Member Avatar for amit7471

i enterd static ip in modem and connect my 3 computers to that modem with automatically confic of system ip so now i want to access my one computer through any where via internet please let know how i do this

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  • Latest Post Latest Post by Ezekiel_1

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Brief note that expands the thread and focuses on security and reliability.

, , and pointed out the common ways to reach a machine from outside. Those approaches work, but for a long-term, safe setup the priority should be protecting the host and the home network first. Federal and vendor guidance recommends restricting direct RDP/desktop exposure and using an authenticated gateway (VPN or managed relay) plus multi-factor authentication where possible. (See CISA countermeasures and Microsoft RDP security guidance.)
CISA: Restrict or Disable RDP
Microsoft: Enhanced RDP security (TLS / NLA)

Practical, safe workflow to implement now: give the target PC a reserved internal IP on your router; run a small VPN server on the gateway or an always-on device (WireGuard is simple and fast; OpenVPN is another option); use a Dynamic DNS service so you can reach your home hostname when the ISP IP changes. After the VPN is up, connect through the VPN and then start the remote-desktop session inside the private network.
WireGuard quickstart
OpenVPN docs / Access Server
No‑IP DDNS update client info

Troubleshooting and quick hardening tips: test from a cellular hotspot to ensure you are coming from the Internet, not the LAN; keep OS and RDP/VPN software patched; require strong passwords and MFA on any cloud auth; avoid permanently leaving desktop services reachable from WAN. If you must limit remote access to a single IP, use a router or host firewall rule like the example below (replace CLIENT_IP and REMOTE_PORT with real values):

iptables -A INPUT -p tcp -s CLIENT_IP --dport REMOTE_PORT -m conntrack --ctstate NEW -j ACCEPT
iptables -A INPUT -p tcp --dport REMOTE_PORT -j DROP

This comment is intended to complement earlier posts by tying their suggestions to safer, modern practices and to give concise next steps for a working, secure remote-access setup.

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Member Avatar for JorgeM

You mentioned a modem, but do you have a router connected to the modem? If the ISP provided this "modem", now they typically provide you with one box that serves both functions.

In any case, what you really want is that on the router, look for the "port forwarding" or "NAT" configuration.

Say you want to be able to access an workstation on the internal network... on your router, you would create a port forwarding rule that states... on port 3389 on the public WAN port, forward the traffic to the internal IP of the target workstation.

that's basically it. You just match an port number on the WAN interface (public IP) to that of a port number listening on a computer within your network. Oh and you have to make sure that if you are running a local firewall on the computer on your private network, that it allows traffic on that port.

Then from the internet, launch the application that you will use to connect back to the computer in your network and either provide the fully qualified domain name of the WAN IP of the router, or just type in the IP address of that WAN interface.

Member Avatar for noselbond

You can use teamviewer to do this.
Click Here

Member Avatar for wpeckham

Logmein is a nice answer and does not require opening a port on your router, but is scheduled to go away.

I would open the router port, forwarding it to your machine. If you can handle it, I would use a different port than the RDP standard (3389), as RDP is not terribly secure. Running it on the standard port may open you to attack.

If you change the port, I would change the RDP listener port on the PC, then forward that port on the router.

Member Avatar for Ezekiel_1

How about trying real or ultra vnc?

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