Exim Configuration – Understanding Exim Configuration Files on Debian/Ubuntu

configurationdebianeximUbuntu

I want to understand what's going on with this Exim configuration directory.

In /etc/exim4, there's:

* exim4.conf.template
* update-exim4.conf.conf
* conf.d

The conf.d has a mess of directories and files, and inside each are a bunch of if statements which I find really different.

For example:

maildir_home:
  debug_print = "T: maildir_home for $local_part@$domain"
  driver = appendfile
  .ifdef MAILDIR_HOME_MAILDIR_LOCATION
  directory = MAILDIR_HOME_MAILDIR_LOCATION
  .else
  directory = $home/Maildir
  .endif
  .ifdef MAILDIR_HOME_CREATE_DIRECTORY
  create_directory
  .endif
  .ifdef MAILDIR_HOME_CREATE_FILE

My question is,

-where do the CAPS VARIABLES get defined?

how can I change them?
why are there so many if statements in these configuration files?

Best Answer

This is Debian/Ubuntu's way of managing Exim4. You'll need to limit yourself to using the dpkg-reconfigure exim4-config utility and it's config file, update-exim4.conf.conf to manage it, or, just blow it all away and manage it all yourself. Check out:

http://pkg-exim4.alioth.debian.org/README/README.Debian.html#completely-different-configuration

Related Solutions

Debian – How to check for modified config files on a Debian system

To find all Debian managed configuration files which have been changed from the default you can use a command like this.

dpkg-query -W -f='${Conffiles}\n' '*' | awk 'OFS="  "{print $2,$1}' | md5sum -c 2>/dev/null | awk -F': ' '$2 !~ /OK/{print $1}'

Edit (works with localized systems):

dpkg-query -W -f='${Conffiles}\n' '*' | awk 'OFS="  "{print $2,$1}' | LANG=C md5sum -c 2>/dev/null | awk -F': ' '$2 !~ /OK/{print $1}' | sort | less

Edit (works with packages with OK in the filename):

dpkg-query -W -f='${Conffiles}\n' '*' | awk 'OFS="  "{print $2,$1}' | LANG=C md5sum -c 2>/dev/null | awk -F': ' '$2 !~ /OK$/{print $1}' | sort | less

Ubuntu – How to determine JAVA_HOME on Debian/Ubuntu

For the JRE, something like this should do the trick:

JAVA_HOME=$(readlink -f /usr/bin/java | sed "s:bin/java::")

Best Answer

Related Solutions

Debian – How to check for modified config files on a Debian system

Ubuntu – How to determine JAVA_HOME on Debian/Ubuntu

Related Topic