#arpnetworks 2009-09-29,Tue

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WhoWhatWhen
up_the_ironsg'night [00:00]
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up_the_ironsballen: no, it's past your bed time
Qsource: yt? 		[01:05]
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baklavaup_the_irons: new rules in effect... let me know if I'm still dropping your packets [02:59]
up_the_ironsbaklava: will do
baklava: yup, just got the recovery notification, thanks 		[02:59]
baklavacool, no problem [03:08]
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teknicaLhey up_the_irons, it would be nice to see a rdns feature in the panel sometime [08:40]
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up_the_ironsteknicaL: noted
sroute: welcome to #arpnetworks 		[12:38]
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nuke`evening all [13:08]
srouteup_the_irons: howdy - Garry I presume? [13:18]
up_the_ironssroute: yup [13:18]
srouteRaining hard here in Vancouver.
And on that note... back to work for me. 		[13:22]
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mhoranLooks like rain is on its way here.
mhoran doesn't want to do laundry in the rain. :( 		[13:47]
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dbgihi [13:56]
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mike-burnsHello dbgi ! [13:58]
dbgihi mike-burns, hows it going? [14:00]
mike-burnsNo complaints, about to leave the office. [14:00]
dbgithinking about getting a vps from here next week
oh ok cool 		[14:01]
mike-burnsI'm just one of the customers; if you have any hard questions up_the_irons can answer them. [14:01]
dbgiok cool thanks man, ill idle here till hes around, thanks [14:02]
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jeevhas anyone built kvm from git ?
oh well, trying it
;)
up_the_irons, http://git.kernel.org/?p=virt/kvm/kvm.git;a=commit;h=d80e68823cada7b6d850330da1edfdf8bff9e2e6 supposably fixes the timer issue 		[14:54]
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-smp 1
consistent 2 s
$ time sleep 1
2.00 real 0.00 user 0.00 sys
with git kvm/kernel qemu-kvm 		[15:41]
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jeevup_the_irons, bsd vm installs recommend kern.hz=100 in /boot/loader.conf
i built kvm and qemu-kvm from git with the latest update (to fix the timing issue), it gave me a consistent 2s, then i added kern.hz=100 and it's fixed it now, without -no-kvm-irqchip or wathefver 		[16:51]
up_the_ironsjeev: good to know, thanks. I tried kern.hz=100 and it didn't change anything. Of course, I'm not compiling the latest and greatest from git [16:53]
jeevyea
but it's gotten back at me, booting gives me a /dev/console i/o error
still works but, hehe
http://lkml.org/lkml/2009/9/25/106 		[16:53]
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mhoranBah. I hate it when the train pulls away just as you get to the station. :( [17:03]
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jeevi haven't been on a train in forever
where you live 		[17:15]
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mhoranjeev: Boston. [17:52]
jeevahh cool
i've had lunch with david ortiz
not that it matters to anyone
heh 		[17:53]
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mhoranHaha. [18:43]
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ballenanyone around [21:48]
jeevnope [21:48]
ballenk [21:48]
what are some IPv4 networking questions you'd expect in an interview [21:54]
jeevgateway questions [21:55]
ballensuch as? [21:55]
jeevif it's a windows thing, maybe why you can't see other computer on the workgroup or some shit
i forgot, i used to ask really easy questions 		[21:55]
ballenyea def not a windos thing [21:56]
jeevmaybe they ask you subnetting [21:56]
ballenyea thats likely
yea enough
easy*
48 bits in a MAC addr, 32 in a IP address 		[21:56]
jeevi dont even know that or care to [21:57]
ballenwhat the usable number of hosts in a /23
510 		[21:57]
jeevmax usable [21:57]
ballen/22 1022 [21:58]
jeevobviously it varies with smaller subnets [21:58]
ballenyea
I always get asked /23
for whatever reason
TCP 3-way handshake 		[21:58]
jeevi know none of that shit [21:59]
ballenand 4 way tear down
are ya a developer?
or an SA? 		[21:59]
jeevyea man
i can barely take care of my servers
i have a ton of servers and never pay attention to them 		[21:59]
ballenheh [21:59]
jeevi can't focus, can't code
i figured out the timing solution though
apic->lapic_timer.period = (u64)apic_get_reg(apic, APIC_TMICT) *
latest code 		[21:59]
ballentypical developer :-p [22:00]
jeevit was patched, i mean i didn't figure it out
soemone else did
;) 		[22:00]
ballenknow how syncookies work? [22:00]
jeevneed to find out why lilo locks up the bo
no, dood i dont know any of that stuff 		[22:00]
ballenin the three way handshake the first syn packet is sent by the client to the server, the server responds normally with a SYN/ACK
but does not keep the SYN in the queue 		[22:01]
jeevcool [22:02]
ballenit just knows based on the sequence number it sent back to the client that it actually sent it [22:02]
jeevi've yet to try launching a second VPS
on my box 		[22:02]
ballenthat way the buffer never filled up
yea, assuming your CPU has virtulization extensions? 		[22:02]
jeevyea i got a decent box i wanna colo
i just learned about qemu the other
day
used to try xen, was decent 		[22:06]
ballentry ESXi? [22:06]
jeeveh
why so many things
i like kvm 		[22:06]
ballenjust VMware's products are wicked easy
to use
ESXi is a little tempermetial with hardware support though 		[22:06]
jeevkvm is easy [22:07]
ballenyea ESX just works though [22:07]
jeevi dunno what it is
so
root 3086 16.3 26.1 1197736 1061836 pts/0 Sl+ 21:58 1:37 qemu-system-x86_64 disk0.qcow2 -vga std -net nic,model=e1000,macaddr=00:11:22:33:44:55 -net tap -monitor stdio -vnc :2 -smp 2 -m 1024
root 3174 21.7 26.2 1211476 1064364 pts/1 Sl+ 22:05 0:39 qemu-system-x86_64 disk1.qcow2 -vga std -net nic,model=e1000,macaddr=00:11:22:33:44:56 -net tap -monitor stdio -vnc :3 -smp 2 -m 1024 -cdrom 7.2-RELEASE-amd64-disc1.iso
i'd like to get a second CPU for this box but not sure if i need it 		[22:08]
ballenyea not sure, what are you running or planning to run on it
FYI: https://www.vmware.com/tryvmware/index.php?p=free-esxi&lp=1
[22:09]
jeevnothing prodution [22:10]
ballenits a bare metal install around 128megs or so [22:10]
jeevdont care for anything like vmware [22:10]
ballenand managed via the VMware vSphere client
mmk 		[22:10]
jeevi guess the windows versions annoyed me enough not to care
i'm so excited about virtualization
i never was.
i wonder if my 400mhz xeon has capabilities! 		[22:11]
ballennope [22:12]
jeevi know heh [22:12]
ballencould run VMware and thats about it
and it'd be slow 		[22:13]
jeevi know man i was joking [22:13]
ballenindeed [22:13]
jeevdamn, freebsd install is going pretty slow though
247.9kb/s
if i recall correctly my previous install was a lot faster 		[22:13]
ballenyep [22:14]
jeevmaybe cause i'm running the git version
i need to rebuild kvm actually 		[22:14]
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wow man, all that and i never paid attention to
making sure the speeds are ok 		[22:29]
up_the_irons, you remember how long it takes to install bsd ?
what the data transfer is? 		[22:37]
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jeevdamn installation is nasty slow [23:25]
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