[Thinlinc-technical] sshd error msg
Håkan Andersson
ha at cloudsolutions.se
Tue Jan 18 12:58:30 CET 2011
Hej,
Skulle ni kunna ta bort mig från mailinglistan också, tack.
--------------------------------------------------------
Best regards / Med vänlig hälsning
Håkan Andersson | CEO & Cloud Architect
Cloud Solutions AB | www.cloudsolutions.se
LinkedIn: http://se.linkedin.com/in/sapcloudhosting
Hammarby fabriksväg 23 | SE-120 33 Stockholm
ha at cloudsolutions.se | +46 708 200 366
2011/1/18 h zerbes <heze54 at gmail.com>
> First, my apologies to Rudi and Wesley for getting these emails! Looks like
> the
> mailing list got mixed up somehow and I'm sure Peter will be able to sort
> it
> out. For the record, I didn't sent the mails to you directly, gents, just
> cc'ed
> thinlinc-technical at lists.cendio.se.
>
> And if you gents have never heard of thinlinc, feel free to check it out!
> :-|
>
> I only came about it a few days ago while researching different VDI
> solutions
> for our IT security consultancy here at surecity.com.au and already think
> it's a
> great product. (And I'm not even related to Peter...;-) )
>
> Follow-up mails from me will go to Peter directly unless he objects.
>
> On 18/01/11 21:14, Peter Åstrand wrote:
> >
> > I've done some testing on a Ubuntu 10.04 machine. I've also noticed that
> > connections to the sound tunnel happens every 2 seconds or so. There are
> two
> > processes responsible for this:
>
> Thanks a lot for your testing and verification of the issue, Peter!
>
> It's true that sound is not working while using the thinlinc client.
>
> The ssh client seems to use a whole stack (read: 6) of redirects on the
> remote
> server:
>
> $ pgrep -l -f /opt/thinlinc/lib/tlclient/ssh
> 14757 /opt/thinlinc/lib/tlclient/ssh -N -o PubkeyAuthentication=no -o
> CheckHostIP=no -o NumberOfPasswordPrompts=1 guest at 172.27.26.205 -p 22 -L
> 36488:127.0.0.1:5901 -R 4910:127.0.0.1:34438 -R 4915:127.0.0.1:35093 -R
> 4916:127.0.0.1:54180 -R 4914:127.0.0.1:39659 -R 4913:127.0.0.1:37192
>
> whereas the server has these ports open:
>
> root at srv205:~# netstat -atn | grep LIST
> tcp 0 0 127.0.0.1:4910 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:4913 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:4914 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:1010 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:4915 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:4916 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:6011 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:9000 0.0.0.0:* LISTEN
> tcp 0 0 0.0.0.0:904 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:5901 0.0.0.0:* LISTEN
>
>
> the client, OTOH, is missing two of them (34438,35093):
>
> $ netstat -atn | grep LIST | egrep "36488|34438|35093|54180|39659|37192"
> tcp 0 0 127.0.0.1:54180 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:37192 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:36488 0.0.0.0:* LISTEN
> tcp 0 0 127.0.0.1:39659 0.0.0.0:* LISTEN
> tcp6 0 0 ::1:36488 :::* LISTEN
>
>
>
> >
> > /usr/lib/gnome-settings-daemon/gnome-settings-daemon
> > /usr/lib/indicator-sound/indicator-sound-service
> >
> > This is probably normal behaviour.
>
> "Sound" and "normal" don't go well together recently on Ubuntu, I have to
> admin :-(
>
> But yes, if I turn off sound on the thinlinc client, I don't get the error
> msgs
> anymore.
>
> > I've also managed to reproduce the "connect failed: Connection refused"
> error.
> > It happens if you have requested Sound redirection in the client, but the
> > client side sound server (PulseAudio) is not running. I can reproduce
> this
> > problem by killing it manually.
> >
> > Probably, you get this error because PulseAudio on the client side fails
> or
> > crashes. You should be able to see this in tlclient.log.
>
> Hmm, seems like there is only the current and one old log being kept? Just
> as
> well the .old.log one still contained the error as you predicted:
>
> 2011-01-18T22:08:55: VNC command: /opt/thinlinc/lib/tlclient/vncviewer
> -FullColour=1 -LowColourLevel=2 -AutoSelect=1 -CustomCompressLevel=0
> -CompressLevel=6 -QualityLevel=8 -PasswordFile=/tmp/vncvi
> ewerYgkyVy -Shared=1 -DesktopSize=1280x900 127.0.0.1::36488
> 2011-01-18T22:08:55: PulseAudio command:
> /opt/thinlinc/lib/tlclient/pulseaudio
> -n --use-pid-file=false -L "module-esound-protocol-tcp listen=127.0.0.1
> port=34438 cookie='/tmp/esdLehWxT'" -L "module
> -native-protocol-tcp listen=127.0.0.1 port=35093
> cookie='/tmp/pulseaudionIOkae'"
> --fail=false -L module-alsa-sink -L module-alsa-source -L module-oss
> --log-level=notice
> 2011-01-18T22:08:55: PulseAudio pid is 14758
> 2011-01-18T22:08:55: Smart card daemon command:
> /opt/thinlinc/lib/tlclient/pcsctun -b 127.0.0.1 -p 54180 -c
> /tmp/pcsctundngaOy
> 2011-01-18T22:08:55: smart card daemon pid is 14759
> 2011-01-18T22:08:55: unfsd command: /opt/thinlinc/lib/tlclient/unfsd -d -e
> /tmp/unfsdtJL8sT -n 39659 -m 39659 -l 127.0.0.1 -t -p -s
> 2011-01-18T22:08:55: unfsd pid is 14760
> 2011-01-18T22:08:56: vncviewer pid is 14761
> 2011-01-18T22:08:56: unfsd: UNFS3 unfsd 0.9.20 (C) 2006, Pascal Schmidt
> <unfs3-server at ewetel.net>
> 2011-01-18T22:08:56: unfsd: /media/cdrom: ip 127.0.0.1 mask 255.255.255.255
> options 24
> 2011-01-18T22:08:56: unfsd: /media/floppy: ip 127.0.0.1 mask
> 255.255.255.255
> options 28
> 2011-01-18T22:08:56: vncviewer:
> 2011-01-18T22:08:56: vncviewer: ThinLinc Client for X - built Oct 15 2010
> 01:27:54
> 2011-01-18T22:08:56: vncviewer: Based on TigerVNC viewer - see
> http://www.tigervnc.org
> 2011-01-18T22:08:56: vncviewer: Copyright (C) 2002-2005 RealVNC Ltd.
> 2011-01-18T22:08:56: vncviewer: Copyright (C) 2000-2006 TightVNC Group
> 2011-01-18T22:08:56: vncviewer: Copyright (C) 2004-2009 Peter Astrand for
> Cendio AB
> 2011-01-18T22:08:56: vncviewer: See included EULA.txt for licensing
> details.
> 2011-01-18T22:08:56: vncviewer: See http://www.cendio.com for information
> on
> ThinLinc.
> 2011-01-18T22:08:56: pulseaudio: pulseaudio: pulsecore/pdispatch.c:136:
> pa_pdispatch_new: Assertion `(entries && table) || (!entries && !table)'
> failed.
> 2011-01-18T22:08:56: vncviewer:
> 2011-01-18T22:08:56: vncviewer: Tue Jan 18 22:08:56 2011
> 2011-01-18T22:08:56: vncviewer: CConn: connected to host 127.0.0.1
> port 36488
> 2011-01-18T22:08:56: vncviewer: CConnection: Server supports RFB protocol
> version 3.8
> 2011-01-18T22:08:56: vncviewer: CConnection: Using RFB protocol version
> 3.8
> 2011-01-18T22:08:56: vncviewer: TXImage: Using default colormap and
> visual,
> TrueColor, depth 24.
> 2011-01-18T22:08:56: vncviewer: CConn: Using pixel format depth 24
> (32bpp) little-endian rgb888
> 2011-01-18T22:08:56: vncviewer: CConn: Using Tight encoding
> 2011-01-18T22:08:56: Process 14758 killed by signal 6
> 2011-01-18T22:16:26: vncviewer:
> 2011-01-18T22:16:26: vncviewer: Tue Jan 18 22:16:26 2011
> 2011-01-18T22:16:26: vncviewer: main: End of stream
> 2011-01-18T22:16:26: Process 14761 exited with code 0
> 2011-01-18T22:16:27: Log file ended
>
>
> >
> > We have a known issue with the PulseAudio included with our client: It
> fails
> > on system with the Alsa PulseAudio plugin. On Fedora, you can work around
> the
> > problem by uninstalling the package alsa-plugins-pulseaudio. On Ubuntu
> 9.04,
> > you must instead change the configuration. For example, you can rename
> > /usr/share/alsa/pulse-alsa.conf. We haven't verified if this also works
> on 10.04.
> >
> > This problem will be fixed in the next release.
> >
> > If you don't need sound, you can also just clear the Sound checkbox in
> the
> > client GUI. That should get rid of these messages.
>
>
> It did, thanks a lot for that, Peter! Who doesn't want to have a happy UNIX
> system under his shell?
> Sound works in general on the client machine and pulse-audio is running on
> both,
> client and server.
>
> Well, as mentioned, I've only started looking thinlinc and sound would
> certainly
> be a "nice to have" for me and a "must have" for potential customers, if
> they
> were to migrate completely to thinlinc. This was the first problem I
> noticed
> while test driving it. I'd still have to read up a bit more in the manual
> and
> check out some of the other thinlinc features.
>
> All the best, Peter, thanks again for the quick help and keep up the good
> work!
>
> I'd like to be able to introduce thinlinc here in Australia in the future.
> heinz
>
>
>
>
>
>
>
>
> _______________________________________________
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> http://lists.cendio.se/mailman/listinfo/thinlinc-technical
>
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