#arpnetworks 2017-12-22,Fri

BryceBot

YouTube video: "RubyConf 2017: Saving Ruby from the Apocalypse by Jason Charnes" by Confreaks

https://www.youtube.com/watch?v=qH_y45he4-o&index=33&list=PLE7tQUdRKcyayGHjjxZOmVEGsxX-rczZt

mike-burns

BryceBot

YouTube video: "RubyConf 2017: Keynote: Growing Old by Chad Fowler" by Confreaks

mike-burns

Those are the culture-based ones. There were also quite a few technical talks about the actual technical future of Ruby. It's going to be fast!

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brycec

Those look/sound like worthwhile watches, thanks. And good point on the transition from "buzz" to stable/reliable/core infrastructure. (Not that these are mutually exclusive, plenty of companies are building themselves on top of tech that is still in the buzzword bingo card.) Just like COBOL and C aren't on the bingo card anymore...

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[14:16]

brycec

Okay, troubleshooting time! I'm trying to reach a VPS of qbit's at 174.136.100.91. From the outside world, no problem - ping, connect, etc. From ARP subnets (1 Thunder, 1 VPS, 1 Metal, across 2 accounts/VLANs), no response. I'm pretty sure ARP doesn't block traffic between its VLAns (because I can connect across my accounts). qbit claims "i ain't got no blockins

[14:20]

qbit

[14:20]

brycec

" and I've confirmed his netmask is set right. Anyone got thoughts? Can anyone else ping that IP from ARP?

[14:20]

qbit

i ain't!

[14:21]

brycec

(Stupid embedded enter)
(I don't believe you!)
(:P)

[14:21]

qbit

( http://ix.io/DiP )
mah pf.conf

[14:22]

brycec

(heh I see you've given up on your matrix_whitelist thing)

[14:24]

qbit

yeah, no needed since they fixed the dumb "rejoin rooms" thing

[14:24]

brycec

pfctl -t abusive_ssh -T test 174.136.103.130 ; pfctl -t abusive_www -T test 174.136.103.130 ; pfctl -t fail2ban -T test 174.136.103.130
pretty please, qbit?

[14:25]

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qbit

0/1 addresses match.

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qbit

0/1 addresses match.
0/1 addresses match.

brycec

Then I'm at a loss :(
qbit: Do you at least see (tcpdump) my pings?
tcpdump -i vio0 -c 10 icmp

qbit

what is the tcpdump command?
<3
yes
15:27:16.105402 vps3.cobryce.com > spark.akb.io: icmp: echo request (DF)

brycec

Are you able to ping back?

[14:27]

qbit

no, shows host is down

[14:27]

brycec

route -n get 174.136.103.130
(That's OpenSBD syntax, obvs)
It *should* say gateway: <your gateway>

[14:27]

qbit

huh
spark# rout
route to
destination
mask
interface
if address
priority
flags
use
1824
ohgod

BryceBot

That's what she said!!

qbit

i have no idea how i did a horizontal select
that's neat

brycec

and completely useless :P

qbit

http://ix.io/DiS
so it's trying to go out my alias?

[14:30]

brycec

It's trying to go direct
without routing

[14:30]

qbit

gimme yo ip!

IM_AWESOME

IM_AWESOME sent a long message: IM_AWESOME_2017-12-22_22:31:12.txt <https://vps3.cobryce.com/_matrix/media/v1/download/cobryce.com/XcJzeygMbfHedeMUQuJjYMCs>

brycec

^ That's what it's supposed to look like

qbit

:O
inet 174.136.100.82 netmask 0xffff0000 broadcast 174.136.255.255
dat netmask

brycec

whoa dude
no wonder
http://man.openbsd.org/hostname.if

qbit

how do i tell :D

brycec

qbit it guessed at the netmask since you didn't give it one

qbit

try now

brycec

It should be "alias 174.136.100.82 255.255.255.255"
ping still not wresponding

qbit

i have that - but with the proper subnet
oh, literally 255.255.255.255?

brycec

Aliases usually are given a /32
(notice the examples ;))

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[14:34]

brycec

qbit: you're gonna want to `ifconfig vio0 -alias 174.136.100.82 ; ifconfig vio0 alias 174.136.100.82 255.255.255.255`
That'll delete and readd the alias manually.
Or just delete then netstart
(But netstart on its own won't delete the previous alias, you def need to do that manually)

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[14:44]

qbit

woo
brycec: work now? :D

[14:47]

brycec

qbit: Negative, no ping responses, no TCP connect

[14:47]

qbit

inet 174.136.100.82 netmask 0xffff0000 broadcast 174.136.255.255
ehhem

[14:47]

brycec

bro did you even udpate your hostname.vio0?
*update

qbit

yes

brycec

Well not very well :P

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qbit

http://ix.io/DiX