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

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Tunnelling through multiple machines on Red Hat with varying users and keys

I'm trying to SSH tunnel hop to a Tomcat7 server where JMX was configured on port 9090. Essentially: localhost > hostB > hostC. In a terminal, from localhost to hostB: ssh -L ...
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185 views

Why SSH login works in shell but fails in all third parties via ssh tunnel?

I'm using ssh to log in (prompt password first time) on a remote server. In shell, using this command: ssh root@myserver.com works well! But all other db software applications that I tested ...
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34 views

Correctly closing multiple hop SSH tunnel

I want to tunnel VNC traffic to host2, which is only accessible from host1, whereas host1 is publicly accessible. I setup a multi-hop SSH tunnel as described in this question, using: ssh -L ...
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63 views

It is possible to make an IPSEC VPN Bonding?

I wanted to know if It is possible to bound two IPSEC tunnels ? I've already done a VPN bonding of SSH tunnels, but It will be better if I use IPSEC.
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173 views

ssh tunneling: connection closed by foreign host

I'm trying to create a scenario to test a simple ssh tunneling, just for using a simple telnet. I have two hosts: ubuntu and suse. Both of them have the other hostname on /etc/hosts file for address ...
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30 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 -> ...
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59 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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71 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) ...
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287 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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137 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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52 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, ...
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174 views

Run script after GDM login into GNOME?

I recently bought a laptop and wrote a script that sets up a reverse ssh tunnel if a certain user logs in through GDM. I did this because I've had a laptop stolen in the past and would like to be ...
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62 views

Forcing broswers to use a different host and port when viewing websites over ssh-tunnels

I've setup an ssh tunnel to a network that has a website I need to view. However, when requesting the page my browsers sends the host localhost and url http://localhost:1234 in the HTTP headers. Is ...
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768 views

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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134 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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92 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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74 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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120 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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1k views

Double port forwarding - SSH

NOTE: I'm not explaining why I want to do this. But here is the requirement. There are 4 hosts. Host A, Host B, Host C, Host D Host A is running some application which can be accessed at port 8001 ...
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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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203 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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469 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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299 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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412 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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3k 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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159 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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332 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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362 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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442 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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94 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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84 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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53 views

ssh login with a tunnel through intermediate server in a single command?

Is there a way in a single SSH command to login via SSH to a remote server passing through an intermediate server? In essence, I need to create a tunnel to my "bridge server" and via the tunnel to ...
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89 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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84 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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162 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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414 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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3k 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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288 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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270 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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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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27 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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23 views

Forwarding traffics come from SSH tunnel to VPN tunnel on a Linux device

I want to route network traffic that comes from one end of ssh tunnel (constructed by ssh dynamic port-forwarding) into one end of VPN tunnel. Given four linux devices A, B, C and D, for example, I ...
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32 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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45 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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46 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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39 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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71 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 ...
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426 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 ...
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70 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 ...