gnome-watchdog script
Alfred Nutile
alfred at nationalpriorities.org
Mon Nov 12 01:37:23 GMT 2007
Thanks for the gnome-watchdog script!
On Sun, 2007-11-11 at 11:20 +0000,
edubuntu-users-request at lists.ubuntu.com wrote:
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> Today's Topics:
>
> 1. Re: Lingering Users and Painfully Slow OpenOffice Startup
> (Stefano Rivera)
> 2. Re: Lingering Users and Painfully Slow OpenOffice Startup
> (Fredrik Jansson)
> 3. Pulseaudio not starting on iMac client (Bill Moseley)
> 4. Re: Lingering Users and Painfully Slow OpenOffice Startup
> (R. Scott Belford)
> 5. Re: Lingering Users and Painfully Slow OpenOffice Startup
> (Bill Moseley)
> 6. Re: gutsy kiosk mode (Reiner Schmid)
> 7. control of internet access (Kai W?stermann)
> 8. Re: control of internet access (Reiner Schmid)
> 9. Re: control of internet access (Asmo Koskinen)
> 10. Is there Open source oftware available for PDAs? (Charlie Dorff)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 10 Nov 2007 16:39:30 +0200
> From: Stefano Rivera <ubuntu-edubuntu-devel at rivera.za.net>
> Subject: Re: Lingering Users and Painfully Slow OpenOffice Startup
> To: edubuntu-users at lists.ubuntu.com
> Message-ID: <20071110143930.GT29985 at rivera.co.za>
> Content-Type: text/plain; charset=utf-8
>
> Hi R. (2007.11.10_02:05:04_+0200)
> > I notice that, independent of OpenOffice, user processes continue running
> > even after a logout. It seems that this is the current hack, but is there
> > something systemic that I can help track down?
>
> We've seen this on an Ubuntu lab, too. They hog the CPU, and waste a
> little RAM.
>
> SR
>
> --
> Stefano Rivera
> http://rivera.za.net/
> H: +27 21 794 7937 C: +27 72 419 8559
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 10 Nov 2007 15:59:51 +0100
> From: "Fredrik Jansson" <fja at forsmarksskola.se>
> Subject: Re: Lingering Users and Painfully Slow OpenOffice Startup
> To: edubuntu-users at lists.ubuntu.com
> Message-ID:
> <ba5240d30711100659s4e32f0a7o748ef237510408f7 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi,
>
> We've run edubuntu 7.10 about a week and we don't have any problems caused by
> OpenOffice. We have seen that OpenOffice and firefox, take time to
> load, but we have
> tracked the problem to gnome-panel and/or nautilus.
>
> Because of that we have tried xfce4 and with xfce we got better performance.
>
> Do anybody know how to set xfce4 as default for ldm? I've tried files
> like .xinitrc and
> .dmrc or similar.
>
> Regards
> Fredrik Jansson, Forsmarks skola, Sweden
>
> PS. Our server has 4Gb memory and 2 * 2.4 GHz Intel P4. We are about
> 30 users at a time. DS
>
> On Nov 10, 2007 3:39 PM, Stefano Rivera
> <ubuntu-edubuntu-devel at rivera.za.net> wrote:
> > Hi R. (2007.11.10_02:05:04_+0200)
> > > I notice that, independent of OpenOffice, user processes continue running
> > > even after a logout. It seems that this is the current hack, but is there
> > > something systemic that I can help track down?
> >
> > We've seen this on an Ubuntu lab, too. They hog the CPU, and waste a
> > little RAM.
> >
> > SR
> >
> > --
> > Stefano Rivera
> > http://rivera.za.net/
> > H: +27 21 794 7937 C: +27 72 419 8559
> >
> >
> > --
> > edubuntu-users mailing list
> > edubuntu-users at lists.ubuntu.com
> > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
> >
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 10 Nov 2007 07:52:51 -0800
> From: Bill Moseley <moseley at hank.org>
> Subject: Pulseaudio not starting on iMac client
> To: edubuntu-users at lists.ubuntu.com
> Message-ID: <20071110155251.GA3247 at hank.org>
> Content-Type: text/plain; charset=us-ascii
>
> On my Bondi iMac pulseaudio doesn't start. I've got the snd-powermac
> module loaded and /dev/dsp exists and it will "beep" in both an xterm
> session on the server and in a terminal session on the client -- but
> that's not using Pulseaudio.
>
> And "pa aux | grep pul" does not show it running. If I run that on my
> iBook then it does show pulseaudio running.
>
>
> If I try and manually start pulseaudio on the client I see:
>
> root at ltsp:~# pulseaudio --system --disable-shm --no-cup-limit -n
> pic.c: stale PID file, overwriting.
> Aborted
>
> I ran it with strace, but it doesn't seem to offer any help:
>
> http://hank.org/pulseaudio_strace.txt
>
> Only:
>
> --- SIGILL (Illegal instruction) @ 0 (0) ---
>
> Again, it works on a G4 powerpc iBook, but not on the Bondi.
>
>
> Should I try and build puleaudio from source? (Not sure I want to go
> through that experience on that old iMac.)
>
>
>
>
> --
> Bill Moseley
> moseley at hank.org
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 10 Nov 2007 08:02:38 -1000
> From: "R. Scott Belford" <scott at hosef.org>
> Subject: Re: Lingering Users and Painfully Slow OpenOffice Startup
> To: Edubuntu Community <edubuntu-users at lists.ubuntu.com>
> Message-ID: <4735F23E.4010709 at hosef.org>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> After installing
>
> http://www.morokeni.ch/edubuntu/gnome-watchdog_0.9.2_i386.deb
>
> User's processes are now purged after they log out. If they do not log
> out, however, and just reboot the terminal, their processes continue to
> run until they log in again. At this point watchdog notes that they
> already have running pid's and resets the user. This works, and the
> teacher observes that something similar was in place with the K12LTSP.
>
> This is a pretty substantial bug, I believe. The average user
> integrating Edubuntu into a thin-client lab and expecting it to perform
> reliably may not track down this fix. Without gnome-watchdog, users who
> log out have processes that continue to run throughout the day. On days
> when the teacher has 5 classes of 30 different students, the runaway
> processes get out of control.
>
> I installed prelink yesterday, after classes, and I am hoping that this
> will improve performance. I seem to recall Eric integrating this into
> the K12LTSP. The few test clients I tried loaded it much faster.
>
> Last, I have followed these suggestions
>
> http://www.zolved.com/synapse/view_content/28209/How_to_make_OpenOffice_run_faster_in_Ubuntu
>
> and they made a monumental difference on my home machines. I'll test
> this in the lab next week.
>
> Switching to a different window manager is not an option. This teacher
> has been running the K12LTSP since before Fedora was created. I am
> perpetually reminded that "it wasn't this way with the K12LTSP" when
> things are not quite the same. I am doing my best to figure out all the
> tweaks Eric H. and other integrated to make it great.
>
> --scott
>
>
>
>
> Fredrik Jansson wrote:
> > Hi,
> >
> > We've run edubuntu 7.10 about a week and we don't have any problems caused by
> > OpenOffice. We have seen that OpenOffice and firefox, take time to
> > load, but we have
> > tracked the problem to gnome-panel and/or nautilus.
> >
> > Because of that we have tried xfce4 and with xfce we got better performance.
> >
> > Do anybody know how to set xfce4 as default for ldm? I've tried files
> > like .xinitrc and
> > .dmrc or similar.
> >
> > Regards
> > Fredrik Jansson, Forsmarks skola, Sweden
> >
> > PS. Our server has 4Gb memory and 2 * 2.4 GHz Intel P4. We are about
> > 30 users at a time. DS
> >
> > On Nov 10, 2007 3:39 PM, Stefano Rivera
> > <ubuntu-edubuntu-devel at rivera.za.net> wrote:
> >> Hi R. (2007.11.10_02:05:04_+0200)
> >>> I notice that, independent of OpenOffice, user processes continue running
> >>> even after a logout. It seems that this is the current hack, but is there
> >>> something systemic that I can help track down?
> >> We've seen this on an Ubuntu lab, too. They hog the CPU, and waste a
> >> little RAM.
> >>
> >> SR
> >>
> >> --
> >> Stefano Rivera
> >> http://rivera.za.net/
> >> H: +27 21 794 7937 C: +27 72 419 8559
> >>
> >>
> >> --
> >> edubuntu-users mailing list
> >> edubuntu-users at lists.ubuntu.com
> >> Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
> >>
> >
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sat, 10 Nov 2007 16:28:44 -0800
> From: Bill Moseley <moseley at hank.org>
> Subject: Re: Lingering Users and Painfully Slow OpenOffice Startup
> To: Edubuntu Community <edubuntu-users at lists.ubuntu.com>
> Message-ID: <20071111002844.GA2282 at hank.org>
> Content-Type: text/plain; charset=us-ascii
>
> On Sat, Nov 10, 2007 at 08:02:38AM -1000, R. Scott Belford wrote:
> > Last, I have followed these suggestions
> >
> > http://www.zolved.com/synapse/view_content/28209/How_to_make_OpenOffice_run_faster_in_Ubuntu
> >
> > and they made a monumental difference on my home machines. I'll test
> > this in the lab next week.
>
> How do you push out changes like these to all existing (and new)
> users?
>
> > Switching to a different window manager is not an option. This teacher
> > has been running the K12LTSP since before Fedora was created. I am
> > perpetually reminded that "it wasn't this way with the K12LTSP" when
> > things are not quite the same. I am doing my best to figure out all the
> > tweaks Eric H. and other integrated to make it great.
>
> I've got Icewm as well as GNOME and I was hoping to see better
> performance with Icewm, but I didn't. I do think there's less to
> break with Icewm, though. GNOME will be an easier sell since everyone is used
> to using Apples.
>
> --
> Bill Moseley
> moseley at hank.org
>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sun, 11 Nov 2007 09:03:48 +0100
> From: Reiner Schmid <reischmid at gmx.de>
> Subject: Re: gutsy kiosk mode
> To: Edubuntu Users Group <edubuntu-users at lists.ubuntu.com>
> Message-ID: <4736B764.70600 at gmx.de>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello,
>
>
> > > in Feisty kioskmode it was not necessary to change something in the settings of firefox
> >
>
> Sorry I made a mistake. It was necessary to change the firefox settings in Feisty to work , too.
>
>
> > >If you manually set a proxy through your server, can you make it work?
> >
>
> Yes, now firefox works now with proxy settings.
>
>
> vlc-streaming:
> By the way in the past I had difficulties with the sound on my kiosk- video stream clients. (error message of vlc:no dev/dsp found )
>
> Now my solution:
> The problem was the pulse-audio package. I removed it in my kiosk-path (opt/ltsp-kiosk/i386) and now video-streaming works with full sound.
>
> Fine to have a video-streaming network based on Edubuntu Gutsy. It is easy to change to the (normal) client mode by changing the nbdport in the file
> /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default
>
>
> for the videostream-clients:
> DEFAULT vmlinuz ro initrd=initrd.img quiet splash nbdport=2002
>
>
> for the normal client-mode:
> DEFAULT vmlinuz ro initrd=initrd.img quiet splash nbdport=2000
>
> Perhaps this information could help someone ;-)
>
>
> Reiner
>
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> ------------------------------
>
> Message: 7
> Date: Sun, 11 Nov 2007 09:29:36 +0100
> From: Kai W?stermann <k.wuestermann at gmx.de>
> Subject: control of internet access
> To: Edubuntu Community <edubuntu-users at lists.ubuntu.com>
> Message-ID: <1194769776.6459.31.camel at kais-pc.local>
> Content-Type: text/plain; charset=UTF-8
>
> Moin!
>
> We are a primary school with children up the age of 10. So we need to
> control the Internet access in edubuntu for the children.
>
> We want to...
>
> ... switch off the Internet for all the thin clients
>
> ... log the sites and pages a user retrieves
>
> ... use a blacklist for the children's Internet access
>
> ... switch on the Internet access (It would be nice to do this for
> special user groups or classrooms)
>
> To switch on/off the Internet access seems to be easy if I add/delete
> the default route. But I also switch off the Internet access for the
> server itself so it can't do jobs like fetching mails, updates or time.
>
> For logging an using blacklist I could use squid but how do I avoid
> firefox accessing directly to the Internet.
>
> Every suggestion is welcomed.
>
> Thank you
> Kai W?stermann
>
>
>
>
> ------------------------------
>
> Message: 8
> Date: Sun, 11 Nov 2007 10:40:47 +0100
> From: Reiner Schmid <reischmid at gmx.de>
> Subject: Re: control of internet access
> To: Kai W?stermann <k.wuestermann at gmx.de>
> Cc: Edubuntu Community <edubuntu-users at lists.ubuntu.com>
> Message-ID: <4736CE1F.2070508 at gmx.de>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Kai W?stermann schrieb:
> > Moin!
> >
> > We are a primary school with children up the age of 10. So we need to
> > control the Internet access in edubuntu for the children.
> >
> > We want to...
> >
> > ... switch off the Internet for all the thin clients
> >
> > ... log the sites and pages a user retrieves
> >
> > ... use a blacklist for the children's Internet access
> >
> >
> >
> Hello Kai,
>
> use Dansguardian (http://dansguardian.org) for filtering
>
>
>
> or here
> http://www.christianubuntuukmirror.co.uk/ubuntuce/scripts/install_dansguardian_gui_feisty.tar.gz
>
> Here you will find a installation for a combination of a proxy
> (tinyproxy), a firewall (firehol) and a dansguardian gui. I use it ,too.
> It is for Feisty, but it is easy to fix for Gutsy.
>
> Reiner
>
>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Sun, 11 Nov 2007 12:55:19 +0200
> From: Asmo Koskinen <asmo.koskinen at arkki.info>
> Subject: Re: control of internet access
> To: Reiner Schmid <reischmid at gmx.de>
> Cc: Edubuntu Community <edubuntu-users at lists.ubuntu.com>
> Message-ID: <4736DF97.3040001 at arkki.info>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Reiner Schmid kirjoitti:
> > I use it ,too.
> > It is for Feisty, but it is easy to fix for Gutsy.
> >
>
> I do not use dansguardian (in our school is in fact firewall and proxy
> behind our gateway), but I think that if we need one (gateway, proxy,
> dansguardian, etc) it is much easier setup another server for that than
> setup working Edubuntu.
>
> Look for SME Server: http://wiki.contribs.org/SME_Server:Documentation
>
> "The fact that it serves as a "gateway" means it has separate interfaces
> with each network, and provides security and routing. "If you configure
> your server to operate in server and gateway mode, your server will
> require either:
>
> 1. two ethernet adapters (one to communicate with the local network and
> the other to communicate with the external network/Internet)"
>
> http://wiki.contribs.org/SME_Server:Documentation:Administration_Manual:Chapter5
>
>
> Why I think that way?
>
> If you already use Edubuntu with two NIC's, that way you don't have to
> mess up with Edubuntu server - you can leave all as it is in
> Edubuntu/LTSP environment. You just add one machine between your
> Edubuntu/LTSP server and real Internet.
>
>
> How much that need for another server?
>
> Very basic i586/686-machine do that. You do not need 3D-graphic card or
> something.
>
> "Version 7.0 of SME Server is based on CentOS 4.4 and uses the 2.6
> series Linux kernel."
>
> http://wiki.contribs.org/SME_Server:Documentation:Administration_Manual:Chapter4
>
> ---
>
> I have lots of howto's (both LTSP 4.2 and LTSP 5, in finnish) and next
> one will be Edubuntu 7.10 Classroom (two NICs) AND SME Server (two NICs)
> as Internet content filter.
>
> http://wiki.contribs.org/Dansguardian
>
> http://wiki.ubuntu-fi.org/LTSP_Ohjeita
>
> So thank you for asking ;-).
>
> Best Regards Asmo Koskinen.
>
>
>
> ------------------------------
>
> Message: 10
> Date: Sun, 11 Nov 2007 03:20:42 -0800 (PST)
> From: Charlie Dorff <cy41169 at yahoo.com>
> Subject: Is there Open source oftware available for PDAs?
> To: edubuntu-users at lists.ubuntu.com
> Message-ID: <990607.45783.qm at web58912.mail.re1.yahoo.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi...
> I was thinking about getting a PDA and I was wondering if anyone knew if there is open source software available for PDAs. Could you give me the website to down the open source software if it's available? Will open source soft work with any PDA? Thanks.
> Charlie
>
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