IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 13 February 2021 (all times are UTC)
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| 18:28 | <eu^static-108-34> hello all!
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| 18:29 | <alkisg> Hello eu^static-108-34
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| 18:29 | <eu^static-108-34> I've encountered a problem that I would like to air out here
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| 18:29 | <alkisg> Shoot
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| 18:29 | <eu^static-108-34> Hi Alkisg!
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| 18:29 | I have a vlan situation
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| 18:29 | where vlan2 cannot boot from the ltsp located at vlan1
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| 18:30 | It was very easy to do before where I had used Linux isc-dhcp-server on both sides, the option next-server just handed it off to the dhcp server on vlan1
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| 18:31 | <alkisg> What are the restrictions, you have to use isc-dhcp where the clients are, or are you flexible?
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| 18:31 | <eu^static-108-34> But since I am not doing dhcp anymore with the new ltsp/dnsmasq server, I've encountered this problem
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| 18:31 | very flexible, just looking for the easiest fastest solution
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| 18:32 | right now I'm letting pfsense to the dhcp on the vlan1 side where the ltsp server resides
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| 18:33 | <alkisg> This is the isc-dhcp config for ltsp: https://ltsp.org/advanced/isc-dhcp-server/
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| 18:33 | Now I guess dhcp requests can't reach the other vlan, right? I don't know vlans well
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| 18:33 | So you need a dhcp server on vlan2
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| 18:33 | <eu^static-108-34> no I have no problems one side seeing the other
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| 18:34 | <alkisg> Then why do you need a dhcp server on vlan2? Can't the ltsp server just use the usual proxy mode?
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| 18:35 | <eu^static-108-34> I have /etc/dhcpd/dhcpd.conf on the vlan2 side working fine, and it was working with the next-server option pointing to the other vlan where the ltsp server sits but now that is not working because on the vlan1 side, I have pfsense handling the dhcp
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| 18:35 | <alkisg> next-server is essentially the tftp server
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| 18:35 | so you want that to point to ltsp
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| 18:36 | <eu^static-108-34> I was running out of ip addresses with just one vlan and the guy before me set the initial vlans up
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| 18:36 | <alkisg> Hrm? Instead of just increasing the subnet?
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| 18:36 | <eu^static-108-34> I did that but that's not working.
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| 18:36 | <alkisg> Aren't vlans for safety, to separate management from users?
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| 18:37 | Do you have some linux screen on vlan2 that you can share?
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| 18:37 | !vnc-dide
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| 18:37 | <ltspbot> vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
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| 18:37 | <alkisg> To test the result of ipconfig, tftp etc
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| 18:37 | <eu^static-108-34> It's an easy way around running out of ips, when they were initially setup with class c's
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| 18:37 | ok one sec
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| 18:39 | <Peter-LTSP-Vlans> ok alkisg, this is me here now
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| 18:39 | <alkisg> OK
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| 18:39 | !vnc-dide
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| 18:39 | <ltspbot> vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
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| 18:39 | <Peter-LTSP-Vlans> ok
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| 18:39 | <alkisg> The bestest way would be if you had some pc with virtualbox on it, so that we could even test a vm ltsp client in bridged mode
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| 18:40 | But even without it, we'll see dhcp, tftp etc
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| 18:40 | <Peter-LTSP-Vlans> You'll be connecting right into the ltsp server, we have virtualbox, epoptes, etc
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| 18:43 | <alkisg> Peter-LTSP-Vlans: is any of these in vlan2?
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| 18:44 | <Peter-LTSP-Vlans> no
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| 18:44 | <alkisg> Of the epoptes clients
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| 18:44 | Can you boot something with linux in vlan2 ?
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| 18:44 | <Peter-LTSP-Vlans> I can get you connected to a box on that side of the fence if you like
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| 18:44 | <alkisg> Great, please do
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| 18:44 | ssh, whatever you like
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| 18:48 | Peter-LTSP-Vlans: ltsp suggests dnsmasq, but isc-dhcp is fine too,
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| 18:48 | which one doyou prefer?
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| 18:49 | I have more experience with dnsmasq, but I believe I can make isc-dhcp work as well
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| 18:49 | <eu^static-108-34> do you mean on the ltsp side?
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| 18:49 | <alkisg> On vlan2
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| 18:49 | The ltsp side, does it have any ltsp clients?
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| 18:49 | <eu^static-108-34> I already have isc-dhcp working so I'd rather stay with that
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| 18:49 | <alkisg> OK
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| 18:49 | (08:49:42 PM) alkisg: The ltsp side, does it have any ltsp clients?
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| 18:50 | <eu^static-108-34> oh yea, that's working fine over there
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| 18:50 | <alkisg> OK
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| 18:50 | <eu^static-108-34> You could start any one of those pcs in the epoptes groups to start one if you like
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| 18:50 | <alkisg> We'll need to fix dhcp first
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| 18:51 | <eu^static-108-34> ok
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| 18:56 | <alkisg> eu^static-108-34: I've sent WOL on after-school1, is that ok?
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| 18:56 | Will it reach the other vlan?
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| 18:56 | <eu^static-108-34> yes
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| 18:56 | <alkisg> ok
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| 18:57 | <eu^static-108-34> that one is on vlan1 side
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| 18:57 | we can start a vm on the vlan2 side
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| 18:57 | <alkisg> Ah, no we want ... right
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| 18:57 | <eu^static-108-34> watch the virtual monitor
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| 18:57 | <alkisg> Great
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| 18:58 | And off it goes :)
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| 18:58 | On the first try :)
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| 18:58 | <eu^static-108-34> Yay!
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| 18:58 | It would have taken me a hell of a lot longer lol
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| 18:58 | <alkisg> If you see that real clients are as slow as this one, you could also use http ipxe
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| 18:58 | Hehe, experience in a topic does matter
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| 18:58 | Try to login to verify that everything is in order
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| 18:59 | <eu^static-108-34> ok
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| 18:59 | <alkisg> Nice login screen wallpaper!
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| 19:00 | <eu^static-108-34> Thank you
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| 19:00 | <alkisg> Great, closing vnc
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| 19:00 | <eu^static-108-34> It all seems to be working perfectly, thank you very much!
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| 19:00 | <alkisg> You're welcome :)
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| 19:00 | <eu^static-108-34> I'll use your email again ;-)
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| 19:00 | <alkisg> Thank you too then!!!
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| 19:01 | You're very kind
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| 19:01 | <eu^static-108-34> well thank you. I just have to go there now to run the epoptes-client -c command on them so they show up in epoptes
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| 19:01 | I love that app
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