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

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VNC & SSH : local (win-putty) -> hop (linux) -> remote (linux)

I'm gettin a headache trying to access a remote VLC & SSH. This is the situation : Local : Win box behind NAT, dynamic IP. I want to connect from here. Hop : Linux box, static IP server Remote ...
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175 views

How can I use a Raspberry Pi as a router between two WiFi networks?

I want to RDP from PC1 (Running Windows 7), to PC2 (Running Windows 7) using Pi (Raspberry Pi running Debian). This the network situation: Network1 Network2 ...
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119 views

xtightvnc through ssh gateway — connection refused

Following setup: homepc -> gateway -> workpc workpc:~$ tightvncserver :12 homepc:~$ ssh -N gatewayuser@gateway -L 1212:workpc:5912 Now I try to connect via homepc:~$ xtightvncviewer ...
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111 views

How to get information from sshd about established remote tunnels

I have a server running on which from many different places people log on via ssh and open remote ssh-tunnels to other places behind different firewalls. Now I want to try to get an overview, which ...
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168 views

Cron job running but not establishing tunnel

I have a script which establishes a reverse tunnel on an endpoint HostB. It looks like this: cat tun.sh #!/usr/bin/env bash # Test code /usr/bin/ssh -V 1> /home/userA/bin/tun.stdout 2> ...
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66 views

ssh connection hangs when looking up a SERVFAIL domain

Scenario: I am browsing the internet through an ssh -D port-forwarding tunnel, both browsing (http, https, ...) connections and domain lookup queries are done using this SOCKS 5 local proxy. The ...
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284 views

ssh local tunnel to VM

So, can anyone explain why this doesn't work? Everything from remote host (192.168.1.3): ssh -L 9000:192.168.1.2:80 login@192.168.1.2 elinks http:127.0.0.1:9000 and I can see a web page. other ...
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642 views

IBM AIX: How do I set up SSH X forwarding on an unprivileged user with no home?

Long story short: I have an AIX server where my user is unprivileged and has no home directory, and it is not easy to fix this because OS-level management of this server is outside of my jurisdiction. ...
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341 views

Disable SSH Tunnel with KVM VNC Server

Here at work we've set up a KVM server that hosts a couple guest machines. The KVM itself is headless and we remote into whenever needed, but we would like to be able to VNC into the guests. I have ...
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474 views

Reverse tunnelling with “stunnel” in linux

Scenario: Central Log-Server(logserv)- only private IP interfaces Multiple client servers (logclient)- has public IPs. Requirement: Need to tcp logs of syslog application from various logclients ...
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248 views

SSH -L Tunnel no longer working

Local machine running my scripts needs to access a remote server's DB. Last week I could do, on the local machine ssh -f -N -T -L1081:localhost:3306 ueser@remoteserver -p2222 on the local machine: ...
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68 views

What does “bind_address” mean in SSH port forwarding?

In SSH local forwarding: -L [bind_address:]port:host:hostport Specifies that the given port on the local (client) host is to be forwarded to the given host and port on the remote side. ...
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516 views

Connect to LAN resource via ssh tunnel

I have the following problem. From machine A I connect to machine B over the internet via ssh and port forwarding. Machine B is part of my local network and has connection to machine C which acts as a ...
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2answers
47 views

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 ...
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1answer
49 views

Correct ssh config file settings to tunnel to a 3rd machine

I'm trying to tunnel to and end server via a bridge server. So far, I've been able to get it working from the command shell properly using the following command: ssh -A -t ...
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71 views

How SSH Tunneling is working

can someone explain how the following ssh tunneling is working ? ssh root@localhost -P 2222 -pw 1234 L 3300:remote_WIN_machine1:3389 this ssh command is running from Linux machine while the remote ...
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602 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 ...
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728 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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117 views

Supply additional ssh options in config file

How can I supply additional options in .ssh/config? I know that information like Host, Port, User etc. may be used in the ssh-configuration file to abbreviate ssh commands. I frequently create ...
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1answer
92 views

How to forward port after tunneling

Today I have read this question and answer (How does reverse SSH tunneling work?). I tried it out and it worked perfectly however I want to know one thing. Say I have a web server running on port 8000 ...
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1answer
34 views

Port forwarding error

I am trying to use VNC on my KVM guest, following this guide: http://blog.scottlowe.org/2013/08/21/accessing-vnc-consoles-of-kvm-guests-via-ssh/ This is the ssh command I am using from my host: ...
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202 views

How do I tunnel traffic through a VPN and then through another machine

I recently started working from home using a laptop (A) that connects to a corporate network over a VPN. The VPN end point (B) on the corporate side then has two ports, 3389 for RDP and 22 for ssh, ...
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194 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 ...
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1answer
256 views

Can I use `screen` to keep an ssh tunnel alive from the client?

I read here that you can keep your ssh sessions alive a bit longer using a utility called GNU screen. Is it possible to keep an SSH tunnel alive longer with this as well?
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506 views

Multiple SSH tunnel through raspberry pi?

In my home network I have a PC, raspberry pi, macbook and a few other devices which I want to access away from home. As it stands, I have setup VNC server on my PC along with remote desktop and have ...
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4k views

Remote desktop (KDE) over SSH reverse tunnel

I have a reverse ssh tunnel through a middleman server set up and working. I'm running Kubuntu 12.04 here and on the remote machine. I want to open a remote desktop session. Until now I've been ...
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416 views

Using ssh_alias with ssh tunneling

I am using ssh tunneling to login to system behind gateway. Problem is that I have ssh_alias defined in ~/.ssh/config on gateway server. Where I have key and ip setup. But those alias don't work ...
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287 views

How to run svn when ssh over ssh?

I need to run sudo -u wwwrun sh -c 'svn status -uq /srv/www/htdocs/loquat' over ssh. When using one ssh it works smoothly. Now there is one server that needs to be connected through another server via ...
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1answer
13 views

SSH tunnel between two Raspberry Pis to access a Webcam [closed]

I have a webcam sitting behind a 3G mobile router which is blocked for access from outside. I think the best way to gain access to this webcam would be by setting up an SSH tunnel. I was reading ...
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1answer
42 views

Unable to establish an SSH tunnel using Redis Desktop Manager

I am trying to connect to an Elasticache Redis Server via an AWS Ubuntu instance and using an ssh tunnel. When I try to configure Redis Desktop Manager to connect via an ssh tunnel and provide ...
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22 views

How to get informed about EVERY incoming ssh connection (e.g. with no remote command specified)

The case I'm used to set up automatic reverse ssh tunnels to remote computers via my server with cron. Usually I use the following entry: @reboot sleep 300 && ssh -MNf -R xxx22:host:22 ...
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19 views

Trying to make a SSH Tunel [duplicate]

I configurated a bastion server on AWS on my public subnet. I can make direct ssh to the ec2 instance inside the private subnet, using the bastion host. I can connect to the bastion host and check ...
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12 views

How work tunnel to gnome connection manager

Someone using gnome connection manager? (http://kuthulu.com/gcm/?module=home&lang=). I need setup the tunnel for connection but i don't understand how to configure, help please!
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45 views

“channel 3: open failed: administratively prohibited: open failed” when creating a VNC session on a SSH tunnel

On creating a VNC connection via tunneled SSH connection, I get an error: channel 3: open failed: administratively prohibited: open failed I have found that this happens only when I'm not logged ...
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29 views

SSH tunnel between 3 box to get internet access

The network looks like this : Server X -- My machine -- Server Y My machine has SSH access to both boxes. Server Y has internet but not server X. How can I make a tunnel so server X can acces the ...
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28 views

What kinds of IPC are used in ssh port forwarding?

SSH local forwarding is specified by: -L [bind_address:]port:host:hostport on the local host, a process called P1 attaches to port, so that P1 and the ssh client SC can communicate. What type of ...
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36 views

SSH Tunnel with key on first server

Im trying to tunnel to DestinationHost through HopHost with ssh -o ProxyCommand='ssh HopHostUser@HopHost nc -w 10 %h %p' DestinationHost First, I get to authenticate towards HopHost as HopHostUser ...
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40 views

Connect to work pc via ssh

I have a PC on my work which I want to connect to from home (on both machines Ubuntu 14.04 is installed). I already opened a port in my work firewall. Now I found an instruction to create a pseudo ssh ...
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1answer
40 views

Connecting two end-points through proxy server with SSH tunneling

I have a simple client and a HTTP server (port 80). In some cases, the client and server can exist on different locations, NAT'ed behind a firewall (allowing only outbound connections to port 80). ...
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13 views

Connect from firewalled server to git through connected client

The servers I am working on block port 22 on outgoing connections. But my local machine doesn't block port 22. I would like to reverse tunnel the server to my local machine, so that when I run git ...
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109 views

SSH connection breaks after executing commands (broken pipe)

I am connecting to a remote machine on WAN and LAN networks using SSH. After logging in with username & password I type some commands in the shell. After the 2nd or 3rd command PuTTY throws the ...
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73 views

SMTP traffic being forwarded through SSH even do AllowTcpForwarding is disabled

I have a situation on one server, where it seems to be spaming over traffic being sent over SSH tunnel. Output below shows connections being made to remote SMTP server that seem to be initiated over ...
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110 views

Accessing forwarded port via SSL/TLS

I have a Raspberry Pi that sets up an SSH tunnel with my VPS so that I can access several things remotely. My Pi forwards its local port 80 to my VPS's port 3180, so I can access it via ...
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112 views

Redirect traffic flowing into SSH server to privoxy, then to TOR

I own a Ubuntu VPS that I am using for SSH tunneling. I want the traffic to be redirected to TOR network. Some research showed that I can do it by using Privoxy, that will accept traffic from SSH ...
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1answer
58 views

What's the diference between a SSH tunnel and a VPN? [closed]

What situations do I have to use one in detriment to the other? I believe that both serves for the same situations at the most of the case, isn't?
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66 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 ...
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1answer
159 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 ...
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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 ...
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1answer
632 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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1answer
387 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 ...