#arpnetworks 2014-11-13,Thu

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WhoWhatWhen
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jpalmermercutio: for laggy ssh connections, I really like mosh.
mercutio: I know I'm crazy late to that conversation, but I like it enough that I felt like it was still worth mentioning.
mercutio: I have a datacenter in a city north of the arctic circle. It's only connectivity is via satellite, and it's down more than it's up. 1200-2000ms round trip ping times are common. mosh still makes that link useful.
[10:37]
mhoranI wish mosh supported IPv6. [10:41]
jpalmermhoran: same
mhoran: but also, most sites that are modern enough to have ipv6, probably have decent connectivity too.
(with obvious exceptions, like the datacenter I was just talking about)
[10:42]
mhoranT-mobile is native IPv6 on Android 4.4+, and the IPv4 connectivity is actually NAT back to the base station. So that's kinda lame, for a mobile SSH client, connecting over IPv6 to an IPv6 server via IPv4. [10:44]
brycecipv6 you say? I might consider switching... (I was already considering switching anyways)
If only they had better coverage in my area.
[10:45]
mhoranYeah. It's great in the city but drops whenever I'm outof town. Oh well. [10:46]
brycecI'm pretty close to rural areas, so I'd frequently be in and out
But the pricing is appealing, as is native ipv6
[10:47]
mhoranYeah, the price is great.
Also, their international roaming deal is awesome.
Free data and SMS.
And calls are pretty cheap.
[10:57]
RandalSchwartzyeah - it's my primary plan now [11:05]
brycecTmo is who I use the odd time I need a temporary cell plan. It's wonderful that (unlike most US carriers) they're happy to sell a SIM [11:06]
RandalSchwartzincredible for world-travellers like me
especially since I spend one weekend a month in tijuana :)
... http://www.t-mobile.com/cell-phone-plans/simple-choice-international-plan-countries.html
[11:06]
m0unds1tmo uses 464XLAT for v6
if anyone was interested in checking that out
[11:22]
brycechttps://sites.google.com/site/tmoipv6/464xlat [11:23]
m0unds1there was a talk about it at nanog earlier this year [11:23]
brycecI love how open they are [11:24]
mhoranWell, they use 464XLAT for v4. :)
It's native v6.
[11:24]
BryceBotThat's what she said!! [11:24]
brycecBryceBot: no [11:24]
BryceBotOh, okay... I'm sorry. 'It's native v6.' [11:24]
bryceclol mhoran [11:24]
mhoranBut it's pretty cool.
I'm happy that mobile is pushing v6 deployment.
[11:24]
brycec(I also love just "fuck you bigger guys" Tmo's CEO is) [11:25]
mhoranYeah. [11:25]
m0unds1yea, his strategy forced other carriers to reduce my monthly cost, haha
tmo's covg where i live is horrible, so they're not an option for me
i tried them out and couldn't use my phone in my house or where i worked, haha
https://www.youtube.com/watch?v=Xl-hIyZSAmA
[11:25]
BryceBotYouTube Tech: "464XLAT: Breaking Free of IPv4" by TeamNANOG (39m 47s), 841 views, 14 likes and 0 dislikes. Uploaded 2014-06-06T00:50:51.000Z. [11:27]
mhoranT-mo branded phones have some sort of UMA or whatever the most recent is these days, which lets you make calls on your WiFi with voice minutes. [11:28]
m0unds1yeah, but my phone doesn't support it because it's an unlocked device [11:28]
mhoranYeah, same. [11:29]
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[11:34]
m0unds1meh. guess i should go run errands. [11:42]
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mercutiojpalmer: for normal path based loss bouncing via another host often works easier
if you have a 1000 msec or something link that you can't do anything about mosh may work better.
[12:31]
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is anyone here running smokeping with fastcgi/nginx?
i've been using lighttpd for ages, and i thought i'd try nginx more properly, and i'm struggling to make smokeping work
[12:49]
brycecbrycec is [12:52]
mercutioi'm stuck at that atm smokeping_cgi: require Smokeping::probes::FPing failed: Can't locate IPC/Open3.pm
<pre>require Smokeping::probes::FPing failed: Can't locate IPC/Open3.pm: Permission denied at /usr/bin/../lib/Smokeping/probes/FPing.pm line 19, &lt;File&gt; line 3.
i'm sure it used to work
[12:52]
bryceclol [12:53]
mercutio[http@emerald ~]$ locate IPC/Open3.pm
/usr/share/perl5/core_perl/IPC/Open3.pm
[http@emerald ~]$ wc -l /usr/share/perl5/core_perl/IPC/Open3.pm
425 /usr/share/perl5/core_perl/IPC/Open3.pm
i was doing: smokeping_cgi /etc/smokeping/config
to make sure that part works
[12:53]
brycecYou mean "/usr/bin/perl /usr/lib/cgi-bin/smokeping.cgi" ? [12:55]
mercutionah it's called smokeping_cgi [12:56]
brycec(At least, that's what I'm running) [12:56]
mercutiowhich seems to be in perl [12:56]
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mercutiohmm it loads as root
but not as http/smokeping
are you using fcgiwrap?
[12:56]
brycecno [12:57]
mercutiohow are you doing it?
OHHH
[12:58]
mkbmercutio, were you the one I was talking about 5.6 on arp with? [12:58]
mercutioi think i found the issue
mkb: yeah probably
[12:58]
brycecbrycec is tied up, sorry I can't hep more [12:59]
mercutiowhen i su'ed i was still in /root/
so that bit is working
[12:59]
mkbhave you been migrated yet and have you been able to boot since then? [12:59]
mercutioi never hit the issue myself [12:59]
BryceBotThat's what she said!! [12:59]
mercutiomy host is on newer kvm
were you migrated?
[12:59]
mkboh nice; yeah to kvr04 [13:01]
mercutioand is it working? [13:01]
mkbhaven't updated yet [13:01]
mercutioahh ok [13:01]
mkbwhen it didn't work I reinstalled 5.5 [13:01]
mercutioi updated to 5.6 snapshots early ish
from 5.4
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up_the_ironsI migrated another customer that ran OpenBSD 5.6 and he reports it works great now on newer KVM/QEMU [14:54]
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mercutioup_the_irons: how are the upgrades going?
i suppose having so many hosts makes it harder :)
[15:04]
brycecs/how.*/are we there yet? [15:04]
BryceBot<mercutio> up_the_irons: are we there yet? [15:04]
brycec:P [15:04]
mercutiowhat?
bryce are you free now? :)
[15:04]
brycecMore free
Composing a long email, then I'm free
[15:05]
mercutioi got distracted heh. so i'm getting 403 forbidden error with nginx smokeping still.
oh ok :)
[15:05]
brycec(unless something else comes up) [15:05]
mercutioi'll let you compose! [15:05]
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up_the_ironslol [15:22]
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mercutiodamnit i had an idea that it might be socket permissions, but nooo [16:01]
brycecWhat does error_log say? [16:03]
mercutionothing
that's the problem
[16:04]
brycecFor a 403 response, there's gotta be something [16:04]
mercutioit says something if you miss the i off the end
% ./microcurl/microcurl -v http://202.49.71.24:24/smokeping/smokeping.fcgi
http protocol.
f
403 Forbidden
0
*402 open() "/srv/http/smokeping/smokeping.fcg" failed (2: No such file or directory)
so the error log works normally
and su to http user and running the cgi works
but you have to get out of the /root/ directory
or it says permission denied
on something random to confuse you :)
[16:04]
brycecHere's my nginx config http://sprunge.us/DiPX [16:07]
mercutiohow are you running smokeping with with that fastcgi.sock [16:07]
brycecAnd I spawn smokeping with: exec /usr/bin/spawn-fcgi -n -s /var/run/smokeping/fastcgi.sock -u smokeping -g smokeping -U www-data -G www-data -- /usr/lib/cgi-bin/smokeping.cgi [16:07]
mercutiook maybe i shoudl try that
i'm trying to use fcgiwrap
[16:08]
brycec(And I'm using runit to supervise that) [16:09]
mercutioit says to use multiwatch
this was so easy on lightty :)
[16:09]
brycecMeh I prefer runit [16:10]
mercutiohmm
i used to use daemontools
[16:10]
brycecEither way, command/syntax for spawn-fcgi is the same [16:10]
mercutioi use it some other places [16:10]
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brycecbrycec has no idea why he preferred runit, but there were reasons at the time)
It's the only service I use runit for as well
Anyhow, hope that helps. It really Just Works(tm) for me, a matter of pointing nginx at the fastcgi socket, and spawning the fastcgi listener
brycec runs into the night
[16:10]
mercutioyeah uhh
hopefulyl i can figure it out
i'm not used to this whole systemd thing
[16:12]
brycecheh [16:13]
mercutioi'm going to try inside tmux first i think [16:13]
brycec(This is a Debian Wheezy system, no systemd involved in my setup) [16:14]
mercutioyeah
now i get that IPC/Open3.pm error
I am going up in the world! :)
woot got it
i have to do that exec in /tmp
rather than somwhere it cna't read
and i have a script that calls itself and runs that spawn-fcgi
[16:15]
thanks bryce [16:28]
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bryceccongrats, mercutio [17:07]
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mkbup_the_irons, openbsd 5.6 works great; thanks! [18:36]
up_the_ironsmkb: :) [18:40]
mkbonly difficulty was that vio0 turned into em0 and I was without networking until I fixed that [18:42]
up_the_ironsoh did you have virtio before? I can enable that again if you like.
cuz with em0 you're just on intel e1000
[18:48]
mercutiowas that an inbetwen version?
i thought virtio didn't work on older kvm
[18:48]
mkbI did; I didn't know if it was supported on the new kvm
I guess it wouldn't have gone away
up_the_irons, send a ticket or can you just do it?
[18:49]
up_the_ironsmkb: pm me your vps uuid [18:51]
mercutiowhile you're shifting his to virtio could you shift mine to virtio too please? [18:52]
mkbdone [18:53]
up_the_ironsmercutio: the nic? [18:54]
mercutionic and storage [18:55]
mkbdmesg said my storage was already vio [18:55]
mercutiooh
right you are
my storage is virtual
it wasn't last i looked :)
it's hostname.vic0?
[18:55]
up_the_ironsvio0 i believe [18:56]
mercutiook [18:56]
mkbapparently viornd(4) exists. didn't know that [18:57]
mercutioin new kvm yeh
hard to get entropy in a virtual machine
[18:57]
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[18:59]
mkband there's vio [19:01]
mercutiomine isn't up again yet hmm
oh it can't find /dev/rwd1a
up?
there was an extra drive attached to it
[19:05]
mkbwd? mine are sd [19:07]
mercutiomine are wd
it booted in read only mode when i typed exit
after shell
i hoped it would just continue without the drive
[19:08]
BryceBotThat's what she said!! [19:08]
mkbwhen it was mounting everything? [19:08]
mercutiovinagre breaks under synergy
shift doesn't work
now i can't exit vi
bah it's mounted read only anyway
yeah i had rwd0 and rwd1
[19:08]
mkbyou should have your console be the serial console [19:10]
mercutioyeah that'd be sensible
the option wasn't there when i first set it up iirc
[19:10]
mkbbsd.rd asks when you install [19:10]
mercutionah on arp [19:10]
mkboh you used the default setup [19:11]
mercutionah ssh console server wasn't there i mean i think [19:11]
mkboh that must have been a long time ago [19:11]
mercutiomaybe it was
i've had a vm since jan 2011 it sems
[19:11]
mkbthat's longer than me at least [19:13]
mercutioit doesnt' seem like very long to me
i had a dedicated server 10 years ago or something
in a different location
and it ran openbsd too :)
but pentium pro 200
[19:14]
mkbheh
I used to have a machine at home, but it just got to be such a hassle to maintain behind dynamic IP
[19:17]
mercutioheh
dynamic ip sucks yeh
i ran a mail server on dynamic ip in like 98
but the whole idea of personal servers and vps's isn't new to me relaly
but now days there's no real reason for low end servers vs vsp
vps
[19:19]
hmm up_the_irons didnt' seem to get back [19:31]
argh shit why did i use vi again
so i've lot wd1 and wd0 has turend to sd0
but it seems to work at least
[19:36]
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mkbthe bios always shows 3 disks for me; maybe that explains wd0 wd1 [20:10]
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mercutiocool, working now up_the_irons. thanks. [20:29]
up_the_ironsmercutio: np [20:37]
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