Compaq T1500 - Windows-based Terminals - 72 MB RAM, Руководство по установке

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Chapter 2
TFTP TFTP TFTP TFTP
TFTP is required in a network-boot environment. The TFTP server loads the
terminal’s operating system off the server into memory on the terminal. This
operating system then controls all other actions performed from the terminal. This
resource is used once each time a network-boot terminal is powered-up. If a
local-boot environment uses DHCP, and DHCP supplies option 18, the server
named in option 18 must support TFTP. The load on the server is the amount of
server resources required to copy approximately 1 MB of data from the server to
the terminal, for each terminal being turned on. The address of this server (and the
location of the file) is provided to the terminal, either by BOOTP or DHCP (see
above).
TFTP can also be used in conjunction with DHCP for providing additional options to
the terminal via DHCP option 18.
Note Note Note Note
TFTP is not supported for Microsoft NT.
For most UNIX systems, including Linux, SCO Openserver, and SCO UnixWare,
TFTP is launched via the
inet
program. To activate TFTP in this way, there must
be an entry in the
/etc/inetd.conf
(or
/etc/inet/inetd.conf
) file whose
first column is
tftp
. Depending upon the platform, TFTP can be run in either a
secure manner (every terminal connecting to the server via TFTP has access to
only the directory specified in this file) or in an unsecure manner (access to the full
system). Consult the documentation for the TFTP server (
in.tftpd
for Linux and
UnixWare,
tftpd
for SCO Openserver) by running
man tftpd
on the platform in
use by your organization.
NFS NFS NFS NFS
NFS is a protocol that allows directories residing on one computer to be accessed
from another computer or terminal.
Note Note Note Note
NFS is not yet supported for Microsoft NT.
This section describes the requirements for NFS configuration with respect to the
directory tree that allows a network-boot terminal to have access to the same
information as that for a local-boot terminal. (The information describing NFS
configuration for the optional network services support is described in Chapter 3 of
this document.)