Host Computer Configuration

Install tftp onto the Linux host computer

For CentOS I used yum

yum install tftp

yum install tftp-server

then I looked in the file

/etc/xinitd.d/tftp

1. default: off
2. description: The tftp server serves files using the trivial file transfer \
3. protocol. The tftp protocol is often used to boot diskless \
4. workstations, download configuration files to network-aware printers, \
5. and to start the installation process for some operating systems.

service tftp

{

       socket_type             = dgram
       protocol                = udp
       wait                    = yes
       user                    = root
       server                  = /usr/sbin/in.tftpd
       server_args             = -s /tftpboot
       disable                 = yes
       per_source              = 11
       cps                     = 100 2
       flags                   = IPv4

}

to see how tftp was configured by default. The file tell me that the tftp files should be located in the subdirectory

/tftpboot

turn the server on

/sbin/chkconfig tftp on

Set up rsh

turn on rsh

use yum to install the rsh server.

yum install rsh-server

edit /etc/xinitd.d/rlogin and rsh to allow server

# default: on
# description: rlogind is the server for the rlogin(1) program.  The server \
#       provides a remote login facility with authentication based on \
#       privileged port numbers from trusted hosts.
service login
{
       socket_type             = stream
       wait                    = no
       user                    = root
       log_on_success          += USERID
       log_on_failure          += USERID
       server                  = /usr/sbin/in.rlogind
       disable                 = no
}

Now reload xinitd

/etc/init.d/xinetd reload

edit the file /etc/hosts.allow

then add a file called ".rshosts" to the daq account with the IP addresses and usernames

test to see if rsh is running

rsh -l daq daq1 ls