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


Channel log from 9 January 2020   (all times are UTC)

00:36donkey has left IRC (donkey!ad0e3e49@173-14-62-73-Michigan.hfc.comcastbusiness.net, Remote host closed the connection)
00:42Ark74 has left IRC (Ark74!~Luis@177.238.145.140, Quit: Leaving)
00:49Ark74 has joined IRC (Ark74!~Luis@177.238.145.140)
03:07Ark74 has left IRC (Ark74!~Luis@177.238.145.140, Quit: Leaving)
04:08shored has left IRC (shored!~shored@87-92-122-167.bb.dnainternet.fi, Read error: Connection reset by peer)
04:08shored has joined IRC (shored!~shored@87-92-122-167.bb.dnainternet.fi)
04:37GodFather has left IRC (GodFather!~rcc@wsip-66-210-242-210.ph.ph.cox.net, Ping timeout: 265 seconds)
04:43GodFather has joined IRC (GodFather!~rcc@wsip-66-210-242-210.ph.ph.cox.net)
05:08Freejack has left IRC (Freejack!~Freejack@unaffiliated/freejack, Ping timeout: 268 seconds)
05:12Freejack has joined IRC (Freejack!~Freejack@unaffiliated/freejack)
06:01statler has joined IRC (statler!~Georg@p5B30EE2F.dip0.t-ipconnect.de)
07:30woernie has joined IRC (woernie!~werner@p578bb7b6.dip0.t-ipconnect.de)
09:02statler has left IRC (statler!~Georg@p5B30EE2F.dip0.t-ipconnect.de, Remote host closed the connection)
09:11kjackal has joined IRC (kjackal!~quassel@2a02:587:3115:3000:e98f:2dfa:98cd:5f0)
09:37statler has joined IRC (statler!~Georg@gwrz.lohn24.de)
10:01vagrantc has left IRC (vagrantc!~vagrant@unaffiliated/vagrantc, Quit: leaving)
11:19section1 has joined IRC (section1!~section1@178.33.109.106)
11:44hypermeo is now known as megameo
12:11mgariepy has joined IRC (mgariepy!~mgariepy@ubuntu/member/mgariepy)
12:47woernie has left IRC (woernie!~werner@p578bb7b6.dip0.t-ipconnect.de, Remote host closed the connection)
13:37megameo is now known as minimeo
15:12kjackal has left IRC (kjackal!~quassel@2a02:587:3115:3000:e98f:2dfa:98cd:5f0, Ping timeout: 246 seconds)
15:13kjackal has joined IRC (kjackal!~quassel@athedsl-238118.home.otenet.gr)
15:46gvy has left IRC (gvy!~mike@altlinux/developer/mike, Ping timeout: 265 seconds)
15:49gvy has joined IRC (gvy!~mike@altlinux/developer/mike)
17:54statler has left IRC (statler!~Georg@gwrz.lohn24.de, Remote host closed the connection)
18:59mgariepy has left IRC (mgariepy!~mgariepy@ubuntu/member/mgariepy, Ping timeout: 240 seconds)
18:59section1 has left IRC (section1!~section1@178.33.109.106, Remote host closed the connection)
19:02kjackal has left IRC (kjackal!~quassel@athedsl-238118.home.otenet.gr, Ping timeout: 265 seconds)
19:03woernie has joined IRC (woernie!~werner@165-193-142-46.pool.kielnet.net)
19:19Ark74 has joined IRC (Ark74!~Luis@177.238.145.140)
19:23vagrantc has joined IRC (vagrantc!~vagrant@unaffiliated/vagrantc)
19:42kjackal has joined IRC (kjackal!~quassel@2a02:587:3115:3000:e941:141d:13d7:62e0)
19:48douglas_br has joined IRC (douglas_br!bb5f6554@187.95.101.84)
19:48
<douglas_br>
hello all
19:51douglas_br has left IRC (douglas_br!bb5f6554@187.95.101.84, Remote host closed the connection)
20:29dgroos has joined IRC (dgroos!~dgroos@205.215.175.117)
20:32
<dgroos>
Hi. Anyone ever had the problem on Fat Clients in a 2 NIC setup where Google Chrome is unable to go to any web site even google.com?
20:33
<vagrantc>
can other programs have internet access?
20:33
<dgroos>
Firefox has no problems getting to any page.
20:33
<vagrantc>
huh.
20:33
<dgroos>
:-)
20:33
<vagrantc>
probably google trying to phone home and failing for some odd reason
20:33
wild speculation :)
20:34
<mwalters>
what error does chrome give?
20:34
<dgroos>
And it's strange, it can be working fine for a student and after 10 minutes the problem arises. I'll post a screen shot...
20:34
I bet! hadn't though of that...
20:34
Just a bit, I'll post the screen shot...
20:35
<vagrantc>
is your NAT firewalling very permissive, or does it restrict any ports, etc. ?
20:36
<dgroos>
good point too, I'll check on that...
20:36
but... what's the recommended site for sharing images here?
20:37
(BTW, howdy @vagrantc !)
20:37
<vagrantc>
pick your favorite
20:37* vagrantc waves
20:37* alkisg waves There's also the new kid on the block, called "DNS over HTTPS", check if either of those browsers has it enabled
20:37
<mwalters>
not sure there is one... imgur is probably fine if you're fine with it being on imgur ;)
20:38
<vagrantc>
dns over https ... wow.
20:38
<dgroos>
ok! I'll check imgur out, not familiar w/it
20:38
<mwalters>
ah yes, I thought google was going to force it to their own servers in chrome
20:38
<dgroos>
(and hi @alkisg and @mwalters too!)
20:38
<mwalters>
although, I think firefox is investigating doing the same, but with a more "open process" regarding which dns servers
20:39
...somehow ended up with cloudflare's I think?
20:39
<alkisg>
I've tested firefox's, it works fine with cloudflare
20:39
<mwalters>
I suspect a janky 2nic config
20:40
s/janky/incorrect
20:40
but that probably doesn't make sense if it's happening on the client... dunno
20:40
<dgroos>
https://imgur.com/ajMe8uZ
20:41
<alkisg>
And if you open a terminal right there, does ping google.com work?
20:44
<dgroos>
@alkisg, I can check the last ping check idea, I'll have to check how to check if the browsers have "DNS over HTTPS" enabled. I will have to search for a client that has this chrome problem at the moment (thanks to some students who didn't log out :-)
20:47
--- google.com ping statistics ---
20:47
5 packets transmitted, 5 received, 0% packet loss, time 4005ms
20:47
rtt min/avg/max/mdev = 11.556/19.795/31.538/7.255 ms
20:48
<alkisg>
No IP there?
20:48
Is it safesearch?
20:48
<dgroos>
there? I did the ping in terminal
20:49
<alkisg>
Oh I meant that you would paste the google.com ip here so that we see if your organization has google safesearch enabled or not
20:49
Anyways, need to leave, sorry!
20:49* alkisg waves again :)
20:50
<dgroos>
:-) Thanks and Bye!
20:51
but, not a filter issue, the same site is reachable w/firefox.
20:53
But, this sparked idea and I see the problem is ONLY with google.com!
20:54
I type in a google search for "dog" and I get the dns error.
20:55
I type dog.com and it goes immediately to the site!
20:56
<vagrantc>
wow, chrome only blocking google. AWESOME!
20:56
<dgroos>
:-D
20:56
<vagrantc>
"we detected a large amount of unsolicited advertizing very disturbingly tuned to your particular profile... and decided to block it"
20:58
<dgroos>
I wonder, is it possible that it appears to google.com that all the traffic coming from my classroom is from a single computer?
20:58
Here's the error message:
20:58
www.google.com’s server IP address could not be found.
20:58
DNS_PROBE_FINISHED_NXDOMAIN
20:58
<vagrantc>
if you're using NAT, definitely.
20:59
that's what NAT does
20:59
<dgroos>
ummmm www.google.com's server IP address could not be found.
20:59
DNS_PROBE_FINISHED_NXDOMAIN
20:59
I am (2 NIC setup)
20:59
I've had this problem, occasionally, over the last 6+ years.
21:00
But it never happens on the teacher computer, only clients
21:01
<vagrantc>
could you plug a laptop into the client network and see if it happens to them too?
21:01
e.g. using the same NAT, but not the same configuration
21:02
<dgroos>
sure, I'll try right now. It doesn't always happen but let's see...
21:02
<vagrantc>
could also be some sort of DNS proxy caching error?
21:03
are you using dnsmasq? does it have multiple upstream DNS servers configured, and are they both working?
21:03
something like that, maybe
21:05
<dgroos>
I am using dnsmasq. Would I check this in network manager on the teacher computer?
21:09
<vagrantc>
not sure off the top of my head to check how dnsmasq is configured
21:09
e.g. it might be running and only serving up dns to the clients and not the teacher compuer
21:10
<dgroos>
I just went to network manager. The internet-facing NIC has 2 dns servers, an internal to our district IP and 8.8.8.8
21:10
I'm going to check on a client...
21:13
<vagrantc>
i think dnsmasq will query both dns servers and use whichever it gets the first response from, and then possibly cache that for a while ... which could explain why it sometimes works for some machines
21:13
<dgroos>
interesting...
21:13kjackal has left IRC (kjackal!~quassel@2a02:587:3115:3000:e941:141d:13d7:62e0, Ping timeout: 246 seconds)
21:14
<dgroos>
So, I wonder which is more likely to be causing this particular problem? I'll try using just 1 at a time...
21:15
If I restart networking (sudo service networking restart?) on the server after changing the dns entries in nm on the teacher client, I wonder if it will mess things up with connecting to the clients?
21:16
is there a better way to test?
21:18
Also, service restart networking OR systemctl restart networking?
21:42douglas_br has joined IRC (douglas_br!b1dcb009@177.220.176.9)
21:42
<dgroos>
or... sudo systemctl restart networking.service (I'll try when students in after school study have left :-)
21:43
<douglas_br>
hello all
21:44
<vagrantc>
dgroos: either work, "service" basically just calls the appropriate systemctl command when running systemd
21:45
and it's certainly easier to type...
21:47
<douglas_br>
I would like to know about sombebody use Linux Mint? I am trying do other ltsp server with Mint. But when client up, it show uncompressor error or stop at check after ipxe part and stop in this part
21:48
<dgroos>
Ah, thanks @vagrantc
21:48
<douglas_br>
so what do you thing about Mint (last version 19.3 64 bits)
21:48
think
21:51woernie has left IRC (woernie!~werner@165-193-142-46.pool.kielnet.net, Remote host closed the connection)
21:52douglas_br has left IRC (douglas_br!b1dcb009@177.220.176.9, Remote host closed the connection)
22:00douglas_br has joined IRC (douglas_br!b1dcb009@177.220.176.9)
22:00
<douglas_br>
sorry
23:42douglas_br has left IRC (douglas_br!b1dcb009@177.220.176.9, Remote host closed the connection)