Mailserver with ldap tutorial – part 1: openldap

In this post I’m going to describe how to setup openldap as a user database for my mailserver where also the maildomains, addresses and -boxes are stored.

This is step 1 of the 8 step tutorial for setting up a mailserver with openldap, postfix and dovecot using virtual users. You can find the overview here.
I’m asuming that all commands are executed with root rights. Of course you might also use sudo.

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mailserver with ldap tutorial – overview

In this post I’m going to describe setting up a mail server using postfix, dovecot and LDAP with virtual mailboxes.
Although I’m extending extend my current mail server configuration ( ) by using LDAP as single point of administration I’m going to describe the complete setup. I did this for testing on clean debian squeeze virtual box. The documentation of my configuration is mainly for myself to remember,. But as it might help others with their configuration I’m publishing it.
When developing this config I was mainly inspired by the configuration by Michael Hammer.

The steps for configuring the server are:

  1. Setting up LDAP
  2. Setting up dovecot
  3. Setting up postfix
  4. Testing
  5. Setting up virus and spam protection
  6. Setting up filtering
  7. Setting up mobile access
  8. Setting up web acccess

These steps I will describe in detail in several post over the next days.

my private cloud – the groupware part

In this post I’m describing my quest for a suitable software for the groupware part of my private cloud. The requirements have been described in the first part of this series. However they shall be explained in detail here.

Usually one expects a groupware suite to offer at least the following services:

  • email
  • calendaring, espacially invitation for appointments to other users
  • contacts
  • notes

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linux on a MacBook – fedora 16

Since version 16 uses fedora grub2 which supports EFI, MacBooks should theoretically boot Fedora directly without using rEFIt. Some older models of Apple Laptops require a little workaround though.

On Jason Montleon is describing how this can work. I’m going to describe as a “copy-paste-tutorial” how I installed Fedora 16 on my 5 year old MacBook using that directions.
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my private cloud

Cloud services become more an more popular although there are some aspects why giving away your data to big companies might be not the best idea. In this article I describe the idea of creating my private cloud.

Of course cloud services like dropbox, Google or Apple’s iCloud seem to be a nice thing to have. Synchronizing bookmarks and settings of different programs between my computers, accessing (at least some important) documents from everywhere on the world, sharing pictures and movies with friends and of course email, calendaring and so on. And all of this for free? To nice to be true?
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RAW-Thumbnails for .NEF-Files

By default Nautilus does not create thumbnails for RAW images. Installing raw-thumbnailer should help. For Nikon RAW images (.NEF) this didn’t work for me initially. But there is a simple workaround:

Under /usr/share/thumbnailers/ create a file nef-thumbnailer.thumbnailer with the following content:

[Thumbnailer Entry]
Exec=/usr/bin/gnome-raw-thumbnailer -s %s %i %o