IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 5 September 2009 (all times are UTC)
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| 04:38 | <nubae> johnny: it was in #edubuntu, not here
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| 04:38 | I let the chatroom
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| 04:39 | Anyone interested in looking at something at ripping it apart by giving constructive criticism?
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| 04:41 | <nubae> there are no prices or stars, or even your name in golden letters.... just plain old usability testing, where u tell someone... the there is a piece of shit... take it out...
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| 04:41 | but more constructively put than that
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| 04:42 | cd /moodle
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| 04:42 | doh
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| 04:48 | i guess saturday s not the best od days to ask...
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| 07:57 | <Davdfaef> hi guys i need some advice about network devices and speed
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| 07:58 | <alkisg> !ask
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| 07:58 | <ltspbot> alkisg: "ask" is Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least 15 minutes after asking a question, as not everybody constantly monitors the channel.
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| 08:16 | <Davdfaef> i dont need wiki, i need real-life experience
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| 10:17 | <johnny> where's a good place to get a used laptop these days?
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| 10:17 | or rather.. a good cheap laptop in general :)
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| 10:20 | <vagrantc> johnny: you're on the wrong side of the continent
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| 10:21 | <johnny> probably
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| 10:21 | just tryin
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| 10:21 | my friend is in mexico
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| 10:21 | his laptop broke
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| 10:21 | <vagrantc> ah.
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| 10:21 | <johnny> he's just tryin to get a new one..
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| 10:21 | but, he's getting a friend from the states to bring him one
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| 10:21 | * vagrantc can probably get a hold of a variety of cheap quirky laptops | |
| 10:22 | <johnny> well.. he edits photos
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| 10:22 | raw photos
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| 10:22 | so perhaps not
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| 10:22 | from the freegeek stock.. unless the stock has gotten so much better since i was there :)
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| 10:25 | <vagrantc> probably considerably better, but i wouldn't recommend relying on it
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| 10:29 | <johnny> hmm.. but i might want to :)
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| 10:29 | for myself i mean
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| 10:30 | if i wait much longer.. what you guys have is gonna be better than my own laptop :)
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| 10:30 | 1.5ghz pentium m
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| 10:37 | * vagrantc looks at the udev updates in debian stable and worries a little about cdpinger | |
| 10:41 | <vagrantc> i should probably start testing with stable-proposed-updates occasionally
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| 11:04 | ok, false alarm. works fine still.
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| 11:29 | <zamba> you recommend ubuntu server for the thin client server, yeah?
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| 11:29 | <vagrantc> not i
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| 11:30 | <zamba> ubuntu desktop?
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| 11:30 | <vagrantc> i recommend debian :)
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| 11:30 | <zamba> .. if you have to go for ubuntu, i mean :)
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| 11:30 | hehe
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| 11:30 | <vagrantc> but if you're going with ubuntu, it's easier to use the ubuntu-desktop, yes.
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| 11:30 | <zamba> nah.. i don't want X running on it
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| 11:30 | just want the required libraries for it
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| 11:31 | i don't want easiest, i want "best" :)
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| 11:31 | <vagrantc> zamba: you can do it all by hand, sure.
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| 11:31 | <zamba> yup
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| 11:31 | <vagrantc> zamba: but i think the recommended way is to install ubuntu-desktop
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| 11:31 | since you need nearly all the ubuntu-desktop stuff
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| 11:32 | <zamba> well.. i don't want X running on the server itself.. but i guess i can just deactivate that
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| 11:32 | <vagrantc> zamba: do what you will. you asked :)
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| 11:32 | <zamba> hehe, i didn't mean it that way :)
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| 18:51 | <moldy> hi
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| 18:51 | what is a robust way to detect ltsp sessions on the server?
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| 19:17 | <Ryan52> moldy: "w"?
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| 19:31 | <moldy> Ryan52: no, that shows all kinds of logins
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| 19:31 | Ryan52: i need to get ltsp sessions, and ltsp sessions only
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| 19:33 | <Ryan52> then you'll have to parse the output of w
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| 19:33 | to figure it out
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| 19:34 | <moldy> that's the question: what do i look for when parsing?
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| 19:34 | <alkisg> moldy, if you're running the script as root, you could look for the "LTSP_CLIENT" environment variable in the sessions
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| 19:35 | <moldy> alkisg: /bin/ps eaxww|grep "bash -c"|grep "LTSP_CLIENT"|grep -v grep
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| 19:35 | that's what i did so far, but it does not seem to work anymore
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| 19:36 | <alkisg> moldy: no, I mean to `cat /proc/$pid/environ`
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| 19:36 | Want some relevant code?
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| 19:36 | <moldy> alkisg: yes
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| 19:37 | <alkisg> http://pastebin.com/f660644be <== that's for playing a video to all clients simultaneously, but you'll get the idea...
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| 19:38 | <moldy> alkisg: so you're grepping for DISPLAY?
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| 19:38 | <alkisg> For metacity
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| 19:39 | DISPLAY is what I want to broadcast video, you'd be looking for LTSP_CLIENT instead of DISPLAY...
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| 19:40 | <moldy> grep LTSP_CLIENT /proc/*/environ |wc -l ==> 74
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| 19:40 | with 1 user logged in...
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| 19:40 | <alkisg> Nope. You gotta use the metacity pid, not *all* pids...
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| 19:40 | <moldy> i don't know the pid
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| 19:40 | so i must look at all ones
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| 19:41 | <alkisg> pid=$(pgrep -u $user metacity)
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| 19:41 | ?
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| 19:41 | <moldy> i'm not dealing with any specific app, i must detect ltsp sessions
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| 19:41 | <alkisg> Yes, I get that, don't all ltsp sessions have metacity running (or something similar?)
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| 19:42 | <moldy> probably not if you don't use gnome
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| 19:42 | anyway, i think i i need the session's "parent", should be a ssh process, i think
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| 19:42 | <alkisg> Yes, that's why I say something "similar"... anyway that's how I did it, if it helps, ok, if it doesn't, ask again... :)
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| 19:42 | <moldy> i need this to be *robust*
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| 19:43 | i.e. "won't break on any minor change in how ltsp does things" :)
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| 19:44 | * alkisg didn't put a lot of thought in it, it's for private use only, in school... | |
| 19:44 | <moldy> for pid in $(pgrep ssh); do grep LTSP_CLIENT /proc/${pid}/environ; done <-- this *seems* to work, but i'm not sure how robust it really is
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| 19:45 | alkisg: https://launchpad.net/tcm-ng i'm working on that app
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| 19:45 | <alkisg> Yup I remember that... :)
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| 19:46 | Hope you're going to be releasing beta versions soon!
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| 19:46 | <moldy> i hope so, too
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| 19:46 | <alkisg> Does the `pgrep ssh` show only one process per logged-on-user?
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| 19:46 | <moldy> i think we have everything except vnc working
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| 19:47 | the whole command seems to show only one process per user
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| 19:47 | i cannot do grep per user because the purpose of this code is to detect the users :)
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| 19:49 | hm no, that grep seems to find the wrong process
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| 19:50 | <alkisg> What if the user uses ssh to connect to another pc? As a child process, won't that also have LTSP_CLIENT set?
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| 19:51 | (but even if you find more than one processes per user, I guess you can just eliminate the duplicates...)
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| 19:52 | <moldy> yeah, all that process-grepping is a hack
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| 19:52 | it would be nice if ltsp wrote the pid of the login somewhere
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| 19:52 | maybe it does and i just don't know
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| 19:54 | hm, i guess i need to think some more about this
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| 19:57 | <cliebow> yep
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| 22:38 | <stgraber> just updated the agenda for BTS2009 and added the name of who added each entry so we know who wants to speak about what
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| 22:38 | please add your own items so it doesn't seem like I'm trying to takeover the hackfest or something ;)
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