diff --git a/README.md b/README.md
index 2b22c9b..e20acd1 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,38 @@
-### notes:
-- Use '''RUSTFLAGS='-C target-feature=+crt-static' cargo build --trarget x86_64-unknown-linux-musl''' to make static binary
+#### notes:
+- Use 'RUSTFLAGS="-C target-feature=+crt-static" cargo build --trarget x86_64-unknown-linux-musl' to make static binary
+
+#### example openvpn configuration
+```
+verb 2
+server 10.44.0.0 255.255.0.0
+server-ipv6 2a00:dead:beef:code::/64
+script-security 2
+remote-cert-tls client
+port 1195
+proto udp
+proto udp6
+dev vpn1
+dev-type tun
+route-metric 100
+
+crl-verify /etc/openvpn/server/vpn-crl.pem
+
+topology subnet
+client-connect "/usr/local/bin/client-connect -c connect -4 10.44 -6 2a00:dead:beef:code -o"
+push "dhcp-option DNS 8.8.8.8"
+push "dhcp-option DNS 8.8.4.4"
+push "dhcp-option DNS 2001:4860:4860::8888"
+push "dhcp-option DNS 2001:4860:4860::8844"
+push "route-ipv6 2a00:dead:beef:code::/64"
+push "route-ipv6 2000::/4"
+push "route-ipv6 3000::/4"
+push "route-ipv6 200::/7"
+push "redirect-gateway def1"
+
+keepalive 10 30
+cipher AES-256-GCM
+replay-window 128 15
+mute-replay-warnings
+
+management /run/openvpn-server/vpn-management.sock unix
+```
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