hugh at open.com.au>@open.com.au am 10.09.2002 03:58:06
> > > >
> > > > Gesendet von:     owner-radiator at open.com.au
> > > >
> > > >
> > > > An:    "Christian Rautscher" <christian at run.bz.it>
> > > > Kopie: radiator at open.com.au (Blindkopie: Christian
> Rautscher/RUN/RAIFF)
> > > >
> > > > Thema: (RADIATOR) Re: *GhostSessions Problem
> > > >
> > > >
> > > >
> > > > Hello Christian -
> > > >
> > > > I have posted this to the Radiator mailing (radiator at open.com.au) list
> > > > for you.
> > > >
> > > > You should post these questions to the Radiator list, not the support
> > > > list.
> > > >
> > > > regards
> > > >
> > > > Hugh
> > > >
> > > >
> > > > On Monday, September 9, 2002, at 07:30 PM, Christian Rautscher wrote:
> > > >
> > > >> Hello Hugh, hi everybody,
> > > >>
> > > >> i'd like to ask if some1 could help me with the quite "famous"
> > > >> Problem of the "ghost-sessions" in Radiator-DB.
> > > >>
> > > >> P.es.
> > > >>
> > > >> AccessServer works fine. Connecting clients will be registered in
> > > >> the Radonline-DB of Radiator with their SessionStart-Entry. Now lets
> > > >> assume that at a certain point, due to networking failure or other
> > > >> reason
> > > >> Radiator and AccessServer aren't able to comunicate to each other
> > > >> anymore.
> > > >>
> > > >> Now we assume that Client A and B are disconnecting themselves right
> at
> > > >> this moment.
> > > >> PROBLEM:    NAS doesn't send Stop-Session-Entry to Radiator, so for
> > > >> Radiator that
> > > >>       client is still online.
> > > >>
> > > >> Now let's assume that the communication Problem between Radiator and
> > > >> NAS
> > > >> has been
> > > >> solved, and  client A would like to re-enter. But isn't able, because
> > > >> of
> > > >> the
> > > >> configuration of Radiator the client exceeds the its allowed
> > > >> simulateous
> > > >> Permission of 1.
> > > >>
> > > >> As i've already tried with the Nas-Type Attribute but somehow it
> won't
> > > >> work
> > > >> as it should.
> > > >>
> > > >> As i noticed that this kind of problem appeared quite often in this
> > > >> mailing-list i hope that
> > > >> someone may be able to help me.
> > > >>
> > > >> Thank you just in advance,
> > > >> Christian
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > > --
> > > > Radiator: the most portable, flexible and configurable RADIUS server
> > > > anywhere. Available on *NIX, *BSD, Windows 95/98/2000, NT, MacOS X.
> > > > -
> > > > Nets: internetwork inventory and management - graphical, extensible,
> > > > flexible with hardware, software, platform and database independence.
> > > >
> > > > ===
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> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > > --
> > > Radiator: the most portable, flexible and configurable RADIUS server
> > > anywhere. Available on *NIX, *BSD, Windows 95/98/2000, NT, MacOS X.
> > > -
> > > Nets: internetwork inventory and management - graphical, extensible,
> > > flexible with hardware, software, platform and database independence.
> > >
> > > ===
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> >
> 
> ===
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