Netatalk software was expected to reach version 3.x with Debian Jessie. Unfortunatly due to some unresolved issue with the maintainers, Debian team opted to leave it out of Jessie and future releases. Debian Wheezy was the latest release with netatalk. To avoid loosing netatalk as a plugin openmediavault uses a debianized source of netatalk 3.x maintained by Adrian Knoth . Openmediavault does not maintain this software.
The server panel provides minimal options to the server, but it has an extra field in case you need more directives. The default configuration file is located in
/etc/netatalk/afp.conf. This is the default global section:
[Global] max connections = 20 mac charset = MAC_ROMAN unix charset = LOCALE guest account = nobody uam list = uams_dhx.so,uams_dhx2.so save password = no
Netatalk provides PAM modules, so a change of password in terminal or web interface should be reflected inmediately in AFP login.