RE: diskless workstations / setup
Hi all, On Mi 30 Mär 2011 04:52:22 CEST Oded Naveh wrote: Hello Mike, I don't quite understand your questions, it may be that I'm completely un-informed, but it's possible the confusion isn't all mine. So I'd try to explain what and why I don't understand. My original question was: where are LTSP diskless workstations located in a default Skolelinux network? The short answer is: in the 10-network. But the handling and esp. the default settings are not clear to me. The documentation for squeeze is not available yet, so maybe someone who has worked on the LTSP setup can provide information. I try to summarize what I have read so far on the internet, most information regards Debian Edu lenny, though. My concerns are NOT Debian lenny I always refer to the future setup of Debian Edu squeeze in this mail!!! If Tjener is main server only: -- o the PXE installer (a Skolelinux installation bootstrap available via PXE) is offered to any machine that boots on the 10-network via PXE. Questions: - is the PXE installer really offered to any machine??? - is there a concept of protecting workstations from PXE installation (password hash for individual boot options) in the default Skolelinux setup? If Tjener is main server _and_ LTSP server: --- o the PXE installer (a Skolelinux installation bootstrap available via PXE) is offered to any machine that boots on the 10-network via PXE o to machines in the 10-network that are in LDAP also a diskless workstation LTSP profile is offered o to machines in the 192-network only the thin client profile is offered Questions: - can I also boot thin clients in the 10-network (again, I am asking for the current defaults)? I am asking as I found some information that raised that statement... Tjener is main server, LTSP server is separate... - This is the actual question I have: the boot prompt offered to a machine booting via PXE results from dhcpd config. Dhcpd config is stored in LDAP. o I have a tjener that offers PXE Debian Edu installer... o and I have an LTSP server that offers Diskless Workstations to the 10-network o How can are these different functionalities controlled? (with GOsa?) o Which PXE boot prompts (install Debian Edu via PXE, Thin Client, Diskless Workstation) are available in which subnets? Again, I am asking for the current Skolelinux squeeze defaults (that might already have been the defaults in Debian Edu lenny). Note: I have scanned the debian-edu SVN repos, but did not really find answers to the above questions. Unfortunately, I have not time to test this before next Monday, myself. However, on Monday I plan to speak about Skolelinux to a couple of people and only lately I have stumbled over the above aspects that are not yet quite clear to me. Hope that someone has some experience on that... Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb pgpmGo5nKhymR.pgp Description: Digitale PGP-Unterschrift
Re: developer meeting in May in Hamburg?
Hi, I'm very interested in joining this debian-edu developper meeting in Hamburg. The only weekend I cannot come is the 6-8 of May. All the others are fine for me. hope to cu soon, rft Am 28.03.2011 22:08, schrieb Angela Fu: > Hej Holger, > > I would love to come to some sort of socializing-event-part of a > developer meeting in Hamburg ;-) - > I am not able to develop anything for Debian but I want to meet and get > to know involved people! > And it is possible that Andreas (whom we work with in our school projekt > in Kiel) would also like to come to some social-get-to-know-each-other > part of a developer meeting. > > Greets from Angela > > > Zitat von Holger Levsen : > >> Hi, >> >> I'm wondering who/how many would be joining a developer meeting May in >> Hamburg? >> >> I'm pondering to organize one in the Atraktor hackerspace (see >> http://wiki.attraktor.org/) - we could get that for free, have good >> spaces >> and connectivity there. The location in the city and public transport >> connections are also good. >> >> The goal I would like to work on is the release of Debian Edu squeeze. >> Probably also _only_ work on that? ;) >> >> It seems I could organize some local sponsorship for the meeting plus I'm >> thinking about asking the DPL for some money from the "developing sprints >> programm". >> >> I'm thinking about 6-8th or 13-15th of May, but thats just an idea to >> get some >> more comments. >> >> So, comments? Would you be interested to join and make the Debian Edu >> squeeze >> release happen?! >> >> >> cheers, >> Holger >> > > > -- To UNSUBSCRIBE, email to debian-edu-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4d9580bb.3030...@imail.de
Re: developer meeting in May in Hamburg?
* Holger Levsen [110328 14:02]: > Hi, > > I'm wondering who/how many would be joining a developer meeting May in > Hamburg? good idea! > > I'm pondering to organize one in the Atraktor hackerspace (see > http://wiki.attraktor.org/) - we could get that for free, have good spaces > and connectivity there. The location in the city and public transport > connections are also good. > > The goal I would like to work on is the release of Debian Edu squeeze. > Probably also _only_ work on that? ;) > > It seems I could organize some local sponsorship for the meeting plus I'm > thinking about asking the DPL for some money from the "developing sprints > programm". > > I'm thinking about 6-8th or 13-15th of May, but thats just an idea to get > some > more comments. Linuxtag in Berlin 11. - 14. Mai 2011 > > So, comments? Would you be interested to join and make the Debian Edu squeeze > release happen?! > > > cheers, > Holger Viele Gruesse/Regards -- Kurt GramlichSchule? Software? Skolelinux! :-) kurt.graml...@lugrav.de listen to the war and peace report GnuPG Key ID E263 FCD4 http://www.democracynow.org/ -- To UNSUBSCRIBE, email to debian-edu-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110401083334.gc10...@gnu-tec.de
RE: diskless workstations / setup
Hello Mike [Mike Gabriel - Friday, April 01, 2011 11:25 AM] > On Mi 30 Mär 2011 04:52:22 CEST Oded Naveh wrote: > >> I don't quite understand your questions, >> it may be that I'm completely un-informed, This discussion has already been educating for me. Thanks. > Tjener is main server, LTSP server is separate... > - > This is the actual question I have: the boot prompt offered to a > machine booting via PXE results from dhcpd config. Dhcpd config is > stored in LDAP. > >o I have a tjener that offers PXE Debian Edu installer... >o and I have an LTSP server that offers Diskless Workstations to > the 10-network >o How can are these different functionalities controlled? (with >GOsa?) o Which PXE boot prompts (install Debian Edu via PXE, Thin > Client, Diskless Workstation) are available in which subnets? > > Again, I am asking for the current Skolelinux squeeze defaults (that > might already have been the defaults in Debian Edu lenny). I can't say anything about the current setup, sorry. but I still think the following is relevant to your questions. I'll try to be concise. PXE boot can be easily controlled through GOSA by manipulating DHCP configuration. The relevant settings [0] are: - next-server - root-path - filename These may be defined per subnet or per host - by MAC address - as well as other declarations [1]. The more specific takes precedence. However, for this to work these options must point to locations pre-installed with the relevant PXE configurations. I believe the locations in default Skolinux installations haven't changed and can be seen in /var/lib/tftpboot/ on the LTSP server for more details, Where there are essentially at least two different locations. The exact location can be determined by looking at the DHCP parameters. To sum up: query your LDAP for 'root-path' it will tell you where to look farther. Hope it helps. Odd. [0] See man dhcp-options(5). [1] From man dhcpd.conf(5) (where there's a lot more): When a client is to be booted, its boot parameters are determined by consulting that client's host declaration (if any), and then consulting any class declarations matching the client, followed by the pool, sub- net and shared-network declarations for the IP address assigned to the client.Each of these declarations itself appears within a lexical scope, and all declarations at less specific lexical scopes are also consulted for client option declarations. Scopes are never considered twice, and if parameters are declared in more than one scope, the parameter declared in the most specific scope is the one that is used. -- To UNSUBSCRIBE, email to debian-edu-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/41F1D0AFC0264F7FA5618A50AD05ED52@static00
Re: diskless workstations / setup
Hi, I haven't read an appropriate answer yet, so I'll try to give one. I'm suprised though that nobody did. I don't know about Squeeze, but for Lenny it is like the following: DHCPD on Tjener serves the 10.0.2.0/23 network, via PXE-Boot you get a syslinux menu where you can choose whether to install a new server/workstation, boot a thinclient or a diskless workstation, memtest, or from local harddisc. This of course can be modified, have the nfs-root in syslinux point to one of the ltspservers or change next-server in DHCP to have clients directly boot via PXE from the terminalserver. The DHCPD on the ltspserver only serves a dedicated 192.168.0.0/24 network on the second interface and is of no interest for this scenario. Regards, -- .''`. Philipp Huebner : :' : pgp fp: 6719 25C5 B8CD E74A 5225 3DF9 E5CA 8C49 25E4 205F `. `'` HP: http://www.debalance.de, Skype: philipp-huebner `- ICQ: 235-524-440, Jabber: der_scha...@jabber.org signature.asc Description: OpenPGP digital signature
RE: diskless workstations / setup
Hi Oded, On Fr 01 Apr 2011 11:54:23 CEST Oded Naveh wrote: Hello Mike [Mike Gabriel - Friday, April 01, 2011 11:25 AM] On Mi 30 Mär 2011 04:52:22 CEST Oded Naveh wrote: I don't quite understand your questions, it may be that I'm completely un-informed, This discussion has already been educating for me. Thanks. Tjener is main server, LTSP server is separate... - This is the actual question I have: the boot prompt offered to a machine booting via PXE results from dhcpd config. Dhcpd config is stored in LDAP. o I have a tjener that offers PXE Debian Edu installer... o and I have an LTSP server that offers Diskless Workstations to the 10-network o How can are these different functionalities controlled? (with GOsa?) o Which PXE boot prompts (install Debian Edu via PXE, Thin Client, Diskless Workstation) are available in which subnets? Again, I am asking for the current Skolelinux squeeze defaults (that might already have been the defaults in Debian Edu lenny). I can't say anything about the current setup, sorry. but I still think the following is relevant to your questions. I'll try to be concise. PXE boot can be easily controlled through GOSA by manipulating DHCP configuration. The relevant settings [0] are: - next-server - root-path - filename These may be defined per subnet or per host - by MAC address - as well as other declarations [1]. The more specific takes precedence. However, for this to work these options must point to locations pre-installed with the relevant PXE configurations. I believe the locations in default Skolinux installations haven't changed and can be seen in /var/lib/tftpboot/ on the LTSP server for more details, Where there are essentially at least two different locations. The exact location can be determined by looking at the DHCP parameters. To sum up: query your LDAP for 'root-path' it will tell you where to look farther. Hope it helps. Odd. [0] See man dhcp-options(5). [1] From man dhcpd.conf(5) (where there's a lot more): When a client is to be booted, its boot parameters are determined by consulting that client's host declaration (if any), and then consulting any class declarations matching the client, followed by the pool, sub- net and shared-network declarations for the IP address assigned to the client.Each of these declarations itself appears within a lexical scope, and all declarations at less specific lexical scopes are also consulted for client option declarations. Scopes are never considered twice, and if parameters are declared in more than one scope, the parameter declared in the most specific scope is the one that is used. Thanks for your contribution (again!). Maybe still there is someone who know the current defaults... Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb pgpm7MYsmXfTg.pgp Description: Digitale PGP-Unterschrift
Re: developer meeting in May in Hamburg?
Hi, I will be on my way to Australia and not be able to join in any way. Regards, -- .''`. Philipp Huebner : :' : pgp fp: 6719 25C5 B8CD E74A 5225 3DF9 E5CA 8C49 25E4 205F `. `'` HP: http://www.debalance.de, Skype: philipp-huebner `- ICQ: 235-524-440, Jabber: der_scha...@jabber.org signature.asc Description: OpenPGP digital signature
Re: diskless workstations / setup
Hi Philipp, On Fr 01 Apr 2011 12:19:23 CEST Philipp Huebner wrote: Hi, I haven't read an appropriate answer yet, so I'll try to give one. I'm suprised though that nobody did. I don't know about Squeeze, but for Lenny it is like the following: DHCPD on Tjener serves the 10.0.2.0/23 network, via PXE-Boot you get a syslinux menu where you can choose whether to install a new server/workstation, boot a thinclient or a diskless workstation, memtest, or from local harddisc. This of course can be modified, have the nfs-root in syslinux point to one of the ltspservers or change next-server in DHCP to have clients directly boot via PXE from the terminalserver. The DHCPD on the ltspserver only serves a dedicated 192.168.0.0/24 network on the second interface and is of no interest for this scenario. Thanks a lot for this short and clear answer!!! Great, Mike -- DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419 GnuPG Key ID 0xB588399B mail: mike.gabr...@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb pgpBOmebwuYk4.pgp Description: Digitale PGP-Unterschrift
Re: developer meeting in May in Hamburg?
Mandag 28. mars 2011 14.01.52 skrev Holger Levsen : > I'm thinking about 6-8th or 13-15th of May, but thats just an idea to > get some more comments. I would like to join, but both of these weekends are impossible for me. The only weekend in May possible is the 27-29th of May -- Klaus Ade kl...@bzz.no 67E61D18B2C44F8A3DA35C6D849F9F5F 26FA477D signature.asc Description: This is a digitally signed message part.
