2008 Nov 27 - Thu

TFTP

There are a number of TFTP servers available. I had written about atftpd in a related article. Research indicates that tftpd-hpa is another popular tftp server. This article provides a few hints on its installation. Although designed for remote boot capability for PXE (and for handling larger files), I use it mostly for device configuration and image loading.

Basic installation on Debian is straightforward: apt-get install tftpd-hpa

I created a local sub-directory called /var/local/tftpd. Traditionally, people use /tftpboot but I wanted the files in the traditional /var/local location instead.

I modified /etc/default/tftpd-hpa to have this line: OPTIONS="-l -c -u tftpd -s /var/local/tftpd"

I added a user and group called tftpd.

I disabled the tftp entry in /etc/inetd.conf, and restarted inetd.

Starting the service: /etc/init.d/tftpd-hpa start

I use iptables for inbound/outbound protection, so needed to add rules for the tftp protocol. For protocol inspection the connection tracker is needed: modprobe ip_conntrack_tftp

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