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</head>
<body class="article toc2 toc-right">
<div id="header">
<h1>VPN!</h1>
<div class="details">
<span id="author" class="author">Apostolos rootApostolos@swarmlab.io</span><br>
</div>
<div id="toc" class="toc2">
<div id="toctitle">Πίνακας περιεχομένων</div>
<ul class="sectlevel1">
<li><a href="#cheat-Docker">1. Install swarmlab-sec (Home PC)</a></li>
<li><a href="#_vpn">2. VPN</a></li>
<li><a href="#_create_vpn">3. Create VPN</a></li>
<li><a href="#_create_user">4. Create user</a></li>
<li><a href="#_rm_vpn_user">5. rm vpn user</a></li>
<li><a href="#_show_all_vpn_users">6. show all vpn users</a></li>
<li><a href="#_show_all_connected_vpn_users">7. show all connected vpn users</a></li>
</ul>
</div>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<table class="tableblock frame-all grid-all stretch">
<colgroup>
<col style="width: 33.3333%;">
<col style="width: 33.3333%;">
<col style="width: 33.3334%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top"><a href="http://docs.swarmlab.io">Home</a> <span class="icon"><a class="image" href="http://docs.swarmlab.io" target="_self"><i class="fa fa-home"></i></a></span></th>
<th class="tableblock halign-left valign-top"><a href="http://docs.swarmlab.io/Howtos">HowTos</a> <span class="icon"><a class="image" href="http://docs.swarmlab.io/Howtos" target="_self"><i class="fa fa-wpbeginner"></i></a></span></th>
<th class="tableblock halign-left valign-top"><a href="http://docs.swarmlab.io/lab">Labs</a> <span class="icon"><a class="image" href="http://docs.swarmlab.io/lab" target="_self"><i class="fa fa-mixcloud"></i></a></span></th>
</tr>
</thead>
</table>
<div class="paragraph right text-center">
<p><br></p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="cheat-Docker">1. Install swarmlab-sec (Home PC)</h2>
<div class="sectionbody">
<div class="paragraph">
<p>HowTo: See <a href="http://docs.swarmlab.io/lab/sec/sec.adoc.html" class="bare">http://docs.swarmlab.io/lab/sec/sec.adoc.html</a></p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
<div class="title">NOTE</div>
<div class="paragraph">
<p>Assuming you&#8217;re already logged in</p>
</div>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_vpn">2. VPN</h2>
<div class="sectionbody">
<div class="paragraph">
<p>A <strong><strong>virtual private network (VPN)</strong></strong> extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network. Applications running on a computing device, e.g., a laptop, desktop, smartphone, across a VPN may therefore benefit from the functionality, security, and management of the private network. Encryption is a common, though not an inherent, part of a VPN connection</p>
</div>
<div class="paragraph">
<p><a href="https://en.wikipedia.org/wiki/Virtual_private_network">More: wikipedia</a></p>
</div>
<div class="imageblock">
<div class="content">
<img src="data:image/png;base64,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
</div>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
<div class="title">NOTE</div>
<div class="paragraph">
<p><strong>OpenVPN</strong> is an open-source software that implements virtual private network (VPN) techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol that utilizes SSL/TLS for key exchange. It is capable of traversing network address translators (NATs) and firewalls. It was written by James Yonan and is published under the GNU General Public License (GPL).</p>
</div>
<div class="paragraph">
<p><a href="https://en.wikipedia.org/wiki/OpenVPN">More: wikipedia</a></p>
</div>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_create_vpn">3. Create VPN</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="title">create-vpn.sh</div>
<div class="content">
<pre class="highlight"><code class="language-bash" data-lang="bash">#!/bin/bash
IP=192.168.89.5 # Server IP
P=1194 # Server Port
OVPN_SERVER='10.80.0.0/16' # VPN Network
vpn_data=/var/lib/swarmlab/openvpn/openvpn-services/ # Dir to save data ** this must exist **
NAME=swarmlab-vpn-services # name of docker service
DOCKERnetwork=swarmlab-vpn-services-network # docker network
docker=registry.vlabs.uniwa.gr:5080/myownvpn # docker image
docker stop $NAME #stop container
sleep 3
docker container rm $NAME #rm container
# rm config files
sudo rm -f $vpn_data/openvpn.conf.*.bak
sudo rm -f $vpn_data/openvpn.conf
sudo rm -f $vpn_data/ovpn_env.sh.*.bak
sudo rm -f $vpn_data/ovpn_env.sh
# create network
sleep 2
docker network create --attachable=true --driver=bridge --subnet=172.50.0.0/16 --gateway=172.50.0.1 $DOCKERnetwork
read -d '' MULTILINE_EXTRA_SERVER_CONF &lt;&lt; EOF
duplicate-cn
max-clients 35000
topology subnet
EOF
#run container
sleep 3
docker run --net=none -it -v $vpn_data:/etc/openvpn --rm $docker ovpn_genconfig -u udp://$IP:1194 \
-N -d -c -p "route 172.50.20.0 255.255.255.0" -e "topology subnet" -s $OVPN_SERVER
# create pki
sleep 3
echo "new pki is disabled"
docker run --net=none -v $vpn_data:/etc/openvpn --rm -it $docker ovpn_initpki
#sleep 3
#docker run --net=none -v $vpn_data:/etc/openvpn --rm $docker ovpn_copy_server_files
#create vpn
sleep 3
docker run --detach --name $NAME -v $vpn_data:/etc/openvpn --net=$DOCKERnetwork --ip=172.50.0.2 -p $P:1194/udp --cap-add=NET_ADMIN $docker
sleep 5
sudo sysctl -w net.ipv4.ip_forward=1
#show created
docker ps</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_create_user">4. Create user</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="title">config</div>
<div class="content">
<pre class="highlight"><code class="language-bash" data-lang="bash">#!/bin/bash
IP=83.212.114.14
P=5194
vpn_data=/var/lib/swarmlab/openvpn/openvpn-services/
NAME=swarmlab-vpn-services
DOCKERnetwork=swarmlab-vpn-services-network
docker=registry.vlabs.uniwa.gr:5080/myownvpn
PATHNAME=/var/lib/swarmlab/openvpn/etc/vpn-data_user_config
vpn_data_user_config=$PATHNAME
vpn_data=/var/lib/swarmlab/openvpn/openvpn-services/
vpn_data_user_config=/var/lib/swarmlab/openvpn/etc/vpn-data_user_config
NAME=swarmlab-vpn-services
MANAGER=/var/lib/swarmlab/openvpn/etc/managers
WORKER=/var/lib/swarmlab/openvpn/etc/workers
MANAGERkeys=/var/lib/swarmlab/openvpn/etc/managers_keys</code></pre>
</div>
</div>
<div class="listingblock">
<div class="title">create-user.sh</div>
<div class="content">
<pre class="highlight"><code class="language-bash" data-lang="bash">#!/bin/bash
. ./config
sudo mkdir -p $vpn_data
sudo mkdir -p $vpn_data_user_config
sudo mkdir -p $MANAGERkeys
docker=registry.vlabs.uniwa.gr:5080/myownvpn
echo $vpnip
echo $#
docker=registry.vlabs.uniwa.gr:5080/myownvpn
echo $vpnip
echo $#
if [ $# -eq 1 ]; then
CLIENTNAME=$1
U=$CLIENTNAME
mkdir users
docker run -v $vpn_data:/etc/openvpn --rm -it $docker easyrsa build-client-full $CLIENTNAME nopass
sleep 3
docker run -v $vpn_data:/etc/openvpn --log-driver=none --rm $docker ovpn_getclient $CLIENTNAME &gt; users/$CLIENTNAME.ovpn
file="users/$CLIENTNAME.ovpn"
ps='remote '
pi="remote $IP $P udp"
grep -q "^$ps" $file &amp;&amp; sed -i "s/^$ps.*/$pi/" $file || sed -i "5a $pi" $file
ps='comp-lzo'
pi='comp-lzo no'
grep -q "^$ps" $file &amp;&amp; sed -i "s/^$ps.*/$pi/" $file || sed -i "6a $pi" $file
ps='resolv-retry'
pi='resolv-retry infinite'
grep -q "^$ps" $file &amp;&amp; sed -i "s/^$ps.*/$pi/" $file || sed -i "7a $pi" $file
ps='persist-key'
pi='persist-key'
grep -q "^$ps" $file &amp;&amp; sed -i "s/^$ps.*/$pi/" $file || sed -i "8a $pi" $file
ps='persist-tun'
pi='persist-tun'
grep -q "^$ps" $file &amp;&amp; sed -i "s/^$ps.*/$pi/" $file || sed -i "9a $pi" $file
ps='keepalive'
pi='keepalive 15 60'
grep -q "^$ps" $file &amp;&amp; sed -i "s/^$ps.*/$pi/" $file || sed -i "10a $pi" $file
else
echo "no clientname"
fi</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_rm_vpn_user">5. rm vpn user</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="title">rm-user.sh</div>
<div class="content">
<pre class="highlight"><code class="language-bash" data-lang="bash">#!/bin/bash
. ./config
CLIENTNAME=$1
U=$CLIENTNAME
if [ $# -eq 1 ]; then
sudo rm -f $vpn_data/pki/reqs/$CLIENTNAME.req
sudo rm -f $vpn_data/pki/private/$CLIENTNAME.key
sudo rm -f $vpn_data/pki/issued/$CLIENTNAME.crt
sudo rm -f $vpn_data/server/ccd/$CLIENTNAME
sudo rm -f $vpn_data/ccd/$CLIENTNAME
pem=$(sudo grep "CN=$U$" $vpn_data/pki/index.txt | cut -f4)
#/var/lab/gswarm/vpn-data/pki/certs_by_serial/BACA61827E65D0E5F695245519410952.pem
sudo rm -f $vpn_data/pki/certs_by_serial/$pem.pem
sudo sed -i "/CN=$U$/d" $vpn_data/pki/index.txt
echo $pem
docker run -v $vpn_data:/etc/openvpn --log-driver=none --rm -it $docker ovpn_revokeclient $CLIENTNAME remove
sudo rm -f $vpn_data_user_config/$CLIENTNAME.ovpn
sudo rm -f $vpn_data_user_config1/$CLIENTNAME.ovpn
else
echo "no client"
fi</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_show_all_vpn_users">6. show all vpn users</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="title">show-user.sh</div>
<div class="content">
<pre class="highlight"><code class="language-bash" data-lang="bash">. ./config
docker exec -it $NAME ovpn_listclients</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_show_all_connected_vpn_users">7. show all connected vpn users</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="title">show-conn-user.sh</div>
<div class="content">
<pre class="highlight"><code class="language-bash" data-lang="bash">. ./config
docker exec -it $NAME cat /tmp/openvpn-status.log</code></pre>
</div>
</div>
<div class="paragraph">
<p><br>
<br>
</p>
</div>
<hr>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
<div class="title">Reminder</div>
<div class="paragraph">
<p>Caminante, no hay camino,<br>
se hace camino al andar.</p>
</div>
<div class="paragraph">
<p>Wanderer, there is no path,<br>
the path is made by walking.</p>
</div>
<div class="paragraph">
<p><strong>Antonio Machado</strong> Campos de Castilla</p>
</div>
</td>
</tr>
</table>
</div>
</div>
</div>
</div>
<div id="footer">
<div id="footer-text">
Last updated 2020-07-09 15:06:14 UTC
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