Local, custom and persistent (/etc) config files in Debian

[Hector Oron <hector.oron@gmail.com>]

Hello,

I would like to do some changes to some configuration files (under /etc)... done
 -->  I create a package-config which changes all my configs

I would like to modify previous configuration files (filtered by sed)
and be able to change unchanged files as well... done
 -->  I create a package-config even more hackish

Which are current practices people doing in such cases? Is there a
better flow to customize configuration files via package system?

Are practices described on debathena [1] or config::model [2]
something we should follow?

[1] http://debathena.mit.edu/config-packages/
[2] http://wiki.debian.org/PackageConfigUpgrade

Best regards,
-- 
 Héctor Orón

"Our Sun unleashes tremendous flares expelling hot gas into the Solar
System, which one day will disconnect us."

-- Day DVB-T stop working nicely
Video flare: http://antwrp.gsfc.nasa.gov/apod/ap100510.html