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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Weird behaviour with mysql port forwarding

I have set up MySQL port forwarding in my machine as: ssh -f -N -L :9906:localhost:3306 <ssh login> Now, if I try to connect to MySQL from my localhost as: mysql -u<user> ...
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Do hotels block certain ports? [closed]

I'm on vacation this week and I'm trying to access my home DVR camera system (Bunker Hill DVR) from the hotels I've been staying at. Unfortunately, I have not been able to access them successfully. I ...
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3answers
182 views

I'm in a pub with only port 80 and I need to SSH into something

Any public proxy ideas that I can use right away over port 80? I would presume this is a common problem. Would be nice to know if there are any sites sites or tools for solving it.
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How to keep a static network local IP for all the connected machines, and still dynamically assign all the incoming ones?

I have read the manual and could find no word on this, so I'm asking here. I have a couple Macs on a wireless network, this router model: http://homesupport.cisco.com/en-us/wireless/lbc/WRT54GL Now, ...
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4answers
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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 ...
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2answers
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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 ...
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2answers
271 views

Port forwarding doesn't work?

I set up a linux box a few days ago to host a web server (nginx). The site is ilan.duckdns.org, and I can connect to it fine using my local IP as well as the external IP. However, when I use ...
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1answer
7k views

How safe is it to open ports on your router? [closed]

I want to open some ports on my family's network, for game servers and other protocols like HTTP and FTP. My dad, however, thinks this is unsafe (for him). Is it easy for a hacker to get in to our ...
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6answers
748 views

Trying to set up at-home server but not able to set up IP forwarding

I'm having a bit of an issue trying to enable IP forwarding for my server. Hardware: Modem: Embarq 660 Series Router: DI-624 D-Link Computer: Vaio Windows Server Software: Apache, MySQL, PHP ISP: ...
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2answers
5k views

DD-WRT routers - How can I specify any/all IP address ranges?

I'm creating port forwarding rules on my DD-WRT router (shown below) and want to allow all (any) source networks access. My thought was to specify 0.0.0.0/32 but that is not working. How do I ...
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3answers
449 views

Setting up WOL for PC

My goal is to be able to wake my PC up remotely. So I did the following: 1) Running Windows 8 so turned off my firewall 2) Went into my LAN properties and enabled WOL 3) Went into BIOS and checked all ...
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864 views

Iptables port mapping from two PCs to one

We have 3 PCs, two of it are connected to internet (both of it have 2 NIC) PC1: eth0 - 1.0.0.1 (external IP) eth1 - 172.16.0.1 (internal IP) PC2: eth0 - 1.0.0.2 (external IP) eth1 - 172.16.0.2 ...
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1answer
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NAT vs Port Forwarding [duplicate]

Possible Duplicate: What is port forwarding and what is it used for? What is the difference between NAT and Port Forwarding? Are they two different names for the same thing? Could you ...
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2answers
18k views

Set Up Port-Forwarding on Netgear N300 Router

I have a Netgear N300 router that has DynDNS.org as a preset DDNS option. After setting it up it (unsurprisingly) sent traffic directly to my router. I'm essentially using this to connect remotely to ...
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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.
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4answers
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Port Forwarding: Why do my local sites on 80 work but not those on 8080?

I setup my router to forward port 80 to the PC hosting my web site. As a result, I am able to access this url (Don't bother clicking on it, it's just an example): http://my.url.com/ When i click on ...
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2answers
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Why isn't my port forwarding with mysql working on my server?

I have a mysql server running on some server in our network. Now, only connections from localhost are accepted by the server and I can't connect to it remotely. Now, I want to set up a port ...
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1answer
25 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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2answers
679 views

Port Forwarding on Router using same internal port number on different IP addresses

The objective that I'm trying to achieve is to be able to connect to two computers that are behind the router using RDP. My logic is that I should be able to connect to the router externally on 2 ...
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1answer
212 views

Is forwarding to port 9 (discard) essentially the same as blocking a port?

My router (Linksys WRT1900ac) seems to leave port 4567 open, as discussed in this question. I'd like to block that port. Unfortunately I see no easy way in the Linksys admin console to simply drop ...
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1answer
191 views

If my DSL modem leaves a port open, how vulnerable is my router?

Port scans of my old Netgear router showed that port 4567 was open. I assumed my router was to blame. Now port scans of my new Linksys router show the same open port, which makes me think my DSL modem ...
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1answer
875 views

MOSH into bastion server, SSH into internal hosts

I have ssh configured to automatically forward through the bastion host: Host bastion_host HostName bastion.example.com Host internal_host ProxyCommand ssh -q bastion_host nc -q0 ...
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1answer
65 views

Does Windows Firewall have a log?

I am trying to set my router to forward three of my ports for EchoLink. But I'm having trouble with it. I'm Using the PFPortChecker to see if the ports are open, it says they aren't, but to check my ...
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1answer
6k views

Port forwarding not working in dd-wrt

I just bought a Netgear (3700v4) wireless router to replace another one (3700v1) which failed. A friend had helped me get port forwarding working on the original one. One of the important things that ...
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1answer
2k views

Dynamic DNS on D-Link DWR-112 3G router uses a private IP address

I'm using a D-Link DWR-112 3G router to connect to the internet by using Celcom broadband plug-in. How can I do the port forwarding to my server? I already have correctly configured my DynDNS, but ...
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1answer
94 views

How to portforward a site

We have a website, and my superiors asked me to install the mail server that is packaged with Synology. As I mess around with port forwarding I was able to set the mail server and the NAS to connect ...
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3answers
406 views

Windows 2008 server and Redhat with only 1 ip address, can windows route the traffic?

I have a two home server VMs set up. Windows 2008 server on port 80 and Centos/Redhat on port 8080. Both have separate godaddy domain name A name records pointing to them. But I cant point both domain ...
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1answer
1k views

Connecting to my own network via external IP

Even though I have seen and read quite a few similar Q's I was still unable to understand what is required for me to be able to do this. I have an internal network. One of the machines is a web ...
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1answer
9k views

Change PPTP control connection's TCP port number

I have some Windows 7 clients that connect via PPTP to a CentOS server, but I would like them to use a port other than 1723 for the control connection as that port is not available. Is there some way ...
2
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1answer
3k views

VM on ESXi host - How does one make externally accessible?

I have a home server running ESXi v5.0.0 with a VM guest OS (linux) up and running. I have apache 2.x installed and serving to my machine (i.e I can access the default apache page when going to ...
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1answer
484 views

Using router public IP to access another (located in WAN) router behind NAT

I have following setup: at home I have a router up and running with public ipv4 ip at my country house I have ipv4 cam and router which is behind NAT - no public ip (public ip is too expensive) both ...
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Can't access VMware virtual machine through SSH

I have got a VMware Server 2 on a CentOS 5.6 host. I can access my virtual machines from the host machine, but I can not access it from other machines. I have configured NAT port forwarding. But ...
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1answer
3k 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 ...
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1answer
5k 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. ...
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1answer
705 views

How to forward port when using 3 routers?

I've been struggling with my home network since I moved in but finally got to some results. Here's current set-up: INTERNET -> THOMSON 585V.7 (modem/Wi-Fi router) -> wireless bridge -> LINKSYS ...
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2answers
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Intranet, no Internet after switch to static IP on OS X

I have a Linksys WRT54GS and have two machines on my network connecting wirelessly. DHCP is enabled, and is granting IP addresses in the .100-120 range. The one machine is a laptop running Ubuntu ...
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1answer
49 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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1answer
145 views

How can I correctly do port forwarding on two routers; a Wimax CPE and a D-Link DIR 803?

The first router is a Wimax CPE from BSNL. It is connected to the BSNL towers which enables me to have an Internet connection at my home. The CPE has a LAN port and no other port. But since it does ...
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1answer
275 views

Port 53281 (and now also 63356) forwarded on Asus router

I have a new Asus RT-AC68U Dual-band Wireless-AC1900 Router. Under the System Log - Port Forwarding page, I see the following: Destination Proto. Port range Redirect to Local port ALL ...
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1answer
38 views

How do I make a virtualised WAN?

I want to create a virtualised WAN. As in, I want to have a couple of VMs (VBox) on one physical host machine, that exist on separate LANs, but that can talk to each other. Do I make the VMs, set them ...
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2answers
3k views

Why my Port Forwarding rule is not working?

I'm a total noob about TCP/IP, and try to set a port forwarding rule. What I'm trying to do is this: I have multiple computers connected to my router (zyxel p-660hw-t1 v2), one of them is working ...
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1answer
1k views

Port forwarding through a client bridge

I am having a problem with port forwarding with a client bridge. My main router is a 2wire router from AT&T using their firmware. It is a Router/Modem. In my room, there is a Linksys WRT54GL ...
2
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1answer
3k views

Port forwarding with IPTABLES and VBox

I have a small problem with getting a proper configuration of iptables under Ubuntu. But before, let me describe the network configuration: I am using xDSL line terminated with modem+router+DHCP ...
2
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1answer
694 views

Hosting dynamic DNS website on Virtual Box with single open port - safe?

I am looking to host a website on my own machine at home with something like dynamic DNS purely to demonstrate it to a some friends for a few days over my ADSL connection. On my LAN are a few precious ...
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1answer
602 views

How to go around a modem's port forwarding incapabilities

This custom cable modem my ISP gave to me does not support forwarding an external port to a different internal port. (For example, I can't forward an incoming connection on port 80 to port 3389 on my ...
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2answers
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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 ...
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2answers
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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 ...
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2answers
1k views

Port forwarding

I want to set up a svn server on my computer, so it's available from anywhere. I think I set up the repository correctly, using CollabSVN. If I go to Repo-Browser with TortoiseSVN and point it to ...
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2answers
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Router behind Router--second router (and its clients) cannot be “seen” even after both routers are DMZ'd/Port forwarded

Couple of terminology I guess I should get out of the way for consistency's sake throughout the post: External Router/Modem - SMC 8014WG - External IP 173.32.144.134 - Internal IP 192.168.0.1 ...
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3answers
8k views

Port Forwarding to put my web server on The Internet

I went to http://canyouseeme.org/ to check to see what my external IP address. Regardless of what port I enter, it tells me that the port is blocked. I have a LinkSys router that basically has the ...