Port forwarding is the act of using redirecting one port to another, commonly used to access a computer from behind a firewall with NAT.

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How to port forward?

I want to make a few servers (mostly Minecraft) to play with my friends without using Hamachi or Tunngle and i found out about port forwarding. I've tried a couple of tutorials online but didn't seem ...
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115 views

Port forwarding on Airport Express

I want to be able to access files on my new Raspberry Pi remotely. So I enabled sftp, but I cannot manage to access it remotely. Here are the details of the setup: I can access sftp on the Pi from ...
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66 views

forward subdomain to specific server

I am trying to forward remote desktop traffic to a particular computer inside a network. Is there a way to point or forward a sub domain to a specific computer inside a network? For example if I have ...
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90 views

port forwarding and copy back to local machine

I am typically logging in on a network via ssh and then to yet another computer again via ssh to my final destination computer. For instance a home server, and once there to one of my family's ...
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73 views

Conflicting Port Forwarding results

Ook so weird situation. I'm trying to run a server socket in a python program (bit of code don't worry about it). For it to work I need to forward a port for the server to run on. I've forwarded the ...
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53 views

(VNC) port opening issue on windows 7

I want to be able to access my pc with VNC from a remote location. Because my pc is behind a router (TP-Link WR841N) with NAT enabled, I've forwarded the the required port (5900) to my pc's local ...
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471 views

Can't Telnet to remote host - but can telnet locally (Ports 110,143,993,995)

I've been attempting to set up a Mail Server Via PostFix and DoveCot on ubuntu 14.04 for too long now and I'm on the home stretch of having it working. I'm running a virtual machine with ubuntu, I ...
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61 views

Windows port forwarding, local machine to server

I'm working on Windows 8. I'm trying to connect to an OpenStack cloud which is hosted on a remote server but has a public IP to the API. However, making API calls require calls to additional services ...
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71 views

CCTV require port forwarding for remote access - will this create a hacking risk?

I am thinking of installing a CCTV camera on my house. If I wish to view remotely I have to configure port forwarding on my router (BT Hub). The router handles the normal stuff - couple of ...
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16 views

Port Forwarding my apache server

I am trying port forwarding on my router, model: SAGEMCOM F@st3814 (couldn't find it in portforward.com). I have followed the general instructions and in the screenshot below I am trying to set it ...
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1answer
13 views

iDRAC 5 on home network?

So I bought a second hand Dell Poweredge 1950 R3 and I bought it with a iDRAC 5 interface card. I am going to use it for college this year and use it as a vSphere host as my college course requires a ...
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31 views

Port Forwarding stopped working with new wireless adapter

After my last question I ended up having to purchase a USB wireless adapter (Netgear A6210). However, now my port forwarding does not work. I've checked the ipconfig result and have ensured many ...
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18 views

How to properly setup a Wi-Fi extender to be able to access it later

My internet setup at home consits of a normal Thomson (TG789vn) router and a new AP/repeater. Now I managed to connect it using the bridge (and later repeater) mode, but I can't access or find the ...
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79 views

Can't open port 8443 on WiFi Router Huawei WS 330

When I try to open port 8443, it doesn't save the port configuration. However, all other ports on my router can be opened easily.
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187 views

What ports do I have to open for SMB sharing?

So I have a relatively simple Setup for a 5-people Company I am currently working on. This Setup includes: 1 Server 1 Router 3+ "Clients" I want to open a Windows Network share on the Server, to ...
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142 views

Port forwarding works locally over LAN IP but not over the router WAN IP from another building

I have a commercial setup where everything is on the the same xxx.xxx.xx.1-255 network. I have a D-link router (DIR-615) that is on this network in another building with the router IP as ...
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76 views

Issues getting VPNBook VPN and Soulseek to work together

So I set up a free PPTP VPN using VPNBook and I’m behind a router, and I opened ports thru 1 to 2000, and it works fine in my browser, but I can’t get Soulseek to work right. See there’s a thing this ...
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72 views

Port Forwarding with OpenVPN active on DD-WRT

At home, I have two networks, my home network, then a second network separated by a DD-WRT router, which I call my homework network. This homework network can be treated as a separate network to my ...
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2answers
449 views

SSH host: Could not resolve hostname

I am trying to do SSH localforward port setting in VI config file, so that I can connect Hive server to do some R programming. Steps followed: In shell, I configured below in VI config file: ...
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6answers
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How to send a tcp packet to a device inside WLAN with a local IP from an external network?

I have to send a command from the internet to a device in a WLAN, which is listening to the port 9999. The device itself is only assigned local IP. I also have n (2-100+) number of devices with the ...
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1answer
71 views

NAT port forwarding of the same service run on multiple hosts?

Is port forwarding of the same service running on distinct hosts behind a NAT, on the same port possible? For example, if there are two hosts 192.2.0.2 and 192.2.0.3 using the gateway(NAT) 192.2.0.1 ...
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43 views

Giving a local machine an external static IP ( can be just forwarded ports)

I've planned to make one of my home machines to be a mail server I can receive mail from other people on. I have a domain name for it, and I know I need a machine with a static external IP so I have a ...
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62 views

Port forwarding with SonicWALL doesn’t seem to work as expected

I have an AT&T modem that does passthrough to my SonicWALL TZ105. However, I still have devices connected to the AT&T modem (therefore they have an address from the AT&T DHCP server). I’m ...
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187 views

ZyXel P8702N portforwarding not working

I've recently moved to a new location and because of that I now have a new router. I have tried portforwarding before and everything has worked, since I have gotten this new router, I have not been ...
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143 views

Port Forwarding Xbox Live on SonicWALL

I just bought a TZ105 to get more familiar with SonicWALL products. I have an Xbox One and am I trying to port forward (get a Moderate or Open NAT). Services in "Xbox Live" Service Group HTTP ...
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93 views

Can't connect to ssh server by global IP address when not on the server's Wi-Fi network

When on the same network it works fine with either the global or local IP address being used. I am forwarding port 22 like this: IP Address Start Port End Port IP Address Start Port End Port ...
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116 views

Port forwarding issue (I think)

I made a very basic KryoNet server and client program. If I connect the client through localhost it works as expected. Now I want to connect to it from outside so I have setup a DNS for myself with ...
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1answer
81 views

Make RDP & VNC work within home LAN network?

I just need to open up posts/ forwards/ triggers on both Routers, not sure exactly HOW: RDP: 3389 VNC: 5900 I've already tried a few googled tutorials. It's not working. The machines can access ...
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2k views

Port 21 is open but I can't connect to FTP server

I have a very basic FTP server running on Windows 10. Right now, I have no trouble accessing this server from my WLAN. However, when I try to connect from outside my network—using my public IP on port ...
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1answer
208 views

How do I make a server accessible over the internet

I wrote a chat client and server in Java. It works but as I'm finding out, only locally. The goal is to get it to function over the web. I've tried quite a lot of things, and can elaborate if need ...
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69 views

Establishing an SSH connection between machines behind firewalls

I have two machines, A and C, each of which is behind a firewall so they can’t accept incoming SSH requests on port 22. I have a third machine, B, outside both firewalls and I wanted to SSH from A to ...
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110 views

SSH into remote computer from home (Port foward)

Sometimes the VPN at my friend's place goes down and there ends up being no way to access his computer remotely. I was looking up SSH port forwarding but do not really understand what I'm reading. ...
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ICS Port forwarding not working working when using Hyper-V virtual adapters

Description: I have a gateway machine (Win 2012 R2) which is also running Hyper-V. Hyper-V has replaced the physical network adapters with virtual ones. I have ICS enabled on the first virtual adapter ...
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138 views

Port Forwarding for 2 HTTP Servers (one of them is on VM)

I have a Dynamic DNS from noip.com and I have installed their client on my home server. I have also installed WAMPServer to use as an HTTP server (for testing purposes only as I'm a web developer) ...
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43 views

Can't setup port forwarding

I'm trying to setup port forwarding for my new game, so I can test it online. The game works well on lan when I use the local ip of the server. Here's what ipconfig says: And here is how I setup ...
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32 views

Share VPN via wifi and forward ports?

This is a sequel to this thread: Forwarding ports after carrier grade NAT? Anyway, someone said that I can download a free vpn (I still dont know what vpn to download) and share it via wifi.. So any ...
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145 views

Namecheap port forwarding

I bought a domain name (say x.com) on namecheap. When I go to x.com using my web browser (port 80), I get my index.html since I'm running apache. But when I try ssh user@x.com I get Connection ...
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554 views

Forwarding ports after carrier grade NAT?

I cant forward ports anymore to my Xbox cause turns out my ISP recently refreshed IPs and all their IPs are public now and they say you can only forward ports if I request a static IP for a large ...
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103 views

Both Xbox One and PlayStation 4 wants to listen on ports 80 and 443?

This is really a question about poor documentation more than anything. It seems both the Xbox One and PlayStation 4 wants to listen 80 and 443. As I’m in a household with a webserver listening ...
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64 views

Reverse Proxy, Port Forwarding for passing on Reverse SSH

I'm trying to access a webpage hosted on a device from an AWS public URL. The catch is this device's IP is not public. I am able to issue a command to the device locally (ssh -i path/to/Cert -R ...
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4answers
1k views

What are the differences between the 3 port types?

I have already read through a thread very similar to this one but I still didn't understand it. Could anyone explain the difference between well known, registered and dynamic ports. What I know so ...
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46 views

How to port forward successfully & mask between internal & external ports

When my bittorent client uses port 6881-6889 as listening port I suppose that is the internal port? How does one mask bittorrent client from ISP's? For example can I use virtual server configuration ...
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98 views

Accessing the Router Web interface via the internet (D-Link 2740U)

I'm using port forwarding on my home router (D-Link 2740u) so that it forwards incoming port 80 requests to a raspberry PI hosting a simple page that links to various other parts of my network. On ...
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2answers
1k views

Scanning my public IP address with Nmap finds TCP port 1720 open, is this a security concern?

When scanning my public ip address with Nmap I found out that I have open port on 1720/TCP. According Nmap service on it is H.323/Q.931. Researching uses of this port also brings up Microsoft ...
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218 views

How to port forward through two routers in a network

I am trying to connect my SQL server through public network. So, I am having lots of problem in understanding it. One router is AirOS's(Outside my house) another is Iball's Baton(Inside my house). ...
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4k views

how port forwarding in Huawei CPE B310

I have an internet connection via a 4G LTE CPE B310 router from Huawei, its local IP is 192.168.8.1, my laptop is the only user connected via wifi (I can use wired Ethernet) and it its assigned local ...
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205 views

Port forwarding working on Virtualbox but not on VMware Workstation for Centos7 virtual machine

I'm running Windows 7. I created a Centos7 virtual machine originally through Virtualbox and successfully set up port forwarding with these rules to allow SSH and HTTP: Protocol: TCP | Host IP: ...
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137 views

Why does bittorrent not require port forwarding? [duplicate]

I know that usually when you set up a connection between a data source and a data receiver that you need to port forward to gain access to the data source computer so I was wondering why you don't ...
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1answer
10 views

Enabling PortFowarding with Amper

Im trying to open ports on this router (Amper) its a fiber optics internet router and tv at the same time. My problem is, I have set all these ports opens as you can see in this picture but none of ...
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62 views

Google Compute Engine as a Minecraft server

I'm working on using a Google Compute Engine instance running CentOS 6.6 as a Minecraft server, and I'm curious if it is technically possible to use port forwarding to allow other users to access it. ...