NAME
utadm - Sun Ray network and DHCP configuration utility
SYNOPSIS
/opt/SUNWut/sbin/utadm -a interface-name [ -a
interface-name ] ...
/opt/SUNWut/sbin/utadm -c
/opt/SUNWut/sbin/utadm -d interface-name [ -d
interface-name ] ...
/opt/SUNWut/sbin/utadm -f
/opt/SUNWut/sbin/utadm -n
/opt/SUNWut/sbin/utadm -p
/opt/SUNWut/sbin/utadm -r
DESCRIPTION
The utadm command manages the private network and DHCP con-
figuration for the Sun Ray interconnect. It configures the
name lookup, host, network, netmask, and DHCP database files
so that Sun Ray appliances can be connected to a central
server host over one or more private subnets. One of the
following option flags must be specified: -a, -c, -d, -f,
-n, -p, or -r. The command must be run with superuser
privileges.
OPTIONS
The utadm command provides a way to manage the Sun Ray
private interconnect.
-a Configure the network interface specified by
interface-name as an Sun Ray subnetwork. In the
default case, an available private subnetwork address
is selected from the range 192.168.128.0 to
192.168.254.0. If the subnet selected is 192.168.N.0,
entries for the hosts, networks, and netmasks files
are generated using the hostname(1) of the server as
follows, where IF is interface-name:
File Entry
/etc/hosts: 192.168.N.1 hostname-IF
/etc/networks: SunRay-IF 192.168.N.0 SunRay
/etc/netmasks: 192.168.N.0 255.255.255.0
Once these entries are established, the network
interface is activated as hostname-IF using
ifconfig(1M). If the interface is already up and con-
figured, the user will be given the option to bypass
configuration of the network interface and only con-
figure DHCP on the interface. This allows configura-
tion of a Sun Ray interconnect on the primary inter-
face of the server. IP addresses on the Sun Ray sub-
nets are managed using the DHCP protocol, which
requires the addition of several macro entries to the
dhcptab(4) table to control parameters on Sun Ray sub-
nets. It is also possible to bypass DHCP configuration
by entering 0 as the first unit address when prompted.
The pntadm(1M) command is also used to create the pool
of available IP addresses for assignment to Sun Ray
appliances. Once the interface is configured and
activated, utfwadm(1M) is invoked to add the current
version of the firmware to the DHCP macros for the new
network. The user is prompted for approval of all the
default options, and may change them as desired.
The -a option implies the -c option if the initial
configuration has not yet been performed.
-c Initialize the basic configuration files for a Sun Ray
interconnect without setting up any subnetworks. This
involves making sure that the network database files
and framework for DHCP exist, and setting the
/etc/nsswitch.conf file so that network information
for the local Sun Ray subnets is obtained from local
files.
-d Delete the network interface specified by interface-
name from the list of configured Sun Ray subnetworks.
The specified interface must have been previously con-
figured using the -a option.
-f Takes this server offline, which prevents the creation
of new sessions on this server when it is within a
failover group. Existing sessions will not be killed,
but load balancing will not select this server for new
sessions.
-n Bring this server back online. This restores normal
operation of the server and allows new sessions to be
created on this server.
-p Print the current Sun Ray interconnect configuration,
showing for each interface the hostname, network, net-
mask, and number of IP addresses assigned to Sun Ray
appliances by DHCP.
-r Unconfigure all active Sun Ray interfaces and remove
all Sun Ray entries from the configuration databases.
FILES
The following files are used by this command:
/etc/nsswitch.conf
name service switch
/var/dhcp/dhcptab
file or NIS+ table
/etc/default/dhcp
DHCP service configuration file
/etc/inet/hosts
file or NIS+ table
/etc/inet/networks
file or NIS+ table
/etc/inet/netmasks
file or NIS+ table
/etc/hostname.*
hostname for each interface
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Availability | SUNWuto |
|_____________________________|_____________________________|
SEE ALSO
ifconfig(1M), dhtadm(1M), pntadm(1M), dhcpconfig(1M),
syslogd(1M), syslog(3), dhcp(4), dhcp_network(4),
dhcptab(4), nsswitch.conf(4), hosts(4), networks(4), net-
masks(4), syslog.conf(4), attributes(5), utfwadm(1M)
Alexander, S., and Droms, R., DHCP Options and BOOTP Vendor
Extensions, RFC 1533, Lachman Technology, Inc., Bucknell
University, October 1993.
Droms, R., Dynamic Host Configuration Protocol, RFC
1541,Bucknell University, October 1993.
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