IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 30 April 2020 (all times are UTC)
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| 05:39 | <alkisg> !ubuntultsp
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| 05:39 | <ltspbot`> Error: "ubuntultsp" is not a valid command.
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| 08:45 | <Mark87> Hello, I have a few questions about epoptes
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| 08:48 | <alkisg> Mark87: shoot
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| 08:50 | <Mark87> the client and server are on separate networks connected via the Internet.What ports do I need to open on the router in the server page?
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| 08:50 | <alkisg> Mark87: https://github.com/epoptes/epoptes/issues/115
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| 08:51 | Unfortunately they're not specific ports; vnc needs its own, socat its own etc, so you either need VPN or DMZ
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| 08:51 | You could forward a biiiig range of ports too, but not just a few ports
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| 08:53 | <Mark87> Does the client require a public IP address?
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| 08:57 | <alkisg> Mark87: no
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| 08:58 | I think I need to document more about why this is necessary... for example, suppose that 10 teachers have logged in to the server, each broadcasting or assisting students... many ports will be needed then, not just a single vnc port
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| 08:59 | To make things worse, some VNC servers do not support multiple incoming connections per client, so then a different server port is used for each client, so again lots of ports are needed
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| 09:00 | Epoptes could try to encapsulate all traffic in a single port, but then it would need to reimplement VPN servers, VNC servers and clients, and socat servers and clients; too much code duplication; it's best to use external tools rather than do this
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| 09:02 | So, either VPN or DMZ are needed on epoptes-server, for epoptes to work over the Internet. The client doesn't need anything special.
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| 09:13 | <nikoh77> alkisg, ok, i have (as you know) an LTSP environment that work very well, but now i I would like to update it, also to boot from uefi PC and apple MAC...
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| 09:13 | <alkisg> nikoh77: I don't remember all the details for all the users, fortunately or unfortunately I support tens of thousands of users :)
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| 09:13 | So feel free to repeat them many times!
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| 09:14 | I implemented experimental support for UEFI for LTSP5 in github,
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| 09:14 | and I also implemented native UEFI support in the new LTSP
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| 09:14 | <nikoh77> i have LTSP5 server on VM so i can clone it and I can do all the tests I want without rosks ;-)
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| 09:14 | <alkisg> Select what you prefer. I do not know macs, but from what I'm reading, they use UEFI, so you need that
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| 09:15 | If you only use fat clients, I'd recommend that you upgrade to LTSP 20.04
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| 09:15 | <nikoh77> there is a tutorial/guide to upgrade from old to new ltsp?
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| 09:15 | <alkisg> If you also use thin clients, then use my ltsp5-uefi from github
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| 09:16 | <nikoh77> no, only fat
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| 09:16 | <alkisg> You remove the old LTSP as well as you can. You update your server etc. Then you clean-install the new LTSP
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| 09:16 | <alkisg> There's no migration step
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| 09:16 | There are no common files, no /opt common, no /etc/ltsp common, no lts.conf common
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| 09:17 | <nikoh77> ok, old conf file can be useful?
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| 09:17 | ah ok
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| 09:17 | <alkisg> Not really. Keep it for reference, but you should start from a clean one
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| 09:17 | About 20% of the directives are the same
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| 09:17 | The rest 80% ltsp.conf parameters are different. It even goes elsewhere now, and it's named ltsp.conf, not lts.conf
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| 09:17 | !ltsp.conf
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| 09:17 | <ltspbot`> ltsp.conf: Configuration file for LTSP: https://ltsp.org/man/ltsp.conf/
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| 09:18 | <alkisg> The upstream site now is very minimal, and good ltsp administrators should read all of it
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| 09:19 | <nikoh77> of course ;-)
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| 09:19 | <alkisg> nikoh77: as you know, I'm available for remote support, if you need a quick migration ;)
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| 09:19 | <nikoh77> i try
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| 09:19 | <alkisg> E.g. to make sure all the unnecessary packages like pxelinux are now removed
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| 09:19 | <nikoh77> uh.... really?
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| 09:20 | <alkisg> Yeah, you don't need pxelinux, nbd and lots of others
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| 09:20 | <nikoh77> how remote support?
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| 09:20 | <alkisg> That's why I say "start by removing the old ltsp"; and all its dependencies :)
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| 09:20 | !vnc-dide
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| 09:20 | <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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| 09:20 | <alkisg> Do the cloning first
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