Hello All, I was wondering if anyone new why a mandrake 10.0 dhcp server will boot a dell optiplex gx100, but my ubuntu dhcp3 server will not. Using LTSP of course.
Axely > -------- Original Message -------- > Subject: Ltsp-discuss Digest, Vol 2, Issue 18 > From: [EMAIL PROTECTED] > Date: Fri, July 14, 2006 8:06 am > To: [email protected] > > Send Ltsp-discuss mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > > You can reach the person managing the list at > [EMAIL PROTECTED] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Ltsp-discuss digest..." > > > Today's Topics: > > 1. Re: More detailed instructions & documentation needed for > LTSP implementation (Jim McQuillan) > 2. Re: pxe boot problem (Jim McQuillan) > 3. Re: pxe boot problem (Anselm Martin Hoffmeister) > 4. Re: full-fledged diskless workstation...how (H. Sami Sozuer) > 5. Re: pxe boot problem (Krishna Murphy) > 6. Re: More detailed instructions & documentation needed for > LTSP implementation ([EMAIL PROTECTED]) > 7. Re: full-fledged diskless workstation...how (Eric Thibodeau) > 8. Re: More detailed instructions & documentation needed for > LTSP implementation (Alfred) > 9. VMWARE as a test client server.... (Alfred) > 10. Re: VMWARE as a test client server.... (Jim McQuillan) > 11. Re: Gigabit Ethernet (Nadav Kavalerchik) > 12. Access to the sound resources on the server (David Nielson) > 13. Re: Volume control applet? (Scott Balneaves) > 14. Re: More detailed instructions & documentation needed for > LTSP implementation (Sudev Barar) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 13 Jul 2006 15:14:04 -0400 (EDT) > From: "Jim McQuillan" <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] More detailed instructions & documentation > needed for LTSP implementation > To: "Roj Jer" <[EMAIL PROTECTED]> > Cc: [email protected] > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain;charset=iso-8859-1 > > On Thu, July 13, 2006 2:42 pm, Roj Jer wrote: > > Words from yet another newbie... please be patient. > > > > Career Microsoft folks (like myself) wanting to move from the Microsoft > > community to the Open Source Linux community face enormous challenges when > > first arriving in the neighborhood. We don't understand the "lingo" or > > even > > where to go to find anything that looks vaguely familiar. > > > > I have been recruited to help design and implement a computer lab for a > > neighborhood private school (K-12). The largest factor was $$COST$$. They > > have a big need and a small budget. They've received a donation of 30+ > > 100Mhz Pentium PC's with 64Mb Ram, 1GB Hard Disk, and 10/100 Nics. The > > cost > > of implementing new "Dell's" was around $15,000... (way over budget). What > > is the budget? The least expensive method possible. So, my research has > > begun. I thought about Citrix on a Microsoft Server, but there were all of > > the licensing $$COST$$. So, I considered researching Open Source > > solutions. > > > > I got super pumped when I Googled "Open Source Linux Terminal Server" and > > the 2nd item was titled, "K12 Linux in Schools Project". I read all of the > > "Testimonials" and "Case Studies" and determined that this was a perfect > > match. > > > > I downloaded the *K12LTSP 4.4.1 - Install CD-ROMs* and commenced to > > installing it on a donated 1.4GHz AMD PC with 4GB of RAM. I emulated an > > Ethernet bootrom on the client PC's by booting from a floppy disk created > > from the http://www.Rom-O-Matic.net <http://www.rom-o-matic.net/> site. > > Within an hour after having the LTSP server online, I had 3 of the 100MHz > > Pentium PC's connected and working. > > > > Super! Great! But that seems to be where the Magic ends. > > > > And now the point! > > > > In the Windows world it is easy to configure the "All Users" Start Menu > > (C:\Documents and Settings\All Users\Start Menu), or customize a Start > > Menu > > for a particular user. You can customize the Default User environment > > (local > > machine) as a template for subsequent new users. > > When incorporating Citrix into the Mix, you can install software on the > > Citrix server and "Publish" the application for a particular user or > > group. > > > > My questions: > > > > 1) How / Where do you configure LTSP to segregate "Teachers" from > > "Students", "3rd Grade" from "12th Grade", so that each "group" gets the > > appropriate desktop and program menu respective to their roles in the > > school? A 3rd Grader does not need the same applications, shortcuts, etc > > as > > a 12th Grader. > > That's not really an LTSP question. That's a Linux administration > question. LTSP is simply the operating system that runs on the thin > clients, to allow the client to connect to the server. We really don't > get involved with what you do on the server, and what the different types > of users are. > > > > > > 2) What are other schools using for URL filtering and Surf Control to keep > > students from "stumbling" across Porn Sites or any other topic deemed > > "inappropriate"? > > > That's an excellent question for the k12osn mailing list: > > https://listman.redhat.com/mailman/listinfo/k12osn > > While there are probably lots of educators here on the ltsp-discuss > mailing list, I think you'll find more of what you are looking for on the > k12osn list. > > Other places to get help are the k12os website: > > http://www.k12os.org/ > > The LTSP IRC channel: > > #ltsp on irc.freenode.net > > The LTSP wiki: > > http://wiki.ltsp.org > > And there's various people out there willing to provide professional > services based on ltsp and k12ltsp. > > I hope that helps, > > Jim McQuillan > [EMAIL PROTECTED] > > > > > > Thanks for your patience. > > > > RJ > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job > > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _____________________________________________________________________ > > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > > > > > > ------------------------------ > > Message: 2 > Date: Thu, 13 Jul 2006 15:44:18 -0400 (EDT) > From: "Jim McQuillan" <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] pxe boot problem > To: "Metal Gear" <[EMAIL PROTECTED]> > Cc: [email protected] > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain;charset=iso-8859-1 > > On Thu, July 13, 2006 3:37 am, Metal Gear wrote: > > hi all, > > i am trying to boot a workstation using PXE. I am facing a strange > > problem, > > follwoing is my dhcpd.conf > > > > ###############################################33 > > # dhcpd.conf > > > > ddns-update-style ad-hoc; > > > > option subnet-mask 255.255.255.0; > > option broadcast-address 192.168.1.255; > > option routers 192.168.1.240; > > #option domain-name-servers 192.168.1.240; > > #option domain-name "webtech"; # You really should fix this > > option option-128 code 128 = string; > > option option-129 code 129 = text; > > > > > > get-lease-hostnames true; > > > > next-server 192.168.1.240; > > option root-path "192.168.1.240:/opt/ltsp/i386"; > > > > subnet 192.168.1.0 netmask 255.255.255.0 { > > range 192.168.1.241 192.168.1.245; > > } > > > > host ws241 { > > hardware ethernet 00:01:03:e2:19:ea; > > fixed-address 192.168.1.241; > > filename "/lts/vmlinuz-2.6.16.1-ltsp-2"; > > > > } > > > > host ws246 { > > hardware ethernet 00:01:03:e9:4e:88; > > fixed-address 192.168.1.246; > > filename "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe"; > > #filename "/lts/2.6.16.1-ltsp-2/pxelinux.0"; > > } > > > > ######################################################## > > when i try to use only 'filename "/lts/2.6.16.1-ltsp-2/pxelinux.0";' only > > then thin client hangs on "uncompressing the linux...." and when i try to > > use 'filename "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe' then thin client > > constantly emits debugging messages. In then end i have to use 'filename > > "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe' and then restart my dhcp > > service > > at that point thin client is constatly emitting messages and does no load > > gnome. In the second step i uncomment the line 'filename > > "/lts/2.6.16.1-ltsp-2/pxelinux.0' eventually the thin client goes into > > gnome. I am using 3 com 3C905-TX-M card. > > Any help would be appreciated, > > > You say that if you use: > > filename "/lts/2.6.16.1-ltsp-2/pxelinux.0"; > > It eventually gets to Gnome. > > So, what's the problem? It sounds like it's working fine. > > Jim McQuillan > [EMAIL PROTECTED] > > > > > > > ------------------------------ > > Message: 3 > Date: Thu, 13 Jul 2006 23:11:07 +0200 > From: Anselm Martin Hoffmeister <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] pxe boot problem > To: Metal Gear <[EMAIL PROTECTED]> > Cc: [email protected] > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain > > Am Donnerstag, den 13.07.2006, 12:37 +0500 schrieb Metal Gear: > > hi all, > > i am trying to boot a workstation using PXE. I am facing a strange > > problem, follwoing is my dhcpd.conf > > > ######################################################## > > when i try to use only 'filename "/lts/2.6.16.1-ltsp-2/pxelinux.0";' > > only then thin client hangs on "uncompressing the linux...." and when > > i try to use 'filename "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe' then > > thin client constantly emits debugging messages. In then end i have to > > use 'filename "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe' and then > > restart my dhcp service at that point thin client is constatly > > emitting messages and does no load gnome. In the second step i > > uncomment the line 'filename "/lts/2.6.16.1-ltsp-2/pxelinux.0' > > eventually the thin client goes into gnome. I am using 3 com > > 3C905-TX-M card. > > Any help would be appreciated, > > This sounds as if the PXE implementation on your 3com card is broken, > and will not execute "pxelinux". It will run Etherboot though, which in > turn is able to run pxelinux, weird enough. > > My first advice is to get rid of the 3com boot loader on that 3c905 - > those boards iirc have a flash memory on it that can be reprogrammed > in-situ, with appropriate software (probably available from 3com). Get > Etherboot (in .zrom format) and burn it into that chip, which should you > get rid of that problem. > > If that is not possible, a bit of DHCP magic should do the trick. Every > client software should send a "client identifier" string when requesting > an address. Find out what 3com and Etherboot send (ethereal is your > friend). Use the trick described in > http://www.ltsp.org/documentation/pxe.howto.html > and set that if-else-statement (about three screens worth of text down > that document) to refer to pxelinux.0 and the etherboot....zpxe file, > respectively. > > Sorry I'm too lazy to write that down, time to get some sleep. Ask back > if you don't work all that out yourself. > > Hth > Anselm > > > > ------------------------------ > > Message: 4 > Date: Fri, 14 Jul 2006 01:16:58 +0300 > From: "H. Sami Sozuer" <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] full-fledged diskless workstation...how > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-9; format=flowed > > Ken Cobler wrote: > > H. Sami Sozuer wrote: > >> Hi folks, > >> > >> We have a 20-node cluster that we want to use both as diskless > >> workstations > >> that connect to a dual Xeon machine as X terminals and as nodes of > >> our cluster > >> that can run MPI programs. We've installed the ltsp > >> server on a FC5 and tried out a client and there is no problem, the > >> client > >> gets the gdm login window and can run programs on the server. However, > >> since we also need to run MPI programs via ssh on the nodes, we need > >> to have > >> a lot of the standard gcc, glibc, MPI etc on each node. The basic > >> ltsp filesystem > >> in /opt/ltsp/i386 is very insufficient for this job and simply > >> copying files from /lib /bin /usr > >> etc onto the clients' / directory seems, ... well just not right. Has > >> anyone tackled a problem > >> of this sort before? What is the best way to go about installing > >> these programs on the client > >> filesystem? I can ssh to the diskless clients, no problem there. > >> > >> Thanks for any pointers > >> Sami > >> > >> PS. The reason we don't want to use the hard disks of the clients is > >> because of the frequent > >> power outages. We can maintain continuous power the server which > >> houses the hard disks but > >> with 20 machines it's just not feasible. > >> > > I don't know what MPI is, however, the concept behind LTSP is Terminal > > Services. Which means a Linux server can host and run many > > applications for many terminals. So, by running the application on > > the client, you are defeating the purpose of having a terminal > > server. Run the application on the server and have the output go to > > the client terminal. > > > > If you are implying that MPI is a CUI based program which requires you > > to ssh into the server, then so be it. If you are looking for better > > terminal emulation, you can get putty (a popular Windows based > > terminal emulation program) in source code for Linux to compile for > > your machine. > > > > Perhaps you can explain MPI and it's features or limitations, and why > > you wouldn't want it to run on the server only. > > > > Ken Cobler > Ken, > > MPI stands for Message Passing Interface and it's the most popular way > of running > parallel programs on many machines. So MPI itself is not a program but a > means for > programs running on many nodes of a cluster to communicate and work on a > single job. > What we have is a student computer lab that gets used for about 10 hours > a week, and in terms > of CPU usage, the yearly average would probably be less than 0.1 per > cent! Imagine all those > > CPUs just sitting idly for nearly their entire lifetime. > So what we thought would be smart was to have each machine connect to a > server, LTSP style, > and use the CPU resources of the server, while we wanted to run number > crunching applications > on the CPUs of each individual node (3GHz P4 Prescott). The server alone > is just too inadequate for > the number crunching jobs we have. The problem was that the programs > installed on the client > nodes' filesystem was too inadequate, and it was very difficult to > install programs on the server > when you chroot /opt/ltsp/i386 and try the configure&&make&&make install > routine. > But I tried copying the files by hand and it looks like maybe it will be > possible to get things working > anyhow. > > I like ltsp because of the local device support, and NFS swapping and so > on. Of course it wasn't > designed for using a student computer lab as a HPC cluster, but with the > current speed of processors > and the prices of GigE switches, I have a feeling there will be more > people trying to build this > type of "dual use" labs in the near future. > > > Sami > > > > > ------------------------------ > > Message: 5 > Date: Thu, 13 Jul 2006 18:49:26 -0400 (EDT) > From: Krishna Murphy <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] pxe boot problem > To: Jim McQuillan <[EMAIL PROTECTED]> > Cc: Metal Gear <[EMAIL PROTECTED]>, > [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: TEXT/PLAIN; charset=US-ASCII > > Metal Gear- > > I see "get-lease-hostnames" in there, along with MAC addresses and fixed > IP addresses being assigned to those particular machines. I think you > might want to try "use-host-decl-names" - which is not compatible with > "get-lease-hostnames", from what I've seen on the wiki. > > -Krishna > > > On Thu, July 13, 2006 3:37 am, Metal Gear wrote: > > hi all, > > i am trying to boot a workstation using PXE. I am facing a strange > > problem, > > follwoing is my dhcpd.conf > > > > ###############################################33 > > # dhcpd.conf > > > > ddns-update-style ad-hoc; > > > > option subnet-mask 255.255.255.0; > > option broadcast-address 192.168.1.255; > > option routers 192.168.1.240; > > #option domain-name-servers 192.168.1.240; > > #option domain-name "webtech"; # You really should fix this > > option option-128 code 128 = string; > > option option-129 code 129 = text; > > > > > > get-lease-hostnames true; > > > > next-server 192.168.1.240; > > option root-path "192.168.1.240:/opt/ltsp/i386"; > > > > subnet 192.168.1.0 netmask 255.255.255.0 { > > range 192.168.1.241 192.168.1.245; > > } > > > > host ws241 { > > hardware ethernet 00:01:03:e2:19:ea; > > fixed-address 192.168.1.241; > > filename "/lts/vmlinuz-2.6.16.1-ltsp-2"; > > > > } > > > > host ws246 { > > hardware ethernet 00:01:03:e9:4e:88; > > fixed-address 192.168.1.246; > > filename "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe"; > > #filename "/lts/2.6.16.1-ltsp-2/pxelinux.0"; > > } > > > > ######################################################## > > when i try to use only 'filename "/lts/2.6.16.1-ltsp-2/pxelinux.0";' only > > then thin client hangs on "uncompressing the linux...." and when i try to > > use 'filename "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe' then thin client > > constantly emits debugging messages. In then end i have to use 'filename > > "/lts/2.6.16.1-ltsp-2/eb-5.4.2-3c90x.zpxe' and then restart my dhcp > > service > > at that point thin client is constatly emitting messages and does no load > > gnome. In the second step i uncomment the line 'filename > > "/lts/2.6.16.1-ltsp-2/pxelinux.0' eventually the thin client goes into > > gnome. I am using 3 com 3C905-TX-M card. > > Any help would be appreciated, > > > You say that if you use: > > filename "/lts/2.6.16.1-ltsp-2/pxelinux.0"; > > It eventually gets to Gnome. > > So, what's the problem? It sounds like it's working fine. > > Jim McQuillan > [EMAIL PROTECTED] > > > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _____________________________________________________________________ > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > > ------------------------------ > > Message: 6 > Date: Fri, 14 Jul 2006 09:41:19 +0800 > From: [EMAIL PROTECTED] > Subject: Re: [Ltsp-discuss] More detailed instructions & documentation > needed for LTSP implementation > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-1" > > On Friday 14 July 2006 02:46, [EMAIL PROTECTED] > wrote: > > Words from yet another newbie... please be patient. > > > > Career Microsoft folks (like myself) wanting to move from the Microsoft > > community to the Open Source Linux community face enormous challenges when > > first arriving in the neighborhood. We don't understand the "lingo" or even > > where to go to find anything that looks vaguely familiar. > > > > I have been recruited to help design and implement a computer lab for a > > neighborhood private school (K-12). The largest factor was $$COST$$. They > > have a big need and a small budget. They've received a donation of 30+ > > 100Mhz Pentium PC's with 64Mb Ram, 1GB Hard Disk, and 10/100 Nics. The cost > > of implementing new "Dell's" was around $15,000... (way over budget). What > > is the budget? The least expensive method possible. So, my research has > > begun. I thought about Citrix on a Microsoft Server, but there were all of > > the licensing $$COST$$. So, I considered researching Open Source solutions. > > > > I got super pumped when I Googled "Open Source Linux Terminal Server" and > > the 2nd item was titled, "K12 Linux in Schools Project". I read all of the > > "Testimonials" and "Case Studies" and determined that this was a perfect > > match. > > > > I downloaded the *K12LTSP 4.4.1 - Install CD-ROMs* and commenced to > > installing it on a donated 1.4GHz AMD PC with 4GB of RAM. I emulated an > > Ethernet bootrom on the client PC's by booting from a floppy disk created > > from the http://www.Rom-O-Matic.net <http://www.rom-o-matic.net/> site. > > Within an hour after having the LTSP server online, I had 3 of the 100MHz > > Pentium PC's connected and working. > > > > Super! Great! But that seems to be where the Magic ends. > > > > And now the point! > > > > In the Windows world it is easy to configure the "All Users" Start Menu > > (C:\Documents and Settings\All Users\Start Menu), or customize a Start Menu > > for a particular user. You can customize the Default User environment > > (local machine) as a template for subsequent new users. > > When incorporating Citrix into the Mix, you can install software on the > > Citrix server and "Publish" the application for a particular user or group. > > > > My questions: > > > > 1) How / Where do you configure LTSP to segregate "Teachers" from > > "Students", "3rd Grade" from "12th Grade", so that each "group" gets the > > appropriate desktop and program menu respective to their roles in the > > school? A 3rd Grader does not need the same applications, shortcuts, etc as > > a 12th Grader. > > > > 2) What are other schools using for URL filtering and Surf Control to keep > > students from "stumbling" across Porn Sites or any other topic deemed > > "inappropriate"? > > > > Thanks for your patience. > > I guess the most noticeable difference between MS and 'linux' in whatever > form > is Winders says 'do it my way, the one true way, the only way' linux says > 'you choose'. > > I would ask 1 question, collect the answers, take a small step forward. > > So > How do you implement groups and privileges: (I don't know what k12 do, it may > be more clever than this) > > By who the login person is (modern programs and desktops make multiple logins > of the same name rather iffy, even though it would be helpful here) > > login privilege > -------------+-------------------- > rm23 all > r231 pupils in room 23 > r232 same password for > r233 for whole class > > rm24 all > r241 pupils in room 24 > etc > > rm3 all > r31 pupils in room 3 > -------------+------------------- > > The implementation depends on your other choices, and I would also consider > how others did it. At the moment your needs are such that just about any > answer is a right answer. I think k12 have narrowed the scope somewhat. > > James > > > > ------------------------------ > > Message: 7 > Date: Thu, 13 Jul 2006 19:50:22 -0700 (PDT) > From: Eric Thibodeau <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] full-fledged diskless workstation...how > To: "H. Sami Sozuer" <[EMAIL PROTECTED]> > Cc: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: TEXT/PLAIN; charset=US-ASCII > > Hi Sami, > You might want to take a look at some of my scratch notes on > building nodes for a clustering environment, inspired by LTSP: > http://wiki.neuralbs.com/index.php/Installing_Gentoo_... > Be warned, you will have a hard time finding a diskless solution for both > clustering _and_ LTSP-ish use...this is why I am fiddling with Gentoo and, > eventually, apply project MueCow to it so we can (easily) have hybrids.. > > Eric > > On Fri, 14 Jul 2006, H. Sami Sozuer wrote: > > > Ken Cobler wrote: > > > H. Sami Sozuer wrote: > > >> Hi folks, > > >> > > >> We have a 20-node cluster that we want to use both as diskless > > >> workstations > > >> that connect to a dual Xeon machine as X terminals and as nodes of > > >> our cluster > > >> that can run MPI programs. We've installed the ltsp > > >> server on a FC5 and tried out a client and there is no problem, the > > >> client > > >> gets the gdm login window and can run programs on the server. However, > > >> since we also need to run MPI programs via ssh on the nodes, we need > > >> to have > > >> a lot of the standard gcc, glibc, MPI etc on each node. The basic > > >> ltsp filesystem > > >> in /opt/ltsp/i386 is very insufficient for this job and simply > > >> copying files from /lib /bin /usr > > >> etc onto the clients' / directory seems, ... well just not right. Has > > >> anyone tackled a problem > > >> of this sort before? What is the best way to go about installing > > >> these programs on the client > > >> filesystem? I can ssh to the diskless clients, no problem there. > > >> > > >> Thanks for any pointers > > >> Sami > > >> > > >> PS. The reason we don't want to use the hard disks of the clients is > > >> because of the frequent > > >> power outages. We can maintain continuous power the server which > > >> houses the hard disks but > > >> with 20 machines it's just not feasible. > > >> > > > I don't know what MPI is, however, the concept behind LTSP is Terminal > > > Services. Which means a Linux server can host and run many > > > applications for many terminals. So, by running the application on > > > the client, you are defeating the purpose of having a terminal > > > server. Run the application on the server and have the output go to > > > the client terminal. > > > > > > If you are implying that MPI is a CUI based program which requires you > > > to ssh into the server, then so be it. If you are looking for better > > > terminal emulation, you can get putty (a popular Windows based > > > terminal emulation program) in source code for Linux to compile for > > > your machine. > > > > > > Perhaps you can explain MPI and it's features or limitations, and why > > > you wouldn't want it to run on the server only. > > > > > > Ken Cobler > > Ken, > > > > MPI stands for Message Passing Interface and it's the most popular way > > of running > > parallel programs on many machines. So MPI itself is not a program but a > > means for > > programs running on many nodes of a cluster to communicate and work on a > > single job. > > What we have is a student computer lab that gets used for about 10 hours > > a week, and in terms > > of CPU usage, the yearly average would probably be less than 0.1 per > > cent! Imagine all those > > > > CPUs just sitting idly for nearly their entire lifetime. > > So what we thought would be smart was to have each machine connect to a > > server, LTSP style, > > and use the CPU resources of the server, while we wanted to run number > > crunching applications > > on the CPUs of each individual node (3GHz P4 Prescott). The server alone > > is just too inadequate for > > the number crunching jobs we have. The problem was that the programs > > installed on the client > > nodes' filesystem was too inadequate, and it was very difficult to > > install programs on the server > > when you chroot /opt/ltsp/i386 and try the configure&&make&&make install > > routine. > > But I tried copying the files by hand and it looks like maybe it will be > > possible to get things working > > anyhow. > > > > I like ltsp because of the local device support, and NFS swapping and so > > on. Of course it wasn't > > designed for using a student computer lab as a HPC cluster, but with the > > current speed of processors > > and the prices of GigE switches, I have a feeling there will be more > > people trying to build this > > type of "dual use" labs in the near future. > > > > > > Sami > > > > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job > > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _____________________________________________________________________ > > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > > > > > ------------------------------ > > Message: 8 > Date: Fri, 14 Jul 2006 06:34:02 -0400 > From: Alfred <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] More detailed instructions & documentation > needed for LTSP implementation > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="utf-8" > > First I would need to know what desktop you want to use. > If you use gnome or kde which are good for teachers then there are tools and > ways to configure once for all. > If you use xfce for kids or icewm then again as above but different. > None are too hard and once you get them and make the right scripts it is easy. > Let me know what desktop you plan to use. > > On Thursday 13 July 2006 14:42, Roj Jer wrote: > > Words from yet another newbie... please be patient. > > > > Career Microsoft folks (like myself) wanting to move from the Microsoft > > community to the Open Source Linux community face enormous challenges when > > first arriving in the neighborhood. We don't understand the "lingo" or even > > where to go to find anything that looks vaguely familiar. > > > > I have been recruited to help design and implement a computer lab for a > > neighborhood private school (K-12). The largest factor was $$COST$$. They > > have a big need and a small budget. They've received a donation of 30+ > > 100Mhz Pentium PC's with 64Mb Ram, 1GB Hard Disk, and 10/100 Nics. The cost > > of implementing new "Dell's" was around $15,000... (way over budget). What > > is the budget? The least expensive method possible. So, my research has > > begun. I thought about Citrix on a Microsoft Server, but there were all of > > the licensing $$COST$$. So, I considered researching Open Source solutions. > > > > I got super pumped when I Googled "Open Source Linux Terminal Server" and > > the 2nd item was titled, "K12 Linux in Schools Project". I read all of the > > "Testimonials" and "Case Studies" and determined that this was a perfect > > match. > > > > I downloaded the *K12LTSP 4.4.1 - Install CD-ROMs* and commenced to > > installing it on a donated 1.4GHz AMD PC with 4GB of RAM. I emulated an > > Ethernet bootrom on the client PC's by booting from a floppy disk created > > from the http://www.Rom-O-Matic.net <http://www.rom-o-matic.net/> site. > > Within an hour after having the LTSP server online, I had 3 of the 100MHz > > Pentium PC's connected and working. > > > > Super! Great! But that seems to be where the Magic ends. > > > > And now the point! > > > > In the Windows world it is easy to configure the "All Users" Start Menu > > (C:\Documents and Settings\All Users\Start Menu), or customize a Start Menu > > for a particular user. You can customize the Default User environment > > (local machine) as a template for subsequent new users. > > When incorporating Citrix into the Mix, you can install software on the > > Citrix server and "Publish" the application for a particular user or group. > > > > My questions: > > > > 1) How / Where do you configure LTSP to segregate "Teachers" from > > "Students", "3rd Grade" from "12th Grade", so that each "group" gets the > > appropriate desktop and program menu respective to their roles in the > > school? A 3rd Grader does not need the same applications, shortcuts, etc as > > a 12th Grader. > > > > 2) What are other schools using for URL filtering and Surf Control to keep > > students from "stumbling" across Porn Sites or any other topic deemed > > "inappropriate"? > > > > Thanks for your patience. > > > > RJ > > -- > Alfred Nutile > Alternative Sustainable Technology Solutions > [EMAIL PROTECTED] > http://yurtboy.gotdns.com > "Spend your money on training not software and new computers" Socrates > > > > ------------------------------ > > Message: 9 > Date: Fri, 14 Jul 2006 09:41:29 -0400 > From: Alfred <[EMAIL PROTECTED]> > Subject: [Ltsp-discuss] VMWARE as a test client server.... > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="us-ascii" > > Accidental discovery. > I ran a ltsp client in vmware which was nice since I did not need another > computer to test the server. > > I downloaded the free vmware SERVER > then installed it and started a windows session using it's defaults. YOU DO > NOT NEED WINDOWS FOR THIS. > When VMware passes it's bios screen I pressed f12 for a network boot. > That found the dhcp server (in this case as server on my network but it could > have been the same machine I was running vmware on)and started a client. > Saves one computer when testing. > -- > Alfred Nutile > Alternative Sustainable Technology Solutions > [EMAIL PROTECTED] > http://yurtboy.gotdns.com > "Spend your money on training not software and new computers" > > > > ------------------------------ > > Message: 10 > Date: Fri, 14 Jul 2006 10:09:09 -0400 (EDT) > From: "Jim McQuillan" <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] VMWARE as a test client server.... > To: "Alfred" <[EMAIL PROTECTED]> > Cc: [email protected] > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain;charset=iso-8859-1 > > On Fri, July 14, 2006 9:41 am, Alfred wrote: > > Accidental discovery. > > I ran a ltsp client in vmware which was nice since I did not need another > > computer to test the server. > > > > I downloaded the free vmware SERVER > > then installed it and started a windows session using it's defaults. YOU > > DO > > NOT NEED WINDOWS FOR THIS. > > When VMware passes it's bios screen I pressed f12 for a network boot. > > That found the dhcp server (in this case as server on my network but it > > could > > have been the same machine I was running vmware on)and started a client. > > Saves one computer when testing. > > Ah, you've stumbled onto my testing environment. I've been booting > virtual LTSP clients in VMware for a long time. It's so much easier than > bringing a thin client and monitor onto an airplane and doing LTSP > development while flying at 33,000 feet over the Atlantic ocean :) > > Jim. > > > > -- > > Alfred Nutile > > Alternative Sustainable Technology Solutions > > [EMAIL PROTECTED] > > http://yurtboy.gotdns.com > > "Spend your money on training not software and new computers" > > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job > > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _____________________________________________________________________ > > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > > > > > > ------------------------------ > > Message: 11 > Date: Fri, 14 Jul 2006 17:39:00 +0300 > From: Nadav Kavalerchik <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] Gigabit Ethernet > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=iso-8859-8-i > > On Friday 07 July 2006 09:59, Donny Christiaan wrote: > > Dear Nadav, > > > > What kind of Gigabit Ethernet and Gigabit Switch do you use? > > May I know the brand & type? > > i'm using Dynamode 24 port (100M/10M) with 2 ports (1G). > ( the switch: http://www.dynamode.net/giga_switches/SW24002G.htm ) > > all 24 terminals use rtl8139 100M + boot rom . > > excellent performance !!! > > > > > Best Regards, > > Donny Christiaan. > > > > Nadav Kavalerchik wrote: > > > this is what we use on our installations and it works beautifully ! > > > > > > On Friday 07 July 2006 06:58, Steve Cayford wrote: > > >> You'll find a little overview here: > > >> > > >> http://wiki.ltsp.org/twiki/bin/view/Ltsp/ServerSizing#10mbit_100mbit_Gig > > >>abi t > > >> > > >> It recommends gigabit from the server to the switch, while 100Mb is > > >> sufficient from the switch to clients. But, of course, it depends on > > >> your load and usage patterns, too. > > >> > > >> -Steve > > >> > > >> p.s. I am not an "expert", though. > > >> > > >> Donny Christiaan wrote: > > >>> Dear Expert, > > >>> > > >>> I would like to use Gigabit Ethernet on my LTSP Server. > > >>> Before I do that, I need some information about Gigabit. > > >>> > > >>> Is it good for me to use Gigabit Ethernet instead of 10/100 Ethernet? > > >>> Could anybody give me a good reason why should i change to Gigabit > > >>> Ethernet? > > >>> > > >>> Thank you. > > >>> Donny Christiaan. > > > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job > > easier Download IBM WebSphere Application Server v.1.0.1 based on Apache > > Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _____________________________________________________________________ > > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > > ------------------------------ > > Message: 12 > Date: Fri, 14 Jul 2006 08:49:03 -0600 > From: David Nielson <[EMAIL PROTECTED]> > Subject: [Ltsp-discuss] Access to the sound resources on the server > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Quoth the Wiki: > > "The problem is that normally applications run on the LTSP Server, and > when they want to send audio, they write to |/dev/dsp| (OSS). The > typical result is that the sounds come out of the speakers attached to > the server (if the server has a soundcard and speakers)." > > I can see that for almost all installations, this would be useless > behavior, but this is exactly what I want to have happen. The last time > I installed LTSP on my sound server, this is exactly the behavior I > wanted, however, I installed it yesterday, and while sound works on the > server itself if I plug a keyboard, monitor and mouse into it, I can't > find a way to get to it remotely. (Either by booting into it from the > network, or "ssh -Y", the programs I use can't see that there's even a > soundcard installed. /dev/dsp is missing; hw:0 is missing; etc.) > > The options listed on the Wiki sound page > (http://wiki.ltsp.org/twiki/bin/view/Ltsp/Sound) are all absent from my > lts.conf file. It seems to me that it should be working the way I want > it to, but it's not. Is there anything I can do to restore the > server-sound-access behavior that was present before? > > -David > > PS - for those curious about what I'm doing, I've got a small recording > studio based around a monster server with an RME HDSP 9652 card. The > optical inputs and outputs make it easy to distribute sound throughout > the whole studio, both inputs and outputs, by running two very small > cables to each room and then placing a set of A/D and D/A converters at > the end of that cable. The idea is to have any of the silent terminals > in the rooms be able to log in and configure the hardware mixer to > distribute sound through the studio. Clever, eh? If it will work, that is. > > > > ------------------------------ > > Message: 13 > Date: Fri, 14 Jul 2006 09:57:21 -0500 > From: Scott Balneaves <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] Volume control applet? > To: [email protected] > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=us-ascii > > On Thu, Jul 13, 2006 at 04:25:04PM +0200, Abri le Roux wrote: > > Hi there, > > > > I was wondering if anyone knows of a volume control applet that can be > > used to control the volume of ESD? Currently I can control volume in > > some of the applications themselves (such as Rhytmbox and Totem), but > > it would be nice to have a real volume applet that understands ESD :) > > The problem is, ESD itself can't set volumes: it's not in the protocol. > That's why LTSP developers are now looking to move over to a > fuller-fledged sound server solution like Polyp/Pulseaudio, or MAS. > > Scott > > -- > Scott L. Balneaves | "Looking beyond the embers of bridges glowing behind us > Systems Department | To a glimpse of how green it was on the other side..." > Legal Aid Manitoba | -- Pink Floyd "High Hopes" > > > > ------------------------------ > > Message: 14 > Date: Fri, 14 Jul 2006 20:36:22 +0530 > From: "Sudev Barar" <[EMAIL PROTECTED]> > Subject: Re: [Ltsp-discuss] More detailed instructions & documentation > needed for LTSP implementation > To: [email protected] > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 14/07/06, Roj Jer <[EMAIL PROTECTED]> wrote: > > > > Words from yet another newbie... please be patient. > > Welcome to the good times. > > > Career Microsoft folks (like myself) wanting to move from the Microsoft > > community to the Open Source Linux community face enormous challenges when > > first arriving in the neighborhood. We don't understand the "lingo" or even > > where to go to find anything that looks vaguely familiar. > [SNIP] > > Let me say upfront...you can not get by dipping just your toes in the > pool of Linux. You will have to be prepared for more than wetting your > toes....wade right in. I know many from Doze world are > (ummmmm....dozing?) unprepared but once they find their feet they are > happy swimmers who do not ever want to come out! > > Be prepared to read / google a lot but the all this will give you > control that is mind blowing. Also join a few more mailing lists. > > [SNIPPED THE MAGIC PART] > > Super! Great! But that seems to be where the Magic ends. > > > > And now the point! > > > > In the Windows world it is easy to configure the "All Users" Start Menu > > (C:\Documents and Settings\All Users\Start Menu), or customize a Start Menu > > for a particular user. You can customize the Default User environment (local > > machine) as a template for subsequent new users. > > When incorporating Citrix into the Mix, you can install software on the > > Citrix server and "Publish" the application for a particular user or group. > > In Linux world you can do the similar by making the setup for first > user then copying his files to /etc/skel directory. Subsequent users > will get the same set up. Interesting point here would be to set up > using multiple skel directories. Guru's peeping in can contribute > here. > > > 1) How / Where do you configure LTSP to segregate "Teachers" from > > "Students", "3rd Grade" from "12th Grade", so that each "group" gets the > > appropriate desktop and program menu respective to their roles in the > > school? A 3rd Grader does not need the same applications, shortcuts, etc as > > a 12th Grader. > > Choosing a good window (GUI) manager here can really be important. > Look up IceWM instead of Gnome (or even consider Xfce). Set up > different menus for icewm and based on the home path > (/home/5th/student and /home/6th/student etc...) these menus can be > picked up to offer specific menus for specific classes. But boss..your > will have to work on learning how a particular GUI manager is fired up > and to modify scripts attached to the process to recognise the path. > Do not worry it is less complicated than it sounds. > > > 2) What are other schools using for URL filtering and Surf Control to keep > > students from "stumbling" across Porn Sites or any other topic deemed > > "inappropriate"? > > > > Read through k12ltsp mailing list and look up squid dansgaurd > blacklists access controls etc. > > > Thanks for your patience. > > You saved upfront $$$$ but your investment of time will be showing you > even better ROI as you get along. > > Lastly I would say that unlike Doze's you would get lots and lots of > support on lists and internet abounds with wikis and howto's. > -- > Regards, > Sudev Barar > > > > ------------------------------ > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > > ------------------------------ > > _____________________________________________________________________ > Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: > https://lists.sourceforge.net/lists/listinfo/ltsp-discuss > For additional LTSP help, try #ltsp channel on irc.freenode.net > > > End of Ltsp-discuss Digest, Vol 2, Issue 18 > ******************************************* ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
