IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 9 July 2017 (all times are UTC)
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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
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| 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?
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| 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.
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| 10:39 | <alkisg> v4169sgr: on the server syslog, do you see a dnsmasq line that it does proxydhcp on that request?
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| 10:39 | <v4169sgr> Unfortunately I see nothing in the syslog at the time the client tries to connect.
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| 10:40 | <alkisg> You only have 1 nic on your server, and you have an external router or device doing dhcp?
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| 10:41 | <v4169sgr> correct, the server is at 10.0.0.1 and the unmodifiable router is at 10.0.0.138, offering dhcp
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| 10:41 | <alkisg> Do you see an offer in the router logs?
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| 10:41 | (a dhcp offer)
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| 10:41 | <v4169sgr> my NetworkManager.conf looks like this:
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| 10:41 | [main]
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| 10:41 | plugins=ifupdown,keyfile,ofono
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| 10:41 | dns=dnsmasq
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| 10:41 | [ifupdown]
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| 10:41 | managed=false
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| 10:41 | is that relevant ?
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| 10:41 | No offer is seen
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| 10:42 | <alkisg> If your router doesn't send a dhcp offer, then it's a misconfiguration on the router, or the cables etc
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| 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
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| 10:43 | <v4169sgr> likely the second, as nothing has changed for the first
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| 10:43 | <alkisg> What's the output of `ps -fC dnsmasq; sudo netstat -nap | grep dnsmasq` on the server?
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| 10:43 | <v4169sgr> any idea how I can troubleshoot?
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| 10:43 | ok
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| 10:43 | UID PID PPID C STIME TTY TIME CMD
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| 10:43 | nobody 1274 926 0 11:06 ? 00:00:00 /usr/sbin/dnsmasq --no-resolv --
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| 10:43 | tcp 0 0 127.0.1.1:53 0.0.0.0:* LISTEN 1274/dnsmasq
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| 10:43 | udp 0 0 0.0.0.0:38407 0.0.0.0:* 1274/dnsmasq
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| 10:43 | udp 0 0 127.0.1.1:53 0.0.0.0:* 1274/dnsmasq
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| 10:43 | unix 3 [ ] STREAM CONNECTED 21709 1274/dnsmasq
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| 10:43 | unix 2 [ ] DGRAM 21715 1274/dnsmasq
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| 10:43 | <alkisg> !pastebin
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| 10:43 | <ltsp`> pastebin: try !paste
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| 10:44 | <v4169sgr> !paste
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| 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.
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| 10:44 | <alkisg> !paste
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| 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.
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| 10:44 | <alkisg> It sounds like you didn't follow all the steps to tell ubuntu NOT to use dnsmasq as a local resolver
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| 10:44 | See the steps from the ltsp-pnp page
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| 10:44 | !ltsp-pnp
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| 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
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| 10:44 | <v4169sgr> https://pastebin.com/VhiMf7aK
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| 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
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| 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
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| 10:46 | This is the correct dnsmasq line, when the service runs properly
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| 10:46 | Read the ltsp-pnp page
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| 10:46 | <v4169sgr> Thanks, I have the page, which bit of the config do you think I am missing ? "DNS issues" ?
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| 10:46 | <alkisg> Yes
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| 10:46 | !ltsp-pnp
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| 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
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| 10:47 | <alkisg> sed 's/^dns=dnsmasq/# Commented by ltsp-pnp: dns=dnsmasq/' \ -i /etc/NetworkManager/NetworkManager.conf
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| 10:47 | service network-manager restart
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| 10:47 | etc etc, read the section
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| 10:54 | <v4169sgr> I don't have a dnsmasq service ....
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| 10:54 | sudo service dnsmasq restart
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| 10:54 | Failed to restart dnsmasq.service: Unit dnsmasq.service not found.
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| 10:54 | I am not runnjijng ltsp-pnp
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| 10:55 | brb ....
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| 11:04 | <alkisg> You're not running ltsp-pnp, but you did say you're running dnsmasq
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| 11:04 | So, you need the dnsmasq service then
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| 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/
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| 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
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| 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.
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| 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
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| 12:54 | @alkisg I am afraid I am still having issues, and don't understand why
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| 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
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| 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
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| 12:57 | Content of file here: https://pastebin.com/ZFNVJk3q
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| 12:57 | all I am trying to do is use dnsmasq with a vanilla install of ltsp-server-standalone on ubuntu 16.04
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| 12:58 | so I can actually use thin clients on a single NIC server with an unconfigurable DNA on the router
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| 13:04 | *DHCP server
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| 13:11 | <alkisg> v4169sgr1: what you're trying to do is ltsp-pnp except for 1 command
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| 13:11 | So just follow the instructions on that page, and don't run ltsp-update-image -c /
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| 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?
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| 13:56 | <alkisg> v4169sgr: because you didn't do the rest of the steps at the dns issues section
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| 13:56 | (or, you didn't do them correctly...)
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| 13:56 | I.e. the ubuntu's local-resolver dnsmasq is still running
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| 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..
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| 13:58 | Sometimes remote support is needed instead
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