how to access my pc on wan

Step 1: Ensure Your PC is Reachable

1. Get your Public IP Address
   • Search “What is my IP” on Google from your PC.
   • This is the address you’ll use to reach your network from outside.
2. Check if Your ISP allows inbound connections
   • Some ISPs block incoming traffic on common ports (especially on mobile/hotspot internet).
   • If blocked, you may need to request a static IP or use a VPN service.

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Step 2: Configure Your Router

1. Enable Port Forwarding
   • Log in to your router’s admin panel.
   • Forward the port(s) you need to your PC’s local IP.
     • For Remote Desktop (RDP): TCP port 3389.
     • For SSH: TCP port 22.
     • For VNC: TCP port 5900.
   Example: Forward TCP 3389 → 192.168.1.100:3389.
2. Reserve a Static Local IP
   • Assign your PC a static IP in router DHCP settings so port forwarding always works.

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Step 3: Secure Remote Access

• Windows PC (RDP)
  • Enable Remote Desktop:
    Settings > System > Remote Desktop > Enable.
  • Use your public IP + :3389 from outside (e.g., 123.45.67.89:3389).
  • Change RDP port or use a VPN for security.
• Linux / macOS
  • Use SSH (ssh user@publicIP).
  • Or install VNC server and forward port 5900.

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Step 4: Make it Reliable

1. Dynamic DNS (DDNS)
   • If your ISP changes your public IP frequently, use a free DDNS service (like No-IP or DuckDNS).
   • This gives you a domain (e.g., myhomepc.ddns.net) instead of remembering IP.
2. VPN Option (Safer)
   • Instead of exposing RDP/SSH directly, set up a VPN server on your router or PC (WireGuard, OpenVPN).
   • Connect to VPN, then access your PC like you’re on the LAN.

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Example Setup (Windows Remote Desktop over WAN)

1. Public IP: 123.45.67.89
2. Router Port Forwarding: TCP 3389 → 192.168.1.100:3389
3. On another computer:
   • Open Remote Desktop Client.
   • Enter 123.45.67.89:3389.
   • Log in with your Windows account.