IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 17 March 2022 (all times are UTC)
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| 03:02 | <j_sh> Thanks, alkisg ! Bonding has worked for something similar for me in the past; I just wasn't sure how to bond before the network mounts. I will look into initramfs-tools.
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| 05:14 | <alkisg> j_sh: (in case you see the logs) actually on second thought it should be possible to just create the bond on POST_INITRD_BOTTOM_x, as you'll be reusing the same IP, so you don't even need to unmount and re-mount the NFS share
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| 08:14 | <pr0f3s0r> Hello, somebody knows lan software to throw surveys in class?
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| 08:16 | <alkisg> It's best to ask in your distribution for this as it's not ltsp-specific
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| 08:16 | <pr0f3s0r> okay
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| 08:16 | thanks
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| 15:20 | <libh> I read somewhere that ltsp only really works with GNOME or MATE, is that true or not?
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| 15:22 | <alkisg> Νοτ
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| 15:22 | Not, even
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| 15:22 | I've tested it with MATE, GNOME, KDE, XFCE, LXDE and LXQT, but it should work in all the other ones as well. It even works without a DE.
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| 15:23 | <libh> Thank you.
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| 15:24 | With LTSP, does this mean I have have a fleet of low spec computers be used to connect to a powerful server even if I was doing say video editing?
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| 15:24 | <alkisg> No. It just means that you need to maintain one installation instead of many. It doesn't change what you can do with your computers.
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| 15:27 | <libh> I thought LTSP made it possible to share resources with many different computers.
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| 15:27 | <alkisg> No, it's not related to clustering. With LTSP, you can netboot many computers from the same image. That image has the same abilities as if it was installed locally.
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| 15:28 | It can e.g. have x2go or xrdp installed, and with that, you can do "remote desktop" to a powerful server, this is somewhat called "thin clients"
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| 15:28 | But without x2go/xrdp, it's just normal netbooted "fat" clients, that run the apps locally with their own CPU/RAM/GPU
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| 15:28 | <libh> And if I used xrdp, I can then use a powerful GPU/CPU even if the local computer doesn't have that installed?
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| 15:31 | <alkisg> Yes, but note that remote desktop has a latency when updating the screen
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| 15:31 | E.g. if you play youtube, you see 5-10 fps, not 30-60 fps
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| 15:32 | <libh> You think that just having each computer be as powerful as the LTSP server be more ideal?
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| 15:33 | <alkisg> I think that fat clients are better suited for desktop workstations, and powerful servers for running math programs or other intensive long running tasks
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| 15:33 | So, ltsp fat clients in general should meet the Ubuntu/Debian/whatever recommended hardware requirements
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| 15:34 | Thin clients are fine for tasks that don't require a lot of video updates, e.g. not for web surfing
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| 15:35 | <libh> So a basic i5 dell computer with be ideal for a "fat client" that would connect to the powerful server and do demanding tasks on the fat client?
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| 15:36 | <alkisg> Yes
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| 15:37 | E.g. for schools here, I recommend an i3 with 4 GB RAM. While for my own office, I prefer i5 with 8 GB RAM.
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| 15:37 | <libh> i5 with 8GB of RAM for the local fat client or the server itself?
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| 15:39 | <alkisg> For the fat client. The server doesn't really need to be powerful, it just needs a fast local disk
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| 15:39 | https://ubuntu.com/download/desktop => recommended requirements: 4 GB system memory
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| 15:40 | Of course if you install e.g. lxde, and don't run a browser, you can boot clients with less than 512 MB RAM
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| 15:40 | But for web surfing etc, you should follow the recommended requirements of the distribution and DE you choose
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| 15:40 | <libh> What specs do you recommend for the fat client if we're talking about multimedia such as video editing, video encoding, streaming video, GIMP, and so on?
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| 15:41 | <alkisg> Well it depends; for a school I would say i3 with 8 GB RAM; for a professional multimedia environment, they might need 16 GB RAM or even more
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| 15:42 | That part isn't related to LTSP, it's the same as local installations
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| 15:42 | LTSP will just put your installation on the network instead of on a local disk
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| 15:42 | It doesn't change the requirements or the running speed
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| 15:43 | A professional that opens an image of 5000x5000 pixels needs more RAM than a hobbyist that opens an HD image
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| 15:43 | <libh> Okay, that makes sense. I was under the false impression I could do anything on any specs because the server would handle the entire load itself, even down to GPUs.
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| 15:44 | <alkisg> If you use x2go, then that's the case. But for desktop stuff, it's not worth it to invest to a powerful server and cheap clients.
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| 15:45 | <libh> Thanks, I'll keep the server and clients as equals.
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| 15:45 | <alkisg> Ten i5 clients with 4 or 8 GB RAM, will run a whole lot better than a server with ten times more powerful CPU, and 40 or 80 GB RAM. Plus, they'll be cheaper.
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| 15:46 | <libh> What makes LTSP special compared to a regular netboot and using NFS outside of LTSP?
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| 16:01 | <alkisg> Regular netboot is for a single client
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| 16:02 | LTSP adds some magic to simplify netbooting, global configuration, multiple clients via overlayfs from the same readonly image, pam authentication for logins etc
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| 16:02 | It's all in the ltsp.org start page
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| 16:07 | <alkisg> You're welcome :D
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