84 lines
4.7 KiB
HTML
84 lines
4.7 KiB
HTML
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>
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Robur's blog - qubes-miragevpn, a MirageVPN client for QubesOS
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</title>
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<meta name="description" content="A new OpenVPN client for QubesOS">
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<header>
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<h1>blog.robur.coop</h1>
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<blockquote>
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The <strong>Robur</strong> cooperative blog.
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</blockquote>
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</header>
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<main><a href="/index.html">Back to index</a>
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<article>
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<h1>qubes-miragevpn, a MirageVPN client for QubesOS</h1>
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<ul class="tags-list"><li><a href="/tags.html#tag-OCaml">OCaml</a></li><li><a href="/tags.html#tag-vpn">vpn</a></li><li><a href="/tags.html#tag-unikernel">unikernel</a></li><li><a href="/tags.html#tag-QubesOS">QubesOS</a></li></ul><p>We are pleased to announce the arrival of a new unikernel:
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<a href="https://github.com/robur-coop/qubes-miragevpn">qubes-miragevpn</a>. The latter is the result of work begun
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several months ago on <a href="https://github.com/robur-coop/miragevpn">miragevpn</a>.</p>
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<p>Indeed, with the ambition of completing our unikernel suite and the success of
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<a href="https://github.com/mirage/qubes-mirage-firewall">qubes-mirage-firewall</a> - as well as the general aims of
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QubesOS - we thought it would be a good idea to offer this community a unikernel
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capable of acting as an OpenVPN client, from which other virtual machines (app
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qubes) can connect so that all their connections pass through the OpenVPN
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tunnel.</p>
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<h2 id="qubesos--mirageos"><a class="anchor" aria-hidden="true" href="#qubesos--mirageos"></a>QubesOS & MirageOS</h2>
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<p>Unikernels and QubesOS have always been a tempting idea for users in the sense
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that a network application (such as a firewall or VPN client) could be smaller
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than a Linux kernel: no keyboard, mouse, wifi management, etc. Just network
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management via virtual interfaces should suffice.</p>
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<p>In this case, the unikernel corresponds to this ideal where, starting from a
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base (<a href="https://github.com/Solo5/solo5">Solo5</a>) that only allows the strictly necessary (reading and
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writing on a virtual interface or block device) and building on top of it all
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the application logic strictly necessary to the objective we wish to achieve
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reduces, in effect, drastically:</p>
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<ol>
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<li>the unikernel's attack surface</li>
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<li>its weight</li>
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<li>its memory usage</li>
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</ol>
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<p>We won't go into all the work that's been done to maintain and improve
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<a href="https://github.com/mirage/qubes-mirage-firewall">qubes-mirage-firewall</a> over the last 10
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years<sup><a href="#fn1">1</a></sup>, but it's clear that this particular unikernel has
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found its audience, who aren't necessarily OCaml and MirageOS aficionados.</p>
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<p>In other words, <a href="https://github.com/mirage/qubes-mirage-firewall">qubes-mirage-firewall</a> may well be a
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fine example of what can actually be done with MirageOS, and of real utility.</p>
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<hr>
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<p><tag id="fn1"><strong>1</strong></tag>: <a href="https://github.com/marmarek">marmarek</a>, <a href="https://github.com/yomimono">Mindy</a> or
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<a href="https://github.com/mato">mato</a> were (and still are) heavily involved in the work between QubesOS
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and MirageOS. We'd also like to thank them, because if we're able to continue
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this adventure, it's also thanks to them.</p>
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<h2 id="qubesos--miragevpn"><a class="anchor" aria-hidden="true" href="#qubesos--miragevpn"></a>QubesOS & MirageVPN</h2>
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<p>So, after a lengthy development phase for MirageVPN, we set about developing a
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unikernel for QubesOS to offer an OpenVPN client as an operating system. We'd
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like to give special thanks to <a href="https://github.com/palainp">Pierre Alain</a>, who helped us to better
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understand QubesOS and its possibilities.</p>
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<p>The unikernel is available here: https://github.com/robur-coop/qubes-miragevpn
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A tutorial has just been created to help QubesOS users install and configure
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such an unikernel: https://robur-coop.github.io/miragevpn-handbook/</p>
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<p>In the same way as <a href="https://github.com/mirage/qubes-mirage-firewall">qubes-mirage-firewall</a>, we hope to
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offer a solution that works and expand the circle of MirageOS and unikernel
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users!</p>
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</article>
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