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


Channel log from 9 July 2017   (all times are UTC)

05:34alkisg has joined IRC (alkisg!~alkisg@2a02:2149:821d:b300:1142:8087:ac70:a4cf)
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09:49
<v4169sgr>
Hello, I've just installed ltsp on a running amd64 install of 16.04 using "apt-get install ltsp-server-standalone; ltsp-build-client --arch i386; ltsp-config dnsmasq" and now my thin clients cannot find the server. What am I missing ? My dnsmasq config is right for i386 clients. But I can't remember where lts.conf is :)
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10:03
<david___>
Hey ! I used to work with Remix Os for pc for a year.It worked correctly until now. Unfortunately yesterday I pressed "fn" key on my keyboard to volume up my laptop.After that the Remix Os logo showed up.As I did not have any time to boot up I pressed and kept the power key to shut down my laptop.Now when I want to boot into Remix OS it just stuck at the "Remix Os" logo.What would you recommend?Please help me as soon as possible. Since
10:03
hey Is there any one here?
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10:05
<david___>
bye
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10:13
<alkisg>
v4169sgr: what's the last message that you see on your clients and on your syslog?
10:13
lts.conf isn't related, as the clients should be able to boot without it fine
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10:28
<v4169sgr>
Hi alkisg, thanks for the reply, the client's aren't finding the server, so I am missing something pretty fundamental. It's probably me being stupid. There's no message in syslog, and the clients are left spinning on the DHCP prompt.
10:39
<alkisg>
v4169sgr: on the server syslog, do you see a dnsmasq line that it does proxydhcp on that request?
10:39
<v4169sgr>
Unfortunately I see nothing in the syslog at the time the client tries to connect.
10:40
<alkisg>
You only have 1 nic on your server, and you have an external router or device doing dhcp?
10:41
<v4169sgr>
correct, the server is at 10.0.0.1 and the unmodifiable router is at 10.0.0.138, offering dhcp
10:41
<alkisg>
Do you see an offer in the router logs?
10:41
(a dhcp offer)
10:41
<v4169sgr>
my NetworkManager.conf looks like this:
10:41
[main]
10:41
plugins=ifupdown,keyfile,ofono
10:41
dns=dnsmasq
10:41
[ifupdown]
10:41
managed=false
10:41
is that relevant ?
10:41
No offer is seen
10:42
<alkisg>
If your router doesn't send a dhcp offer, then it's a misconfiguration on the router, or the cables etc
10:42
If the router does send an offer, and the ltsp server dnsmasq doesn't attach its own proxydhcp offer, then it's a dnsmasq misconfiguration
10:43
<v4169sgr>
likely the second, as nothing has changed for the first
10:43
<alkisg>
What's the output of `ps -fC dnsmasq; sudo netstat -nap | grep dnsmasq` on the server?
10:43
<v4169sgr>
any idea how I can troubleshoot?
10:43
ok
10:43
UID PID PPID C STIME TTY TIME CMD
10:43
nobody 1274 926 0 11:06 ? 00:00:00 /usr/sbin/dnsmasq --no-resolv --
10:43
tcp 0 0 127.0.1.1:53 0.0.0.0:* LISTEN 1274/dnsmasq
10:43
udp 0 0 0.0.0.0:38407 0.0.0.0:* 1274/dnsmasq
10:43
udp 0 0 127.0.1.1:53 0.0.0.0:* 1274/dnsmasq
10:43
unix 3 [ ] STREAM CONNECTED 21709 1274/dnsmasq
10:43
unix 2 [ ] DGRAM 21715 1274/dnsmasq
10:43
<alkisg>
!pastebin
10:43
<ltsp`>
pastebin: try !paste
10:44
<v4169sgr>
!paste
10:44
<ltsp`>
paste: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
10:44
<alkisg>
!paste
10:44
<ltsp`>
paste: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
10:44
<alkisg>
It sounds like you didn't follow all the steps to tell ubuntu NOT to use dnsmasq as a local resolver
10:44
See the steps from the ltsp-pnp page
10:44
!ltsp-pnp
10:44
<ltsp`>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
10:44
<v4169sgr>
https://pastebin.com/VhiMf7aK
10:45
<alkisg>
So now network manager runs dnsmasq for you, and the real dnsmasq from ltsp can't run because the address is already taken
10:45
dnsmasq 1175 1 0 08:29 ? 00:00:00 /usr/sbin/dnsmasq -x /var/run/dnsmasq/dnsmasq.pid -u dnsmasq -r /var/run/dnsmasq/resolv.conf -7 /etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new --local-service
10:46
This is the correct dnsmasq line, when the service runs properly
10:46
Read the ltsp-pnp page
10:46
<v4169sgr>
Thanks, I have the page, which bit of the config do you think I am missing ? "DNS issues" ?
10:46
<alkisg>
Yes
10:46
!ltsp-pnp
10:46
<ltsp`>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
10:47
<alkisg>
sed 's/^dns=dnsmasq/# Commented by ltsp-pnp: dns=dnsmasq/' \ -i /etc/NetworkManager/NetworkManager.conf
10:47
service network-manager restart
10:47
etc etc, read the section
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10:54
<v4169sgr>
I don't have a dnsmasq service ....
10:54
sudo service dnsmasq restart
10:54
Failed to restart dnsmasq.service: Unit dnsmasq.service not found.
10:54
I am not runnjijng ltsp-pnp
10:55
brb ....
11:04
<alkisg>
You're not running ltsp-pnp, but you did say you're running dnsmasq
11:04
So, you need the dnsmasq service then
11:06
I.e. you're essentially running ltsp-pnp, just not the ltsp-update-image -c / part...
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11:22
<highvoltage>
0;92;19m1/win 47
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12:29
<v4169sgr>
Hello, still having issues with clients not connecting. Something wrong I think with dnamasq, but really no idea what or how to troubleshoot. I have followed "apt-get install ltsp-server-standalone; ltsp-build-client --arch i386; ltsp-config dnsmasq", then have installed dnsmasq, and have specified DNSMASQ_EXCEPT=lo in /etc/default/dnsmasq, while adding DNS_SERVER="<my router>" to /opt/ltsp/i386/etc/
12:30
At the moment the dnsmasq service is not even running: "dnsmasq: illegal repeated keyword at line 56 of /etc/dnsmasq.d"/ltsp-server-dnsmasq.conf
12:32
Using the "suggested method" under "DNS issues" in https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp breaks my DNS, so I cannot use that.
12:33
Would be grateful for any pointers, just please bear in mind i am likely to misunderstand references to man pages or already written guides.
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12:53
<v4169sgr1>
Hello, sorry for dropping out a lot, having some frustrating issues
12:54
@alkisg I am afraid I am still having issues, and don't understand why
12:54
It seems that the workarounds in https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp don't work or don't seem to apply to me, so I am stumped
12:56
At the moment I am seeing dnsmasq: illegal repeated keyword at line 56 of /etc/dnsmasq.d/ltsp-server-dnsmasq.conf when trying to start the dnamasq servicew
12:57
Content of file here: https://pastebin.com/ZFNVJk3q
12:57
all I am trying to do is use dnsmasq with a vanilla install of ltsp-server-standalone on ubuntu 16.04
12:58
so I can actually use thin clients on a single NIC server with an unconfigurable DNA on the router
13:04
*DHCP server
13:11
<alkisg>
v4169sgr1: what you're trying to do is ltsp-pnp except for 1 command
13:11
So just follow the instructions on that page, and don't run ltsp-update-image -c /
13:14
They work fine in my 16.04 installations
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13:56
<v4169sgr>
@alkisg: I am following your documentation step by step: on the service dnsmasq restart line I am seeing "Job for dnsmasq.service failed because the control process exited with error code". Investigation shows: "dnsmasq: failed to create listening socket for 10.0.0.100: Address already in use". Why is this?
13:56
<alkisg>
v4169sgr: because you didn't do the rest of the steps at the dns issues section
13:56
(or, you didn't do them correctly...)
13:56
I.e. the ubuntu's local-resolver dnsmasq is still running
13:57
<v4169sgr>
I believe I have, which file should I put in pastebin for you to have a look at?
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13:58
<alkisg>
v4169sgr: sorry, it takes a lot of time to go through all the things that could go wrong via irc..
13:58
Sometimes remote support is needed instead
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