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Paul,
<p>I haven't seen an update from our discussion several weeks ago,
so I thought I'd put to paper some notes and queries about the
move towards Cloudflare proxying.</p>
<p>My understanding is that UWA has decided (in response to one of
the steps in the ANU data breach) that websites hosted on
130.95.0.0/16 (UWA's IP range) should not be open to the general
internet, and instead should be protected by a reverse proxy (in
this case, Cloudflare). To this end, DNS is being pointed at
Cloudflare (I assume because the DNS service comes with the web
proxy service?) and eventually ports 443 and 80 inbound will be
closed at the border firewall (with an exception for the
Cloudflare proxies).<br>
</p>
<p>Queries:</p>
<ul>
<li>What is the progress on getting access to the Cloudflare
dashboard? We would like to start on migration of services
before ports 443 and 80 start being blocked.</li>
<li>Are there any other ports (apart from 80/443) that will be
blocked at the border?<br>
</li>
<li>Is there any progress towards treating 130.95.13.0/24 as
"outside" in the core firewall (and thus side-stepping the need
to place UCC services behind Cloudflare)?</li>
</ul>
<p><br>
</p>
<p>Examples of services that cannot work with the Cloudflare setup
(running both HTTP and non-HTTP on the same hostname):</p>
<ul>
<li>GitLab (source control server): This runs both a web server
(for viewing source code, and managing permissions) and a SSH
server (used for uploading code in a secure manner). Neither of
these services support DNS "SRV" records (which would permit
different IP addresses for HTTP/HTTPS and other services).<br>
</li>
<li>"Big Blue Button" (Video conferencing system): This sends its
video streams over UDP to a collection of high ports (audio is
sent over websockets). This system has been used to great effect
by the clubs impacted by the COVID-19 Cameron Hall shutdown, to
host their normal events in a virtual space.</li>
<li>We currently have `secure.ucc.asn.au` that "hosts" a whole
range of encrypted services (IMAP, POP3, webmail, VPN).</li>
</ul>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
John Hodge [TPG]
UCC Wheel Member</pre>
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