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| andrew_ | can someone help me think about server spec for a mixed thin / thick / Linux / Windows environment. We're likely to have 45 thin clients, 25 thick...how many and what speed of server do I need to run fileserver, DHCP, terminal server, and Windows...? | 04:08 |
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| andrew_ | can someone help me think about server spec for a mixed thin / thick / Linux / Windows environment. We're likely to have 45 thin clients, 25 thick...how many and what speed of server do I need to run fileserver, DHCP, terminal server, and Windows...? | 05:19 |
| Burgundavia | andrew_: got your LDAP server running? | 05:20 |
| andrew_ | I took an LDAP vacation this week and bought a bunch of books to get my grounding in Linux land before taking another swing at it. | 05:21 |
| Burgundavia | ok | 05:21 |
| Burgundavia | don't fear, you will conquer LDAP | 05:21 |
| andrew_ | The server is running fine...I just haven't succeeded in getting a client to authenticate against it... | 05:21 |
| andrew_ | I'm in a position to be buying equipment and I don't want to screw up... | 05:22 |
| andrew_ | So I'm looking for 2nd and 3rd opinions... | 05:22 |
| Burgundavia | ok | 05:23 |
| Burgundavia | what are you using for your thin clients? | 05:23 |
| andrew_ | A mix of donated P4s and whatever we decide to buy, new... | 05:23 |
| Burgundavia | wow, those are massively powered | 05:24 |
| andrew_ | Yes...lucky...should I just turn these into thin client servers? | 05:24 |
| andrew_ | We'll have roughly 20 of these... | 05:25 |
| andrew_ | but I want to reduce administration on the client side... | 05:25 |
| Burgundavia | hmm | 05:26 |
| Burgundavia | how many classrooms? | 05:26 |
| andrew_ | four | 05:26 |
| andrew_ | three, really, with one computer/study room | 05:27 |
| andrew_ | I want 12-15 thin clients in each classroom, with the ability to push in another 20 laptops (thick client) | 05:27 |
| andrew_ | I'm constrained to using Dell as the vendor, unless I can show that they don't carry what I need. | 05:29 |
| Burgundavia | right | 05:29 |
| Burgundavia | as for teh actual servers, you need to talk to sbalneav or somebody similar | 05:29 |
| andrew_ | He recommended 6-8GB of RAM for a single server running 45 clients...but as for processors, I can't tell. | 05:30 |
| andrew_ | I'm also a bit shaky on what I need to set up the dual Windows/Linux thin client environment I've seen in some of the case studies... | 05:31 |
| Burgundavia | you need one or several Windows servers, where the clients use seamless RDP to get an application from them | 05:32 |
| andrew_ | He recommended three servers: LTSP (Ram intensive), DNS/Filesever/Webserver (HD intensive), Windows (?) | 05:32 |
| Burgundavia | that makes sense | 05:32 |
| andrew_ | What hardware requirements would the Windows server have? | 05:33 |
| Burgundavia | have you been a sysadmin much before?' | 05:33 |
| andrew_ | No | 05:33 |
| Burgundavia | the requires of the windows server depend entirely on what you are running | 05:33 |
| Burgundavia | I suggest you collect a complete set of all applicatiosn you expect to be run | 05:33 |
| Burgundavia | the Windows ones | 05:33 |
| Burgundavia | then fire up a thin client and connect to a Windows computer | 05:34 |
| Burgundavia | monitor the RAM and network output on the windows machine | 05:34 |
| andrew_ | If I understand properly, the Xterminal is still running on the LTSP server even when the clients are accessing the Windows server, is this correct? | 05:34 |
| Burgundavia | the users would still be in an Ubuntu environment | 05:34 |
| Burgundavia | they would just be accessing a single program off the Windows side | 05:35 |
| Burgundavia | another way to do it is to do what whiprush does | 05:35 |
| Burgundavia | he has he machines dual boot | 05:35 |
| Burgundavia | Windows and LTSP thin client | 05:35 |
| andrew_ | That is preferable to me...I think. | 05:35 |
| andrew_ | How difficult is that to do? | 05:35 |
| Burgundavia | not hard | 05:36 |
| Burgundavia | for that you need a copy of windows on each computer | 05:36 |
| Burgundavia | and then hack grub to do a network boot, I think | 05:36 |
| Burgundavia | you need to ask whiprush (Jorge Castro) | 05:36 |
| andrew_ | So windows runs locally, not as an application server...? | 05:37 |
| Burgundavia | yes | 05:37 |
| Burgundavia | in that case, they are in a full windows environment and you need to deal with each windows install | 05:38 |
| Burgundavia | the advantage of an application server is that you minimize the number of windows instlals you have | 05:38 |
| andrew_ | This would make a true "thin client" machine impossible to use as a dual boot machine. | 05:38 |
| Burgundavia | yes | 05:38 |
| andrew_ | OK...I guess we can handle an emulator window... | 05:38 |
| Burgundavia | well, with seamless rdp, it is as if the appliation is running locally | 05:39 |
| Burgundavia | that is what is so brilliant | 05:39 |
| andrew_ | In any case, it sounds like the Windows application server doesn't need to be as resource intensive as the LTSP server, is this correct? | 05:39 |
| Burgundavia | that depends on the application being run | 05:40 |
| Burgundavia | you also need to consider that graphics-intensive stuff does very badly when run over the network | 05:40 |
| andrew_ | So streaming video = bad news...even with a blazing fast, 8MB RAM LTSP server? | 05:41 |
| Burgundavia | yes, because at that point, the bootleneck is not the server, it is the network itself | 05:41 |
| andrew_ | Even with gigabit connection between the server and the switch? | 05:42 |
| Burgundavia | for that, I would test | 05:42 |
| Burgundavia | gigabit might do for streaming, but more graphics intensive stuff like games would still choke, I imagine | 05:43 |
| Burgundavia | that is off the top of my head | 05:43 |
| andrew_ | I just need to know whether I need two $6000 servers to run Linux and Windows, or just one $6000 server and a smaller, say $2000 server to host windows apps...? | 05:44 |
| Burgundavia | like I said, I would figure out exactly which Windows apps you need to run and then take a look at their memory/cpu/network requirements | 05:44 |
| andrew_ | Now as for the fileserver, LDAP, DHCP, and webserver...would all of these live on the same machine? | 05:46 |
| andrew_ | A third machine, phsically separate from the LTSP and Windows machines? | 05:47 |
| Burgundavia | yes, if possibly | 05:47 |
| Burgundavia | possible, rather | 05:47 |
| Burgundavia | ldap/fileserver can share the same machine | 05:47 |
| andrew_ | and also host a website... | 05:48 |
| Burgundavia | you could repurpose one of yoru p4s for that | 05:48 |
| Burgundavia | I am very conservative with stuff like that | 05:48 |
| Burgundavia | I try and separate out the services as much as possible | 05:48 |
| Burgundavia | makes backup/recovery schemes easier | 05:49 |
| andrew_ | I want to give web users access to their LAN files | 05:49 |
| andrew_ | Does this necessitate fileserver and webserver sharing the same machine? | 05:50 |
| Burgundavia | nope | 05:51 |
| andrew_ | Here's where LDAP comes in, right? Single authentication point for all services... | 05:52 |
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| kjw75 | how come when I installed 7.04 I have no educational tools, but they were there in 6.06 and 6.10? | 05:52 |
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| andrew_ | How do you install seamless rdp? | 05:57 |
| Burgundavia | andrew_: yes, and NFS for single file point | 05:58 |
| Burgundavia | kjw75: there is a bug. You need to install them afterwards | 05:58 |
| kjw75 | Burgundavia: ah, ok thanks | 05:59 |
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| kjw75 | is there a synaptic package that will install the default educational programs that were supposed to come with 7.04? | 09:05 |
| jsgotangco | kjw75: try looking for edubuntu-desktop | 09:14 |
| kjw75 | edubuntu-desktop is already installed. When I installed 6.06 and 6.10 it installed a menu called Education with educational software. Now that I installed 7.04 this was not included. I was told this was a bug in the 7.04 installer. Just wondering if there's an easy way to install all these apps or if I have to just pick them all myself and install separately. | 09:20 |
| jsgotangco | oh | 09:21 |
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| cliebow | anyone have a hunch why i have som much trouble with gnome-settings-daemon?anyone else have accounts that barf? | 04:00 |
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| racter | hiyall - how can i change the login screen for my edubuntu thin clients? i made a theme and set it with gdmsetup but it's not appearing. | 08:02 |
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