Questions tagged [port-forwarding]

port-forwarding on firewall or via SSH

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iptables reroute traffic from lan port 80 to wan port 80

Here is my setup Firewall Pfsense server: Wan: 198.50.205.232 (eth0) Lan: 10.2.0.41 (eth1) Centos WHM/CPanel Server Wan: 198.50.205.220 (etho) Lan: 10.2.0.23 (eth1) Considering an issue with Cpanel ...
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Can access ssh, cannot access from browser

straight to the question, i was been provided a server by our clients with ip x.x.x.x port 2215 to access it by ssh. Therefore i upload all my website to /var/www/html folder. Because i lack of ...
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PortForwarding eth0 to ppp0

I have a RaspberryPi which connects to the internet on eth0 which has static IP, I have installed Squid and I have also enabled 1694 port on my Mikrotik router to be forwarded to 3128 port on my ...
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Bypass openvpn for incoming connections

I have a PC at home which I can access over SSH (my router forwards that port). It works fine except when my PC is connected to the VPN, in which case all traffic (including response to incoming ...
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Is there a speed and performance difference between VPNs (L2TP, etc.) vs. port forwarding?

Let's say you wanted to transfer a 1 GB file from a machine at site 1 to a machine at site 2. You can either connect the two machines via a VPN (L2TP) or basic port forwarding. Which connection method ...
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Kubernetes and iptables: forward external traffic to specific nodePort

I have installed kubernetes on EC2 environment. I want redirect traffic from external port 6600 to 30000 as nodePort. I'm using iptables to do this (cmd below) but this not doing redirection. I have ...
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Limit IP connection for specific port in forward traffic

I have a server on which I have done port forwarding. This means that each user connects to the server with a dedicated port and the traffic sent by the user is directed to the remote server. I used ...
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KVM Port Forwarding Port 53 to Guest via NAT - Temporary failure in name resolution

I'm trying to forward port 53 from the host to one of my KVM virtual machine guests on the virtbr0 interface (which uses NAT). The guest VM is going to run a customized DNS server. However, after ...
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iptables udp port forwarded but ICMP UDP Port unreachable

I wish to host a game server (Zandronum Doom) on port 10666 UDP, but no one can connect to it. I have troubleshot the problem and I think it's a problem with my routing. My physical network ...
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Nftables, ssh server behind firewall. Pre/Post Routing

I want to make post- and prerouting rules to allow the following: I have an ssh server running on the internal network at port 22 that I want to make available externally on say port 2200. How would I ...
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Should Router Firewall be deactivated when forwarding ports?

I'm trying to understand how a router's firewall works when ports are forwarded. As an example, I have vlc running on an ubuntu server in a remote location. I've setup VLC to stream content from my ...
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Port forwarding to make apache website accessible from outside LAN

I am trying to make an apache website accessible from different networks. The server ion my LAN is configured to listen to :80 and I have enabled port forwarding from TCP 80 to on inbound requests. ...
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IPtables rule to allow NAT'ed devices to connect to port-forwarded services in the same network

Currently, I'm using the following IPtables setup and unable to figure out how to allow traffic from LAN to port-forwarded services available on my public IP. The situation: ens3: The public facing ...
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1answer
166 views

Server not accessible from the internet despite everything

I don't have a static ip, so it changes sometimes, meaning I have to change things like port forwarding rules for my web server and SSH, etc. However this time, despite everything, it's not accessible ...
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sshd: restrict outgoing address of forwarded connections

My vps (running Debian buster) has multiple IP addresses, both IPv4 and IPv6. They are used to bind the listening sockets of the few different services running on it - basically just web and smtp for ...
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HAProxy : SSL/TLS termination + ports forwarding

I'm writing here, because I use HAProxy as reverse-proxy with SSL/TLS termination, and I don't know how to configure it to forward HTTPS requests on specific port to the same on my HTTP backend's ...
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How to bypass the ISP router for port forwarding? [closed]

My ISP is blocking access to my router, so when I enter the default gateway IP in the address bar I got nothing. The problem is that I need port forwarding to allow global access to my server. if I ...
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A web site on IIS with a private IP address

I have two web sites on IIS that has a private IP address in a small home LAN. I want some people to have access from the outside internet. I have only one domain for both websites. The user will ...
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Linux Networking and Port-Forwarding with Virtual Machine

I have an application running on my RaspberryPi4 that sends sensor data through my Fedora32 laptop, to Ubuntu 18.04 on my VM at Gnome-Boxes. The main host is Fedora 32 laptop. The Raspberry Pi board ...
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How to achieve application communication over different networks without port forwarding

I hope my title is sufficient and that this is the right place to post this question. I am a self taught Java developer and I have an application that I am trying have it communicate to a "...
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pfSense - Port forward through site-to-site VPN

I'm trying to solve a problem on my setup, and kindly ask your help. This is the scenario. Site 1 Internet connection via 4G/LTE provider, with natted connection pfSense firewall 172.20.0.0/25 LAN ...
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Open port on technicolor router

I need to open 87 port on server router (Windows server), but unfortunately I didn't found informative documentation of how to do it. Maybe somebody here had similar case and can guide me how to open ...
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Using nftables to forward HTTP(s) traffic to VM guest without masquerade

I am currently in the process of setting secure as possible KVM based server. The VM host should be more or less invisible to the internet and only VM guests running single services should be exposed. ...
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how to port forward to specific api address?

seems i've gotten lucky and get to take over some server configuration while the upper echelon finds a replacement! yay. love being out of my depth, but upside is, i get to learn new stuff. anyhow, ...
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How Can I Use the Iptables but Not Converting the Resource IP?

I want to deflect some IP address that we access using any tools (like nmap, medusa, etc) to the another IP Address. For more details: I have 2 IP Addresses, First IP Address is 192.168.1.7 and the ...
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NFTables: is it possible to forward traffic without masquerading it?

I have a remote server (B) that forwards certain incoming traffic to another port of a different server (A, dest). With "masquerade" I only see traffic coming from the forward server (B), is ...
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Pfsense DNS port-forwarding

I've encountered a problem when port-forwarding a DNS server using PFSense. I've pf'd many services on this same firewall, only am I unable to port forward a DNS server. DIG dns using local address: ...
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Is there any way to port forward if my router's wan IP is different from my public IP?

I am not using a VPN or any proxy settings, and the WAN IP address on my router's interface and IP address when searched on Google doesn't match up. As far as I understand, my ISP is using a different ...
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Forwarding a port (ssh 22) to a server inside the network with iptables?

My network gateway has 2 nics: one with a public IP, and one serving the internal network. I would like to configure iptables to forward incoming SSH requests on the public IP to the ssh server at ...
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Port is not forwarded to correct container

There is an incoming traffic with port 1111/UDP from Server-A to Server-B and Server-B has multiple containers up and running and one of the containers (udp-listener) is listening on port 1111/udp and ...
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Can a connection between “cone NAT with port restriction” and “symmetric NAT” be established without a third-party?

Directly it's impossible, right? Using an intermediate server isn’t an option because I have a requirement that says that a solution has to exchange lots of data and also be fast. Although, creating a ...
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Firewalld: setting up port forwarding of ports 80/443 blocks internet access for client

I'm new here, I hope I'm in the right place. I'm also new to networking at this level of complexity and this might be a stupid question, so sorry in advance. For reasons, I have a nas (synology) with ...
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Outgoing port forwarding from off-line LAN

A LAN network consists of two computer with static IP addresses connected with a network hub, just a dumb repeater, no DHCP. The LAN is not connected to anything else. I need one of those computers to ...
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2 Systems on OpenVPN Tunnel. 1 Internet accessible, 1 behind NAT. How can I forward ports from internet-client to internal-client with Iptable rules?

Server1 (Public IP-172.263.23.2): Hosting OpenVPN Server at 10.8.0.1 Client1 (Public IP-None): Connected to OpenVPN Server at 10.8.0.2 I'm trying to make it so if I goto http://172.263.23.2:8652, it ...
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Ssh relay without opening ports

I have machines A and B that can access a Relay machine via ssh, but not vice versa. Can I access machine B from A via the Relay machine without opening ports except 22 as that port is the only one ...
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How can I forward ports in user-mode QEMU without conflicts?

I'm running Linux under QEMU as part of a test suite for a Python script that does some privileged operations. Running a full virtual machine is important to me, because: I do not want to require ...
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Why is port forwarding in Mikrotik RouterOS stuck at SYN_RECV?

I'd like to set up port forwarding of tcp port 8000 -> 192.168.1.16:4200 on my Mikrotik RouterOS. I've done the following: /ip firewall nat add dstnat chain=dstnat action=dst-nat to-addresses=192....
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Computer A cannot communicate with Computer B on WireGuard VPN Server network

I am trying to set up a WireGuard VPN server that is in a cascading set up. vpn.example.com:1723 -> 192.0.2.4:1723 -> 192.168.0.100:1723 -> 10.0.0.100:1723 I have it set up with a sub domain ...
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Ubuntu 18.04: Communication to server on localhost stops working after setting a port forwarding rule

I have a Ubuntu 18.04 device with two network interfaces, ethernet and USB LTE modem. There is IP camera connected directly to the ethernet port and it has address 192.168.0.90. I use the LTE ...
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How to open port in client side in windows using my own pptp vpn server on linux?

I had been setup my own pptpd server in my vultr ubuntu server and i connect on it using my client built in in windows and i success to access the internet and when i check my ip i see the vps ip ...
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Forwarding bonded connection to local network through stateful firewall - ArchLinux

I'm using Arch Linux to set up a firewall for a school which will stream each classes' video to students at home, so I need a strong and safe connection, that's why I was thinking about bonding ...
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OpenVPN does not connect outside network

We have a small office setup, currently due to pandemic employees need to work remotely therefore we are tying to configure OpenVPN so they can access internal applications. Using following tutorial I'...
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How to forward port from a remote server to a local machine behind NAT?

Scenario: Remote: CentOS 6, has public IP Remote<-->Internet Local: Win10, behind NAT Local<--->Local Router--->ISP NAT--->Internet Problem: Local wants to run a Service listening ...
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483 views

Debian 10: How can I disable nftables and continue to use IPTables only?

I just installed a new Debian 10 and realized that both nftables and iptables are active and somehow my IPTables rules get mixed up and don't work properly. How can I completely disable nftables and ...
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Reliable reverse port forwarding between windows pc (under NAT) and linux server

I have the following topology: Linux server (Ubuntu 20.04) with static ip Windows server under NAT with no option to forward port to this machine I need to access securely port of windows server ...
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Docker - how to forward requests on container port to the host port?

I have 2 services running on docker. They communicate with each other using exposed ports on the host machine. Service A listens on host port 4000 (using host: localhost) I want Service B to send ...
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206 views

Ports and Port forwarding

In port forwarding all the ports (extensions of IP’s which altogether create ’the packet’) are associated with IP addresses. When configuring PCP (Port Control Protocol) via router settings- only the ...
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Apache cannot access server with port 80 [closed]

I have apache server running on Ubuntu 16.04 and which works fine with port other than 80, I have forwarded the port 80 and try to access my server using https://mysite.ddns.net/index.html and the ...
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Connect to VMs via ssh from outside, with host under VPN

I have some QEMU/KVM machines (1,2,3) running ssh on port 22. I forward the ports to 22221, 22222, 22223 and I can connect to them using 11.22.33.44:2222X. I followed this tutorial to achieve this. 11....
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Is it possible to forward a port for one app only?

I have a Ubuntu server (18.04) which hosts some websites on Apache2, and also has a node app running. I want the node app to use SSL, but as it's not running as root it doesn't have permission to ...

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