An SSH tunnel provides an encrypted channel based on the SSH protocol.

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17 views

SSH Tunneling does it multiplex?

I'm writing an application which will be doing something similar to SSH tunnelling (port forwarding and reverse port forwarding). However, SSH will not be involved at all, hence why I'm not using any ...
5
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2answers
153 views

ssh tunnelling explanation

I have a question regarding ssh tunneling. I've read this article http://www.popcornfarmer.com/2009/01/ssh-tunneling-tutorial/ I would like to make X forwarding work and run some X applications ...
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0answers
25 views

Mounting nfs4 partition over ssh tunel

I am following this manual on how to mount an nfs port over an ssh tunnel: https://blogs.oracle.com/shepler/entry/tunneling_nfs_traffic_via_ssh I need this because I want to mount an nfs partition ...
2
votes
1answer
530 views

Directx application using wine over ssh -x

I'm trying to run a Windows app (Artemis video game - server mode) on my archlinux server. As it is an windows application I have to run it using Wine. As I'd like to be able to launch the server ...
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2answers
54 views

How do I prevent just 'exit' from being saved when I close an SSH connection?

When searching for a way to do this on Google, all I can find are ways to quit the session without saving history (like kill -9 $$), but I have the opposite problem. I want to save all of my history, ...
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0answers
27 views

SSH Session Hangs - Custom Way of Checking It

So, the hanging of the session is not the issue by itself - I am aware of it, I know its root cause. I am interested in a rather custom solution for checking if the session hangs. I am inspired by ...
2
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4answers
2k views

Is there a way to have regular expression in ~/.ssh/config

I have two set of server. Test on production. All server have internal ip. currently I am using alias to login: Host pro-10 Hostname 192.168.1.10 ProxyCommand ssh production-server nc %h %p For ...
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0answers
29 views

Appearing to be on the same network

I have a user that needs to connect to a machine located on a private network at another facility. Basically 192.168.0.20 -> 192.168.0.1 -> Internet -> 192.168.1.1 -> 192.168.2.1 -> ...
2
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2answers
437 views

How do I route a spare network interface through an SSH tunnel?

I just bought a Raspberry Pi and I am wanting to route an ad hoc wireless network interface fully through an SSH tunnel that was created using another wireless interface. I want to do this so that I ...
2
votes
1answer
58 views

Port forwarding for VPN connection

I'm using a public wifi hotspot. Usually when I connect to these, I immediately connect to my college VPN. On this hotspot, only browsing works (no program other than a browser seems to be able to ...
1
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1answer
46 views

Automating setup of the SSH tunnel

I need to frequently login to many machines but I can only login to them from a proxy machine or using an SSH tunnel (by tunneling through that proxy machine). The problem is that I cannot use ...
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0answers
61 views

Setup SSH tunnel on existing connection from script

I want to establish an SSH tunnel on an existing connection. The tricky part is doing it from a script (a custom shell I need to allow users only some specific things, like setting up this tunnel). ...
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1answer
24 views

How can I configure Linux to reopen my SSH tunnels after the connection has been restored?

I am currently working with some SSH tunnels configured. Many times when I loose connection to the Internet or hibernate my laptop, I need to reconfigure the tunnels (i.e., do killall ssh and then set ...
3
votes
1answer
70 views

SSH Tunnel with autossh

I can't seem to find a close enough example but here it goes. I'm trying to in the end setup rsync from one server to another through an ssh tunnel. Local (my machine) will run the rsync to pull ...
3
votes
1answer
326 views

x11 connection established but magic-cookie value different?

From my local machine I ssh to a remote server along with authentication regarding X display. I know that in this process, MIT-MAGIC-COOKIES are used and the value in both server and client needs to ...
0
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1answer
149 views

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 ...
1
vote
1answer
43 views

killing tunnels for a user connected with ssh -N

I created a forward only ssh connection with the following: ssh -i id_rsa -o TCPKeepAlive=yes -o ServerAliveInterval=10 \ -N -n -R 127.0.0.12:8888:127.0.0.12:8888 fwduser@192.168.1.201 Mow, ...
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0answers
36 views

UDP Tunnel via SSH Confusion

Overview: I have a software program which communities on UDP port 1046 and I am hoping to hook two computers together. Laptop (Required to ALWAYS have VPN connection) Desktop (Public ip address) ...
0
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1answer
41 views

One liner to ssh into a server, specifying an intermediary to tunnel through [duplicate]

At my company, In order to SSH into anything, I first have to SSH into an intermediary server like so: (me@local.machine) ssh intermediary.server.com (me@intermediary.server.com) ssh ...
2
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1answer
83 views

SSH fork kills connection

I am using a linux script which has the task of forwarding control of the system to remote support. In this script one of the commands is a ssh port forward command that will forward the port of the ...
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0answers
89 views

How to create reverse dynamic ssh port forwarding

I'm trying to set up an ssh tunnel layout where: client A (not ssh-server enabled) initiates ssh connection to server S socks server is opened on server S:yyyy that tunnels all data via client A ...
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0answers
10 views

SSH tunneling error: “channel 1016:: open failed: administratively prohibited: open failed” [duplicate]

when I use config file in the /home/username/.ssh/config to connect to localhost with ssh, I get the following results: channel 1016: open failed: administratively prohibited: open failed channel ...
0
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1answer
82 views

Logging in through ssh tunnel with rsa key still giving password prompt

I have two laptops (Host A and Host C) with dynamic IP addresses and one desktop (Host B), all of which are running (Ubuntu) Linux. Right now I have things set up so I can access Host A from Host C as ...
0
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1answer
34 views

Hop scp and sshfs using ssh tunnels

Here's what I have: A desktop and a laptop both behind a firewall, both of which can connect to an ssh capable server. Here's what I can do: Create a tunnel from server to desktop by running this ...
0
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1answer
126 views

How can I use SSH to tunnel Minecraft clients to my MineOS server?

I have a MineOS Turnkey server running on my university's network and its locked behind their firewall. I have been able to connect to their Linux servers using SSH and then SSH to my server from ...
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4answers
2k views

SSH tunnel hanging

I'm trying to use an SSH tunnel from home to a computer in the university so I can access some articles. Both machines are running Ubuntu 11.04, the university machine runs openssh-server. I my ...
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0answers
67 views

SSHD_CONFIG keeps corrupting on reverse SSH setup

I have a reverse SSH setup to traverse an impenetrable CGN NAT. It works well, but the SSHD daemon on the client behind the NAT keeps dieing for unknown reasons (fails to start-up). The client ...
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votes
1answer
38 views

ssh tunel how to?

ok I have a following situation. machine1 , machine2 and laptop. I need ssh and scp protocol enabled such that I can access to machine1 and do some things there. also i cannot access to machine2 ...
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2answers
54 views

SSH Tunneling Through a Firewall to a Cluster

I work at a university but I often work remotely. There is a cluster computer at the university that I need to be able to interact with, but its behind a firewall. Let's call the firewall F and the ...
1
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1answer
41 views

Using SSH to allow Internet access

I have two hosts running on separate networks; A win7 machine and a Linux machine. Firewalls on the win7 subnet does not allow access to Internet resources, but it allows access to the Linux machine, ...
2
votes
1answer
32 views

Programatically / dynamically adjust SSH session port forwards

I have a workflow where I am trying to do the following: For a given existing SSH session, access the remote machinne and perform a process from which a port is returned (e.g. a remote daemon has ...
0
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0answers
61 views

tunnel 6to4 via ssh

Need Help regarding below setup. Before starting let me give you short idea about infrastructure and topology and the problem which we are trying to resolve We have 4 Machine i.e. A, B, C and D with ...
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1answer
1k views

SSH tunneling fails with “administratively prohibited: open failed” [duplicate]

I am trying to connect to internet via a server in local network. I don't have permissions to change server configuration. I want to do a ssh tunnel to that server and via that using socks proxy, I ...
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0answers
137 views

ssh: remote port forwarding failed for listen port <privileged>, although root

ssh root@host -R 135:other:135 Warning: remote port forwarding failed for listen port 135 Why? I'm root, nobody's listening on that port, subsequent -L 135:... works: ssh root@host -R ...
2
votes
3answers
119 views

Copying a file using SSH over a tunnel with cert forwarding

I need to find a way to copy files from mymachine to a server priv-server sitting on a private NATted network via a server pub-server with a public IP. The behind-NAT machine priv-server only has ...
2
votes
2answers
133 views

run a local SOCKS proxy tunneled through SSH

I was going through this post and couldn't quiet follow what is being implied there. A great "feature" I use every day at work: The ability to have SSH listen on port 443 so I can create a ...
2
votes
1answer
219 views

SSH over corkscrew and proxy get “ssh_exchange_identification” error

until few days ago I was able to connect to my remote ssh server, using corkscrew to tunnel the connection through the corporate proxy, with this simple configuration: ssh -v root@xxx.xxx.xxx.xxx -p ...
2
votes
1answer
336 views

Run SSH SOCKS5 proxy on system startup

I want to setup a linux server (Ubuntu Server 14.04 in this case) to be used as a SOCKS5 proxy by software on another client. Now this is pretty easy by running ssh -f -N -D 0.0.0.0:1080 localhost as ...
7
votes
2answers
364 views

Determine dynamically allocated port for OpenSSH RemoteForward

Question (TL;DR) When assigning ports dynamically for remote forwarding (a.k.a. -R option), how can a script on the remote machine (for instance sourced from .bashrc) determine which ports were ...
3
votes
3answers
2k views

How to bring back SSH session that was started with the -f option (run in background)

I'm pretty lost on this. From the man page: -f Requests ssh to go to background just before command execution. After starting SSH with the -f option, I have a working tunnel. But after I ...
0
votes
1answer
143 views

Specifying a random monitoring port with autossh

I have many reverse ssh tunnels and because monitoring ports can't be reused, I am trying to find a free random port for monitoring. Meanwhile I specified -M 0 and the forwards work great and in ...
0
votes
1answer
232 views

Remote Xfce session in a separate console?

I have the following setups: A netbook with Xubuntu 14.04 and desktop PC with Debian 7. I can connect from netbook to desktop through SSH. I want to start a separate X server on netbook and host on ...
0
votes
1answer
290 views

How does a cisco device know if I'm connecting via telnet or ssh?

I'm experiencing strange behavior with a Cisco UC520 router. When I am directly connected to the router and telnet to it using this: telnet 192.168.1.1 23 Then I get a successful login prompt: ...
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2answers
85 views

SSH into multiple remote machines through ssh tunnel [duplicate]

I am new to ssh-tunneling. Basically I want to be able to get ssh access to servers in a remote lab (say subnet 1.2.3.X). I can log into a machine that is visible say 11.22.33.44 I want to be able ...
1
vote
1answer
80 views

Reverse ssh tunnel in config

How can I establish a reverse ssh tunnel with my ./ssh/config file? I'm trying to reproduce this command ssh -R 55555:localhost:22 user@host in my .ssh/config file so that when I type ssh host ...
6
votes
1answer
267 views

Work around two-factor SSH auth with Master connection and port forwarding?

The problem 1.0 I'm working on a server that only supports two-factor auth (keypair auth is disabled). So every time my SFTP client wants to upload a file, it asks me for a token... after 3 minutes ...
2
votes
1answer
162 views

Creating an SSH tunnel from a linux VPS to a web server database

I'm creating a server application that clients will connect to. The server application is running on an Ubuntu Server 14.04.1 VPS. The server needs to be able to connect to a MySQL database hosted on ...
4
votes
1answer
127 views

Tunnel HTTP traffic over ssh

Here's my setup. I have a private network with one public IPv4 address. On this private network, I have two servers, 192.168.1.10 and 192.168.1.20. .10 is my ssh bastion host. I have set up port ...
4
votes
2answers
2k views

Tunnel yum traffic through another server via ssh

I am running a Fedora desktop behind a corporate proxy that is blocking yum traffic (specifically *.gz and *.bz2). I have access to a separate RedHat machine via ssh which can download anything it ...
16
votes
4answers
7k views

Can I pipe /dev/video over ssh

I have two computers, a desktop in my office ( with a webcam attached ) and a laptop somewhere else on the network. Usually I take a look at my office through my webcam by running ssh Office -Y ...