<li>domain - Your domain name.
<li>erpcdmachines - Your ERPCD authenticaion machines, one per line. This enables export of `/usr/annex/acp_passwd' and `/usr/annex/acp_dialup'.
<li>home - For new users, prefixed to usrename to create a directory name. Should have a leading but not a trailing slash.
+ <li>invoice_from - Return address on email invoices.
<li>lpr - Print command for paper invoices, for example `lpr -h'.
<li>nismachines - Your NIS master (not slave master) machines, one per line. This enables export of `/etc/global/passwd' and `/etc/global/shadow'.
<li>qmailmachines - Your qmail machines, one per line. This enables export of `/var/qmail/control/virtualdomains', `/var/qmail/control/recipientmap', and `/var/qmail/control/rcpthosts'. The existance of this file (even if empty) also turns on user `.qmail-extension' file maintenance in conjunction with `shellmachine'.