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Questions tagged [tunnel]

226 questions
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Connecting with https to a server application on GCE VM through ngrok tunnel

I am observing a strange behaviour with ngrok on a GCE VM. I fire up a 'preemptible' VM instance with static external ip, and start ngrok on it normally. I get the URL that maps incoming https request to http on localhost. I am also able to check…
Kalpit
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SSH tunnel without sshd in the middle

I have 3 machines A, B and C. I can ssh from B to A and also from B to C. B will not accept any incoming connections. There is no direct connection between A and C possible. Is there a way to ssh from A to C and from C to A reusing the ssh…
lgnom
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Tunnel Linux traffic to Windows

I have two servers. Windows and Linux. Let's say Linux has the IP 1.2.3.4 and Windows 5.6.7.8. I want all traffic to be forwarded to windows as a tunnel. If I connect with 1.2.3.4:329 I want to connect with 5.6.7.8:329. Allright Linux (ubuntu)…
DGB Productions
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How to access a virtual server on a host from remote host

Support I have a host A with ip 9.21.118.35, in this host there exists a virtual server with ip 192.168.130.11 and virtual server expose port 31666. Then I want to connect to virtual server (192.168.130.11 : 31666) from another remote host B with ip…
Joe
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Sending Traffic Back To Clients Directly From IPIP Endpoint Tunnel While Spoofing Source IP

I made a C program on Linux (Ubuntu 18.04) that forwards traffic to another server via IPIP. When the IPIP endpoint sends replies back, the program also sends back the data to the client after stripping the outer IP header. The application and IPIP…
Christian Deacon
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Netmask for point to point ip address?

In a point to point tunnel, I was able to have the same IP twice. It looks like a bug, I think that might be related to some internal representation of the netmask. It can be reproduced with the steps below. I created a tun tunnel like this: ip…
Eduardo Trápani
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VPN via middle/jump server

Here's the rough picture of what I'm trying to do: client -> |VPN| -> server A -> |VPN| -> server B -> Internet. Server A and Server B are both on public internet with public IPs, also I have root access to both servers. Client is behind firewall…
allen
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Connect two internal networks in one network

I have two servers A and B. Server A with device ens3 and address 10.1.0.171 and server B with device ens3 and address 10.1.0.253. I want to setup on server A and server B networks 10.2.0.0/24, up vm instances, and I want access from vm from server…
e42d3
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forward ipv6 allocation over a tunnel

I have a VPS with a /64 IPv6 allocation, but the /64 isn't forwarded to the main ip of the VPS, I must add extra IPs on the eth0 interface if I want to use them. What I'd like to do is to forward some of these IPs and permit a computer over an ssh…
gho
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Connect multiple corporate partner private networks

Here is a scenario: You would like to setup a private network between four companies at different cities for teams in these companies to collaborate on anti-virus software. Because of the nature of the work they want to setup a private LAN…
suleyman
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Need help configuring NAT

First of all, the router I am using is a Cisco WRVS4400N. My company runs a software which handles the MySQL database of all of their products. The software now has an e-commerce module, so I have to set up a secure tunnel from our network to the…
QuinnFTW
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how to help 2 devices share local ports behind firewall through a ssh server with ssh reverse tunnel port forwarding

A diagram of the project: It is working under Putty with its GUI configuration, but it is not working if using command line through Putty. how to replicate the GUI settings in putty with command line?
Bigs
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Why is my connection to us-south-16807.packetriot.net being forcibly closed?

I get this after running pktriot start: Error: could not establish tunnel session, check trace.log for details. Tunnel connection was severed Sep 1, 2023 @ 15:22, reconnecting (attempt #1) in 30 seconds... My trace.log: 2023/09/01 15:22:15 [ERROR]…
Kwisatz Haderach
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Route iptable traffic to ip6table

I have 2 servers, server A which users connect to using IPv4, server B which server A tunnels all traffic to server B using ipv6. The question is how to forward all ipv4's incoming traffic on server A through IPv6 tunnel to server B? In…
xtg
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How to connect to device on external network

I'm trying to find a good way to remote connect to devices for work. The devices in question require that you are on the same network and then connect to them through your browser by searching for that specific units IP address. As things are…
NickNerd
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