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

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How to use rsync with a remote remote host

I am a happy user of rsync -e ssh and use it to synchronize data between my machine and a remote host using rsync -avz -e ssh me@hostA:~/folder ~/folder And this did what I needed until now. I am ...
4
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1answer
240 views

Predicting the PID of previously started SSH command

This is the weirdest thing. In a script, I start an SSH tunnel like so: ssh -o StrictHostkeyChecking=no -fND 8080 foo@bar This starts an ssh instance that goes into the background, and script ...
4
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1answer
2k views

ssh tunneling a local display to another server

I have a GUI test stand simulation connected to some hardware that is under test. The test stand is a Sun Sparc Ultra 2 SunOs 5.7. The simulation software checks to see if your running your display on ...
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2answers
111 views

Can connecting to a SSH tunnel result in a vulnerability?

it's probably a noob question, but I haven't found a real answer yet. I bought a proxy service. In order to setup my browser I have to establish a SSH tunnel to their server. Since I do not want to ...
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2answers
5k views

SSH jumping over socks(4/5) proxy chain. Host -> socks proxy -> socks proxy -> destination

I got a great answer for my previous question about connecting from Machine A to Machine C via Socks proxy located on Machine B. Say Machine B Ip is 218.62.97.105 and it is listening on port 1080 ...
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2answers
3k views

Give an access to Internet to a server reachable by SSH but where Internet is blocked

I can use my home computer A to connect by SSH to a server B where access to the external network is blocked. In other words, all requests to Internet from B throw an error: Network is unreachable. ...
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2answers
909 views

Grant ssh access for single session

I wonder if there is a tool/modified ssh-server/ssh option which enables me to grant ssh access for a single session to a given user. What I want to avoid is creating a user account and password for ...
4
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1answer
732 views

forward all mysql traffic to a ssh tunnel

I have a local application that needs to connect to a remote mysql server at 40.40.40.40:3306 The main firewall blocks all connections but ssh, I can set up a ssh tunnel and connect to the server ...
4
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2answers
723 views

sshfs over mosh tunnel

I am using sshfs over ssh tunnel. The reason for this is because I do not have direct access to machine from which I want to mount file system. This command establishes me tunnel: ssh -o ...
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3answers
415 views

How to browse a website as if I am in USA? [closed]

I am in Taiwan right now and whenever I go to a website that I could browse in USA, it directly transfers me to the Asia site. There is no way to browse the USA version of the site, probably because ...
4
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1answer
514 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
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1answer
14k views

channel 1: open failed: administratively prohibited: open failed [duplicate]

I am trying to set up an SSH tunnel (on a Raspberry Pi) with the following command: ssh user@terbank.cs.kuleuven.be -L 5672:tabor.cs.kotnet.leuven.be:5672 -N (I should note that I can, or at least ...
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1answer
2k views

Why wget does not work via ssh tunnel? What does proxy prevent ssh-client to do?

To test things I'm trying to establish a local ssh tunnel from my laptop to a site via ssh-server, and download a page of the site (or view it in a browser). The tunnel is made like this: $ ssh -L ...
4
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1answer
3k 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 ...
4
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1answer
3k views

How to print from remote over SSH to local LAN printer?

OK, so it is fairly straight forward to to run apps from a remote server on my local X screen as though they were local apps. The question is, when trying to print, the remote app only sees printers ...
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1answer
1k 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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6answers
2k views

Common multiple SSH connections file handling issue

often I have to download a file that isn't directly accessable via the first SSH connection. For example I'm on a Windows machine and I want to access another machine that is only accessable from lan. ...
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3answers
21k views

sshd_config MaxSessions parameter

I have problem with "MaxSessions" parameter in sshd. I would like to restrict number of sessions via one ssh connection. For example for tcp forwarding. When I set MaxSessions to 0, logons are not ...
3
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2answers
3k views

autossh in /etc/inittab

I have setup ssh tunnel to be able to connect a target computer behind NAT. I have put the following into /etc/inittab on the computer: tu:2345:respawn:/usr/bin/autossh -M 20000 -f -n -N -T -R 6790:...
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2answers
6k views

How to login from remote server to my own PC?

For the experiment purpose I need to login to my own PC from the remote PCs which are under the same domain, i.e: university network. How can I do remote login in this case using SSH? As an example, ...
3
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1answer
2k views

How to make SSH tunnel as daemon?

Actually, I need a secured VPN, but configuring it was too hard for me. So I decided to use SSH tunnel. The tunnel could be established when I logged in. :( (1) How can I make a SSH tunnel without ...
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2answers
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Setup ssh tunnelling to browse using the IP of a computer inside a private network

I think my question is much easier to understand looking at the draw below. The idea is that for some reasons (such like accessing the intranet of my company, or getting access to some web pages that ...
3
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1answer
628 views

How to set up SSH on Ubuntu desktop and bind sub-domain to it for remote access outside network?

I am pretty to new to SSH and I have a question regarding access to my machine outside network. I have a Linux machine sitting in my apartment running almost all the time and connect to the network ...
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1answer
3k views

Multiple SSH chaining (tsocks, socksify, proxycommand, etc. )

http://i.stack.imgur.com/YTOvt.png Goal: you need to reach "Server B" from the Client "directly" with SSH, SCP. "Server B" is next to "Server A". E.g.: they're on the same subnet, but only "Server A"...
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1answer
725 views

X Window opened from screen

Bit of an oddish one, if I've opened an X window over SSH in a screen session will it reopen when screen is reattached? I've been able to detach and the process stays running fine, with the X window ...
3
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1answer
42 views

Cannot tunnel over ssh without command/getting shell [duplicate]

I would like using ssh tunneling options. For that purpose I use command: ssh -L 1234:localhost:5678 host however this logs me into the shell on remote host. Next I tried -f as: ssh -f -L 8999:...
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3answers
1k 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 ...
3
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2answers
981 views

SSH through router to internal file server

This is a real beginner question, I know. But I really don't seem to be able to wrap my head around the terminology to get what I want working. And since I want to do this on a router that 40-50 ...
3
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1answer
4k views

SSH via Corkscrew to a remote server not working

I am trying to SSH to a remote server from my college network (proxy). However, I am getting this error whenever I try to SSH to the host ssh_exchange_identification: Connection closed by remote host ...
3
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1answer
34 views

Fit timestamps of multiple files/folders to existing ones

I've copied a large directory to another location (through a network). I needed to preserve all the timestamps (especially ctime and mtime). However somewhere in the process I screwed things up. (I ...
3
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1answer
33 views

How do I make GPG use keys accessed over SSH?

I have my GPG keys stored on a remote server (accessible via SSH) due to some technical constraints. Is it possible to make GPG use those keys transferred over ssh, without actually copying them ...
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1answer
1k views

Establishing client VNC connection over SSH in one step (e.g., with the -via option)

How do I reduce these two commands to one? I am connecting from my client to an x11vnc server and the two commands below already work. I just wish to do it in one step: first command: ssh -fNL 5901:...
3
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1answer
3k views

How to parameterize the LocalForward option in ssh_config?

I'm starting with this fully working ssh command: $ ssh -fNL 3306:localhost:3306 coolio@database.example.com This config gets me part of the simplification I am after: Host tunnel HostName ...
3
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2answers
561 views

Trying to create tunnel to mysql through SSH

Im in a bit of a bind here. I have a client that want's me to set up his website, but he runs the server w/ SSH and CentOS 6.2 as it's OS. Now, I'm trying to add the sql server on Mysql Workbench for ...
3
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1answer
128 views

Tunneling multiple ports through a single port [duplicate]

I'd like to forward several ports from my local machine to a remote machine through SSH tunneling. However, I want this to happen across a single port. Is there a protocol or tool that can multiplex ...
3
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1answer
102 views

setting up SSH reverse tunnel [duplicate]

I have the following setup: I would like to be able to ssh or vnc from home computer to work computer. I think that I could setup some permanent ssh (reverse) tunnel to get this all going, but I am ...
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3answers
75 views

How to start two processes piggie-backed? So the first finishes when the second finishes?

I'm running a script with ssh commands to a server behind a jump-host. Each time I want to run a command on my server in the secure network, I need to ssh into the jump-host (bastion) server and run ...
3
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1answer
551 views

How do you verify if an INCOMING ssh tunnel is still up and who it belongs to?

See edit below for short version I am having issues displaying the status of the ssh tunnels on our server. Here is some relevant info: user001 = remote client's username 123.123.123.123 = ssh ...
3
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1answer
2k views

SSH local port forwarding for web traffic requires proxy configuration in browser settings?

I enabled SSH local port forwarding with a command ssh -NL 8080:whatsmyip.org:80 <remote-sshd-machine>. Now when I opened up a Firefox and navigated to http://127.0.0.1:8080, the web-page did ...
3
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2answers
733 views

Auto restart ssh session after sleep

I have an active ssh session to a remote server that it would be nice to be able to restart upon waking from sleep/hibernate (ubuntu), and seamlessly restore tunnels. The Gnome Terminal window is ...
3
votes
1answer
547 views

Tunnel AFP over SSH over Internet

I can't seem to figure out how to connect to AFP over SSH. Here is my setup: [Raspberry Pi] <---> [router] <---> (Internet) <---> [Client] I'd like to be able to connect to my home'...
3
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1answer
1k views

List ports tunnelled on OpenSSH server

Is there any way to list the tunnels that SSH clients connected to my OpenSSH server have set up? I can use e.g. lsof -i to show connections that are being actively tunnelled, but I'd like to be able ...
3
votes
1answer
1k views

Set up password-less SSH tunneling from home computer behind NAT to inside computer behind gateway

My home computer is behind an ISP-level NAT (and firewall). The target computer is work computer behind gateway. You have to log to gateway computer first via SSH (as it is the only one visible and ...
3
votes
1answer
109 views

SSH connection through SSH tunnel keeps closing

I have a PI at home that creates an SSH tunnel to my VPS with autossh so I can access it from my VPS. When I log in to my PI from my VPS the connection keeps closing (which makes it unusable). For ...
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208 views

Why can't I execute an SSH command on a remote host?

I'm accessing a remote host via a jumpbox. I can easily access the remote host if I access it via an ssh shell: ssh remoteHost Last login: Tue Feb 16 12:56:26 2016 from xx.xxx.xx.xx remoteHost:user:...
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2answers
197 views

Multi-hop socks proxy, how to?

I'm starting from a suggestion to use jvisualVM via SOCKS. However, I have a somewhat complex topology. Starting from my laptop, I have two intermediate hosts to get through to reach the machine I ...
3
votes
1answer
200 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
106 views

What is the best way to create remote tunnel?

I have 3 Linux servers: 10.0.0.0/24 - (10.0.0.10) Linux server inside my LAN. 20.0.0.0/24 - (20.0.0.10) Linux server with HTTP Apache server 50.50.50.50/32 - Server on Amazon AWS which see ...
3
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1answer
305 views

limiting a user's TCP transfer quota

I've been researching how to limit a user's monthly TCP download plus upload quotas. The total transfer limit is 1 TB / month . There are 50 users, so I wish to limit each user to a maximum of 20 GB / ...
2
votes
2answers
275 views

How can I maintain open ssh connection and use it from shell scripts?

Currently i invoke the following: $ ssh me@host.com my_cmd This is slow and not easy to automate safely. I would like to establish ssh connection once and have some script that will forward my ...