#arpnetworks 2015-08-17,Mon

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WhoWhatWhen
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grodymercutio, im guessing - but it's curious the varying pattern pinging first IP (gateway) and not when crossing out of the network
never used to pay this much attention to network stats mind, munin always did what i needed - just curious seeing subtleness and trying to figure it out
my best guess is in the local pings, during those times load incraases on the virtual host which effects it's ability to process and reply (albeit only a mere couple ms) but doesn't effect what passes via it, since it only has to forward
affects* 		[04:20]
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qbito/
hihi 		[07:33]
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mercutiooh fun, now there's a bittorrent ddos attack apparently [15:32]
mnathani_mercutio: link? [15:40]
mercutiohttp://arstechnica.com/security/2015/08/how-bittorrent-could-let-lone-ddos-attackers-bring-down-big-sites/ [15:42]
BryceBotArs Technica: "How BitTorrent could let lone DDoS attackers bring down big sites" [15:42]
mercutioyeah mainstream news :) [15:45]
m0undsheh, doesn't BT unintentionally ddos peoples shitty home routers anyway?
not the reflective type of thing, just by nature of the fact that it takes tons of connections for it to work
haha 		[15:49]
mercutiohaha
from packet loss/congestion? 		[15:51]
m0undsfrom thousands of inbound connections
can kill old stuff pretty handily 		[15:52]
mercutiothat hasn't been an issue for modems newer than like 5 years
err less than 5 years old 		[15:52]
m0undsnot for modems maybe [15:52]
mercutioit used to be a problem when modems hardly had any ram
now they seem to have way more than they need 		[15:53]
m0undsi know several people who insist on keeping 10 year old ancient linksys devices
and will die under load of BT traffic 		[15:53]
mercutioyeah that could be an issue [15:53]
m0undsthat's more what i was talking about [15:53]
mercutiothey don't usually die
just stop accepting new connections 		[15:53]
m0undsjust congest til they stop responding [15:53]
mercutiomy vdsl modem has 128mb of ram
i haven't seen congesting really
i've seen web interfaces that stop working under tight ram
and you can't use the web ui any more but it passes traffic fine
(even without bittorrent)
also i managed to screw up a modem with web browsing once.
err.. benchmarking web page loading 		[15:53]
m0undsthat's awful [15:54]
mercutioi used to benchmark like 20 pages
or something
but yeah it was kind of annoying when i fuond some connections would stop working if you benchmarked them
that's not even like 10,000 requests at once or anything
it's sequential load 1 page at a time in chrome
so if you clicked around a lot you could emulate such behaviour
but yeah this bittorrent thing could be bad if utp really is vulnerable to reflection attacks 		[15:54]
m0undscan't wait [15:59]
mercutioit may mean people start rate limiting uttp
utp
utp is pretty easy to spot 		[16:01]
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apparently there's a new android 6 out
seems most things still aren't updated to 5 		[16:56]
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m0undsit's just in preview, iirc
i don't really know why they're calling it 6, since it doesn't really add much to 5.x except granular permissions
ah, sdk was released and the final preview build of it
i already had the preview sdk on my laptop to test some stuff 		[17:26]
mercutioahh ok, frist i'd herad of it
thought it seemed a bit quick 		[17:30]
m0undsthey were referring to it as "M" before, fwiw
most thought it was going to be a point release like kitkat or jellybean on ICS 		[17:31]
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mercutioi wonder if anything uses sctp, there's been a few issues in linux with it over time [18:16]
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it seems to me things like sctp shouldn't be enabled by default [19:00]
m0undshaven't thought about stcp in a long time [19:12]
mercutioapparently it's broken on some routers too
i mean lots of home routers / nat situations
yeah there's just a new kernel crash bug in linux or something
http://www.ebay.com/itm/Refurbished-Nokia-3310-UNLOCKED-Phone-with-Battery-Charger-warranty-3210-/131507529099?hash=item1e9e75a58b
[19:12]
m0undsah
sweet deal
dual band, oh boy
i bet that won't work anywhere in the us anymore
unless there's some random pocket of tdma somewhere 		[19:18]
mercutiooh?
it's not tdma i think
i think it's gsm 		[19:18]
m0undsoh, gsm [19:19]
mercutio900/180
1800
we use 850 and 900 here 		[19:19]
m0undshm, dunno who owns those bands here
we use lots here 		[19:19]
mercutio1800 is normally an in-fill frequency [19:19]
m0undsat&t uses 850/1900, tmo uses 1700/1900, vzw uses 800 [19:19]
mercutioi think you use like 700ish as well [19:19]
m0undsnot counting lte
yes
for lte
and it's divvied up into chunks for that too 		[19:19]
mercutiot-mobile probably uses low frequenc ytoo
i use 900 normally 		[19:20]
m0undsthey use it for lte
they don't have any other national licenses
except pcs
and 1700 		[19:20]
mercutiooh wow [19:20]
m0undsaws [19:20]
mercutioit relaly looks like you don't use 900 mhz [19:20]
m0undsyeah, tmo sucks the dog in lots of places
horrible outside metro areas, i think in part because pcs propagation sucks
needs cell density to work well 		[19:20]
mercutioi assumed they'd have a low frequency too
4g/te isn't usually used for voice calls 		[19:21]
m0undsblock a 700MHz for LTE
that's it
https://en.wikipedia.org/wiki/T-Mobile_US#Radio_frequency_spectrum_chart 		[19:21]
BryceBotT-Mobile US :: T-Mobile US, Inc. is a wireless network operator in the United States and the German telecommunications company Deutsche Telekom (DT) is a majority shareholder. Its headquarters are located in Bellevue, Washington. T-Mobile US provides wireless voice, messaging, and data services in the United States, Puerto Rico and the U.S. Virgin Islands under the T-Mobile, MetroPCS and GoSmart Mobile brands. The company operates the... [19:22]
mercutioreally LTE is "the future" [19:22]
m0undseven their acquisition of metropcs didn't really do anything but give them 1900mhz licenses in markets where they ran out of room
yep 		[19:22]
mercutioand voice should go on it too
but these things move slowly 		[19:22]
m0undsit will, it does here to a limited extent [19:23]
mercutioand using high frequencies in less metro areas sucks [19:23]
m0undsyeah, that's why tmo is kind of bad in lots of rural areas, lots of road in between cities/towns in the US
they only cover like 1/8th of my state natively
well, last i checked anyway
they rely on at&t a lot for partner covg 		[19:23]
mercutiooh 900 mhz is used for personal radio stuff in the US? [19:24]
m0undsyeah, lots of stuff in that neighborhood [19:24]
mercutiosimilar to 2.4 ghz [19:24]
m0undssome bands in 800mhz range were used for public safety radios, which is part of why sprint had to decommission iden
iden was neat for the time, i liked my nextel phones 		[19:24]
mercutiomy battery life has been shit since android 5 [19:25]
m0undshttps://en.wikipedia.org/wiki/Nextel_Communications [19:25]
BryceBotNextel Communications :: Nextel Communications, Inc. was a wireless service operator that merged with and continues to exist as a wholly owned subsidiary of Sprint Corporation. Nextel mobile communications in countries like Argentina, Brazil, and Mexico, are part of NII Holdings, a stand-alone, publicly traded company that is not owned by Sprint Corporation. Nextel Communications traces its roots to the 1987 foundation of FleetCall by Morgan... [19:25]
m0undsyea, most people seemed to notice a 20-30% battery life decrease w/5.x [19:25]
mercutioithought it was meant to improve it [19:25]
m0undsyea, there was a lot of buzz about it but in true google fashion it didn't really deliver on that promise
project volta etc 		[19:26]
mercutiooverall i'm not really impressed for phones
the only real useful feature i've found is that now flashlight is in my pull down screen 		[19:27]
m0undsi like being able to pull down just notifications without quick toggles, then pull down again for quick toggles
or pull down on the right side of my screen and go straight to quick toggles 		[19:28]
mercutiooh yip
all minor stuff 		[19:28]
m0undsyeah, quality of life [19:28]
BryceBotThat's what she said!! [19:28]
m0undsexcept battery
BryceBot: no 		[19:28]
BryceBotOh, okay... I'm sorry. 'yeah, quality of life' [19:28]
mercutiothe battery thing is big [19:28]
m0undsi like the design better, it looks nicer [19:28]
mercutiowith a black screen? [19:29]
m0undsi mean ux design is nicer [19:29]
mercutioi know :)
doesn't really help if the phone is flat though
the notifications are nicer 		[19:29]
m0undsstuff moves faster i think, seems like framerate is steadier
see a lot less hitching although it's nowhere near as smooth as ios or windows mobile/phone 		[19:30]
mercutioi don't notice a diff
it still takes a while to boot too 		[19:30]
m0undsyea, my lumia boots probably twice as fast and its soc is from 2012
and it's also on win10, which boots slower than wp8
hahaha
(debug/log all the things) 		[19:31]
mercutiolooks to be about 50 seconds boot time
although it's a bit smoother when logging in straight after booting than i seem to recall 		[19:32]
m0undsyea, part of that might be because of precompiled stuff vs jit on older android
since apps compile at install vs at runtime 		[19:44]
mercutioahh yeh [19:54]
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