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--- linux:ubuntu:openvpn [2018/09/06 16:59] – lunetikk
+++ linux:ubuntu:openvpn [2021/05/14 17:14] (current) – lunetikk
@@ Line 108: / Line 108: @@
 </key>
 </code>
+===== Commands =====
+^  Command  ^  Function  ^
+|   nmap -sL 10.8.0.*   |  shows all connected clients in the given IP range  |
 ===== Connecting a QNAP as client =====
@@ Line 168: / Line 173: @@
 Reload the "/etc/default/" configs
-systemctl daemon-reload
+<code>systemctl daemon-reload </code>
 Restart the OpenVPN
@@ Line 185: / Line 190: @@
 </code>
+===== Connecting a Raspbian 9 as client =====
+Install the client
+<code>
+apt-get update
+apt-get install openvpn
+</code>
+Copy the .ovpn file from your server to your client into /etc/openvpn/ \\
+Rename it to .conf, for example client.conf
+<code>
+mv client.ovpn client.conf
+</code>
+If you run OpenVPN with systemd you need to configure your configfiles in "/etc/default/openvpn"
+Add your filename (client) if you only want the single file to be recognized, add "all" if you want any .conf files to be loaded
+<code>
+AUTOSTART="client"
+#or
+AUTOSTART="all"</code>
+Reload the "/etc/default/" configs
+<code>systemctl daemon-reload</code>
+Restart the OpenVPN
+<code>systemctl restart openvpn</code>
+Check if your connection is up with ifconfig and ping your gateway (OpenVPN server)
+<code>
+# ifconfig
+tun0      Link encap:UNSPEC  Hardware Adresse 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
+          inet Adresse:10.8.0.6  P-z-P:10.8.0.2  Maske:255.255.255.255
+# ping 10.8.0.1
+PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
+bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=38.6 ms
+bytes from 10.8.0.1: icmp_seq=2 ttl=64 time=37.9 ms
+</code>
+and with systemctl
+<code>
+# systemctl status [email protected]
+● [email protected] - OpenVPN connection to client
+   Loaded: loaded (/lib/systemd/system/[email protected]; disabled; vendor preset: enabled)
+   Active: active (running) since Mon 2019-01-21 12:56:38 CET; 3min 6s ago
+     Docs: man:openvpn(8)
+           https://community.openvpn.net/openvpn/wiki/Openvpn23ManPage
+           https://community.openvpn.net/openvpn/wiki/HOWTO
+  Process: 1684 ExecStart=/usr/sbin/openvpn --daemon ovpn-client --status /run/openvpn/client.status 10 --cd /etc/openvpn --config /etc/openvpn/client.conf --writepid /run/openvpn/client.pid (code=exited, status=0/SUCCESS)
+ Main PID: 1686 (openvpn)
+   CGroup: /system.slice/system-openvpn.slice/[email protected]
+           └─1686 /usr/sbin/openvpn --daemon ovpn-client --status /run/openvpn/client.status 10 --cd /etc/openvpn --config /etc/openvpn/client.conf --writepid /run/openvpn/client.pid
+Jan 21 12:56:40 raspbian ovpn-client[1686]: ROUTE_GATEWAY 192.168.178.1/255.255.255.0 IFACE=wlan0 HWADDR=xx:xx:xx:xx:xx:xx
+Jan 21 12:56:40 raspbian ovpn-client[1686]: TUN/TAP device tun0 opened
+Jan 21 12:56:40 raspbian ovpn-client[1686]: TUN/TAP TX queue length set to 100
+Jan 21 12:56:40 raspbian ovpn-client[1686]: do_ifconfig, tt->did_ifconfig_ipv6_setup=0
+Jan 21 12:56:40 raspbian ovpn-client[1686]: /sbin/ip link set dev tun0 up mtu 1500
+Jan 21 12:56:40 raspbian ovpn-client[1686]: /sbin/ip addr add dev tun0 local 10.8.0.6 peer 10.8.0.1
+Jan 21 12:56:40 raspbian ovpn-client[1686]: /sbin/ip route add 10.8.0.1/32 via 10.8.0.1
+Jan 21 12:56:40 raspbian ovpn-client[1686]: GID set to nogroup
+Jan 21 12:56:40 raspbian ovpn-client[1686]: UID set to nobody
+Jan 21 12:56:40 raspbian ovpn-client[1686]: Initialization Sequence Completed
+</code>

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