Update cheatsheets

openvpn

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# openvpn
+
+> OpenVPN client and daemon binary.
+> More information: <https://openvpn.net/>.
+
+- Connect to server using a configuration file:
+
+`sudo openvpn {{path/to/client.conf}}`
+
+- Try to set up an insecure peer-to-peer tunnel on bob.example.com host:
+
+`sudo openvpn --remote {{alice.example.com}} --dev {{tun1}} --ifconfig {{10.4.0.1}} {{10.4.0.2}}`
+
+- Connect to the awaiting bob.example.com host without encryption:
+
+`sudo openvpn --remote {{bob.example.com}} --dev {{tun1}} --ifconfig {{10.4.0.2}} {{10.4.0.1}}`
+
+- Create a cryptographic key and save it to file:
+
+`openvpn --genkey secret {{path/to/key}}`
+
+- Try to set up a peer-to-peer tunnel on bob.example.com host with a static key:
+
+`sudo openvpn --remote {{alice.example.com}} --dev {{tun1}} --ifconfig {{10.4.0.1}} {{10.4.0.2}} --secret {{path/to/key}}`
+
+- Connect to the awaiting bob.example.com host with the same static key as on bob.example.com:
+
+`sudo openvpn --remote {{bob.example.com}} --dev {{tun1}} --ifconfig {{10.4.0.2}} {{10.4.0.1}} --secret {{path/to/key}}`