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Questions tagged [tunneling]

384 questions
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8 answers

Encrypted Host-to-Host Tunnel on Ubuntu/Debian?

I'd like to connect two remote sites via a secure point to point tunnel. I've been using OpenVPN, but it's a little flakey and really seems to be more for connecting lots of users rather than a point to point link. Redhat seems to have some nice…
Joel K
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1 answer

Failed to connect to host with RKE

I have the following cluster.yml file: nodes: - address: 172.16.20.22 user: rke role: - controlplane - etcd - worker When executing rke up, I get the following error: INFO[0000] Building Kubernetes cluster …
AndreasKralj
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1 answer

Tuning network interface for TCP over TCP in Linux

I'm porting a legacy embedded application to Linux. This application communicates with a remote server over a TCP connection using a proprietary protocol. In addition to the application specific messages, this protocol also implements messages that…
Dushara
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4 answers

Squid traffic tunneled through VPN

So what I'm trying to do is have a Squid Proxy run on 1 machine along side a VPN connection. What I want to happen is all traffic running though the Squad Proxy would run though the VPN for its outbound. ie Desktop -> (Squid Proxy -> VPN) The goal…
NerdyNick
2
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2 answers

SSH tunneling shows no response.

I am trying to ssh tunnel into this CTF box and this is the command I am using ssh -L 2020:127.0.0.1:5901 user@196.168.88.47 and to connect to the 2020 socket I use ssh -p 2020 root@127.0.0.1 when I do that, it gives me no prompt. Just blank…
Sahil
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1 answer

VXLAN format details

Learning about VXLAN I found in a document: ...VTEP1 then adds a VXLAN header that contains the VNI to the Ethernet frame, encapsulates the frame in a Layer 3 UDP packet, and routes the packet to VTEP2 over the Layer 3 network. And then,…
glc78
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0 answers

How to use an IPv6 Edge router in an IPv4 network?

Background I have the following set-up: I use 6LOWPAN (IPv6 implementation in IEEE 802.15.4) on my sensor link that have IPv6 addresses (stateless) as aaaa::xx/64 It uses RaspberryPi (RPI) as an edge router (called 6lbr) that is both connected to…
Angs
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Why are my reverse SSH tunnels suddenly dying?

I have had persistent tunnels from all my client computers to my servers in place for about a year now. I've not updated my server or changed any configuration files--as far as I remember--for several months. Suddenly my tunnels stopped working for…
Chad Johnson
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1 answer

What is the bind address used for when forwarding a port via SSH?

I have a brief understanding of port forwarding via SSH. So let's say I have a VNC server up and running at port 5901. I pick up my laptop, go to work, then I want to connect to my server, but I want an encrypted connection, so I tunnel everything…
therealkrispet
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3 answers

Tunneling XBox network traffic

My internet access from home is only via a web proxy and a tcp-only socks 5 server. (Long story don't ask). I recently got an xbox and would like to access xbox-live. but I need to route the ip traffic. So I need to be able to route tcp and udp…
Vagnerr
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1 answer

Cannot make TCP Connection with OpenVPN Server

Client OpenVPN assigned IP: 10.8.0.2 ↓ TCP on 1194 Internet ↓ Router port-forwards 1194 to server- Public IP 104.162.67.198 ↓ Server LAN IP: 10.8.0.1 I think the above is what I am trying to do (the 10.8.0.0/24 is the assigned IP). I am…
atavel
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1 answer

GRE Tunnel in CentOS

How to create a GRE Tunnel in CentOS pointing all connections to server A for the server B? I have a public server with DDoS protection and need to use this as a firewall to filter acess to the other server. Example: users -> server A(DDoS…
Guest
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1 answer

Ip-in-Ip tunnel not working -- Packets not being decapsulated

I am trying to forward packets from HostA to HostB using ip-in-ip tunneling. While packets are reaching their destination, they are not being decapsulated by the receiving host, and thus being dropped thereafter. I feel as though I've exhausted all…
Thomas Thorogood
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1 answer

How to get the list of SSH tunnels connected with the username used?

The connection is established from Desktop(D) to Server(S) with ssh -D PORT username@Server. From the Server, the list of ssh users connected can be obtained with who, but the ssh tunnels are not listed in who or w. Also, with netstat -lnpt | grep…
randunel
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How can I bridge a VM to a remote network?

I have a system running QEMU/KVM (via libvirt). One of its VMs needs to have a presence on a subnet that is not local to the VM host. I have a Linux system on the remote subnet. Is there a way to set up some sort of tunneled bridge to cause the…
asciiphil
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