diff --git a/4. VPN/User1.ovpn b/4. VPN/User1.ovpn
new file mode 100644
index 0000000..1a56473
--- /dev/null
+++ b/4. VPN/User1.ovpn	
@@ -0,0 +1,111 @@
+
+client
+nobind
+dev tun
+comp-lzo
+resolv-retry infinite
+keepalive 15 60
+
+remote-cert-tls server
+remote 192.168.1.13 1194 udp 
+float
+
+<key>
+-----BEGIN PRIVATE KEY-----
+MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC7vVfFrsgkXC5K
+zdtvrW1GnhsZ4fFrw1r78Lg9wyMbB40rFCBGWyNaqC72Pjmcdy9NzpRgxUB5Hdc2
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+1YUYdqWLYeVJSIcdUrNKIM9RxijvSaTyAqrdCt4Fnts51AD8vOh3NqzaHmDEavyW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+wbtDXm3WOikCgYBZynHviMB/WefVhCEuPpwuIGhbm2juWyuD3+4/TZiTQPi3ubqm
+hdofs9/237/qKn+4RPV28Q5ItxEHvGrcE1o6d7A3vDKAXb6qabmYkl78Hd8OLf3P
+XpWz9oQYntWE5bXrNbSOubtKcKLGU0RHWUugHt0lbZoWV6n2hW+RxkgW4QKBgQCX
+dIL+RN3H6s4Zjns8Qn6brBfjUVUYZRPuWQNAlRc/YTYmzRnklTCx3WSxo+KU3N3n
+V2K/qZnQ9+9M6azJ0wZG4Kmm+w6Vzk0rCTKqzpYzY9LNWHHFdBe9RvLUVONo0eVi
+TCv7xfUYqON6VtjfYjKrsWh43P++7ZumSxFcznlGsQKBgQDZYsH4o/tmSmEzRqe4
+BI1GmedJMAADCVzO70zgHV3DPx9Tk8bvrVw1+h1LdVGHwoJ9qfBj2frPkekmscO2
+6c3+5UlZbOVKuAaSTY/U4pQu/Xy8UjNzWqgzCDO6hjzr38PmJ3Xu9hAcLraIILR5
+g9UXIIrFpKJfxz6V+/niWye+tA==
+-----END PRIVATE KEY-----
+</key>
+<cert>
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+</cert>
+<ca>
+-----BEGIN CERTIFICATE-----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+k9GW25+xt9bocEqxT4tOjf6I/X26eFKwcvzlAJY6u0SYKwGeNCQLUkx7ppSeswio
+JrAQZFPC0yxGUXt2yXlTOn9yb01bxraB/mgrrvBt+oUd9cC409hTPFnsGnlbDUqZ
+C00F0mWVH1v2Ouxanqm56pHiXaj5ARA2yw0BITgB/w==
+-----END CERTIFICATE-----
+</ca>
+key-direction 1
+<tls-auth>
+#
+# 2048 bit OpenVPN static key
+#
+-----BEGIN OpenVPN Static key V1-----
+de4f6e2397b6c1e496a203dfe8dfcc84
+88ce9721348425790df84143e2f2e737
+8cb7b53984bfee4d0bddfd12061efe82
+ba7af7cfd49f2f99ff1beef5b45c89c0
+800f410a4b1be52635152a9c2ba21f29
+926d49cda539d9e29ebf35bf26ab40e6
+c52bf23397b673a60cacda7e915d3fed
+b2ad40d14fb58fcadec029e843868635
+c4c0c2cd3c9d0d4f5f035ea174c39566
+193365c3745eadca33b0743d2d3c67d8
+eff74e57f99df258130782fc5622f76a
+5a27af8dff510cbac77054959b98821e
+e23cea375d59c16b0e23fab5d8ae3e11
+6da6359ec571122e1bdc3e49a940aeea
+d358f93928b6b36eaed8afa5dac160d6
+3a2bbba147ce67bf523724b7ce275389
+-----END OpenVPN Static key V1-----
+</tls-auth>
+
diff --git a/4. VPN/create_user.sh b/4. VPN/create_user.sh
new file mode 100644
index 0000000..6fa024b
--- /dev/null
+++ b/4. VPN/create_user.sh	
@@ -0,0 +1,6 @@
+USERNAME=User1
+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  > $USERNAME.ovpn
diff --git a/4. VPN/rm_user.sh b/4. VPN/rm_user.sh
new file mode 100644
index 0000000..ff43444
--- /dev/null
+++ b/4. VPN/rm_user.sh	
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+CLIENTNAME=test1
+U=$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
diff --git a/4. VPN/show_vpnUsers.sh b/4. VPN/show_vpnUsers.sh
new file mode 100644
index 0000000..5e20b50
--- /dev/null
+++ b/4. VPN/show_vpnUsers.sh	
@@ -0,0 +1,2 @@
+NAME=swarmlab-vpn-services                              # name of docker service
+docker exec -it  $NAME ovpn_listclients