SBE HW400c/2 User Manual

HighWire HW400c/2 User Reference Guide Rev 1.0

5.4.5 Configuring tftp with xinet

The servers that can be managed by the xinetd are each listed in a server-specific

description: The tftp server serves files using the Trivial File Transfer \
P

# w

# and to start the installation process for some operating systems.

service tftp
{

socket_type = dgram

per_source = 11
cps = 100 2
flags = IPv4
}

To enable the TFTP server, edit this file (as root), changing the line that reads

inux

istributions use different mechanisms for starting and stopping system processes, the

easiest way to do this is to send the HUP signal to the running xinetd process. To

ocate the process ID of the xinetd process that is currently

running on your system using the ps (process status) command, as in the following

fter executing this command, the TFTP server will be started on your system in

equests.

stem

following

# /etc/rc.d/init.d/xinetd start

configuration file located in the directory /etc/xinetd.d. The file for the TFTP
server is aptly named tftp, and looks like the following:

# default: off
#
#

rot col. The tftp protocol is often used to boot diskless \
ork tations, download configuration files to network-aware printers, \

disable

protocol = udp
wait = yes

user                    = root
server                  = /usr/sbin/in.tftpd
server_args             = -s /tftpboot

disable = yes

so that it reads disable = no.

Next, force the xinetd to reread its configuration files. Because all L
d

do this, you must first l

example:

# ps -eal | grep xinet

5 S 0 2292 1 0 76 0 - 946 - ? 00:00:00 xinetd

The example line shows the xinetd process ID number, in the fourth whitespace-
separated field (2292 in this example), which is the information that you will need to
restart the process. After collecting this information, you can cause the xinetd

rocess to reread its configuration files by executing a command like the following:

# kill -HUP 2292

A
re

onse to incoming TFTP r

If your system is running a Linux distribution such as Red Hat Linux that starts and stops sy

rocesses using rc scripts, you can simply restart the xinetd by invoking these scripts in the

p
wa

# /etc/rc.d/init.d/xinetd stop

Then;

October 10, 2006

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