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lflux

965 karma · joined June 26, 2011

Hi, I'm Ian
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lflux··on Devops/Sysadmin Cheatsheet
I always use 'iptables -L -n -v --line-numbers' - verbose will show you stuff like which interface the rule is set to, and line numbers can be useful when adding a rule before another with 'iptables -I'
lflux··on "Major service outage"
I've evaluated Stash a couple times, and I feel that Gitlab still has it beat.
lflux··on How to Build an Optimal Hadoop Cluster
"What is DISADVANTAGE about Rack Awareness at this point is the manual work required to define it the first time, continually update it, and keep the information accurate. If the rack switch could auto-magically provide the Name Node with the list of Data Nodes it has, that would be great."

This is where LLDP comes in handy. Run an LLDP agent on each node and enable LLDP on the switch access ports. Then it's just a matter of the NameNode fetching LLDP neighbor information from the switch (usually by using SNMP) and updating it's Rack Awareness.

(Disclaimer: I know nothing about Hadoop...)

lflux··on 24-bit color sucks
I'm not sure what's with the background, but it turned my laptop into a hairdryer.
lflux··on Crowding out OpenBSD
One data point: the on-board Broadcom NICs (BCM 719) on HP DL360 Gen8 servers isn't supported in OpenBSD yet.
lflux··on 29C3 presale has started
Chaos Communications Congress, an annual hacker convention in Germany run by CCC (Chaos Computer Club). Usually notoriously hard to get tickets to, but this year they switched venues (and cities) so hopefully it won't be an issue this time around.
lflux··on RIP Vile Rat, EVE Online Diplomat, IRL State Dept Rep Killed In Benghazi
Statement from Secretary of State: http://www.state.gov/secretary/rm/2012/09/197630.htm
lflux··on VMware launches Fusion 5
You're in for a surprise if you ever look at their server products. In my environment the VMware licenses cost more than the hardware they run on.
lflux··on Borderlands 2 16bit 'Demake' game
I e just like in Borderlands. All drops are randomly generated.
lflux··on At what point can I say I’ve “learned” a language?
When you can write something akin to the C++ FQA.
lflux··on Great work Visa, now I hate you
There are quite a few different payment processors here (Nets, PayEx, BABS, Dibs...), not really sure about how the backend works between banks. My card works in anything with a Visa logo, but there's no credit connected to it.
lflux··on Great work Visa, now I hate you
Same in Sweden as well.
lflux··on Tunneling Below Second Avenue (for New Subway)
It should be feasible to run it 24hrs during weekends only. Stockholm's subway does this and is closed normally at night weekdays. The headways are long enough (30+ minutes out on the branches) that repairs can be carried out if need be by switching to the other track (not sure if they actually do this regularly).
lflux··on Keyboard Hack
It has the same bug as the original MS keyboard, the arrow keys are in a cross and not an inverted-T. Not sure if I agree with the placement of pgup/dn, enter and backspace either.
lflux··on Keyboard Hack
Maybe it works well enough for him? It sure alleviated my RSI a lot. Switching to a MS Natural, remapping Ctrl and using US layout instead of Swedish more or less saved my wrists.

(Not that I wouldn't mind a Kinesis, but those weren't available when I really needed one).

lflux··on Keyboard Hack
For me, using left-Ctrl hurts so much after using Caps as Ctrl I never ever use it, except for the Ctrl-Alt chord for releasing the mouse pointer in VMware.
lflux··on Palm Pilot Graffiti
Sure does. Graffiti destroyed my handwriting totally.
lflux··on Sexism red/yellow cards at Defcon
Defcon and Blackhat are two different animals. Blackhat is the "business" conference, whereas Defcon is where mohawks and whacky t-shirts are the norm. Dressing as "business" at Defcon will get you accused of being a Fed.
lflux··on Oracle Sues Lodsys
See Bryan Cantrill's talk from LISA: http://www.youtube.com/watch?v=-zRN7XLCRhc&feature=playe... , where he has a good comparison of not anthromorpizing Larry Ellison and Oracle. Paraphrased, "Think of him of as a lawnmower. The lawnmower doesn't care about opensourcing Solaris. The lawnmower _can't_ care about it, it's a lawnmower".

Oracle cares about making money and protecting their revenue stream. Getting Lodsys of the backs of their customers is one way of doing that.

lflux··on Why airplane bathrooms have ashtrays
Fire hazard maybe? Trash cans were removed from commuter trains in Stockholm since they were constantly being set on fire. They're on our buses though.

Go to England and you won't see trash cans in train stations at all.

lflux··on New version of Emacs Nav is up
"Nav is a lightweight solution for Emacs users who want something like TextMate's file browser, or the Eclipse project view. Unlike these two, Nav only shows the contents of a single directory at a time."

Which is where it fails to be as useful as TextMate or Eclipse. I spend a lot of time jumping around directories when exploring new codebases or working in my Rails and Chef projects, just showing one dir doesn't cut it.

lflux··on Rick Falkvinge and his "a bit slow full-duplex 100Mbit" Internet Connection
Only Scandinavia really. All my french and spanish friends are really really jealous of our 100Mb+ connections here in sweden.
lflux··on Aziz Ansari releases DRM-free standup special for $5
Never heard of him either but looks like my flight tomorrow just got less boring
lflux··on In Sweden, cash is king no more
All grocery stores around me use a sealed cash system. I've been more often stuck behind people wanting to pay with cash when the cash scanner breaks down compared to the card machine being down.
lflux··on In Sweden, cash is king no more
Yes, Visa, MC and Amex take a cut. This infuriated shopowners to no end when they raised their tariffs, prompting a wave of "no charges under 50kr" or "3kr extra if you're paying with card (under x kr)"
lflux··on “What’s the waiter doing with the computer screen?”
In Sweden, they're all TFTs these days. Even the non-touch ones.
lflux··on Headphones for Hackers
We solve this by having most everyone use jabber to communicate, so minor interruptions are less frequent since they are shifted to IM.
lflux··on Headphones for Hackers
DT770s are one of the "standard" studio monitoring headphones, and seen pretty often among touring sound techs (esp the M version which is the one meant for drummers due to higher volume and isolation).

I've used a pair of them since 2005 for office work and for serious front-of-house mixing. They sound great and hold up great.

lflux··on Why I Still Use Emacs
Neither those nor emacs-nav come close to working and looking the same way the file tree drawer in TextMate (or other IDEs) does. speedbar only shows directories, not files, when I navigate dirs in it.
lflux··on Why I Still Use Emacs
Generally I use vimdiff when working with tests and use it for diffing between the expected output and the real output. It's run in the terminal as opposed to inside my huge emacs process and I don't really know why else I don't use ediff, vimdiff is just part of my editing workflow.
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