chore: Linking all WireGuard VPN series

content/tutorials/how-to-setup-your-own-wireguard-vpn-server/index.md

@@ -72,6 +72,8 @@ Adapt the VPS size to fit with your need to avoid extra charge of overuse bandwi
 
 Once your VPS ready and running, it's recommended to update your OS first using `apt update && apt upgrade` command and `reboot` your VPS.
 
+> _If you want to manage **WireGuard** peers (client) on a single server easily, you might be interested to read "[Installing WireGuard-UI to Manage Your WireGuard VPN Server]({{< ref "/tutorials/installing-wireguard-ui-to-manage-your-wireguard-vpn-server/index.md" >}})"._
+
 ### Install WireGuard
 Install WireGuard using `sudo apt install wireguard` command. Once WireGuard is installed, we need to generate private and public key pairs for our WireGuard server.
 

content/tutorials/installing-wireguard-ui-to-manage-your-wireguard-vpn-server/index.md

@@ -304,6 +304,8 @@ After adding your peers (clients), press **"Apply Config"** and try to connect t
 
 ![WireGuard UI clients page](wg-ui-clients.png#center)
 
+What next? How about [Configure WireGuard VPN Clients]({{< ref "/tutorials/configure-wireguard-vpn-clients/index.md" >}})?
+
 ### Notes
 - If you have some technical difficulties setting up your own WireGuard server, I can help you to set that up for small amount of **IDR** (_I accept **Monero XMR** for **credits** if you don't have Indonesia Rupiah_).
 - To find out how to contact me, please visit [https://www.ditatompel.com/pages/contact](https://www.ditatompel.com/pages/contact).