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< / style >
< link rel = "stylesheet" href = "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" >
< / 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 docker (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 >
< li > < a href = "#_client_connect" > 8. client connect< / a > < / li >
< / ul >
< / div >
< / div >
< div id = "content" >
< div id = "preamble" >
< div class = "sectionbody" >
< div class = "paragraph" >
< p > < br > < / p >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "cheat-Docker" > 1. Install docker (Home PC)< / h2 >
< div class = "sectionbody" >
< div class = "paragraph" >
< p > HowTo: See < a href = "http://docs.swarmlab.io/SwarmLab-HowTos/labs/Howtos/docker/install.adoc.html" target = "_blank" rel = "noopener" > How to< / 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’ 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" >
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< 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=127.0.0.1 # Server IP < i class = "conum" data-value = "1" > < / i > < b > (1)< / b >
P=1194 # Server Port < i class = "conum" data-value = "2" > < / i > < b > (2)< / b >
OVPN_SERVER='10.80.0.0/16' # VPN Network < i class = "conum" data-value = "3" > < / i > < b > (3)< / b >
#vpn_data=/var/lib/swarmlab/openvpn/openvpn-services/ # Dir to save data ** this must exist **
vpn_data=$PWD/openvpn-services/ < i class = "conum" data-value = "4" > < / i > < b > (4)< / b >
if [ ! -d $vpn_data ]; then
mkdir -p $vpn_data
fi
NAME=swarmlab-vpn-services # name of docker service < i class = "conum" data-value = "5" > < / i > < b > (5)< / b >
DOCKERnetwork=swarmlab-vpn-services-network # docker network
docker=registry.vlabs.uniwa.gr:5080/myownvpn # docker image
docker stop $NAME #stop container
sleep 1
docker container rm $NAME #rm container
# rm config files
rm -f $vpn_data/openvpn.conf.*.bak
rm -f $vpn_data/openvpn.conf
rm -f $vpn_data/ovpn_env.sh.*.bak
rm -f $vpn_data/ovpn_env.sh
# create network
sleep 1
docker network create --attachable=true --driver=bridge --subnet=172.50.0.0/16 --gateway=172.50.0.1 $DOCKERnetwork
#run container see ovpn_genconfig
docker run --net=none -it -v $vpn_data:/etc/openvpn -p 1194:1194 --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 < i class = "conum" data-value = "6" > < / i > < b > (6)< / b >
# create pki see ovpn_initpki
docker run --net=none -v $vpn_data:/etc/openvpn --rm -it $docker ovpn_initpki < i class = "conum" data-value = "7" > < / i > < b > (7)< / b >
# see ovpn_copy_server_files
#docker run --net=none -v $vpn_data:/etc/openvpn --rm $docker ovpn_copy_server_files
#create vpn see --cap-add=NET_ADMIN
sleep 1
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 $docker < i class = "conum" data-value = "8" > < / i > < b > (8)< / b >
sudo sysctl -w net.ipv4.ip_forward=1
#show created
docker ps< / code > < / pre >
< / div >
< / div >
< div class = "colist arabic" >
< table >
< tr >
< td > < i class = "conum" data-value = "1" > < / i > < b > 1< / b > < / td >
< td > < strong > localhost< / strong > inside of a container will resolve to the network stack of this container< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "2" > < / i > < b > 2< / b > < / td >
< td > Port< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "3" > < / i > < b > 3< / b > < / td >
< td > Specify Addresses and Netmasks for VPN Clients< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "4" > < / i > < b > 4< / b > < / td >
< td > Directory to mount data< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "5" > < / i > < b > 5< / b > < / td >
< td > Name of docker services< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "6" > < / i > < b > 6< / b > < / td >
< td > Create config< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "7" > < / i > < b > 7< / b > < / td >
< td > keys< / td >
< / tr >
< tr >
< td > < i class = "conum" data-value = "8" > < / i > < b > 8< / b > < / td >
< td > Run docker vpn service< / td >
< / tr >
< / table >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "_create_user" > 4. Create user< / h2 >
< div class = "sectionbody" >
< div class = "listingblock" >
< div class = "title" > create-user.sh< / div >
< div class = "content" >
< pre class = "highlight" > < code class = "language-bash" data-lang = "bash" > USERNAME=test1
vpn_data=$PWD/openvpn-services/
docker=registry.vlabs.uniwa.gr:5080/myownvpn
docker run -v $vpn_data:/etc/openvpn --rm -it $docker easyrsa build-client-full $USERNAME nopass
docker run -v $vpn_data:/etc/openvpn --log-driver=none --rm $docker ovpn_getclient $USERNAME > $USERNAME.ovpn< / code > < / pre >
< / div >
< / div >
< div class = "listingblock" >
< div class = "title" > add to $USERNAME.ovpn file< / div >
< div class = "content" >
< pre class = "highlight" > < code class = "language-bash" data-lang = "bash" > client
nobind
dev tun
comp-lzo
resolv-retry infinite
keepalive 15 60
remote-cert-tls server
remote 192.168.1.5 1194 udp < i class = "conum" data-value = "1" > < / i > < b > (1)< / b >
float< / code > < / pre >
< / div >
< / div >
< div class = "colist arabic" >
< table >
< tr >
< td > < i class = "conum" data-value = "1" > < / i > < b > 1< / b > < / td >
< td > Host machine’ s IP. Not Docker Container IP Address< / td >
< / tr >
< / table >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "_rm_vpn_user" > 5. rm vpn user< / h2 >
< div class = "sectionbody" >
< div class = "listingblock" >
< div class = "title" > rm-user.sh< / div >
< div class = "content" >
< pre class = "highlight" > < code class = "language-bash" data-lang = "bash" > #!/bin/bash
CLIENTNAME=test1
U=$CLIENTNAME
vpn_data=$PWD/openvpn-services/
docker=registry.vlabs.uniwa.gr:5080/myownvpn
rm -f $vpn_data/pki/reqs/$CLIENTNAME.req
rm -f $vpn_data/pki/private/$CLIENTNAME.key
rm -f $vpn_data/pki/issued/$CLIENTNAME.crt
rm -f $vpn_data/server/ccd/$CLIENTNAME
rm -f $vpn_data/ccd/$CLIENTNAME
pem=$(sudo grep "CN=$U$" $vpn_data/pki/index.txt | cut -f4)
rm -f $vpn_data/pki/certs_by_serial/$pem.pem
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
rm -f $vpn_data_user_config/$CLIENTNAME.ovpn
rm -f $vpn_data_user_config1/$CLIENTNAME.ovpn< / 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" > NAME=swarmlab-vpn-services # name of docker service
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" > NAME=swarmlab-vpn-services # name of docker service
docker exec -it $NAME cat /tmp/openvpn-status.log< / code > < / pre >
< / div >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "_client_connect" > 8. client connect< / h2 >
< div class = "sectionbody" >
< div class = "listingblock" >
< div class = "title" > client connect< / div >
< div class = "content" >
< pre class = "highlight" > < code class = "language-bash" data-lang = "bash" > openvpn --config ./clientfile.vpn< / 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 2020-12-09 17:29:59 UTC
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