Planning and Configuring HP-UX DCE 1.9

Chapter 8
Notes on Cell Administration
Miscellaneous Notes
102
Miscellaneous Notes
This section contains miscellaneous information about HP-UX DCE 1.9 cell administration.
• To better integrate HP-UX DCE with existing HP-UX systems, HP has added new functionality to the
passwd_export utility. Before exporting groups from the DCE registry to the /etc/group file, HP
passwd_export looks for the file /etc/opt/dce/sys.group and prepends any group information from
that file to the new /etc/group file. This allows an administrator to effectively override group
information from the network registry on the local system. Because existing HP-UX groups conflict with
the groups defined by the DCE architecture, HP has supplied a template file, /etc/opt/dce/sys.group,
that is installed on every HP-UX system when DCE is configured. This ensures that the /etc/group file
created by passwd_export will have the correct group IDs for the groups that HP-UX software relies on.
For example, bin::2 will be prepended to the new group file from the template file before bin::3 is
exported from the DCE registry to the group file. Existing HP-UX utilities that expect bin to be group ID
2, will then find the correct entry first in the /etc/group file.
• DCE utilities and applications open /dev/lan0 (or, depending on the configuration of the local host's
network interfaces, another /dev/lan* file) in order to obtain the local host's IEEE 802 address. This
address is used to generate UIDs. HP's DCE configuration tools ensure that /dev/lan* is world-readable.
However, if you update the filesets UX-CORE or LAN after installing and configuring HP-UX DCE, you
should verify that /dev/lan* is readable by world.