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


Channel log from 12 November 2020   (all times are UTC)

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16:18
<eu^zibilinsecopl>
Hi everyone!
16:28
<alkisg>
Hello
16:29
<eu^zibilinsecopl>
I've started to prepare ldap authentication on ltsp
16:30
sssd configured on serwer + sssd preconfigured in client image
16:31
has anyone working such configuration?
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16:33
<eu^zibilinsecopl>
I have many servers LTSP5 working with LDAP and need to prepare working it in new LTSP
16:34
btw: big thanks for huge work on new LTSP, it's great !
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16:44eu^zibilinsecopl is now known as zibi
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17:34
<alkisg>
zibi: I think some people have working ldap, google for ldap site:github.com/ltsp
17:56
When funding is found, we'll add official support for ldap, ad or sssd...
18:03
<zibi>
Now I can login on client with LDAP credentials, without emting 54-pam.sh, but need to mount homedir by sshfs yet
18:07
<alkisg>
I think a few code lines would need to be changed in order to use sshfs with ldap on the client
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18:08
<zibi>
hope so :)
18:08
<alkisg>
If you have it working with nfs home, then it shouldn't be very hard :)
18:09
<zibi>
I think sshfs is more secure, so it's better solution for me
18:10
<alkisg>
Sure
18:11
<zibi>
Using sssd is common for LDAP and AD so I thing is proper way
18:11
<alkisg>
I don't think the exact pam module will matter, it will just mean that the user isn't local
18:12
so "authenticate without searching for the user in /etc/passwd"
18:12
<zibi>
but need to configure it on client image
18:13
right
18:15
Do you use swap over NBD? I think it's necessary to have swap on clients
18:22
<alkisg>
This has numerous problems, it's best to have local swap, e.g. in usb stick or local disk
18:22
This is used automatically
18:33
<quinox>
(I give my clients 8GB to 32GB of ram and run them without swap)
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18:39
<alkisg>
When a client needs to use swap, it saturates the network and the server cpu so much, that it affects ALL other clients
18:40
<zibi>
yes, it can slow down all clients
18:40
<alkisg>
Maybe this will get better in the future with systemd oomd, we'll see; currently it's a bad idea
18:40
We did use that in ltsp5, and it caused so many problems that I didn't want to reimplement it as is
18:41
So now I'm just using local swap in schools that need it
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18:41
<alkisg>
You can very easily enable swap in ltsp20, it just needs an nfs-rw directory and mkswap/swapon commands in POST_INIT_x
18:42
E.g . /srv/ltsp/swap/$MAC_ADDRESS.swap
18:43
<zibi>
I have such situation of slow down all clients in LTSP5 when some of them open an application with hard working graphics
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