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Could I use Samba to mount /home on fat-clients (LTSP 20.3) instead of SSHFS/NFS?
What about using NFSv4 instead of NFSv3?
I think the default for the current ltsp 20.3 is to mount using NFSv3 in Debian 10
Just wondering if anyone has tried NFSv4 with LTSP or am I going down a rabbit hole here?
i think it requires a working kerberos implementation or something
if so, definitely serious rabbit hole adventures
hmmm, ok thanks for the heads up
I need coffee before looking at this!
vagrantc: kerberos is optional
what would you get with nfsv4 that isn't in nfsv3?
I believe it would be faster
the main feature i've ever heard was authentication and encryption through kerberos
It has parallel high bandwidth access
Multiple operations per RPC
I'm just testing if this is true in a real world example
I'll let you know the results
Maybe I'll start a performance page on the ltsp wiki
what do you think?
go for it :)
I've tested and troubleshooted nfs performance, and I found a very serious bug that affected it since 10+ years, and I managed to get the kernel maintainers to fix it, and I put a workaround in LTSP code until the fix reaches distributions
Apart from that, I'm getting full network bandwidth utilization, so I don't think there's much room from improvement, either on nfs3 or 4
alkisg: Fair enough. From my tests of NFSv4 and different rsize & wsize and came to the same conclusion
alkisg: Have you tried samba?
for mounting /home
Without the bug fix, rsize and wsize can affect performance. With the bug fix, it's best to leave them to their default 1M sizes
No, I haven't tried samba
Since I'm already getting 1 gbps with minimum cpu usage, I don't think it can be optimized by something else
sshfs also gives 1 gbps, but wastes cpu and has some issues with file locks, so that one can be optimized, sure
but it's the default as it's secure
I'm more worried about lots of little files and random reads
I found a big difference in speed with NFSv3/4 & SSHFS, SSHFS was twice as slow in my test
NFS is better there as it's a kernel module, so it can finetune whatever it needs from file system cache
While sshfs is userspace, based on fuse
I think samba is userspace too, not sure
IF it applies you to, you may also try "loopback files as home dirs"
And then have ext4 inside the loopback file
systemd-homed is moving towards that direction, mainly for the encryption though
Ok cool. First I'll check out samba and see what the performance is like there
vagrantc: yey, I got upload rights in Ubuntu for ltsp/epoptes :)
alkisg: does that mean you can also schedule sync requests from debian?
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Yup, it does :)
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Hello. Can someone tell me why isn't dns hostnames available in thin client? As in i have separate dns server. All hostnames are working in ltsp server but not in thinclient.
Does the thin client have the correct dns server and search domain?
Compare systemd-resolve --status in server and clients
Server and client both have dns server in global section.
Tell me a DNS command that returns a different result on the server vs the client
E.g.: host mypc
When i try to ping some server in my network. In server i can ping like ping msfile. But in client i cannot ping.
Use the host command, not ping
And tell me the exact output
In server host msfile
msfile.ms.trafo.ee has address 172.16.1.201
And in client
Host msfile not found: 2(SERVFAIL)
Now in client try: host msfile.ms.trafo.ee
Like that it works.
(09:21:52 AM) alkisg: Does the thin client have the correct dns server and search domain? ==>
so I assume no search domai
(09:22:12 AM) alkisg: Compare systemd-resolve --status in server and clients => check search domain there
Yeah. Seems like search domain is missing. Where can i define that? ltsp.conf?
Normally, in your dhcp server
How do your clients get IP, and how does the server get IP?
Client gets ip with dnsmasq from ltsp server.
Then you need to put searchdomain in dnsmasq
I don't know the syntax off-hand, but it should be in the man page
Okay. I will take a look.
Thank you for your help.
Quick googling says either #domain=thekelleys.org.uk or dhcp-option-force=option:domain-search,internal,maindomain.com
NecTal: you might also want to file a bug report in ltsp for this, it would probably be worth it to add it as an example to the default dnsmasq.conf
bug: To file a bug report for upstream LTSP, go to https://github.com/ltsp/ltsp/issues
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vagrantc: yup, syncing with debian is also included
Btw, epoptes has a problem with the new socat, due to a bug in socat,
which is fixed in the new bug-fixing upstream socat version,
I wonder if it would be easy to ask the debian maintainer to package that new bug fixing version...
Specifically, right click on client, open terminal, root locally => the arrow keys etc don't work in that terminal
alkisg: doesn't hurt to ask :)
alkisg: you could submit a normal bug and mark that it "affects" epoptes
Gotcha. I'm waiting for a second feedback from the socat developer; I'll file the bug report after I get it
I've no idea how to tag "affects" on the debian bug tracker, but I guess I'll find it
include the line "Control: affects -1 epoptes" in your submission email
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Hi, I'm trying to install LTSP on Debian buster running on a Pine64. I can't download the LTSP:PPA, this link does not work for me https://ltsp.org/misc/ltsp-ubuntu-ppa-focal.list
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ArcticWolfen: whoops, please put bionic instead of focal and I'll fix it tomorrow
it's the same for now
That did it installing now
ArcticWolfen: I managed to omit them in the last push; I fixed it now; it should appear online in a minute
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hello people, I'm looking for a solution for ltsp for example in different city.
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