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Enabling TFTP Access on an Installation Server

During miniroot installations, Inst uses TFTP to transfer files from remote systems. For this reason, any system acting as the server for miniroot installations must allow tftp access. However, on factory-shipped Silicon Graphics systems, tftpd(1M) access is disabled in the /etc/inetd.conf file.

This procedure explains how to change the /etc/inetd.conf to allow tftp access.

Note: If your site has strict security requirements, step 2 of this procedure offers an option that limits tftp access to the distribution directory.

  1. Become the superuser on the installation server.

    % su

    Password:

    #

  2. Modify the tftp line in /etc/inetd.conf on the server.

    You can modify /etc/inetd.conf to allow tftp access in a way that suits the needs of your site. The default tftp entry in /etc/inetd.conf looks similar to this (your entry might contain additional arguments to the -s option):

    tftp dgram udp wait guest /usr/etc/tftpd tftpd -s /usr/local/boot

    Take any of these actions to modify the tftp entry:

  3. Put your changes into effect.

    # killall -v -HUP inetd

When the remote system is no longer needed for software installation, you can return the /etc/inetd.conf file to its original state, then enter the killall command to put your changes into effect.


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