Port forwarding is a process consisting in the translation of a host:port couple into another host2:port2 couple, both submitted to the same network mask.

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Port fowarding and load balancer in ubuntu server 12.04

I am looking to create a load balancing server. Essentially here is what I want to do: I have a public IP address, lets say 1.1.1.1 I have a second public IP address, lets say 2.2.2.2. I have a ...
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684 views

How to forward Remote-Desktop Port across interfaces using ufw?

Machine A has two network interfaces: Network eth0: 10.10.20.0/24 Network wlan0: 192.168.1.145/24 Machine A has 192.168.1.145 as Default Gateway, and also a route to pass 172.16.0.0/16 to ...
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23 views

Raspberry Pi port fowarding redirecting to wrong local IP

I'm attempting to host a website from home using a Raspberry Pi with this tutorial. After following all of the instructions and finally testing the result by entering the NoIP address in my browser, I ...
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List ports a process PID is listening on (preferably using iproute2 tools)?

I'm looking to list all ports a PID is currently listening on. How would you recommend I get this kind of data about a process?
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1answer
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Port Forward :80 and :8080 to Two Different Servers

On a CentOS 6 server with an IP address of 172.16.1.10, how can I configure iptables to route traffic destined for 172.16.1.10:80 to 192.168.1.10:80, and traffic destined for 172.16.1.10:8080 to ...
2
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1answer
907 views

redirect web server with no-ip and port forwarding in livebox

I want my Apache web server running on a Livebox (home router appliance running Linux) to be accessible from the Internet (WAN). I installed and configured the application noip2 on my Ubuntu PC. ...
2
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1answer
2k views

forward packets from one interface to another interface using iptables

I have an embeded system with 2 interfaces e0 and m0, whose ips are 10.0.0.20 and 192.168.0.20, respectively. Incoming packets into e0 have an ip of 10.0.0.10 and should be forwarded to m0 interface ...
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1answer
44 views

What ports need to be open on a firewall to access the internet?

Let's say as the example that I have a firewall that blocks ALL ports from all sources/destinations. What ports would I need to open to be able to successfully run: ping google.com ...and are ...
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1answer
29 views

Setting up port forwarding on router for reverse SSH tunnel

My home PC is behind NAT but my router has static ip address. My work PC uses 3G stick for Internet (So I guess it is like being behind NAT). I would like to create a reverse SSH-tunnel to connect to ...
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1answer
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CentOS with AutoSSH, Port Forwarding Clarification

I'm using autossh and set it up like shown in the following example: http://surniaulula.com/2012/12/10/autossh-startup-script-for-multiple-tunnels/ I found it works really well, but need some ...
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Question about SSH tunneling

Consider this scenario. I have network manager on Server (S) and a network machine (N) both in a different network."N" can only be accessed via VPN..... .My laptop (L) is in the same subnetwork of ...
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1answer
22 views

lxc container <-> external internet, what I missed?

I have Ethernet on my machine (enp0s10) that connected to real network, and I have lxcbr0 Ethernet bridge which gather lxc containers. And I want to make available one of lxc containers. So I wrote: ...
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1answer
51 views

Redirect secondary network interface traffic along with port forwarding to tun0 (OpenVPN) using iptables

I have a NAS server which I should do port forwarding for it in order to make its services accessible from internet. However my ISP is blocking ports, so I've managed to buy myself a cheap Ubuntu VPS ...
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2answers
38 views

Trying to run rsync between two remote servers via reverse port forwarding with ssh key

I'm trying to run an rsync between two servers. I'm basing things off of this post: How to rsync files between two remotes? What I find missing is how to facilitate the rsync (via ssh) when a key ...
4
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1answer
143 views

port forwarding to application in network namespace with vpn

I was able to set up a network namespace, establish a tunnel with openvpn and start an application that uses this tunnel inside the namespace. So far so good, but this application can be accessed via ...
3
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1answer
68 views

Tunneling multiple ports through a single port [duplicate]

I'd like to forward several ports from my local machine to a remote machine through SSH tunneling. However, I want this to happen across a single port. Is there a protocol or tool that can multiplex ...
0
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0answers
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Can I use UFW to replace the job of a router to route port connections to my applications?

I was on AT&T and had a router and always had to setup port forwarding for a few applications, like Qbittorrent etc. Not tht im on Time Warner Cable all I have is a modem and a switch and im ...
73
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18answers
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SSH tunneling error: “channel 1: open failed: administratively prohibited: open failed”

When I open this ssh tunnel: ssh -nXNT -p 22 localhost -L 0.0.0.0:8984:remote:8983 I get this error when trying to access the HTTP server running on localhost:8984: channel 1: open failed: ...
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0answers
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Iptables Port Forwarding is not working for Host Only Network. What am I doing wrong?

Host OS Ubuntu with live(public) IP address 1.2.3.4 . And a Ubuntu VM running in Virtual Box with Host Only and NAT network configuration. Configuration of both network cards are according to this ...
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2answers
34 views

How to find out the service name, that is required for a SRV record?

Im pretty new to Linux so here is my question: Is there any command or any other way (exept googling) to find out the service name that is required for a SRV record (port forwarding? I am using a ...
0
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1answer
51 views

Forward ALL incoming HTTP requests to one of two servers based on subdomain?

I have two Debian Jessie servers. One is my home server that I use for personal/hobby stuff, the other is my development server for work. For arguments sake lets say... Personal: 1.1.1.1 ...
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Cannot connect via ssh to server with global IP address

I have the no-ip service running on my raspberry pi, it updates the DNS (no-ip) whenever there is a change to it's IP address. I have enabled port forwarding on my router (Asus rt-n66u) ports 22 ...
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1answer
42 views

SHH Tunneling only accepted on some ports

I'm working with Server running Ubuntu Server 14.04. I use Plink to request some reverse tunnels from a remote computer to the server. For some ports that works just fine, but for most ports it seems ...
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BeEf Famework Kali-2 configuration

I am running Kali-2(rolling 1 latest) in Vmware workstation 12. I have forwarded my ports and am using NAT. The beef framework links only seem to work within the local network. Any specific reason? ...
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How can I temporarily map a remote host and port to a local port?

Say I have a machine A acting as a router with two NICs and the following IP addresses: eth0: 192.168.1.1 (LAN) eth1: 10.0.0.1 (WAN) And I have another machine B on IP address 10.0.0.2 that I want ...
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2answers
52 views

How do I use a SSH tunnel as a alternative to port forwarding?

I want to use SSH as a alternative to port forwarding to use my RDP server from the outside as my ISP's router does not allow port forwarding. Here's what I have in mind: A - client connecting to the ...
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3answers
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ssh port forward to access my home machine from anywhere

http://serverfault.com/questions/303937/how-to-make-freebsd-box-accessible-from-internet I want to understand this whole process of port forwarding. I read so many things but failing to understand ...
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1answer
28 views

I'm setting up an IRCd on My VPS. How do I open up the normal IRC ports?

As the title states, I'm trying to get my IRCd running on my VPS. I have everything set up and ready, but I cannot connect. Did a portscan, and the prot isn't open. I have root access. How do I ...
2
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2answers
176 views

Cannot connect to localhost on port 4430

I am running vagrant from a virtual box with CentOS and Nginx installed. I've created a reverse tunnel from the vagrant box to a remote server but when I am trying to connect to my localhost on port ...
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0answers
31 views

Connect to a pc which is in external network using ssh [duplicate]

I want to connect a PC which is in an local network with IP 10.1.10.25 while the IP address of router is 68.10.25.24 This PC is far away from me. How can I connect to that PC from my terminal using ...
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3answers
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SSH tunnelling with multiple dynamic port forwardings

I am trying to monitor multiple JVMs running on different servers through an ssh tunnel. Thanks to one of the UNIX gurus here, I have managed to get this running for a single server by: Run jstatd ...
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4answers
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Ssh into a remote server, but my organization has blocked port 22

I am using Redhat Openshift server to deploy my webapps. To access the contents of my application I have to ssh into their server. Example ssh 56555ff90abcdefbf6e000077@appname.rhcloud.com ...
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0answers
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How to properly port forwarding between different machines using UFW / iptables and DD-Wrt?

This is my network I want to see my ip_camera (192.168.3.4:80) from outside my house. It is on dd-wrt router (192.168.3.1) without internet. The router 192.168.1.1 has internet. However, i have a ...
0
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1answer
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ufw: how to forward single port to another port on different interface

I have two interfaces eth0 (192.168.1.2) and eth1 (192.168.3.2). I receive data from 8080 at eth0. I want to forward it to eth1 port 80. I'm using UFW, because i don't understand iptables and how to ...
0
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1answer
143 views

“channel 3: open failed: administratively prohibited: open failed” when creating a VNC session on a SSH tunnel

On creating a VNC connection via tunneled SSH connection, I get an error: channel 3: open failed: administratively prohibited: open failed I have found that this happens only when I'm not logged ...
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0answers
135 views

Why MS Sql port (1433) forwarding does not work over http_connect proxy?

I have a windows machine with putty, which has access to ms sql server on local network. And i have a remote Ubuntu machine on the Internet with sshd on 443 port (required to establish secured ...
0
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1answer
73 views

SSH local port forwarding

I am experimenting a bit with ssh port forwarding and I stumbled upon a confusing thing. It seems to me that the following commands are doing the same thing: ssh -NfL ...
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0answers
154 views

Iptables proxy, redirect all connections from a certain port to the internet?

I have an ubuntu pc and an android phone conneted to my router through a cable and wi-fi respectively. I set the android phone to use a proxy my-wan-ip:5555 and enabled port forwarding on my router on ...
0
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1answer
114 views

Use LAN printer over the Internet

I would like to be able to connect my laptop to my network printer while I am not at home, what would be a good way to forward the printer and to configure CUPS on my laptop?
0
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1answer
42 views

iptables selectable tunnel

I have this configuration script: I OPENVPN TUNNELS openvpn --config serverx.ovpn > /dev/null 2>&1 & openvpn --config servery.ovpn > /dev/null 2>&1 & TEST ON MY ...
0
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1answer
46 views

Port forwarding error

I am trying to use VNC on my KVM guest, following this guide: http://blog.scottlowe.org/2013/08/21/accessing-vnc-consoles-of-kvm-guests-via-ssh/ This is the ssh command I am using from my host: ...
0
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1answer
195 views

How to remove port number from url?

My application "XY" running on port 1234 in tomcat server. I'm using HA-Proxy for loadbalancing. So in loadbalancing my front end port is 5678 to access the "XY" application through browser. Right ...
0
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1answer
79 views

Access fron outside browser to shellinabox site

Server : 192.168.40.23 `# vi /etc/sysconfig/shellinaboxd` # TCP port that shellinboxd's webserver listens on PORT=6175 # specify the IP address of a destination SSH server ...
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Cannot telnet to Postgresql Forwarded Port

I'm trying to portforward a PostgreSQL port using my DLINK ADSL Router. I have the following IP addresses. Public Internet IP 197.321.321.32 PostgreSQL 192.123.123.12:5432 (Port To ...
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1answer
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PostgreSQL Remote Connection debugging

I'm having issues connecting to my PostgreSQL database from an online source. PostgreSQL seems to be setup up fine it is running on it's default port 5432 and the postgresql.conf has the following ...
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2answers
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How can I reach an open & listening port on Linux?

After forwarding the port I wish to open, I cannot seem to connect or get any data to this port. The PHP CLI software I have written is listening to the port actively on Ubuntu 14.04. Part of the code ...
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Unable to ssh in to machine behind router

I'm trying to ssh into a desktop which is behind a router from a remote location. I've set the router (TP-link AC1750) to forward TCP connections to port 8000 along to port 8000 on my desktop using ...
0
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1answer
146 views

UDP Port Fowarding: channel 2: open failed: connect failed: Connection refused

My situation is as follows: I have currently trying to have a program between two Hosts send UDP packets over a SSH Tunnel. There is also a host intermediate between the two hosts. Note Server01 ...
0
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1answer
73 views

Is port forwarding always used in proxy server, gateway and tunneling?

It seems to me that proxy server, gateway and tunneling all forward traffic that they receive to the actual destinations. So is port forwarding always used in proxy server, gateway and tunneling, or ...
4
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1answer
573 views

What does port forwarding mean in “SSH port forwarding”?

Wikipedia says In computer networking, port forwarding or port mapping is an application of network address translation (NAT) that redirects a communication request from one address and port ...