hardlinking rpms in multiple directories

Submitted by thomas on Thu, 08/16/2012 - 15:27

We maintain multiple repositories, many of which have the same rpms repeated in different locations. In order to save space we use hardlinking extensively. The hardlink command does an ok job of finding things to link, but we are only really interested in rpms and don't want repomod.xml or comps getting linked so I wrote a little python script to hard link all the rpms based on a checksum. The script is over at my github. hardlink_rpms

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rpm hardlink link python
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Linux

using procmail with mdbox in dovecot (deliver or dovecot-lda)

Submitted by thomas on Thu, 08/02/2012 - 11:43

When using an mdbox or maildir mailbox, you need to use the dovecot-lda to deliver the message and not allow procmail to do this directly. I had a few issues getting this to work properly, here are the details of getting it going.

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exim dovecot procmail mdbox
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Linux

using exim to filter aliases with #exim filter

Our aliases are spammed like any other account, but filtering on them would require making a real account. I wanted to be able to filter aliases without creating accounts for everything. My first solution was to create an account and filter on that one, then using $original_local_part I could forward to a filtered alias. This works but if someone discovers the filtered alias, they can bypass the filtering.

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exim aliases filtering spam
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Linux

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