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Questions tagged [tunneling]

384 questions
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Accessing local network from a different network using cloud server

I'm not sure if this title is correct, but I have an OpenVPN server on an AWS EC2 instance that I want to use to ssh into my local network machines when I'm on a different network. A simple method I've thought of that wouldn't really involve…
steven hurwitt
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preventing ipv6 packets from being generated when creating a gre tunnel

I have a veth device, each side of it is in a different network namespace on the same machine. I am creating a gretap tunnel over this veth. when setting the gretap device to up state I can see a lot of packets like this being generated on the…
barisdad
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Suppressing ICMP protocol 47 unreachable with userspace GRE implementation

For reasons that would require a lot of irrelevant context to explain, I'm handling GRE packets with a userspace process with a SOCK_RAW/IPPROTO_GRE socket. This is working fine, except that despite having a raw socket accepting the GRE packets, the…
R.. GitHub STOP HELPING ICE
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AnyDesk TCP tunnelling port "closed" since Windows 10 2004

I connect to my company computer via AnyDesk. I have set up a TCP tunnel from local port 11111 to remote port 22, to have an SSH connection to the remote machine. This stopped working since I installed Windows 10 2004 and WSL 2 on the client, a few…
Hey
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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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Best way to link two systems

I am trying to link two Ubuntu 20.04 servers together Server One is a cloud server with its own dedicated IP with DDoS protection and a hardware firewall. Server Two is a much higher performance server, but it is at my home with no dedicated IP. I…
Daniel
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Forwarding Home Game-Server through GRE Tunnel | Can't ping remote GRE IPs

I am having trouble routing my game-servers through GRE. I do not receive a ping from either side when pinging them. I can ping the local GRE interface; however, I cannot ping the remote GRE interface. What I am attempting to do: I have a DDoS…
planetnation
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How can I setup a dual SSH tunnel so that two machines A and B behind firewalls ssh into a central sever such that A can VNC into B?

I need to connect via VNC from my machine A to another machine belonging to my friend B. Both of us have no way to open incoming ports - ISPs do not allow tunneling unless you buy a static IP based business plan. Both are linux systems BTW We have a…
rep_movsd
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How to tunnel private adress based on etc/host record?

I have machine A (MacOS), and Server B in private network (ubuntu). In etc/host on B I have something like: 192.168.63.123 abc.abc.com 192.168.63.123 abc2.abc2.com 192.168.63.123 abc3.abc3.com I am trying to see content from 192.168.63.123…
Sebastian 506563
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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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How to create a gretap tunnel between two AWS EC2 instances?

To create a tunnel between two machines connected to the same network, I can run the following commands: From host A: sudo ip link add gretap1 type gretap local HOST_A_IP remote HOST_B_IP sudo ip link set gretap1 up From host B: sudo ip link add…
Ahmed Hussein
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how to jump in a server using putty

I am facing a situation: From my Local Machine (LM) I connect in a VPN using OpenVPN (HTZ) then I am able to use putty to connect into a HTZ server (lets call it server X). From that server X I have access to another server (lets call this Y) on…
Alessandro Melo
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Any good solution to deliver private HTTP service to public with reverse connection?

I am looking for a solution to let a private LAN HTTP service accessible from WAN with minimal configuration. For example, I have more than 1000 deployments of HTTP service across nation running in LAN. These HTTP service are not available to…
Chau Chee Yang
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set up secure connection over SSH

I'm setting up a server application which requires to establish a secure connection over SSH2, e.g. a client must open SSH2 connection to the server to reach specific application: % ssh -s -p5000 my.server.com app I want to understand, what exactly…
Mark
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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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