po: Updated Dutch translation (translated by Erwin Poeze).
==================System Preparation==================.._doveauth:We have to create a system user, named `doveauth`.The `doveauth` user will execute Dovecot's authentication processes.We will also create an additional system group, named `dovemail`.The GID of the group `dovemail` will be the supplementary GID for allmail related Dovecot processes, e.g. the `dict` service for quota limits.And finally we will create the ``base_directory``, with it's subdirectories.It is the location for all domain directories and the virtual user's homedirectories.The example below shows the steps executed on a Debian GNU/Linux system...code-block::consoleroot@host:~# adduser--system--home/nonexistent--no-create-home--group\> --disabled-login--gecos"Dovecot IMAP/POP3 authentication user"doveauthroot@host:~# addgroup--systemdovemailroot@host:~# mkdir/srv/mailroot@host:~# cd/srv/mailroot@host:/srv/mail# mkdir0123456789abcdefghijklmnopqrstuvwxyzroot@host:/srv/mail# chmod771/srv/mailroot@host:/srv/mail# chmod751/srv/mail/*.._root-setuid-copy-of-deliver:root SETUID copy of deliver---------------------------..note:: This step is only necessary if you are still using Dovecot v\ **1**.xFor security reasons the permissions in the domain/user directories willbe very restricted.Each user will get its own unique UID_ and the GID_ from the domain.So it will be only possible for a user of the domain to access the domaindirectory (read only) and the user will get granted read write access onlyfor its home directory.For this reason it is necessary to provide a setuid_-root copy of Dovecot'sLDA_ (:command:`deliver`) for Postfix.Because Postfix will refuse to execute commands with root privileges, orwith the privileges of the mail system owner (normally `postfix`) you should`nobody` let do the job.Therefore the permissions will be set very restrictive again.Only `nobody` will be able to execute the setuid-root copy of:command:`deliver`...code-block::consoleroot@host:~# mkdir-p/usr/local/lib/dovecotroot@host:~# chmod700/usr/local/lib/dovecotroot@host:~# chownnobody/usr/local/lib/dovecotroot@host:~# cp/usr/lib/dovecot/deliver/usr/local/lib/dovecot/root@host:~# chownroot:`id-gnobody`/usr/local/lib/dovecot/deliverroot@host:~# chmodu+s,o-rwx/usr/local/lib/dovecot/deliver..include:: ../ext_references.rst