Re: [Ltsp-discuss] About more than one dhcpd-servers
Denis Cardon kirjoitti: actually you can just use the windows dhcp server as your one and only dhcp server and populate the ltsp specific info into it (cf. https://help.ubuntu.com/community/UbuntuLTSP/LTSPWindowsDHCP). It is not very complicated and works fine, it just feels a little weird :-) My test went all other way well - only Windows-dhcp-server confused my little TC :-) We are going to try your suggestion later today, when Windows-people are at home. More news tomorrow :-) PS. Beware of little bit broken(?) switches (SMC-EZ6516TX ) on your office table and how to connect cables - I first was confused by pinging router - no luck. Then I changed switch to another one and everything worked out like nothing, expect that Windows-dhcp-server episode. Best Regrads Asmo Koskinen. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
Re: [Ltsp-discuss] About more than one dhcpd-servers
Denis Cardon kirjoitti: It is not very complicated and works fine, it just feels a little weird :-) Wait a minute - this is more weird :-) Old server (Ubuntu 6.06 x86_32 + LTSP 4.2) has two files to tweak: http://www.arkki.info/howto/Wiki/LTSP-Kokkola/dhcpd.conf.txt http://www.arkki.info/howto/Wiki/LTSP-Kokkola/lts.conf.txt New server (Edubuntu 7.10 Classroom Server x86_64) has none files to tweak! If you got new/good enough thin clients there is really nothing to do. Awesome! In the mixed office environment simplest way is let Windows-server do the dirty work because it does that anyway for the XP clients. Then there is nothing to do with Edubuntu-server - no dhcpd.conf and no lts.conf. Best Regards Asmo Koskinen. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
[Ltsp-discuss] About more than one dhcpd-servers
Well, I'm going add new server on my office tomorrow. Old one is 32-bit Ubuntu 6.06, new one is 64-bit Edubuntu 7.10. And machine itself is quite upgraded - from P4/1G to Duo Core Xeon/4G. And I hope that it can lives happy with Windows dhcp-server like my old server did: http://www.arkki.info/howto/Wiki/LTSP-Kokkola/dhcpd.conf.txt I try to explain what I just did. A. Linksys with DD-WRT (v23 SP2) B. Ubuntu 7.10 x86_32 + 1 NIC + LTSP C. Edubuntu 7.10 x86_64 + 2 NIC (new server for office) D. TC (Fujitsu-Siemens Scenic (P4/256/i845G)) 1. If I got all three dhcpd-servers (A,B and C) running, I got situation where TC (D) tells me that rootserver: 192.168.1.1 and that is why Mounting /rofs failed. 2. If I disable only DD-WRT's DHCP-server (B and C running) and wait little time and then try to boot, then TC (D) boots and lives happy with server C. 3. If I disable DD-WRT's and C's dhcp-servers, then TC boots and lives happy with server B. I hope that tomorrow situation is like second one - Windows dhcp-server act like server B and do not confuse thin clients. Best Regards Asmo Koskinen. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
Re: [Ltsp-discuss] About more than one dhcpd-servers
Hi, On Wed, 09 Jan 2008, Asmo Koskinen wrote: I'm going add new server on my office tomorrow. Old one is 32-bit Ubuntu 6.06, new one is 64-bit Edubuntu 7.10. And machine itself is quite upgraded - from P4/1G to Duo Core Xeon/4G. And I hope that it can lives happy with Windows dhcp-server like my old server did: This is very interesting. If you don't mind I might ask a question or two. As I understand it, you're relying on the speed of DHCP servers. So, your LTSP dhcp server is faster to respond than the windows one, so it always responds first if it has a static lease defined for a mac address. By contrast, the DD-WRT dhcpd is quick and responds first, which is why it breaks the thin clients. If the linux dhcp server doesn't have a static lease defined, it doesn't respond and the windows server eventually gets used. Have I misunderstood? Is there some other reason the windows dhcp responses don't happen or get ignored? If the above is correct, I imagine placing load on the ltsp server might slow it down and the windows server might respond more quickly than it which might break your clients. Again, if I understand correctly, I guess as long as the dhcp server with the dynamic IP space is the slowest one and the others only respond to their own clients, this should probably work. However, it might be simpler to not run a dhcp server on your new server at all and just add new definitions to the existing edubuntu dhcpd with a different next-server and boot images. This is probably more of a question than an answer I'm afraid :-) Gavin - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
Re: [Ltsp-discuss] About more than one dhcpd-servers
Gavin McCullagh kirjoitti: However, it might be simpler to not run a dhcp server on your new server at all and just add new definitions to the existing edubuntu dhcpd with a different next-server and boot images. This new on will be only LTSP-server on my office, I disable old one, but not put it away before everything is working fine with new one. I really like to see what happens when I put working Edubuntu server with two NICs next Windows-dhcp-server. I hope I do not have to do nothing else ;-). I have now change ip-number and run ltsp-update-sshkeys for new server and it works (login, sound and USB-stick). http://www.arkki.info/howto/Wiki/LTSP5_64/Edubuntu_10.38.8.8.png See you tomorrow. Best Regards Asmo Koskinen. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
Re: [Ltsp-discuss] About more than one dhcpd-servers
Asmo Koskinen kirjoitti: I really like to see what happens when I put working Edubuntu server with two NICs next Windows-dhcp-server. When, I hope, I have figured out this one I start to wonder how to upgrade two Ubuntu 6.06 servers to Edubuntu 8.04: http://wiki.ubuntu-fi.org/Ubuntu_6.06_LTSP42#head-13981f562e9fe5a5b78532b8a843fa4ee00f6a06 Best Regards Asmo Koskinen. - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
Re: [Ltsp-discuss] About more than one dhcpd-servers
Hi Asmo, I'm going add new server on my office tomorrow. Old one is 32-bit Ubuntu 6.06, new one is 64-bit Edubuntu 7.10. And machine itself is quite upgraded - from P4/1G to Duo Core Xeon/4G. And I hope that it can lives happy with Windows dhcp-server like my old server did: actually you can just use the windows dhcp server as your one and only dhcp server and populate the ltsp specific info into it (cf. https://help.ubuntu.com/community/UbuntuLTSP/LTSPWindowsDHCP). It is not very complicated and works fine, it just feels a little weird :-) I think that it is also possible to explicitly exclude the MAC addresse of the terminals on the windows DHCP server, so you'll be sure that the terminal will get their configuration from the other dhcp server. cheers, Denis This is very interesting. If you don't mind I might ask a question or two. As I understand it, you're relying on the speed of DHCP servers. So, your LTSP dhcp server is faster to respond than the windows one, so it always responds first if it has a static lease defined for a mac address. By contrast, the DD-WRT dhcpd is quick and responds first, which is why it breaks the thin clients. If the linux dhcp server doesn't have a static lease defined, it doesn't respond and the windows server eventually gets used. Have I misunderstood? Is there some other reason the windows dhcp responses don't happen or get ignored? If the above is correct, I imagine placing load on the ltsp server might slow it down and the windows server might respond more quickly than it which might break your clients. Again, if I understand correctly, I guess as long as the dhcp server with the dynamic IP space is the slowest one and the others only respond to their own clients, this should probably work. However, it might be simpler to not run a dhcp server on your new server at all and just add new definitions to the existing edubuntu dhcpd with a different next-server and boot images. This is probably more of a question than an answer I'm afraid :-) Gavin - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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 -- Denis Cardon Tranquil IT Systems 44 bvd des pas enchantés 44230 Saint Sébastien sur Loire tel : +33 (0) 2.40.97.62.67 http://www.tranquil-it-systems.fr - Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _ 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
