IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 15 February 2018 (all times are UTC)
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| 07:03 | <lucascastro> !cheapclient
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| 07:03 | <ltsp> I do not know about 'cheapclient', but I do know about these similar topics: 'cheap-client'
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| 07:03 | <lucascastro> help
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| 07:03 | <alkisg> !chear-client
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| 07:03 | <ltsp> I do not know about 'chear-client', but I do know about these similar topics: 'cheap-client'
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| 07:03 | <alkisg> !cheap-client
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| 07:03 | <ltsp> cheap-client: https://www.gearbest.com/tv-box-c_11262/nt1_windows~10/
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| 07:03 | <lucascastro> !cheap-client
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| 07:03 | <ltsp> cheap-client: https://www.gearbest.com/tv-box-c_11262/nt1_windows~10/
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| 07:04 | <lucascastro> alkisg: thanks
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| 07:04 | <alkisg> np
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| 07:04 | If you buy one of those, tell me how it fares
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| 07:05 | <lucascastro> I really want to buy, but living in Brazil, everything get too delayed.
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| 07:05 | But I think I'm going to buy one
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| 07:06 | I'm right now build some modules to banana pi just to check the performance, but really preffer something like that at cheap-client
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| 07:07 | <alkisg> I don't know about banana pi, but raspberry pi is 10-20 times slower than those, and 50 times slower than an i3
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| 07:07 | <lucascastro> building video drive related
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| 07:07 | <alkisg> So rpi isn't really suitable for a desktop computer
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| 07:08 | <lucascastro> nor banana pi, but I have some of it.
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| 07:10 | So, I'm going to bed right now.
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| 07:10 | 4:10 am right now.
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| 07:11 | <alkisg> Good night :)
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| 07:14 | <lucascastro> I'm supposed to finish the drive build tomorrow, I'll tell about that
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| 15:10 | <stlord> Greetings. I built LTSP-standalone server with tftpd-hpa and isc-dchp included. Everything went ok, but when I got my client started, I found, it can't access network. It getting IP from dhcp server, netmask and no more. No default gw, no ping gw ip, though gw is in the same network. Pinging LTSP server is ok. When i'm going to "Edit connections" on client, I see no connections at all, but I can create one and assign the only physical
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| 15:13 | <fiesh> and your dhcpd advertises the default gw and nameserver?
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| 15:17 | <||cw> stlord: are you using ltsp-manager?
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| 15:19 | <stlord> this is my dhcpd.conf
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| 15:19 | ode: subnet 192.168.88.0 netmask 255.255.255.0 { range 192.168.88.20 192.168.88.120; option domain-name-servers 8.8.8.8; option broadcast-address 192.168.88.255; option routers 192.168.88.1; next-server 192.168.88.201; option subnet-mask 255.255.255.0; option root-path "/opt/ltsp/amd64";
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| 15:19 | if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" { filename "/ltsp/amd64/pxelinux.0"; } else { filename "/ltsp/amd64/nbi.img"; } }
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| 15:19 | and i'm not using ltsp-manager
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| 15:21 | <fiesh> maybe try using some device other than a thin client, run tcpdump on it, then start the dhcp lookup, and see if it's properly advertised? that way you can rule out whether it's a server or client problem
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| 15:21 | <||cw> stlord: ltsp-manager is highly recommended for new installs
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| 15:22 | <stlord> this server is the only dhcp server in the network, other windows clients with dhcp assigned addr working good
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| 15:22 | pity, i have no other linux clients
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| 15:25 | <fiesh> well if the windows clients work and they use the same dhcp server, I'd assume the server is fine then
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| 15:25 | so what's /etc/resolv.conf say on the clients?
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| 15:26 | or restart the dhcp on the client and log while it's doing it
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| 15:26 | or dhcpcd -d eth0 or so, to see what's going on
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| 15:27 | <stlord> resolv.conf (as symlink) says "nameserver 8.8.8.8"
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| 15:28 | <alkisg> Is this a 2-nic setup on the ltsp server?
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| 15:28 | <stlord> no, only one nic
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| 15:28 | <alkisg> Open a terminal on the client, and type these commands, and paste the output here
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| 15:29 | hostname; ip a
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| 15:29 | *the output in pastebin
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| 15:30 | <fiesh> then the nameserver works, so it's only the default route that doesn't
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| 15:31 | <stlord> alkisg, it may take a while
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| 15:31 | <alkisg> OK
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| 15:52 | <stlord> hostname ltsp49
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| 15:53 | 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever
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| 15:53 | 2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether fc:45:96:ad:f6:eb brd ff:ff:ff:ff:ff:ff inet 192.168.88.49/24 brd 192.168.88.255 scope global enp2s0 valid_lft forever preferred_lft forever inet6 fe80::fe45:96ff:fead:f6eb/64 scope link valid_lft forever preferred_lft forever
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| 15:53 | 3: wlp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000 link/ether 58:00:e3:c2:74:e7 brd ff:ff:ff:ff:ff:ff
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| 15:55 | there's no dhcpcd service
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| 15:57 | <alkisg> stlord: which ubuntu/ltsp version is that?
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| 15:58 | or distro/version...
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| 15:58 | <stlord> 16.04
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| 15:59 | <alkisg> Do you have root access to the client?
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| 15:59 | <stlord> yep
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| 15:59 | ssh in
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| 15:59 | <alkisg> Can you try to manually set the gateway and see if that's all that's missing?
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| 15:59 | ip add default gw etc etc
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| 16:00 | also on the client try: /usr/lib/klibc/bin/ipconfig -n enp2s0
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| 16:03 | <stlord> root@ltsp49:/etc/init.d# route add default gw 192.168.88.1 SIOCADDRT: File exists
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| 16:03 | <fiesh> what does netstat -r say?
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| 16:04 | <stlord> nothing, even a zero
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| 16:04 | wait
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| 16:04 | <fiesh> nothign?!
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| 16:04 | <stlord> get it
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| 16:05 | Destination Gateway Genmask Flags MSS Window irtt Iface
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| 16:05 | default 192.168.88.1 0.0.0.0 UG 0 0 0 enp2s0
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| 16:05 | 192.168.88.0 * 255.255.255.0 U 0 0 0 enp2s0
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| 16:06 | <fiesh> then the default gateway is successfully set
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| 16:06 | <stlord> ipconfig -n enp2s0 :
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| 16:06 | <fiesh> what does ping 8.8.8.8 do?
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| 16:06 | <stlord> address: 192.168.88.114 broadcast: 192.168.88.255 netmask: 255.255.255.0 gateway: 192.168.88.1 dns0 : 8.8.8.8 dns1 : 0.0.0.0 rootserver: 192.168.88.201 rootpath: /opt/ltsp/amd64 filename : /ltsp/amd64/nbi.img
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| 16:07 | --- 8.8.8.8 ping statistics --- 7 packets transmitted, 0 received, 100% packet loss, time 6024ms
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| 16:07 | it can't ping 88.1 even
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| 16:21 | <alkisg> can you ping the ltsp server? can you ping a windows pc?
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| 16:21 | also your ltsp server is dhcp but not gateway?
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| 16:22 | <stlord> yes, for all these quesions
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| 16:23 | it looks like ltsp client can not connect with my mikrotik gateway only
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| 16:23 | <fiesh> and you cannot ping the gateway?
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| 16:23 | but the windows boxes can?
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| 16:23 | <alkisg> and the ltsp server can ping the gateway?
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| 16:23 | Because it's possible that the gateway is configured not to reply to pings...
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| 16:23 | <stlord> yes, it can
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| 16:24 | also i can ping client from any windows pc
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| 16:24 | and in other direction too
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| 16:25 | <alkisg> Can you try booting the client from an ubuntu live cd?
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| 16:25 | <fiesh> your gateway doesn't act as a dhcp server as well, leading to race conditions about which dhcp server replies first?
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| 16:25 | <alkisg> (or usb)
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| 16:26 | <stlord> well, i
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| 16:26 | i'll try to boot usb now
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| 16:26 | and i have no more dhcp servers in network
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| 16:27 | mikrotik dhcp is disabled
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| 16:27 | <alkisg> I assume that the gateway doesn't blacklist the client somehow... :D
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| 16:30 | <stlord> heh ), it has been resetted 2 days ago, so... no )
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| 16:31 | well, booting from usb, pinging 8.8.8.8 ---> ok
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| 16:35 | <alkisg> And now compare the output of ip a and pi r
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| 16:35 | ip r
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| 16:35 | (as a thin client and from the live cd)
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| 16:51 | <stlord> well, that is the differences:
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| 16:51 | <stlord> client:
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| 16:52 | on enp2s0
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| 16:52 | inet 192.168.88.114/24 brd 192.168.88.255 scope global enp2s0
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| 16:52 | valid_lft forever preferred_lft forever
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| 16:52 | on live:
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| 16:53 | inet 192.168.88.114/24 brd 192.168.88.255 scope global dynamic enp2s0
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| 16:53 | valid_lft 40993sec preferred_lft 40993sec
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| 16:53 | ip r:
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| 16:53 | client:
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| 16:53 | default via 192.168.88.1 dev enp2s0 192.168.88.0/24 dev enp2s0 proto kernel scope link src 192.168.88.114
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| 16:53 | live:
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| 16:53 | default via 192.168.88.1 dev enp2s0 proto static metric 100 169.254.0.0/16 dev enp2s0 scope link metric 1000 192.168.88.0/24 dev enp2s0 proto kernel scope link src 192.168.88.114 metric 100
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| 16:57 | well, that's the magic...
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| 16:57 | now client can ping everything, that is possible to ping...
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| 16:57 | idk what's going on
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| 16:58 | maybe addr 88.49 is broken, maybe something else
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| 16:58 | <alkisg> Maybe that could be a good reason to switch to dnsmasq :D
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| 16:58 | <stlord> i'll do )
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| 16:59 | this system is just for testing purposes
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| 16:59 | anyway, thank you very much for help
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| 16:59 | good luck
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| 17:00 | <alkisg> !ltsp-manager
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| 17:00 | <ltsp> ltsp-manager: LTSP Manager is a GUI tool that makes LTSP maintenance easy. It's the recommended way to install LTSP in common setups. More info: http://wiki.ltsp.org/wiki/Ltsp-manager
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| 17:00 | <alkisg> ...this is the most supported scenario nowadays
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