Hey, Rafael!

Hey, Rafael!

Crazy ideas on cloud infrastructure, provisioning, scaling platforms and beyond. Often wrong.


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An update to that RADIUS post

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After a lot of research and endless nights watching logs, trying to figure out why some users were successfully disconnected while others weren't, I have finally managed to understand the concept that FreeRADIUS does not handle counters bigger than 4GB well. S…

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musings

Bye bye Delicious. Hello Evernote!

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Well, with Delicious' death approaching, I was forced to grab all the bookmarks I've been collecting in the past 5 years and make a run to another service. According to some users, Evernote is like a ‘personal assistant'. Since I've been needing some assistanc…

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nas howto

Growing a RAID5 array (with LVM) online with MDADM

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Trawling through the web I've found a lot of information about growing RAID5 arrays, and some sparse information about growing EXT4 partitions. The only problem is they did not appear in the same spots, making this procedure a bit of a guessing game. I recentl…

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snippet xenserver

That damn xenserver-linuxfixup-disk.iso!

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In case you run into the same problem as me (that is, trying to unplug an already unavailable ISO SR from XenServer 5.6 and finding out that the xenserver-linuxfixup-disk.iso can't be removed), there's a way out. Granted, it's not that easy, but at least it wo…

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snippet sql

The Key to Traffic-based Tickets in RADIUS

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I spent ages looking for information on how to limit user access based on traffic used through a captive portal using pfSense, and couldn't find somewhere with an easy to use SQL command that was generic enough to use with daloRADIUS. Well, in case you were wa…

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snippet

How to batch convert FLAC to ALAC in one command with ffmpeg

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Can't get simpler than this! for i in *.flac; do ffmpeg -i "$i" -acodec alac "`basename "$i" .flac`.m4a"; done;…