391 lines
14 KiB
HTML
391 lines
14 KiB
HTML
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<title>‎</title>
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<meta name="generator" content="Org mode" />
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<meta name="author" content="Bob Mottram" />
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<meta name="description" content="How to use OpenVPN on Freedombone"
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/*]]>*/-->
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</style>
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<link rel="stylesheet" type="text/css" href="freedombone.css" />
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<script type="text/javascript">
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/*
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@licstart The following is the entire license notice for the
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JavaScript code in this tag.
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Copyright (C) 2012-2017 Free Software Foundation, Inc.
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The JavaScript code in this tag is free software: you can
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redistribute it and/or modify it under the terms of the GNU
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General Public License (GNU GPL) as published by the Free Software
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Foundation, either version 3 of the License, or (at your option)
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any later version. The code is distributed WITHOUT ANY WARRANTY;
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without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
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As additional permission under GNU GPL version 3 section 7, you
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may distribute non-source (e.g., minimized or compacted) forms of
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that code without the copy of the GNU GPL normally required by
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section 4, provided you include this license notice and a URL
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through which recipients can access the Corresponding Source.
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@licend The above is the entire license notice
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for the JavaScript code in this tag.
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*/
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/*]]>*///-->
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</script>
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</head>
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<body>
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<div id="preamble" class="status">
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<a name="top" id="top"></a>
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</div>
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<div id="content">
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<div class="org-center">
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<div class="figure">
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<p><img src="images/logo.png" alt="logo.png" />
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</p>
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</div>
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</div>
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<center>
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<h1>OpenVPN</h1>
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</center>
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<blockquote>
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<p>
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"<i>The Net interprets censorship as damage and routes around it.</i>" – John Gilmore
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</p>
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</blockquote>
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<p>
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A Virtual Private Network (VPN) allows you to move your internet traffic to a different machine in a different geographical location by creating a private cryptographically protected route to that location. The usual use cases are to get around local censorship of the internet such as when you see the message "<i>this content is not available in your area</i>" when trying to play a video. Maybe you're on holiday and your hotel or workplace internet connection is censored. Using a VPN you can connect to your home server and then use the internet normally.
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</p>
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<p>
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Using a Tor browser is another way to get around censorship, but there might be occasions where you don't want to use a Tor browser or where Tor relays and bridges are blocked or where you want to run internet apps which aren't within a browser.
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</p>
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<p>
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On Freedombone the VPN is wrapped within a TLS layer of encryption, making it difficult for any deep packet inspection systems to know whether you are using a VPN or not. Since there is lots of TLS traffic on the internet your connection looks like any other TLS connection to a server, and this may help to avoid being censored. It's probably not possible for your local ISP to block TLS traffic without immediately generating a lot of irate customers, and stopping any kind of commercial activity.
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</p>
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<div id="outline-container-orgb96ecdd" class="outline-2">
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<h2 id="orgb96ecdd">Installation</h2>
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<div class="outline-text-2" id="text-orgb96ecdd">
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<p>
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ssh into the system with:
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</p>
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<div class="org-src-container">
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<pre class="src src-bash">ssh myusername@mydomainname -p 2222
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</pre>
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</div>
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<p>
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Select <b>Administrator controls</b> then <b>Add/Remove apps</b> then <b>vpn</b>. Choose the port which you want the VPN to operate on and then the install will continue.
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</p>
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<p>
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Only use ports 443 or 80 for VPN as an <i>absolute last resort</i>, since doing so will prevent other web based apps from running on your server.
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</p>
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</div>
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</div>
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<div id="outline-container-orgc55576d" class="outline-2">
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<h2 id="orgc55576d">Usage</h2>
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<div class="outline-text-2" id="text-orgc55576d">
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<p>
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When the installation is complete you can download your VPN keys and configuration files onto your local machine.
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</p>
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<div class="org-src-container">
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<pre class="src src-bash">scp -P 2222 myusername@mydomainname:/home/myusername/client.ovpn .
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scp -P 2222 myusername@mydomainname:/home/myusername/stunnel* .
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</pre>
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</div>
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<p>
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You will need to ensure that the <i>openvpn</i> and <i>stunnel</i> packages are installed. On an Arch based system:
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</p>
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<div class="org-src-container">
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<pre class="src src-bash">sudo pacman -S openvpn stunnel4
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</pre>
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</div>
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<p>
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Or on a Debian based system:
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</p>
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<div class="org-src-container">
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<pre class="src src-bash">sudo apt-get install openvpn stunnel4
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</pre>
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</div>
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<p>
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Now you can connect to your VPN with:
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</p>
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<div class="org-src-container">
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<pre class="src src-bash">sudo stunnel stunnel-client.conf
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sudo openvpn client.ovpn
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</pre>
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</div>
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<p>
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You should see a series of messages with "<i>Initialization Sequence Completed</i>" showing at the end. Leave the terminal open and perhaps minimize it to remain connected to the VPN. To leave the VPN close the terminal window.
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</p>
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</div>
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</div>
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<div id="outline-container-org8a983c5" class="outline-2">
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<h2 id="org8a983c5">Changing port number</h2>
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<div class="outline-text-2" id="text-org8a983c5">
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<p>
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Avoiding censorship can be a cat and mouse game, and so if the port you're using for VPN gets blocked then you may want to change it.
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</p>
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<div class="org-src-container">
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<pre class="src src-bash">ssh myusername@mydomainname -p 2222
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</pre>
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</div>
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<p>
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Select <b>Administrator controls</b> then <b>App Settings</b> then <b>vpn</b>. Choose <b>Change TLS port</b> and enter a new port value. You can then either manually change the port within your VPN configuration files, or download them again as described in the <a href="#orgc55576d">Usage</a> section above.
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</p>
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</div>
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</div>
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<div id="outline-container-orgc802140" class="outline-2">
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<h2 id="orgc802140">Generating new keys</h2>
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<div class="outline-text-2" id="text-orgc802140">
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<p>
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It's possible that your VPN keys might get lost or compromised on your local machine. If that happens you can generate new ones from the <b>Administrator controls</b> by going to <b>App Settings</b> then <b>vpn</b> then choosing <b>Regenerate keys for a user</b> and downloading the new keys as described in the <a href="#orgc55576d">Usage</a> section above.
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</p>
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</div>
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</div>
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</div>
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<div id="postamble" class="status">
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<style type="text/css">
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.back-to-top {
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position: fixed;
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bottom: 2em;
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right: 0px;
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text-decoration: none;
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color: #000000;
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background-color: rgba(235, 235, 235, 0.80);
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font-size: 12px;
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padding: 1em;
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display: none;
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}
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.back-to-top:hover {
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background-color: rgba(135, 135, 135, 0.50);
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}
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</style>
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<div class="back-to-top">
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<a href="#top">Back to top</a> | <a href="mailto:bob@freedombone.net">E-mail me</a>
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</div>
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</div>
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</body>
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</html>
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