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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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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45 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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How other applications that needs internet works, even my upnp disabled?

How other applications, like google chrome, or some games, that needs internet works, even my upnp disabled? And how to make my server-client based chat application make available to public networks ...
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13 views

Two routers “cascade”…?

I have two routers: a branded LTE router (router #1) and a "normal" 4G-ready tp link w8970 (router #2) I connect the LTE Router to the USB port on router #2 and the connection works correctly: I see ...
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8 views

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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1answer
18 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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1answer
28 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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13 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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46 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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1answer
37 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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19 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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1answer
17 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
581 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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1answer
17 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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32 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
62 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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18 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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100 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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21 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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2answers
47 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
6 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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1answer
22 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. ...
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1answer
83 views

ssh: connect to host port 22: Connection refused

I am trying to ssh into my new Raspberry Pi using MobaXterm but I keep getting the following error: ssh: connect to host ... port 22: Connection refused. Both the PC and Raspberry Pi have wired ...
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1answer
28 views

PF firewall: How to disable all filtering on loopback interface EXCEPT specific port forwarding rules?

PF question on OS X Yosemite 10.10.4: I know that set skip on lo0 disables all filtering (nat and redirects) on lo0, but what if I need to save the httpd port forwarding rules on this interface while ...
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3answers
170 views

How local host is shared to Internet?

Recently I have found websites which generate a public URL for a given local host. I'm immensely interested in understanding how a local host can be shared to Internet. After searching a lot I got ...
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2answers
37 views

Shared external IP address

So Here is my set-up: I have a raspberry pi behind a router. I set a static internal IP address for the pi. I configured the SSH config files and everything how I like it so far. I have a contab ...
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1answer
30 views

Use my home's public DNS hostname and port forwards internally

On my home gateway/router, I have multiple services running on various ports (SSH, IP camera over HTTP, etc) exposed to the internet via port forwarding. I also use these services internally while on ...
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1answer
86 views

Access IPv6 computer from IPv4-only network. Is it possible?

I recently changed from an ADSL 10 MB to a GPON 40 MB and since then I'm having a bad headache. My old ISP (ADSL) gave me always a valid public IPv4. Sometimes it changed but there was no problem ...
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36 views

How can I bypass proxy using tunneling?

I am trying to use tunneling to bypass proxy. I have a server running at http://52.25.74.139/. Now, my proxy server, which address is 10.2.0.10 at port 80 does not allow us to use facebook. I tried: ...
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20 views

Net-Gear router Hacked port 5000, don't no what to do [duplicate]

I have been through 4 routers already every router I get keeps getting hacked. It opens ports 5000, 80, 23, changes the firmware on my router and I can't take port forwarding off. Http & https is ...
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95 views

Port forwarding with micromax mmx219w plug and play WiFi modem

I'm using a micromax auto plug n play wi fi modem with router functionality, it provides 8 WiFi connections. Model: micromax mmx219w WiFi router. When connected to a USB port, it gets a external IP ...
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1answer
16 views

apache application in local computer needs to be run anywhere over internet

I'm running a apache server application in my local computer,All of computers connected to my router is able to access but a computer outside from router not able to access my application.I also ...
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Apache server in local computer needs to be run on internet

I have gone read your answer for "What is port forwarding and what is it used for?" question.Your explanation is great.I have one doubt please clarify that. I'm running a apache server application in ...
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43 views

Ports open in router settings, Firewall disabled, no DMZ's, port's still appear as closed, why?

So I'm currently attempting to host an IIS and opened the nessesary ports, I can connect to it via localhost and on other machines in the network, however when attempting to connect to it over WAN I ...
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31 views

I've port forwarded, and can access this IIS server locally, why can't I see it online through my public IP?

I've been searching around, and am stumped. I have an IIS server: and I can access it locally: but when I'm outside the workplace, on a different connection, I cannot access it, I am using my ...
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115 views

Cannot connect to server, error message says “java.net.ConnectException: Connection refused”

I have been trying to get a minecraft server running for some time now to no avail. I apologize for the fact that this is not as technically advanced a question as is intended for this forum, and that ...
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268 views

how to port forward to server + tunnel specific hosts route though openvpn client on tomato

Running Shibby Tomato v130 on an Asus RT-N66U. My goals are the following With Transmission running on the router have all torrent traffic route through an OpenVPN client also running on the ...
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1answer
22 views

Cannot port forward with Aztech router

Pre-conditions: Laptop connected to Aztech DSL5018EN router via Wi-Fi DHCP with MAC-IP Reservation Router firewall disabled Windows 7 Firewall with Inbound Rule for port 8080 (TCP/UDP) Microsoft ...
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11 views

Proxy to network interface based on port

I'm looking for http proxy, which will forward traffic to the specific network interface. Example: Client connect on port 5000 - forward to eth0 on port 80 Client connect on port 5001 - forward to ...
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1answer
48 views

User transparent SSH multihop

What I have is the same as this question SSH tunnel through two servers to access a web service on port 9091 (mainly because I asked that question). But the difference now is that I'm accessing it ...
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16 views

Cluster url fails for port 8080

I have configured a clustered with 2 servers. Server1 IP: 10.200.200.20 Server2 IP: 10.200.200.21 CLUSTER_IP : 10.200.200.24 Modular Disk storage array IP: 10.200.200.22,10.200.200.23 My application ...
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15 views

Redirect Webmail traffic through port 80?

I am setting up a website on BlueHost (shared server) and I have set up webmail in a subdirectory. But every time I use the url mywebsite.com/webmail, it gets rerouted to mywebsite.com:2095 which the ...
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3answers
36 views

Port forwarding testing

In trying to check if I setup Port Forwarding correctly for my IP security camera none of the services report the port open. I can access the camera from within the LAN, but can't see it from the WAN. ...
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3answers
90 views

shut down computer while retaining LAN function

Well basically I have noticed that in hibernation mode the network card is still running (which means the router can detect that the computer is still in the network). Is there a way to do the same in ...
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0answers
27 views

Can't Port Forward. I have a modem and a router but im connected to the modem

I've tried to port forward multiple times. I am connected directly to the modem directly by Ethernet cable. I have tried using the "Virtual server" on the modem and i got a wireless adapter and tried ...
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25 views

nc and named pipes for port forwarding

I have my environment setup to listen to jetty on port 8888. However, for a limited time, I will have to also listen on 8889. I though of using named pipes and nc for that: mkinfo pipe1 /bin/nc -l ...
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20 views

Port forwarding issue while accessing local webserver from internet

I have hosted a webserver on my laptop. (XAMPP) I have installed wordpress and the website developed is working fine with http://localhost as well as http://192.168.0.150/wordpress/ (I have made the ...
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50 views

Virtualbox NAT port forwarding not working

I am trying to forward Growl messages from my virtualbox windows guest to the growl notifier instance on my windows host. Growl runs on port 23053. Here is my network configuration. But I'm not ...
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19 views

How to receive and send UDP traffic using a SSH Server with blocked UDP ports?

I have an external server which I use to connect to the internet using dynamic port forwarding from my remote desktop . I forward all the connections to my local port 9150 . Therefore I use that ...
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32 views

How To Configure Portforwarding with iptables

I have got a "Hypervisor" witch has two interfaces: eth0 Link encap:Ethernet Hardware Adresse d4:3d:7e:fc:b2:db inet Adresse:87.25.34.251 Bcast:87.25.34.255 Maske:255.255.255.192 ...