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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DD-WRT: How to allow port forwarding to apply to requests originating from inside the LAN?

With the original firmware of my router I had port forwarding defined from port 80 to the server in the LAN, which I used in conjunction with an external dynamic DNS service. I've now upgraded to DD-...
6
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1answer
10k views

What is blocking my ports?

How do I find out what is blocking my ports? I am on Windows 7 x64 and trying to run Minecraft on port 25565, which worked yesterday, but not today. I have not installed any new software. I have ...
124
votes
1answer
224k views

What is port forwarding and what is it used for?

There are a lot of questions on 'port forwarding' but there doesn't seem to be one that clearly states what it is and what it's used for. So: What is Port Forwarding? What is it used for, and why ...
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3answers
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How to use a different private port to a public port? [duplicate]

Possible Duplicate: What is port forwarding and what is it used for? HI, I would like to serve a webpage using port 80 publically but privately on my LAN it's available on port 90, now is it ...
2
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3answers
2k views

Port forwarding: If the IP is static, what happens to computers set up for dynamic IP adresses?

If I set up my router to hand out static IP adresses, as far as I know, I will have to configure my computer to use a specific IP adress. What will happen if someone don't configure their computer, ...
0
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0answers
98 views

Using SSH to get around Remote Access block [duplicate]

Possible Duplicate: How to tunnel Windows Remote Dektop through two machines I've been reading about SSH port forwarding. It sounds like I can route a service through a different port than it ...
4
votes
2answers
6k views

VirtualBox Bridged Network Port Forwarding Issue

I currently have a development environment setup on a Windows 7 PC running Ubuntu 11.04 inside of a VirtualBox on the same box. I am using the "Bridged Network" option within VirtualBox, and inside ...
9
votes
2answers
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Allowing a friend to connect over the internet to a Minecraft server I've hosted?

I have set up a Minecraft server and have built lots of things, now I want my friend to play on it too. I'm hosting it on my home computer and don't want to have to set up a new server elsewhere so ...
0
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1answer
310 views

Enable Port Forwarding for accessing server over the internet

I want to visit this page on my server http://192.168.2.53:8080/tma/majBtm/androidToDesktop Since it's a dynamic IP, the above mentioned IP address keeps changing everytime I reset my connection. I ...
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0answers
151 views

Enable Port Forwarding on UTStarcom UT300R2T

This question is a reference to VPN help for Android I want to visit this page on my server http://192.168.2.53:8080/tma/majBtm/androidToDesktop Since it's a dynamic IP, the above mentioned IP ...
3
votes
4answers
3k views

Port blocking workaround

I recently was on a visit for a few days where my primary internet access was through verizon, which I eventually discovered blocks SMTP ports. I had to improvise a workaround to send mail, but I ...
0
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1answer
2k views

Ssh: Windows host tunnel through a middle linux server to another linux host with limited ports

Addendum: I've seen question "Windows HTTP tunnel through 2 Linux hosts?" and trying to learn something about the answers. I learned. I will start giving my problem, and then talking a little about ...
2
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1answer
4k views

Cancel ssh port forward

To access restricted university web pages I often run the following command: ssh -fND port username@uni.address.here Then I open a firefox profile which I have set to go through port 5555 using a ...
4
votes
4answers
17k views

Possible to “ping” url:port? (OS X-GeekTool)

I'm trying to use GeekTool (Mac pref pane... basically just embeds output of a shell command/script on the desktop... http://lifehacker.com/#!244026/geek-to-live--monitor-your-mac-and-more-with-...
5
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1answer
2k views

SOCKS vs. SSH local port forwarding

What's the difference between using SOCKS (SSH -D) and local port forwarding (SSH -L)
3
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2answers
422 views

bittorrent upload with closed ports

I just downloaded a linux image using bittorrent. Although the port seems to be closed I noticed that my client was also uploading. As far as I know UPNP and NAT-PMP are disabled in my current network....
0
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0answers
535 views

Windows XP port forwarding to VMware machines

I have a Windows XP machine with two VMware machines running on it. The machines are running in network-bridged mode (but I can change them to NAT if needed). Windows XP machine has certain ports open ...
0
votes
1answer
3k views

How to open outbound ports in Router?

I am trying to configure this Yamaha router in our lab to open ports to access GMAIL (smtp/imap).I understood that I have to open ports 995 and 465 for this. Should I do this in "Packet Filtering" or ...
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3answers
1k views

Remote socket connection C

I wrote a simple server application in C. I managed to establish a connection using telnet. The problem is that I cannot reach the server if I specify public instead of local ip in telnet. I mean this ...
0
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1answer
1k views

Why doesn't my port forwarding work

I've got a Netcomm NB9W router and I'm trying to forward ports 7 and 9 for wake on lan. I've set up a static IP address and I've configured both these ports using the Advanced\NAT\Port Forwarding ...
0
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1answer
649 views

FTP Port opening

I've been trying to forward port 21 with no success. I have a CN router that has many options, but I have basically no idea what is what. I have already forwarded the 21 port, but when I check it ...
1
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1answer
189 views

How can I set up a port forward from my client computer's shell?

I notice that my bittorrent client is capable of automatically setting up port forwards with my router, and I want to know if I can do the same in a shell script. The reason is, that since my router ...
0
votes
1answer
452 views

Problem with port forwarding for Splashtop iPad application

I'm trying to configure my home network to work with Splashtop Remote application from my IPad. I have a home network behind a standard router and a standard modem. My computer is connected to the ...
2
votes
2answers
2k views

How can I run SSH on a port other than 22? [closed]

I have a Linux machine on my network. I connect to it using SSH with PuTTY over the Internet, so I have forwarded port 22 to the machine. Now I need to put another Linux machine on the network. I ...
0
votes
1answer
31 views

Can it be setup on the below … DNS

Current we have www.abc.com.hk --> Real-IP 10.10.10.10:80 --> PrivateIPsrv --> 193.168.13.8:80 Now I have a new Sharepoint server setup and I would like the outsider can access it using abcSP2010....
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0answers
972 views

How can I port forward with an airport extreme and a NAT enabled modem?

I run an Actiontec HD701D modem with NAT to an Airport extreme base station to laptop etc. As you might expect I get double NAT issues. I tried a lot of different things to forward a port, but no ...
0
votes
2answers
13k views

Skype Optimization - Port Forwarding on a Router

I was watching this Video which talked about using port-forwarding to optimize your LAN for skype calls. According to the video, as explained in the first couple of minutes in the video, the reason ...
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1answer
1k views

loopback error, home network

I've setup my router to forward port 80 through to my computer, so I can access it from a dyndns.org domain. The domain and the ip both seem to be totally working, externally (can access it from ...
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2answers
893 views

Manage TCP ports remotely in Windows Server 2003

I'm connecting to Windows Server 2003 and trying to set up MS SQL Server 2008. SQL Server requires port 1433 to be open, but when I click on the firewall settings, I get a message that ipnat.sys is ...
3
votes
1answer
6k views

Tunelling video stream through SSH

I have this problem. There is an udp video stream accessible only on the local network, but I need to access it outside of the network. I have Linux machine (multiple actually) with root access. ...
0
votes
2answers
872 views

Need to open port in a router for two internal PC's

I have two PC's behind a comon internet router and one service running in another network that needs to connect with both PC's through internet using a specific port. To avoid dynamic IP issues I have ...
2
votes
2answers
1k views

Windows 7 Port forwarding remote desktop issue

I have been banging my head against the wall for a long time now trying to get remote desktop working on my Win 7 machine. Here are the things I have tried: I have verified using http://www....
0
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2answers
539 views

Port forward from computer (not router management)?

Since applications can set up port forwarding rules in my home network's router, I'm assuming I can as well via a command or something of that sort, correct? Here's my dilemma: I have a Belkin ...
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1answer
6k views

UPnP port mapping client for Linux

Is there any client that can request mapping and unmapping ports via UPnP port mapping behind a NAT gateway? I had problem with PortMap. I want this mostly for testing purposes.
0
votes
1answer
957 views

port forwarding with dynamic ip address

I'm new to this stuff, but I am trying to set up an ssh server in Ubuntu. I am able to log in locally to the server, but when I am off the network, I get "port 22: Connection Refused". Having spent a ...
0
votes
1answer
744 views

Apache: Internal Port Redirecting to Public Port

So, I'm running Apache on an internal server and I port forwarded, say port 10000 from outside to port 80 internally. My router doesn't support loopback so I tried accessing it from outside my ...
2
votes
4answers
1k views

OS X - forwarding external port to local loopback address

I have an HTTP service bound to port 8000 that I want to access from another computing on the network, but I can't seem to connect using the external IP address of the machine (e.g. 192.168.0.105). I'...
4
votes
1answer
4k views

how to setup a ssh acount with no terminal but port forwarding?

I am trying to set up a new user account I can give to friends so they can SSH into my forward computer, and only allow forwarding of certain ports. I do not want my friends to have a shell, or be ...
5
votes
1answer
11k views

SSH dynamic port forwarding, “Connection refused”

I am trying to do dynamic portforwarding using openssh through a remote computer following this command: ssh -D 6789 rohan@<remote_ip> -p <remote_port> This should set up a socks ...
0
votes
2answers
3k views

Forward Ports on Parallels

I have a dev server on port 8080 on my mac, and I'm trying to access it from a clean installation of Windows 7 in parallels. Ipconfig says my VM's IP address is 10.211.55.3. I can access the mac ...
0
votes
2answers
2k views

Port Forwarding for Remote Desktop

I have two Mac notebooks at home, I have assigned them static private IPs. I have also set my router to a DynDNS address, which updates everytime my router gets a new public IP. I have enabled Screen ...
2
votes
2answers
2k views

Looking for a router-like web interface for my Debian gateway [closed]

Hey, I need a web interface program for my debian gateway which has the features of a router's one. Specifically, I must be able to easily Forward ports to various clients on the LAN or the router ...
15
votes
4answers
21k views

Howto disable SSH local port forwarding?

I have a server running Ubuntu and the OpenSSH daemon. Let's call it S1. I use this server from client machines (let's call one of them C1) to do an SSH reverse tunnel by using remote port ...
7
votes
3answers
11k views

Allowing access to localhost outside network

I have a Netbeans project running on localhost with Tomcat and MySQL, all is well. I now want to show my progress to someone in another part of the country. How do I let him access my website ...
8
votes
2answers
19k views

Are virtual servers and port forwarding the same thing?

Are virtual servers and port forwarding the same thing? I always thought so but my Dlink DIR-655 has both. The only thing I can see with port forwarding is the ability to do ranges whereas virtual ...
0
votes
2answers
593 views

Is it possible to host a website with Apache HTTP through a ZyXEL EQ-660R modem and a Netgear WGT624v3 wireless router?

Essentially, I have a spare desktop computer I'd like to turn into a web server, but my modem and wireless router are very difficult to work with. I installed Apache HTTP and successfully hosted a ...
0
votes
2answers
2k views

DIR-655 Virtual Server problems

I'm using a DIR-655 router and I have two servers on the local network. I'd like to be able to SSH into both and use one as a web server. If I use port forwarding to forward both ports 22 and 80 to ...
2
votes
2answers
1k views

Use Port Forwarding on Airport Extreme

Is there any way to use port forwarding on an Airport Extreme? I don't know the exact model but I know for a fact that it is the newest kind.
0
votes
1answer
738 views

Port Forward using Ubuntu ICS

So I have my laptop receiving a wifi signal, and its sharing the connection through its ethernet port. The ethernet port is connected to a switch, and my clients (multiple computers/xbox 360/ps2) ...
0
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1answer
437 views

Add new port forwarding entry (TCP) on iMac

I'm on an iMac, Leopard OSX, and I need to add a new port forwarding entry (TCP protocol) in the iMac itself, since I have no router/modem connected to the iMac, I have Fiber, a network cable from the ...