dhcpdb2conf.1m (2010 09)

d
dhcpdb2conf(1M) dhcpdb2conf(1M)
NAME
dhcpdb2conf - convert DHCP client database to config file parameters
SYNOPSIS
dhcpdb2conf [-pac][-hdirntwu][
-s index][lan-interfaces]
DESCRIPTION
The
dhcpdb2conf command translates a client system’s DHCP database parameters (from
dhcpclient) into a set of standard configuration file parameters. This is an essential step for
configuring a DHCP client system, and is invoked by
auto_parms upon every reboot when DHCP is
active.
A DHCP client database can contain settings for such items as: hostname, IP address, and default gate-
way (a subset of the "initial identity parameters" managed by
set_parms and geocustoms). You can
list the contents of the database to the screen, create a set of configuration staging files, or execute direct
edits on existing configuration files using the values contained in the client database.
Arguments: You can provide a list of lan-interfaces on which to operate, such as "lan0 lan1". If you
specify no LAN interfaces,
dhcpdb2conf processes all entries referenced in the client’s DHCP database.
The entries are each defined as a unique LAN interface and a corresponding list of attributes.
Options
The following options determine the results of DHCP parameter processing.
-p Print results to the screen (standard output). This is the default action if neither
-a nor -c
is specified.
-a Apply directly: Using the results of the specified filters (see below), directly apply the
parameter definitions to the existing configuration files, for example, to
/etc/rc.config.d/netconf
. (This is how dhcpdb2conf is called from
auto_parms.)
-c Create copies: Create a set of staging files using the results of the selected filters (see
below). Each parameter processed is applied to its corresponding copy of one configuration
file [re]created by dhcpdb2conf.
For example,
/etc/rc.config.d/netconf
is copied to
/etc/rc.config.d/netconf.dhcp
. (If the file already exists and can be written, it is
overwritten; otherwise the command fails.) Once this staging file is created, the parameter
being processed is applied to the newly created staging file rather than the real configuration
file.
The following "filter" options control which parameters are processed. The options can be combined in
any manner. The default with no options is to process all attributes for each LAN interface.
-h Hostname: Process the HOSTNAME parameter.
-d DNS: Process the DNS parameter set (in /etc/resolv.conf): domain, nameserver
.
-i Interface: Process the INTERFACE parameter set: INTERFACE_NAME[],
IP_ADDRESS[], SUBNET_MASK[], BROADCAST_MASK[], LANCONFIG_ARGS[]
-r Route: Process the ROUTE parameter set: ROUTE_DESTINATION[],
ROUTE_GATEWAY[], ROUTE_COUNT[]
-n NIS: Process the NIS parameter set: NISDOMAIN, YPSET_ADDR
-t Time: Process the NTPDATE_SERVER parameter.
-w DHCP_SERVER: Prints the hostname of DHCP SERVER, which has the given IP address
for the interface. Options -a or -c have no effect. Option -w will print results only to the
screen (standard output).
-u Hostname: Do not update the HOSTNAME parameter in configuration files. If the -u option
is used with -a or -c, then the -h option has no effect.
-s index Set array index for the set of related parameters for one LAN interface in the configuration
files. For example, with -s0 (the default) the output would include
INTERFACE_NAME[0]=lan0.
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1