IRC chat logs for #ltsp on irc.libera.chat (webchat)


Channel log from 27 April 2022   (all times are UTC)

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06:09
<AllofaSuddenIMis>
Thanks for answer. I get this error and couldn't find a way to fix it. tftpd-hpa.service is running, looks like client can't reach it and load the image...
06:16
<alkisg>
All of a Sudden I Miss Everyone: check your tftp server logs, to see which file the clients request, or boot the client using ipxe.iso, so that you see the configuration it receives
06:16
All of a Sudden I Miss Everyone: if you do have tftpd-hpa, it means you have a linux serer; why not use the default dnsmasq/proxydhcp instead?
06:17
The less you diverge from the defaults, the less administration work you need to do...
06:18
I mean, by default ltsp uses dnsmasq for both dhcp and tftp; it doesn't use tftpd-hpa nor isc-dhcpd
06:20* AllofaSuddenIMis uploaded an image: (526KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/jqDKOkhckcXGmJAYQQiyYMkl/2022-04-27%2009_19_25.jpg >
06:20
<AllofaSuddenIMis>
so i can simply disable tftpd-hpa? don't exacly know how it works so far, sorry. Here is my dnsmasq config, is this correct?
06:20
<alkisg>
If you have dnsmasq installed, you should apt purge tftpd-hpa
06:20
<AllofaSuddenIMis>
okay, it's done
06:21
<alkisg>
Your dnsmasq.conf is fine, it's the typical one that ltsp produces
06:36
<AllofaSuddenIMis>
Hm, that is interesting. Trying to start dnsmasq service and get this error message. That is why client couldn't load tftp i suppose
06:36* AllofaSuddenIMis uploaded an image: (222KiB) < https://libera.ems.host/_matrix/media/r0/download/matrix.org/bVPJJRCLJfJEemNvstUebORk/2022-04-27%2009_35_53.jpg >
06:37
<AllofaSuddenIMis>
What is that mean?
06:39
<alkisg>
All of a Sudden I Miss Everyone: it probably means that you have another dnsmasq.conf. Did you modify /etc/dnsmasq.conf? Did you add another file in /etc/dnsmasq.d?
06:39
The /etc/dnsmasq.conf file is supposed to be all comments; the ltsp-dnsmasq.conf is supposed to be managed by ltsp; and if you want, you can create a /etc/dnsmasq.d/local.conf file
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18:49
<bobby99>
Good evening. I have created a new user on the server that does not appear on the client. What did I do wrong?
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20:09
<bobby99>
So I found that I need to run "ltsp initrd". I did it, and the new user appears on the client. Howevr, I cannot login on the client any more. No user can. When I try, I can't login on th server any more. I have to delete the .Xauthority file so I can login on the server again.
20:09
What's wrong?
20:09
<vagrantc>
ouch
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20:14
<bobby99>
Hold on...
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20:17
<bobby99>
So, I just resolved it...
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20:23
<vagrantc>
bobby99: curious what the issue was
20:25
<bobby99>
I had a bunch of ssh options in the ltsp.conf file. For some reason, these have never become effective - until I ran "ltsp initrd" today to make the new user appear. Something must be wrong with these options.
20:25
<vagrantc>
ah
20:25
that could certainly do that
20:25
<bobby99>
I'm still checking them. I had them in place to make sshfs access faster.
20:26
SSH_OPTIONS="-o compression=no -o Ciphers=aes128-ctr -o disable_hardlink -o follow_symlinks"
20:26
Anything wrong with that?
20:28
<vagrantc>
you sure that that compression and cipher actually improves performance? :)
20:29
<bobby99>
No. It was a test based on recommendations from some web sources.
20:29
Usually, arcfour is the recommended cipher. But for some reason, it didn't work.
20:29
<vagrantc>
it really depends on what you're doing ... compression=yes can often speed things up considerably ... but only if the data you're sending is compressable
20:31
<bobby99>
Seems as if I need some spare time to do more thorough tests...
20:31
From my current understanding, I only need to run "ltsp initrd" when I change /etc/ltsp/ltsp.conf. Right?
20:32
<vagrantc>
or add users
20:32
or remove users ...
20:32
<bobby99>
Yes
20:32
<vagrantc>
or install new packages
20:32
or remove... or upgrade... etc. :)
20:32
<bobby99>
This should be mentioned in a more prominent location on the website.
20:33
I think it's only in the "Installation" section. Maybe an "Updating" section would be good.
20:34
That's it for today. Have a good night!
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