hmmm… I just checked /etc/hosts and see a couple of lines there, but wonder if they are being used. I think they were put there by the AD binding program. I think that /etc/hosts isn’t used when you use network manager?
/etc/hosts is used by resolvconf
you probably have the base set that's used to resolve the machine itself
there’s the 127.0.0.1 localhost
yeah, that's needed to actually resolve the machine itself
but there’s also 127.0.1.1 computername.domain.name.of.the.ADserver
yeah, that's needed to make sure that the fqdn resolves
OK, thanks for that check, too.
So, I just tried to log in with my admin account on a client, and it doesn’t work. I can only log in with a user from the AD domain. I did unjoin my server from the AD domain, but still couldn’t log in. That’s really strange…
I had assumed that I could do that, that the only problem was with the student accounts on the remote AD.
did powerbroker override changes in nsswitch?
you'd need to look in both your name service config, as well as /etc/pam.d
I'd stay and help, but I have to go attend an ACM kickoff event in 5 minutes. Good luck and I'm sure there are others in the channel that can help with this portion.
I should head home too. Have a good one.
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didn't realize there was an IRC :'(
i've been struggling with what I assume is a relatively straightforward issue
I'm running pinet on ubuntu but the thin clients can't see the printer
i haven't pulled out all of my hair yet, but.... i'd appreciate any pointers
I've looked: help.ubuntu.com/community/UbuntuLTSP/localprinter
and a few similar pages, but so far no dice
I can't help you, but stick around and you'll be served
url: can't see the printer, or can't print to it
actually couldn't log into cups on the thin client
i just added root (poor form i know) to the lpadmin group in chroot, so i'm hoping that will help
i've just done the update-image, but i'm working remotely so i'm waiting on the guy to load an SD card for me
ah, good luck with it; its 0100 here so I think I'll be off for the night
haha, no worries, thanks anyways
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με πέταξε έξω
greek: Στο παρόν κανάλι μιλάνε μόνο Αγγλικά, για υποστήριξη στα Ελληνικά από την υπηρεσία Τεχνικής Στήριξης ΣΕΠΕΗΥ διαβάστε το http://ts.sch.gr/wiki/IRC και στη συνέχεια πληκτρολογήστε /j #ts.sch.gr
bobptz, είσαι σε λάθος κανάλι, είσαι στο #ltsp αντί του #ts.sch.gr
I know, but the system connected me here twice
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Hyperbyte: the first problem was that debian ships an ifup@.service, which unconditionally runs `ifdown -a`, i.e. brings down even interfaces that are required for root, for network swap etc
That's a regression from the previous implementation in init.d/networking, which properly checked for a network root/swap
By overriding the ifup@'s ExecStop= directive, that part of the problem is solved
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any ideas, why nbi.img is not created any more (debian jessie amd64) ?
TvR_: it hasn't been working since 5+ years
mkelfimage or something related was broken and the .nbi images were not bootable
You can manually install mkelfimage and have the .nbi images generated, although they still won't be bootable
then its something else... I tried to build jessie image for LTSP running wheezy - while wheezy image works, jessie clients have "file not found " error on startup
pxelinux.0 is served by tftp (checked with tftp client)
Check your tftp server logs, or /var/lib/tftpboot/ltsp/i386/
pxelinux.0 is quite downloadable with tftp client
sure, but you'll see exactly which file isn't
as it resides on both /srv/tftp/ltsp/i386 and /var/lib/tftboot/ltsp/i386
(e.g. the kernel, or pxelinux.cfg/default)
It's not only that one file
There are others downloaded via tftp
yep. all are there and can be downloaded with tftp client
Will it hurt you to check syslog which will tell you the exact file? :)
also, when I put wheezy image back and run ltsp-update-kernels, everything works again
nothing in syslog
which tftp server are you using?
Enable verbose in /etc/default/tftpd-hpa, and restart it
then check syslog again
thanks, will try
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Trying to troubleshoot a series of probs with ltsp-pnp fat clients.
Most basic problem, perhaps, is that when I put laptop on internal LAN it doesn’t pick up an IP. Yet, clients are still able to boot.
Another strange issue: Admin account (from server) can not log into a client, but people in the connected AD domain (via PowerBroker-open—which is the re-branded Likewise-opent), can.
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Finally, the least of the problems is that every time I reboot the computer I just re-do the series of commands to deal with the DNS issue as per the ltsp-pnp page: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
Oh, and I should mention that I have to add the districts dns address to: /etc/resolvconf/resolv.conf.d/head so that I can run powerbroker (the AD domain-binding software).
Anyone have an idea where to start??? :-)
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Hello all. I am trying to use epoptes for monitoring our digital signs. I have installed epoptes on my machine and epoptes-client on the client machine. When I run epoptes-client on the client machine it says it is connecting to my machine ip:789, however on my machine I never see any detected clients. I have followed the instructions from this site:http://www.2daygeek.com/manage-and-monitor-your-office-pc-with-epoptes-in-linux-mint-debian-
dgroos: do you use AD for anything else than logins?
vmlintu: no only authentication for logging in.
dgroos: do you have the users created locally?
When I check /etc/passwd/ I only see users created locally (just 2 users in addition to all the system users), yet when I’m at the login screen, I see everyone who has actually logged in to the system via local or via AD binding—maybe 40 users.
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All the AD logged-in users have home folders now in /home/local/DomainName/
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dgroos: are you using ldm or lightdm on the login screen?
don’t know what these are. how do i find out?
You see a list of AD users on login screen and you can select the user?
Does the login screen look different from normal ltsp?
Are the home directories on the client or on the server?
Sorry, I don’t remember for sure about the login screens, I think I’ve seen this before.
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Home dirs on on server—clients don’t have hard drives.
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The Admin account not being able to login to clients sounds like some nss/pam issue, but I've never seen PowerBroker or Likewise..
I've always done AD authentication with normal kerberos/ldap tools..
I’ve used likewise since 2011 and been very happy with it.
I’m wondering if I should try that and remove PB.
If you are not familiar with kerberos insides, I don't recommend doing it..
I’m not :-)
We don’t use kerberos, just AD.
AD uses kerberos
These tools are sometimes too clever and modify the system in ways that break some other usecases
The DNS issues sound separate from this
OK, starting there, why would I need to add something specifically to /etc/resolvconf/resolv.conf.d/head. Maybe I’ll turn PBIS off and try to get the client system to work with just local users, then add on powerbroker. One question,
Why would I keep having to re-apply the DNS solution on alkisg’s ltsp-pnp page upon each re-boot to solve the dns problem?
Is there something strange w/my setup?
The changes you've done to the image on the server are lost on clients?
I mean that when I reboot, unless I reapply the commands starting with: sudo -i
sed 's/^dns=dnsmasq/# Commented by ltsp-pnp: dns=dnsmasq/' \ …
the clients will not be able to boot.
and if I try to boot a client I get tons of these:
Sep 3 17:07:59 southsci1 in.tftpd: /tftpboot: No such file or directory
Sep 3 17:08:00 southsci1 in.tftpd: connect from 192.168.67.195 (192.168.67.195)
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my wild hunch is you're not getting a DHCP response configured for LTSP
"Sep 3 17:07:59 southsci1 in.tftpd: /tftpboot: No such file or directory" suggests it's trying to load from a hard-coded tftp location ... maybe.
and lightdm vs. ldm ... you'll get LDM by default unless you've gone out of your way to disable it
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vmlintu: OK: disconnected from AD. Removed nameserver info from: /etc/resolvconf/resolv.conf.d/head and rebooted server.
Hooked laptop to internal network and sure enough it did pick up an internal IP from the server’s DHCP.
However, I was not able to ping 220.127.116.11 from this laptop.
I then applied the sed 's/^dns=dnsmasq/# Commented by ltsp-pnp: dns=dnsmasq/' \ … commands, but still unable to ping out.
do you have one or two nics?
2 nics and have commented out the proxy setting.
you have a nat configured?
No. am using network manager as per https://help.ubuntu.com/community/UbuntuLTSP/StaticIP but, not seeing the check box for “Available to all users” which I figure did the auto set-up of NATting
I think 14.04 doesn’t have this checkbox in nm anymore.
Error: "network-manager" is not a valid command.
Error: "nm" is not a valid command.
available to all users doesn't do nat, I think.. It just shares the configuration to others
Oops, just saw the time, students arrive in 2 minutes… Need to adjust my high school science teacher hat ;-)
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Will try NATting during lunch break. Any recommendations for a good page on that? I think https://help.ubuntu.com/community/UbuntuLTSP/ThinClientHowtoNAT
won’t work for me since ltsp-pnp uses dnsmasq, right?
bye and thanks so much for your help vmlintu !
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Error: "sch-scripts" is not a valid command.
nat: To set up NAT on your LTSP server, see: https://help.ubuntu.com/community/UbuntuLTSP/ThinClientHowtoNAT
The operation succeeded.
!learn nat as To set up NAT in your LTSP server, set its internal IP to 192.168.67.1 and put http://bazaar.launchpad.net/~ts.sch.gr/sch-scripts/trunk/view/head:/debian/sch-scripts.if-up to /etc/network/if-up.d/sch-scripts
The operation succeeded.
The operation succeeded.
!learn nat as To set up NAT in your LTSP server, set its internal IP to 192.168.67.1 and put http://bazaar.launchpad.net/~ts.sch.gr/sch-scripts/trunk/view/head:/debian/sch-scripts.if-up to /etc/network/if-up.d/sch-scripts. This also takes care of flow-control issues, possibly increasing your network speed 10 times. :)
The operation succeeded.
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Error: "thanks" is not a valid command.
alkisg: I don’t have /etc/network/if-up.d/sch-scripts/ should I?
still trying to figure out why, after reboot, I have to re-apply the dns solutions on https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
dgroos: /etc/network/if-up.d/sch-scripts is where you will put that script, it's not a directory, it's the script name
? if I put the script in /etc/network/if-up.d/sch-scripts doesn’t that make sch-scripts a directory in /etc/network/if-up.d/? I’m not trying to nit-pick, just trying to understand.
back in an hour…
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dgroos: you're supposed to download http://bazaar.launchpad.net/~ts.sch.gr/sch-scripts/trunk/view/head:/debian/sch-scripts.if-up
then rename sch-scripts.if-up to sch-scripts without an extension
then put that file to /etc/network/if-up.d/
and run chmod +x /etc/network/if-up.d/sch-scripst
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hello ... have a question, can we publish just applicstions with LTSP?
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afternoon. Its possible to send shortcuts via epoptes ? lets say alt+space+x ?
Junior: you can run a utility to send keystrokes with epoptes
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i need to run it on clients or in the server ?
From the execute command of the epoptes gui
xautomate needs to be installed in the clients
great ill check
Junior: xautomation, not xautomate... the command you need is manpages.ubuntu.com/xte
yesterday i was with a problem on epoptes with 2 clients started with a red monitor on the server screen
today its all good
and now crashed again
Junior: what crashed, epoptes?
Do file a bug report with the apport output
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the client now appears as a red monitor and i cant see the screen
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work_alkisg: I believe I did as directed and get: ls -la /etc/network/if-up.d/ | grep sch
-rwxr-xr-x 1 root root 2424 Sep 4 12:32 sch-scripts.if-up
rebooted server, reapplied the commands for the DNS error as shown on the ltsp-pnp page.
Tried to log in on a client as admin and a session did not start—I was just returned to the login screen.
and… got to go back to teaching, back in 2 hours…
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looks like re-install time…
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re-installed 14.04.3, re-installed ltsp-pnp, and also added the improved ltsp-image-update files plus the bonus file: /etc/network/if-up.d/sch-scripts.
I’ve done nothing else to the fresh install.
The client boots! I can log in to the client with my admin account, I can ping 220.127.116.11, but can’t ping google.com. Therefore I figure a dns problem…
So, to check I put my laptop on the internal network, it did gain an 192.168.67.x ip AND was able to ping 18.104.22.168 AND was able to ping google.com. So, I figure dns info IS passing through on my 2 NIC server.
How can DNS info be passed through from the internal AND the client not be able to get DNS service to ping google.com? Any ideas?
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added district’s dns server to /etc/resolvconf/resolv.conf.d/head on the server, restarted network and dns, re-built image and client boots, admin account logs in, and from client can ping google.com :-)