#arpnetworks/ 2014-12-10,Wed

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WhoWhatWhen
plettmercutio: I upgraded one of my Debian VMs to Jessie last night and got systemd. It's my first time using it, and it seems fine so far
The first thing I noticed about it is that just setting "console=ttyS0" in the grub boot loader is enough for it to do everything right and start a getty on that tty, which saved me having to do it
[03:00]
mercutioplett: does "systemd-analyze blame" work ?
it doesn't in ubuntu, as ubuntu has only started shifting to it slowly.
that's pretty cool about the console thing
(i have ubuntu vivid on some systems, the in development ubuntu)
[03:02]
plettI had no idea that command even existed, I'll find out :)
mercutio: Yes, it appears to work. The two slowest things on my system are;
2.252s networking.service
1.094s exim4.service
[03:03]
mercutiocoo.
cool even
yeah i like that
[03:05]
plettBut speeding up boot times has never been that important to me, I hardly ever find myself needing to wait while watching a machine boot [03:06]
mercutioit's good when something takes a really long time but yeah it doesn't usually matter for low times.
i wish servers wouldn't boot through their bios so slow
oh there's a way to show how much is bios and user space etc
oh just remove blame
Startup finished in 2.173s (firmware) + 5.558s (loader) + 1.947s (kernel) + 12.413s (userspace) = 22.092s
Startup finished in 3.435s (firmware) + 5.339s (loader) + 2.986s (kernel) + 11.376s (userspace) = 23.138s
first is hard-disk system, second is ssd system
the hard-disk system is winning hah
[03:07]
plettStartup finished in 1.449s (kernel) + 7.186s (userspace) = 8.635s [03:08]
mercutiomy network starts slow for some reaosn [03:08]
plettDHCP? That's the usual reason [03:09]
mercutioi wonder why it doesn't show your bios.
no dhcp
infiniband + ethernet
it waits for link state.
but it's not slow enough to bug me.
i use static ip's
[03:09]
plettMine is a KVM guest, maybe it needs some hardware counter to measure bios and loader times which mine doesn't have
Or maybe Debian haven't built that yet :)
[03:10]
mercutiooh this is hardware [03:11]
plettI've got a couple of old Asus Eee netbooks, I was going to try Debian Jessie on one of those too [03:12]
mercutioi haven't got any arch linux vm's atm [03:12]
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mike-burnsJessie has systemd now. Just a headsup.
Oh that's how this conversation started.
[04:11]
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up_the_ironsugh, systemd [04:51]
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mike-burnsIt's a good excuse to move more things to BSD.
Though, of course, the Ubuntu base underneath all of us has been solid.
[05:16]
up_the_ironsyeah [05:19]
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m0undshuh, systemd-analyze is handy [08:19]
mike-burnsIt's just going to say the networking script is the slowest, every time. [08:30]
m0undsmine's showing POS networkmanager by 150-200ms [08:34]
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brycecAnybody else seeing some poor ipv6 HE-Level3 connectivity? Was trying to download updates and every mirror my system tried was capping at 400KB/s or so. (and since it tries ipv6 first...)
(I haven't done any sort of thorough investigation yet, just a couple of mtr's.)
[08:58]
........... (idle for 52mn)
Seems like it may just be me. From another location's HE tunnel, same POP, 99% identical route, it's fine. There's one L3 host in the path that differs, but I don't have a 3rd HE tunnel to rule that out.
(If anyone cares, mtr http://sprunge.us/TTPR)
[09:51]
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mercutiobrycec: that's tunnelling?
it's probably just the tunnel
[10:36]
brycecHow so? [10:36]
mercutiolike he.net tunnel? [10:36]
brycecYes [10:36]
mercutiofrom level 3
the tunnel server may be getting abused or something
[10:36]
brycecExcept I have two tunnels on that same POP (tunnel server) [10:37]
mercutiomaybe load balanced [10:37]
brycecThey're not [10:37]
mercutiohmm [10:38]
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that mtr doesn't show loss
but only 10 pings
[10:55]
brycecThat mtr was just a -r (report) [10:55]
mercutio--report-cycles=500 ?
will do 500 pings
[10:56]
brycecDoubtful that it would provide anything useful. The issue is persistent, I should see constant packet loss, no need for a wide window. [10:57]
mercutioeven 0.5% packet loss can show as 400k/sec download speeds. [10:57]
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mercutioappareltny openbsd has some bug with virtio devices in 5.5 and 5.6
mercutio hasn't hit any issues
[12:38]
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brycec(except with spelling ;P) [13:33]
mercutioheh
it's more the typing :)
[13:35]
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[14:11]
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mercutioup_the_irons: at least openbsd 5.6 has wrong timestamps on mirrors.arpnetworks.com
content looks to be the same, it's just confusing.
says 7th of august when it came out 1st november
[15:07]
BryceBotThat's what she said!! [15:08]
mercutiooh wow ftp5 says the same thing
maybe it's openbsd's fault :)
other servers seem to update the parent directory time at least.
[15:08]
brycecTwist: ftp5 mirrors from ARP! (j/k) [15:24]
mercutioheh
they really shoudl touch the dates
even if they press cd's from older files
http://www.rhaalovely.net/up2date.html
this is kind of cool
[15:25]
BryceBotThat's what she said!! [15:26]
bryceclol @ the timezones [15:26]
mercutiothe timezone thing is annoying [15:26]
brycecbrycec blames the Dutch [15:26]
mercutioi've hit really really outdated mirrors before [15:26]
brycec@openbsd amd64 [15:26]
BryceBotamd64 -> snapshots: Wed Dec 10 2014 11:59:55 GMT-0800 (PST), packages: Sat Dec 06 2014 04:43:44 GMT-0800 (PST) [15:26]
brycec^ Pulls from ftp.openbsd.org [15:26]
mercutiolike a year plus :) [15:26]
brycec(well, periodically polls. The pull is not "live") [15:27]
mercutioi'm using snapshot on arp
i just updated it
[15:27]
brycecBryceBot announces new OpenBSD snapshots for another IRC channel. [15:27]
mercutiobut i was also updating another box to 5.6
it seems faster
i think ssh or tcp or something must have changed
cos it's like a slow old server, adn it seems faster than faster servers
[15:27]
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i think it's openssh [15:49]
brycecPerhaps it's defaulting to faster ciphers [15:50]
mkbmercutio, I've had my networking fail and say buffer full or something like that whenever I try to write out on a socket
I guess that's not a hang like the errata says though
[15:51]
mercutiobrycec: yeh i think so, it's faster with ssh than dropbear to connect now
mkb: sounds nasty.
[15:52]
BryceBotThat's what she said!! [15:52]
mercutioat least they informed about it
openbsd really needs binary updates.
err would be good with
they're classing themselves as a research OS now
[15:52]
brycecmtier.org for binary updates
Specifically http://www.mtier.org/solutions/apps/openup/
[15:57]
mercutioi did not know about that [16:03]
brycecAnd now you do, hooray! [16:04]
mercutiothanks brycec [16:04]
brycecnp [16:04]
mercutiowas it on undeadly? [16:04]
brycecI have no idea [16:04]
mercutioi read undeadly a bit and occassionally check out the mailing list.
mailing list has so much volume though
[16:04]
mkbmtier the company has definitely been featured [16:04]
brycecI know about it from fellow OpenBSD sysadmins and developers [16:04]
mercutioahh
it doesn't like me having http_proxy set
https_proxy isn't set
[16:05]
mkbhttp://www.undeadly.org/cgi?action=article&sid=20110420080633 [16:05]
mercutiooh that was ages ago hah
undeadly's search is broken it seems
you used google?
[16:05]
mkbyes [16:06]
mercutiohttp://undeadly.org/cgi?action=article&sid=20130509120042
it was mentioned more recently
[16:06]
mkbthat's them using it as a desktop (complete with screenshots) [16:06]
mercutioi used openbsd on desktop for a while
it worked pertty well
it was a while ago when video drivers were more open source friendly
[16:08]
mkbI still do
we have KMS now, at least if it's not nvidia
[16:08]
mercutioi haven't tried openbsd on desktop in a while
maybe i should
linux's open source radeon support is really bugging me.
i can't expect openbsd to be any better, but intel onboard was much better :)
[16:09]
mkbfirefox is slow
I don't know if that's OpenBSD, my computer, or Firefox...
[16:10]
mercutioi've never seen firefox be particularly fast.
i've seen it scrolling at various speeds, but seems to have random pauses
i was using opera on openbsd
the freebsd version
i don't think that even exists anymore
[16:10]
mkbIwant Firefox because I'm able to give it all the right settings w.r.t. cookies and such. [16:11]
mercutioahh i've never worried about that [16:12]
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[16:15]
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m0undsmercutio: new opera is just chromium + opera features now [18:06]
mercutioi think they dropped freebsd though? [18:07]
m0undsprobably [18:07]
mercutioand it's still closed source isn't it? [18:07]
m0undsyep, that doesn't bother me in the slightest
i liked it years ago when they were the first to do a lot of stuff, ahead of other browsers
lots of cool functionality
[18:07]
mercutioyeah
i liked it except it kept crashing a lot
but it would show the pages before the crash when you resarted it
so i kind of just put up with it :)
[18:10]
BryceBotThat's what she said!! [18:11]
DaCamkb, m0unds: have you tried xombrero? [18:12]
mkbI have
what I like is Firefox's profiles
I have one that I normally use that has cookies, javascript, etc. off
and another that I use if I need to that has it all on, but has remove on close set to true
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mnathaniwhere does one generally store ISO images for use with xen VMs?
I think I found: /var/lib/libvirt/images
[19:50]
mercutioi would use /iso
or /xeniso
to my mind it's easier just having top level paths
[19:53]
mnathaniI get the following error: https://gist.github.com/anonymous/a0f1e4e78dab4ac64d65 [19:57]
BryceBotGist: "https://gist.github.com/a0f1e4e78dab4ac64d65" [19:57]
mnathanimy first time creating a Xen VM [19:57]
mercutioeww libvirt [19:57]
mnathaniusing virt-manager remotely from a CentOs 7 VM
host is Ubuntu
[19:58]
mercutioyeah i just xl
it sounds like a key issue
try sshing in with the key and adding it to the file first?
maybe it's prompting or osmething
[19:58]
mnathaniwould it make sense to install a gui on the host and create the VM locally? [20:00]
mercutioxl isn't that hard
and doesn't require gui
[20:03]
mnathanilooking into that now [20:05]
mercutiolibvirt i find harder to read [20:05]
BryceBotThat's what she said!! [20:05]
mnathaniBryceBot: no [20:05]
BryceBotOh, okay... I'm sorry. 'libvirt i find harder to read' [20:05]
mercutiobut can work with kvm and xen
http://xen.1045712.n5.nabble.com/xen-unstable-xl-add-some-example-configuration-files-td4956691.html
[20:05]
mnathanihow do you view the actualdisplay? [20:06]
mercutioi was finding it hard to find examples
i just use normal console
you can type xl console and it does a serial type console
like xl console virtualmachinename
[20:06]
mnathaniwhat if the guest has a gui? [20:06]
mercutioyou can esacpe it with ctrl-]
oh gui?
i only do unix :)
on virtual machines.
[20:06]
mnathanilike a windows VM for example [20:06]
mercutioyou can set it up with vnc
you do vnc=1
and you can tell it a port number
you can also do sdl=1 for local stuff
there'll be something for that new fancy one too, but generally speaking i've just used vnc then used remote desktop once it's there
you can then either run vncviewer with remote X forwarding, or tunnel a port via ssh
or listen on a private network
[20:07]
mnathanithis seems a bit complex for me [20:20]
mercutiowhat part? [20:21]
mnathaniI like click - click gui configs [20:21]
mercutiowindows? :) [20:21]
mnathanilike virt-manager
and vmware esxi
[20:21]
mercutiovirtualbox is good for desktop usage like that
ok well your virt-manager thing is probably about the ssh key thing
you can probably ssh forward X virt-manager from a remote server and run it locally
or you can figure out why ssh is showing that stuff and fix it
so ssh'ing in manually should let you do the accept on the key
[20:21]
mnathanidoes virt-manager have to be installed on the host even though I am using it remotely over ssh
I am actually running virt-manager on has it installed and is connecting to the host via ssh
[20:24]
mercutioyeah i know
that's why i said you have to ssh in manually
it's showing a ssh generic thing
which suggests you haven't accepted the remote key
as the user virt-manager ssh's in as
so it's added to host keys or whatever
[20:26]
mnathanissh did not prompt to accept a key
not sure what user the virt-manager is using the ssh
should just be root
[20:38]
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mercutiojust see what ps says? [21:12]
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