A Debian VM with a TFTP server

<h1>A Debian VM with a TFTP server</h1>

<p>I try to avoid TFTP. It's a great and simple protocol from the past
century - but frequently, the alternatives: SCP, HTTPS, as an example,
work much more efficiently. That said: sometimes you can't escape it.
Sometimes it is the only alternative.</p>

<p>And then begins the quest for the proper software, as well as the
process of installing it, configuring, etc, etc.</p>

<p>Enough. I've made a 100MB ISO, which, upon bootup, starts a TFTP
server which allows both reading and writing of the files in /tftpboot</p>

<p>There is no persistent storage in this image. Upon bootup, you can ssh into the VM - using 'root' as a login, password 'tftpboot'</p>

<p>You can copy your files to the /tftpboot, likewise you can write to the /tftpboot via TFTP, even create the files</p>

<h2>Before you start this ISO</h2>

<p>Understand that the TFTP is a <b>completely insecure protocol</b>.</p>

<p>There are good reasons to <b>*not*</b> allow the overwriting the files via TFTP,
and much less to not allow the preset password for root with ssh enabled - both of which I did in this image.
</p>

<p>The niche for this VM is a completely isolated ephemeral network used 
for the device setup.</p>

<p><font color="red">By downloading this image you acknowledge you are doing this at your own
risk.</font></p>

<p>Here's a few checksums of the image so you can verify the image you download is the same as the one the checksums on this page were calculated from:</p>

<pre>
$ sha256sum tftpserver.iso 
a67e391a9fbf152d47252ced4dcf099f0a82ec24bbf2570542aae18b19e3693b  tftpserver.iso
$ sha1sum tftpserver.iso 
a25272b64c355030ee82c48f903720bfbfb222ce  tftpserver.iso
$ md5sum tftpserver.iso 
1fa22591feed92e2f658561974efff40  tftpserver.iso
$

</pre>