#arpnetworks 2015-06-03,Wed

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WhoWhatWhen
mercutiowoot, new zsh version
it supports vi like cut/paste
well v selecting etc.
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mike-burnsExcellent. [00:46]
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grodynow i remember why i like a litle harmless HAM
its when i dont get an email for a day i wonder... whats brooken
only to see most of the mail hitting the server is plain SPAM
and the occasional relay drone and popper
[07:58]
BryceBotThat's what she said!! [07:59]
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mnathani_what is the go to wifi utility folks use on arch linux laptops? [13:58]
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brycecI was using wicd but recently switched to using NetworkManager
wicd was frequently having issues with DHCP (it would spawn dhclient, the wifi conn would be lost, it would reconnect and spawn a new dhclient, etc. All sorts of headaches)
Plus NM is no longer a horrible shitshow :) And supports things like setting certain wifi networks to then open a VPN connection automatically
(eg if I'm connecting to Starbucks' WiFi, automatically start the VPN to my home before the connection is made fully "up")
[14:28]
staticsafethats handy [14:32]
brycecI've always *hated* that brief overlap between some strange wifi and my reasonably secure VPN when whatever apps I have open still (syncthing, chrome, etc) are potentially exposed and may even open connections outside the VPN without my realizing it. [14:36]
staticsafebrycec: especially useful on actively hostile networks (countries that do censorship and what not) [14:39]
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mercutiobrycec: yeh it's disconcerting.
wifi is really the only reason network managers are necessary for most people
[14:58]
brycecVery true. VPNs too, but I guess that's a smaller subset of "most" people than I think it is [15:00]
mercutioand i find i can't see a proxy server on linux per wifi connection the way i can on android :/
depends if it's vpn for internet or vpn for network
[15:00]
brycecs/see/set/ [15:02]
BryceBot<mercutio> and i find i can't set a proxy server on linux per wifi connection the way i can on android :/ [15:02]
brycecI assume [15:02]
mercutiohaha
yes you are right
i can't see properly :/
[15:02]
brycecAnd that's because Linux/* has no central network management :p
heh
OSX, Android, Windows all have a system-wide setting that most browsers can honour. On Linux though, it's barely there...
heck, Java will actually use Firefox as its network/proxy config source
[15:02]
mercutioyeah at least it's no big deal
it's so hard to guage thiings like how much more efficient explicit proxy over transparent proxy is
because it's things like dns you skip out on
and it's worse if you are at a distant shitty wifi link
which is when you care more
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grodybrycec, out of the box NM.. it has become quite good lately [15:32]
brycecIt's highly decent :) [15:32]
grodybut on my boxes @home and laptops that are housebound all use rc scripts to bring up wpa_supplicant etc. so it's online becuase X loads
s/because/before/
[15:32]
BryceBot<mercutio> before it's things like dns you skip out on [15:32]
grodyhah [15:33]
brycecheh, yeah for sure. It's only my laptop(s) that I take places that have NM. No reason to go overboard. [15:33]
grodyi do have an older linux with wicd.. but thats because i cant really upgrade it and NM on that is shot to sh1t
oh i see.. i spelt beuase wrong
and again
im going to bed
[15:33]
BryceBotThat's what she said!! [15:34]
mercutio;)
it seems chromium finally fixed high dpi support.
it seems to work "normally" now.
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he.net are weirdly cheap for colocation
i dunno how they can be so cheap, 42u cabinet with 15 amps power and 100 megabit bandwidth for $300/month
[15:58]
brycechot damn [15:59]
mercutio15 amps of power at 110v would be like 1650watts. [15:59]
brycecI mean, 100mbps is a bit stingy for 42U... but it depends what you're doing. [15:59]
mercutioyeah well 15 amps power for 42u isn't much either.
you kind of want twice that with redundancy
and gigabit and cross connect to someone other than he.net
and it's in fremont.
which is alwayas having issues
[16:00]
brycecI'd expect at least 20A, sure. Still depends what you're doing... [16:01]
mercutioat least i think it's in fremont.
true, but servers normally use at least 1a per 1u?
[16:01]
brycecDepends on the server [16:01]
mercutioyeah it does
i'm just doing a rough ballpark figurue :/
[16:01]
brycecCompany I worked at before sold 1Us with 300-400W PSUs, and typically only drew 200W [16:02]
mercutioit's complicated because load vs idle etc.
200w is 1.5 amp.
[16:02]
brycecOh and we had 1Us with 185W PSUs running Atom stuff [16:02]
mercutioor a bit more
call it 2a.
i3s, i5s etc can easily draw only 50 watts of power
if idle
idle power usage is dramatically raised by chipset etc crap
which is what facebook etc are trying to improve with their own motherboards without ipmi etc.
well without kvm i suppose
linode had a huge outage at fremont recently, and afaik he.net are the only ones at fremont..
[16:02]
brycec120V @ 15A is 1800W to distribute, or 9x 200W servers... [16:04]
mercutioso i searched fremont data center and found this deal thingy.
ahh it's 120v not 110v?
[16:04]
brycecI have no idea [16:04]
mercutioand california is like 20c kwh? [16:05]
brycecbrycec never quite understood the difference between 110 and 120, why some things are labeled or the other... But everything works. [16:05]
mercutionormally for power.. [16:05]
brycec(obviously I know the 10VAC difference, but... why is there a diff, etc) [16:05]
mercutio17.04c res, 13.80c commerical according to this
so it's about $160/month for power if you run it hard.
but yeah you'd have to delay server boots if you did that
so i suppose they wouldn't lose money at least.
they probably just have heaps of space.
that also doesn't include air conditioning cost.
i wonder if arp is using 110v or more.
it seems 208v is getting more common in the US for data centers.
[16:06]
up_the_ironswe use 110 [16:13]
mercutiodo you have the option of using higher?
it seemed to be that things were first moving to hybrid..
i suspect laptops etc don't always work on 208v
i haven't seen servers that aren't auto sensing in ages.
[16:19]
grodystuff here (generally) works anywhere between 110-240v AC [16:21]
mercutioyeah i buy stuff from amazon, and most stuff will just work
it's anything with motors in it that won't work
like a blender isn't likely to work across voltages.
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up_the_ironsmercutio: yes, coresite is very flexible, they'll install damn near anything you want if you pay for it. The next April 1, i'm going to ask them for a tesla coil in order to harness wireless power transmission.
i'll bet $100 the change order will go through before the electricians send it back with a "WTF?!" stamp
[16:56]
brycecThat sounds fantastic. [16:57]
up_the_ironsLOL [16:58]
RandalSchwartz"we need to know how many Tesla" [16:59]
up_the_ironsLOOOOOL [16:59]
mercutiohahaha [17:00]
up_the_ironslots of guys do 208v here, some even DC power [17:00]
brycec"Just enough to wipe out my competitors" [17:00]
up_the_ironsup_the_irons slow claps [17:00]
mercutioyeah dc is more popular amongst routers etc.
oh /colocation on arpnetworks web site mentions dc and 208v power available :)
i didn't check the page.
[17:01]
up_the_ironsyup [17:02]
mercutioeverything is 240v or dc here.
i suspect dc is more efficient, but more pita
[17:03]
brycecYes, DC:DC is much more efficient (and cooler) than AC:DC
Which is a big part of why it exists
[17:05]
up_the_ironsyup [17:06]
brycecWhy have 1000 servers each incurring 50% (random number) loss on AC:DC when you can have 1000 servers incurring 1% loss, and a central AC;DC converter incurring a mere 10% loss. Plus it integrates with batteries easier.
(why ac-dc-ac for battery when you can just ac-dc-dc)
[17:06]
up_the_ironsalso, it's weird, I feel that I can "hear" DC. I used to often frequent the XO carrier suite on 600 W. 7th, and since that's all telco, it was all DC, absolutely everything. Gorgeous fibre all over the room, SONET switches, Juniper, you name it, it was there... and the room totally sounded different. It was like a low hum...
lights on switches also seemed different, like you weren't seeing the 60hz when they were "off"
[17:08]
mercutioyeah apparently it's really backuup power that puushes things to DC more [17:10]
up_the_ironsyeah [17:10]
brycecAnd telco... which is in part pushed by backup power [17:10]
mercutioit's just a lower bill for DC vs AC monthly [17:11]
brycecTelco DCs are commonly DC-only [17:11]
mercutiobut it makes it much simpler having DC for backup power.
i can really notice a difference between 50/60hz for crt's
buut there's been a surprisingly high amount of discussion about monitors and pwm dimming and flicker recently
i think it's pretty well known now that 50/60 etc hz being on/off can do stuff to humans
i can "feel" wireless stuff sometimes it feels like.
like the big heavy wireless stuff
[17:11]
up_the_ironsinteresting [17:21]
mjp_can always get one of these http://content6.flixster.com/site/10/27/01/10270124_ori.jpg [17:24]
brycecBecause you're cold? :p I don't think a solar blanket would be as effective as the show portrayed... [17:27]
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qbitwoooo
<3
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grodygrody ♥ moah
for shits and giggles i thought i'd try running suricate on a small pfSense VPS
it was working brilliant, until i was downloading a few files over FTP.. it ran out of memory
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mercutioi've never understood why triple has one p instead of two [20:17]
mnathani_s/becuase/before [20:19]
RandalSchwartz... http://dictionary.reference.com/browse/triple
latin
triplus
[20:24]
mercutiotrippple.net is available
i wonder if it'd be useful
[20:25]
mnathani_ppp huh [20:25]
RandalSchwartzour guest on floss weekly today had a TLD of .works [20:25]
mnathani_like pppoe [20:25]
mercutioyeh [20:25]
RandalSchwartzand every time I sent email to them, GNUS said "are you sure?" [20:25]
mercutiohaha [20:26]
RandalSchwartz.. http://weave.works
weave orchestrates docker instances
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mnathani_any idea what I need to do to fix a mutt error on centos? gnutls_handshake: A TLS packet with unexpected length was received.
my google foo has failed me
[22:09]
resolved - issue with my muttrc file [22:20]

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