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<title>ΑΣΦΑΛΕΙΑ ΔΙΚΤΥΩΝ ΚΑΙ ΕΠΙΚΟΙΝΩΝΙΩΝ ANTONIOU KALLIOPI 47441</title>
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<div id="header">
<h1>ΑΣΦΑΛΕΙΑ ΔΙΚΤΥΩΝ ΚΑΙ ΕΠΙΚΟΙΝΩΝΙΩΝ ANTONIOU KALLIOPI 47441</h1>
<div id="toc" class="toc2">
<div id="toctitle">Πίνακας περιεχομένων</div>
<ul class="sectlevel1">
<li><a href="#cheat-clone">1. Shorewall</a></li>
<li><a href="#_docker">2. Docker</a></li>
<li><a href="#_ssh_tunneling">3. SSH TUNNELING</a></li>
<li><a href="#_vpn">4. VPN</a>
<ul class="sectlevel2">
<li><a href="#_δημιουργία_δικτύων_στον_docker_host">4.1. Δημιουργία δικτύων στον docker HOST</a></li>
<li><a href="#_δημιουργία_δικτύων_in_docker_container">4.2. Δημιουργία δικτύων in docker container</a>
<ul class="sectlevel3">
<li><a href="#_για_σύνδεση_στο_ίντερνετ">4.2.1. Για σύνδεση στο ίντερνετ</a></li>
</ul>
</li>
<li><a href="#_ζητηματα">4.3. ΖΗΤΗΜΑΤΑ</a>
<ul class="sectlevel3">
<li><a href="#_allow_internet_connection">4.3.1. Allow Internet connection</a></li>
<li><a href="#_allow_only_connection_from_network_a_b_b_a_port_80">4.3.2. Allow only connection from Network A &#8594; B, B &#8594; A port 80</a></li>
<li><a href="#_open_ssh_tunnel_from_network_aport_80_masterport_8080_and_connect_from_host_master_port_9000">4.3.3. Open SSH Tunnel from NETWORK-A(port 80) &#8594; MASTER(port 8080) and connect from HOST &#8594; MASTER port 9000</a></li>
<li><a href="#_create_vpn">4.3.4. Create VPN</a></li>
</ul>
</li>
</ul>
</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-clone">1. Shorewall</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Το Shorewall είναι ένα εργαλείο τείχους προστασίας ανοιχτού κώδικα για το Linux που βασίζεται στο σύστημα Netfilter (iptables / ipchains) ενσωματωμένο στον πυρήνα του Linux, διευκολύνοντας τη διαχείριση πιο περίπλοκων σχημάτων διαμόρφωσης παρέχοντας ένα υψηλότερο επίπεδο αφαίρεσης για την περιγραφή κανόνων χρησιμοποιώντας αρχεία κειμένου.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_docker">2. Docker</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Το Docker είναι ένα πρόγραμμα εικονικοποίησης επιπέδου λειτουργικού συστήματος το οποίο αναπτύχθηκε από την Docker Inc.
Docker είναι ένα λογισμικό εικονικοποίησης σε επίπεδο OS και υποστηρίζει λειτουργικό σύστημα Linux και Windows. Για να χρησιμοποιήσετε το Docker σε Linux, πρέπει να χρησιμοποιηθεί το Ubuntu. Πρέπει να διασφαλιστεί η σωστή έκδοση του πυρήνα του Linux πριν την εγκατάσταση του Docker σε λειτουργικό σύστημα Linux. Το Docker διαθέτει επίσης ένα διανομέα Docker Registry ο οποίος διαθέτει μια λίστα υπηρεσιών πριν το χρησιμοποιήσετε.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_ssh_tunneling">3. SSH TUNNELING</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Μια σήραγγα Secure Shell (SSH) αποτελείται από μια κρυπτογραφημένη σήραγγα που δημιουργείται μέσω μιας σύνδεσης πρωτοκόλλου SSH. Οι χρήστες μπορούν να ρυθμίσουν σήραγγες SSH για να μεταφέρουν μη κρυπτογραφημένη κίνηση μέσω δικτύου μέσω κρυπτογραφημένου καναλιού. Μπορεί να χρησιμοποιηθεί και για την υλοποίηση VPN δικτύων και για πρόβαση σε υπηρεσίες intranet <em>(εσωτερικών δικτύων)</em> σε τείχη προστασίας. Παρέχει ένα τρόπο για να εξασφαλίσει την κυκλοφορία δεδομένων οποιασδήποτε συγκεκριμένης εφαρμογής,χρησιμοποιώντας τη σήραγγα οποιασδήποτε θύρας TCP/IP μέσω SSH.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_vpn">4. VPN</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Το εικονικό ιδιωτικό δίκτυο (VPN) είναι ένας τρόπος με τον οποίο δύο ή περισσότερα εταιρικά δίκτυα μπορούν να συνδεθούν μέσω δημόσιου δικτύου για να σχηματίσουν ένα φαινομενικά ιδιωτικό δίκτυο. Σήμερα, ο ορισμός του VPN έχει επεκταθεί ώστε να περιλαμβάνει μεμονωμένους απομακρυσμένους σταθμούς εργασίας συνδεδεμένους σε εταιρικό δίκτυο. Ένα VPN συνήθως απαιτεί από τους απομακρυσμένους χρήστες του δικτύου πιστοποίηση και συχνά ασφαλίζει τα δεδομένα με τεχνολογίες κρυπτογράφησης για να εμποδιστεί η υποκλοπή και η διάδοση ιδιωτικών πληροφοριών σε χρήστες που δεν είναι συνδεδεμένοι <em>(μη εξουσιοδοτημένοι χρήστες)</em>.</p>
</div>
<hr>
<div class="sect2">
<h3 id="_δημιουργία_δικτύων_στον_docker_host">4.1. Δημιουργία δικτύων στον docker HOST</h3>
<div class="exampleblock">
<div class="content">
<div class="paragraph">
<p>"create netowrk frist"</p>
</div>
<div class="paragraph">
<p>Για τη δημιουργία δικτύων, μέσα στα Containers του Docker, εκτελούμε τις εξής εντολές στο τερματικό :</p>
</div>
<div class="paragraph">
<p>docker network create --driver=bridge --subnet=<strong>IP_subnet/Prefix</strong> <strong>Network_name</strong></p>
</div>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_δημιουργία_δικτύων_in_docker_container">4.2. Δημιουργία δικτύων in docker container</h3>
<div class="exampleblock">
<div class="content">
<div class="paragraph">
<p>"connect network created to container"</p>
</div>
<div class="paragraph">
<p>Με την παρακάτω εντολή καθορίζουμε σε ποια δίκτυα θα συνδεθούν τα container που θα δημιουργηθούν.</p>
</div>
<div class="paragraph">
<p>Εκτελούμε την εντολή docker container ps για να βρούμε το όνομα του container που θέλουμε να συνδεθούμε. Έπειτα γράφουμε:</p>
</div>
<div class="paragraph">
<p>docker network connect <strong>Network_name</strong> <strong>Container_name</strong></p>
</div>
</div>
</div>
<div class="sect3">
<h4 id="_για_σύνδεση_στο_ίντερνετ">4.2.1. Για σύνδεση στο ίντερνετ</h4>
<div class="exampleblock">
<div class="content">
<div class="paragraph">
<p>Ωστόσο για την σύνδεση των container με το ίντερνετ, θα πρέπει να ρυθμίσουμε ως Gateway την κατάλληλη ip.
Με την παρακάτω εντολή:</p>
</div>
<div class="paragraph">
<p>ip route add default via <strong>Host_Network_ip</strong> dev <strong>interface</strong></p>
</div>
</div>
</div>
<div class="imageblock">
<div class="content">
<img src="data:image/png;base64,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
</div>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_ζητηματα">4.3. ΖΗΤΗΜΑΤΑ</h3>
<div class="sect3">
<h4 id="_allow_internet_connection">4.3.1. Allow Internet connection</h4>
</div>
<div class="sect3">
<h4 id="_allow_only_connection_from_network_a_b_b_a_port_80">4.3.2. Allow only connection from Network A &#8594; B, B &#8594; A port 80</h4>
<div class="paragraph">
<p>Eπικοινωνία Δικτύων Α &#8594; Β, Β &#8594; Α</p>
</div>
<div class="paragraph">
<p>Γι’ αυτή την επικοινωνία των δικτύων, θα χρειαστεί να ρυθμίσουμε το Shorewall.</p>
</div>
<div class="paragraph">
<p>Με την βοήθεια, της εντολής <strong>nano</strong>, ανοίγουμε τα αρχεία: interfaces, zones, policy, masq, rules</p>
</div>
<div class="ulist">
<ul>
<li>
<p><strong>nano /etc/shorewall/interfaces</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Προσθέτουμε το δίκτυο και την διεπαφή του.</p>
</div>
<table class="tableblock frame-all grid-all stretch">
<colgroup>
<col style="width: 25%;">
<col style="width: 25%;">
<col style="width: 25%;">
<col style="width: 25%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">ZONE</th>
<th class="tableblock halign-left valign-top">INTERFACE</th>
<th class="tableblock halign-left valign-top">BROADCAST</th>
<th class="tableblock halign-left valign-top">OPTIONS</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">eth0</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">detect</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">tcpflags,nosmurfs</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_for_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ethA</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">detect</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">tcpflags,nosmurfs</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_for_B</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ethB</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">detect</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">tcpflags,nosmurfs</p></td>
</tr>
</tbody>
</table>
<div class="ulist">
<ul>
<li>
<p><strong>nano /etc/shorewall/zones</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Προσθέτουμε το δίκτυο και τον τύπο του.</p>
</div>
<table class="tableblock frame-all grid-all stretch">
<colgroup>
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">ZONE</th>
<th class="tableblock halign-left valign-top">TYPE</th>
<th class="tableblock halign-left valign-top">OPTIONS</th>
<th class="tableblock halign-left valign-top">IN Options</th>
<th class="tableblock halign-left valign-top">OUT Options</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">fw</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">firewall</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ipv4</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ipv4</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_B</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ipv4</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
</tbody>
</table>
<div class="ulist">
<ul>
<li>
<p><strong>nano /etc/shorewall/policy</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Προσθέτουμε τις επιτρεπόμενες κινήσεις από μέσα προς τα έξω και ανάποδα.</p>
</div>
<table class="tableblock frame-all grid-all stretch">
<colgroup>
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">SOURCE</th>
<th class="tableblock halign-left valign-top">DEST</th>
<th class="tableblock halign-left valign-top">POLICY</th>
<th class="tableblock halign-left valign-top">LOG LEVEL</th>
<th class="tableblock halign-left valign-top">LIMIT:BURST</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">fw</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">fw</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">fw</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">fw</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_B</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_B</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Network_name_A</strong></p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">net</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">all</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">DROP</p></td>
<td class="tableblock halign-left valign-top"></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">all</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">all</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">REJECT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">info</p></td>
<td class="tableblock halign-left valign-top"></td>
</tr>
</tbody>
</table>
<div class="ulist">
<ul>
<li>
<p><strong>nano /etc/shorewall/masq</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Γράφουμε τα ονόματα των διεπαφών.</p>
</div>
<table class="tableblock frame-all grid-all stretch">
<colgroup>
<col style="width: 50%;">
<col style="width: 50%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">INTERFACE</th>
<th class="tableblock halign-left valign-top">SOURCE</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">eth0</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ethA</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">eth0</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">ethB</p></td>
</tr>
</tbody>
</table>
<div class="ulist">
<ul>
<li>
<p><strong>nano /etc/shorewall/rules</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Προσθέτουμε την πόρτα και το πρωτόκολλο που θα χρησιμοποιήσει η επιτρεπόμενη κίνηση.</p>
</div>
<div class="paragraph">
<p>(Προσθέτουμε τις ανάλογες γραμμές έτσι ώστε τα δίκτυα, να έχουν επικοινωνία στην πόρτα 80.)</p>
</div>
<table class="tableblock frame-all grid-all stretch">
<colgroup>
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
<col style="width: 20%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top">ACTION</th>
<th class="tableblock halign-left valign-top">SOURCE</th>
<th class="tableblock halign-left valign-top">DEST</th>
<th class="tableblock halign-left valign-top">PROTO</th>
<th class="tableblock halign-left valign-top">DEST PORT</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Network_name_A</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Network_name_B</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">tcp</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">80</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">ACCEPT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Network_name_B</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">Network_name_A</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">tcp</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">80</p></td>
</tr>
</tbody>
</table>
<div class="paragraph">
<p><strong><em>Κάνουμε restart το shorewall και έπειτα κάνουμε ping στον worker και βλέπουμε ότι τρέχει.</em></strong></p>
</div>
</div>
<div class="sect3">
<h4 id="_open_ssh_tunnel_from_network_aport_80_masterport_8080_and_connect_from_host_master_port_9000">4.3.3. Open SSH Tunnel from NETWORK-A(port 80) &#8594; MASTER(port 8080) and connect from HOST &#8594; MASTER port 9000</h4>
<div class="exampleblock">
<div class="content">
<div class="paragraph">
<p>Για να υλοποιήσουμε την παραπάνω σηράγγωση, πρέπει πρώτα να εγκαθιδρύσουμε μία σηράγγωση SSH <em>(local port forwarding)</em> μεταξύ:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>του υπολογιστή μας <em>(HOST)</em> και του master</p>
</li>
<li>
<p>του master και του worker.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p><strong>ssh -t -L 9000:localhost:8080 &lt;user&gt;@&lt;Master_IP_Address&gt; ssh -L 8080:localhost:80 &lt;user&gt;@&lt;Worker_IP_Address&gt;</strong></p>
</div>
</div>
</div>
<div class="imageblock">
<div class="content">
<img src="data:image/png;base64,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
</div>
</div>
</div>
<div class="sect3">
<h4 id="_create_vpn">4.3.4. Create VPN</h4>
<div class="imageblock">
<div class="content">
<img src="data:image/png;base64,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
</div>
</div>
<div class="paragraph">
<p><em>Δημιουργούμε ένα VPN από την πλευρά του worker και φτιάχνουμε ένα χρήστη με τον οποίο θα συνδεθεί ο host στο VPN.</em></p>
</div>
<div class="exampleblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p><strong>create network</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>docker network create --attachable=true --driver=bridge --subnet=<strong>Network_IP_Address/CIDR</strong> --gateway=<strong>Gateway_IP_Address</strong> <strong>docker_Network_name</strong></p>
</div>
</div>
</div>
<div class="exampleblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p><strong>run container</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Δημιουργούμε ένα φάκελο τον οποίο θα χρησιμοποιήσουμε για το VPN.</p>
</div>
<div class="paragraph">
<p>docker run --net=none -it -v <strong>Destination_file</strong>:/etc/openvpn --rm <strong>ovpn_name</strong> ovpn_genconfig -u udp://<strong>IP_Address_HOST:Port</strong> \-N -d -c -p "route <strong>container &lt;Network_IP&gt;&lt;Network_mask&gt;</strong>" -e "topology subnet" -s <strong>Network_VPN_IP_Address/CIDR <em>(οι διευθύνσεις που παρέχονται από το VPN)</em></strong></p>
</div>
</div>
</div>
<div class="exampleblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p><strong>create pki</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Δημιουργία κλειδιού για σύνδεση χρήστη.</p>
</div>
<div class="paragraph">
<p>docker run --net=none -v <strong>Destination_file</strong>:/etc/openvpn --rm -it <strong>ovpn_name</strong> ovpn_initpki</p>
</div>
</div>
</div>
<div class="exampleblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p><strong>create vpn</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Δημιουργία εικονικού ιδιωτικού δικτύου.</p>
</div>
<div class="paragraph">
<p>docker run --detach --name <strong>name_VPNSERVER</strong> -v <strong>Destination_file</strong>:/etc/openvpn --net=<strong>docker_Network_name</strong> --ip=<strong>IP_container_VPNSERVER</strong> -p <strong>PORT_VPN_(physical_port)_</strong>:*&lt;virtual_port&gt;*/udp --cap-add=NET_ADMIN <strong>ovpn_name</strong></p>
</div>
</div>
</div>
<div class="exampleblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p><strong>create user</strong></p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Δημιουργία χρήστη.</p>
</div>
<div class="paragraph">
<p>docker run -v <strong>Destination_file</strong>:/etc/openvpn --rm -it <strong>ovpn_name</strong> easyrsa build-client-full <strong>client_name_VPN</strong> nopass</p>
</div>
</div>
</div>
<div class="exampleblock">
<div class="content">
<div class="ulist">
<ul>
<li>
<p>Αποστολή ρυθμίσεων χρήστη σε αρχείο.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>docker run -v <strong>Destination_file</strong>:/etc/openvpn --log-driver=none --rm <strong>ovpn_name</strong> ovpn getclient <strong>&lt;client_name_VPN&gt;&lt;path/filename.ovpn&gt;</strong></p>
</div>
</div>
</div>
<div class="paragraph">
<p><em>NOTE: Για την αποστολή του αρχείου από τον host στον χρήστη VPN, για να μπορεί να συνδεθεί, ο χρήστης θα πρέπει να εκτελέσει την εντολή <strong>openvpn –config _filename.ovpn</em></strong> .</p>
</div>
</div>
</div>
</div>
</div>
</div>
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<div id="footer-text">
Last updated 2020-01-21 19:30:50 +0200
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