Add OpenVPN and cloudflared setup documentation and configs

Co-Authored-By: Oz <oz-agent@warp.dev>

configs/openvpn/server.conf

@@ -0,0 +1,27 @@
+port 1194
+proto tcp-server
+dev tun
+user nobody
+group nogroup
+persist-key
+persist-tun
+keepalive 10 120
+topology subnet
+server 10.8.0.0 255.255.255.0
+ifconfig-pool-persist /var/log/openvpn/ipp.txt
+push "redirect-gateway def1 bypass-dhcp"
+push "dhcp-option DNS 1.1.1.1"
+push "dhcp-option DNS 1.0.0.1"
+ca /etc/openvpn/server/ca.crt
+cert /etc/openvpn/server/server.crt
+key /etc/openvpn/server/server.key
+tls-crypt /etc/openvpn/server/tls-crypt.key
+dh none
+ecdh-curve prime256v1
+crl-verify /etc/openvpn/server/crl.pem
+data-ciphers AES-256-GCM:AES-128-GCM
+cipher AES-256-GCM
+auth SHA256
+verb 3
+status /var/log/openvpn/openvpn-status.log
+log-append /var/log/openvpn/openvpn.log