IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 30 March 2014 (all times are UTC)
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| 01:52 | <Ark74> hi guys, do you know if this card's flow control can be disabled?
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| 02:23 | <Ark74> http://www.tp-link.com/en/products/details/?model=TG-3468#spec
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| 06:32 | <alkisg> Ark74: it can't be disabled
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| 06:33 | Try intel, broadcom, marvell, smc, d-link...
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| 07:07 | <Ark74> ethtool -a eth0 would let me know, right?
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| 07:09 | or directly with; ethtool -A eth0 autoneg off rx off
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| 07:09 | i'll test, thanks
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| 20:37 | <Ltspquestion> Yo, if i have 150-200 fat clients, do i need to cluster my ltsp? Or is one server ok?
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| 20:40 | <vagrantc> depends on useage
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| 20:41 | <Ltspquestion> Probably just web browsing, maybe bit of skype etc
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| 20:41 | Nice thng about clustering is high availability right..
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| 20:41 | <vagrantc> the fatclients are basically mostly using the server as a fileserver ... so disk i/o becomes important ... and if using the default sshfs homdirs, that eats some cpu.
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| 20:42 | <Ltspquestion> Hmm, have you ever seen ltsp on a cloud?
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| 20:42 | <vagrantc> lag will kill you
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| 20:42 | or do you mean a local network cloud?
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| 20:43 | <Ltspquestion> Yeah local
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| 20:43 | Im just thinking of creating cluster servers in cloud etc
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| 20:44 | Maybe that way it could manage reboots in the case of a crash etc
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| 20:44 | <vagrantc> it just depends on how it's implemented ... if the clients have no idea they're connecting to a cloud vs. a regular computer, then it'd surely work.
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| 20:44 | <Ltspquestion> Just seems complicated..... Cloud on metal, ltsp on cloud
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| 20:44 | But i reckon it would be pretty neat
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| 20:44 | <vagrantc> but ip address changes, different processes running on different virtual machines ... that could throw a wrench in things...
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| 20:45 | i'm sure something is possible there ... and would be good to explore
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| 20:45 | <Ltspquestion> Ill play with it, report back if people are interested
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| 20:45 | <vagrantc> most of my LTSP networks have been fairly straightforward
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| 20:46 | <Ltspquestion> Do you know what kind of network traffic a thin/fat client generates
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| 20:46 | <vagrantc> server-wise, fanciest thing is just running the LTSP servers on virtual machines
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| 20:46 | <Ltspquestion> Will i be ok with standard switches
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| 20:46 | <vagrantc> alkisg periodically does some numbers on network useage
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| 20:47 | main issue with thin clients is multimedia video ... as with modern resolutions and color depth, that eats a ton of bandwidth to stream video over X.
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| 20:48 | but with fatclients, it's virtually no different from running from a hard disk
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| 20:48 | <Ltspquestion> Hmm, do fat clients take significantly longer to boot?
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| 20:48 | <vagrantc> not much ... it only loads over the network hat it actually uses.
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| 20:49 | <Ltspquestion> Cool
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| 20:49 | So fat clients are good on modern hardware
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| 20:50 | Thanks for your help
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| 20:50 | <vagrantc> generally
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| 20:51 | there are some quirks with our current implementation, namely anything requiring authenticating with a password (i.e. screensaver)
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| 20:51 | or more importantly, screen locker
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| 20:51 | we have plans for ltsp6 that will fix that, though it's coming rather slowly
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| 20:52 | <Ltspquestion> So if the screen locks, it sometimes doesnt unlock?
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| 20:53 | <vagrantc> there's no way for it to unlock
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| 20:53 | it doesn't have access to the passwords
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| 20:53 | or rather the password hashes
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| 20:54 | <Ltspquestion> Hmm so maybe better to stick with thinclients?
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| 20:54 | <vagrantc> though you could run the screenlocker as a remote application, in that case
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| 20:54 | i.e. running it on the server
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| 20:54 | it really depends on your needs
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| 20:55 | <Ltspquestion> I pretty much just want to run ubuntu
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| 20:55 | Let people browse the internet, type docs etc
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| 20:55 | <vagrantc> fatclients take full advantage of modern hardware ... thin clients have limitations based on the technology, but are also more time-tested
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| 20:56 | <Ltspquestion> So screenlock would be better i guess
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| 20:56 | <vagrantc> "browse the internet" doesn't really say much with the modern internet
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| 20:56 | i.e. that could mean watching high definition videos :P
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| 20:56 | <Ltspquestion> Hmm maybe :)
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| 20:58 | Fat client sounds better
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| 20:59 | <vagrantc> at the last ltsp hackfest, we were talking about shifting the focus of LTSP from thin clients to fat clients... still supporting both, but maye changing defaults
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| 21:00 | <Ltspquestion> Well as long as it works as youd hope, i think its probably the better one?
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| 21:01 | <vagrantc> if you have the hardware to support it, it's definitely a nice option
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| 21:02 | <Ltspquestion> So how do you solve the screensaver thing?
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| 21:02 | Can you confogure the screenlock to work with an ldap server?
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| 21:03 | <vagrantc> you can run individual apps on the server or on the local hardware ... so you can run the locker on the server
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| 21:03 | <Ltspquestion> Ah cool
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| 21:03 | So its not really an issue
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| 21:04 | <vagrantc> it takes some effort
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| 21:04 | but it's possible.
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| 21:05 | i think some projects also set up pam-ldap or some such so that the fat clients can authenticate properly ...
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| 21:05 | our default setup is kind of a hackish workaround to avoid needing to set up ldap
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| 21:06 | i think the debian-edu project has ldap authenticated fat clients
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| 21:14 | <Ltspquestion> I guess if its cloud based
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| 21:14 | And you create a beast of an insstance
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| 21:14 | You might not need clustering?
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| 21:14 | Also if the cloud dealth with high availability etc for you
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| 21:17 | Ok gtg thx for your help
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