The links are outdated, anyway I think the message is very important:
# cat /etc/e-smith/templates-default/template-begin================= DO NOT MODIFY THIS FILE =================
Manual changes will be lost when this file is regenerated.
Please read the developer’s guide, which is available
at https://dev.nethesis.it/projects/nethserver/wiki/NethServer
original work from http://www.contribs.org/development/
Copyright © 2013 Nethesis S.r.l.
http://www.nethesis.it - support@nethesis.it
The server configuration is managed by the e-smith template system: don’t change it by hand!