An SSH tunnel allows forwarding any traffic over the SSH protocol. This is used to secure the transmission or allow data to be exchanged where network restrictions are in place.

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Reach computer behind a NAT or Proxy

I have a home PC connected through twoway satellite modem. I cant reach from outside, so after a some research I found a solution which is reverse ssh tunneling. but I have a few question regarding ...
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954 views

ssh tunnel via specific interface

Client -ssh-> Server --> Internet Normally I initiate an ssh tunnel with: ssh -D 1337 admin@nas On the server I have two interfaces: eth1 and ppp0. Right now it uses eth1 when tunneling, but ...
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675 views

Running into errors reattaching to a GNU screen session that tunnels X over SHH

After tunneling X over an SSH connection using screen on the remote, how can I reattach the screen session from another machine and tunnel X to that other machine? I either get "cannot open display" ...
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How can I `ssh -X host` into a Windows 7 machine and have Windows apps open in Gnome?

How can I ssh -X host into a Windows 7 machine and have Windows apps open in Gnome like they would if I were ssh'ing into another Linux machine?
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4k views

Accessing IPv6 addresses through an SSH tunnel

I have a remote Arch Linux server which has IPv6 enabled (through Tunnelbroker, I am able to do ping6 ipv6.google.com successfully) and I want to know if it's possible to use PuTTY on my Windows 7 ...
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526 views

ICMP Tunnelling IP vs Tunnelling TCP?

Could someone please explain the difference between tunnelling IP data using ICMP packets and tunnelling TCP data via ICMP? Obviously I know this is going to be something relevant to the different ...
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1k views

SSH tunneling along with Tor

I've been reading about Tor and it's benefits regarding anonymity, but I've also researched its problems. If I understand correctly, when I access a website using Tor the packets are secured using 2 ...
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1answer
229 views

Limit URL's accessible over a SSH Tunnel

I have a server and I want to offer a tunnel through this server to some of my friends. But I want to limit the sites they can access using this tunnel. My plan was to create a user account without ...
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1answer
928 views

How to keep ssh connection alive?

Sometims I need to keep ssh connection alive for hour or even more. Mysql big dumps or big TAR archives, for example, may require persistent connection for a long period of time. But Iam keep ...
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SSH Reverse socks tunnel

ssh -D can make a socks port at local machine, which pass the traffic to the remote, then to other places. ssh -L port:host:hostport, listen port at local machine, pass the traffic to "host:hostport" ...
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224 views

Which SSH config option stops me from SSH'ing through a SSH tunnel?

I am trying to connect directly to a my work computer (work) which is only available via an outside server (outside). So, the network path is: home » outside » work Ideally, this should work: ...
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uTorrent and PuTTY -> How to turn the connection into an active one?

There is an active, and passive mode when we talk about torrent. Passive, is when you can't connect to the peers actively. Active is when your ports are forwarder, and others can connect to you. ...
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450 views

Multiple command prompts with one SSH connection?

I have a need to do a lot in vim on a remote server which I need to SSH into. I find that it is best if I can look at multiple documents in multiple windows on my desktop, so to do this I open two or ...
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666 views

SSH tunnel over 2 servers

I used the following command to create a tunnel from my system to server1 and from server1 to server2 to have a tunnel from my system to server2 ssh -t -t -L4450:localhost:5590 user1@server1 'ssh -L ...
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1answer
155 views

How secure SSH dynamic port forwarding?

I'm using SSH's dynamic port forwarding to host a socks proxy on localhost. I'm trying to find out if the connection between my computer and the remote server/destination is secured. Will my ISP or ...
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1answer
219 views

How do I create a service that directs traffic to an SSH tunnel?

I have the following scenario: A service listening on port 6678 on Computer C Only computer B can access computer C via ssh Computer B is accessible globally I would like to do the following: ...
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2k views

An equivalent of ssh port-tunneling for Windows servers?

my home is Linux servers where SSH can always be used to get around a slightly-too-restrictive firewall. At work however, all of the servers we deal with are Windows based. I'm needing to connect to ...
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738 views

Would it be possible to create an SSH tunnel through a mobile phone call?

I was thinking the following: A lot of phone companies give you a couple of phone numbers that you can call for free. Suppose we have 2 mobile phones: P1 = Phone 1 P2 = Phone 2 P1 have free calls ...
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1answer
2k views

How to encrypt SOCKS5 traffic?

When I use my laptop in open Wi-Fi networks I want to tunnel all my TCP/IP traffic through a SOCKS5 server running on my VPS. I'm using Windows 7 and Proxifier in order to tunnel ALL traffic through ...
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What is the most MTU efficient way of creating a network tunnel?

I am currently using SSH tunneling to connect to the internet via a remote computer using the -D ssh argument. I've recently run across a problem with this solution -- the SSH protocol decreases the ...
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2answers
2k views

Dropped ssh/X session, how to pickup where left off?

I am VPN from a Linux box to another. I log in to the other box with ssh -X. I open an X window/program in an attempt to do a software installation. The painful truth is that this software cannot be ...
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1answer
425 views

SSH tunnel connection refused

I have a remote machine (IP XX.XX.XX.XX) which runs an app written in python/cherrypy which opens a port for http connections on the loopback interface. If I login into the remote machine (using ssh) ...
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2answers
5k views

How to make remote connection (ssh tunnel) with putty/ssh?

I am trying to make a tunnel between a server and laptop with Putty. The problem is, since the laptop has no public IP adress, I have to make a reverse connection. But I really dont know how to do ...
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1k views

All client outbound SSH is being blocked … are there any workarounds?

I want to ssh out of a machine running a client to connect to an SSH remote server. The reason I need this is to port forward/tunnel and get an open connection to an application on the client. The ...
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2answers
833 views

If I route traffic through a SOCKS proxy, does the remote host do the DNS lookups?

I sometimes route my Web traffic through ssh using a SOCKS proxy. The purpose is to have all traffic be encrypted. The way I do it is to open up a terminal and run this... $ ssh -v -C -N -D 9000 ...
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scp through intermediate server

I need to copy a file from a computer I can only access via SSHing into an intermediate computer. Home -> server.com -> cluster.com I'm trying to copy from cluster.com to home. I can ssh from ...
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482 views

Squid3 to use a parent SSH SOCKS proxy?

I would like to have a local squid3 server to use the forwarded parent SOCKS port 9999, and serve local users at local server port 3128 to avoid govt censorship... I have SSH tunnel forwarding a ...
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1answer
3k views

SSH as socks proxy through multiple hosts

Can the following be achieved with SSH. There are three machines involved: A. My local machine at home B. The SSH gateway server at school C. A workstation in a lab, only reachable through B I ...
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2k views

SSH tunnel to home network, and access router web interface

I'm trying to use an ssh tunnel from a remote location to connect to my home network and access the router web interface. I have SSH access to the home network, and I can connect to the gateway ...
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126 views

Limiting users/groups to certain ports through SSH, and chroot jail if necessary

I have a private linux box (Ubuntu 10.04) which is running various applications, many of which I access remotely using local forwarding. Now I would like to provide access to a third party, however I ...
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1answer
714 views

How do I set up an SSH tunnel to connect to a proxy?

I have two machines S and C that are on a local network. The way to access Internet from any machine on the network is to use a web proxy, Squid3 is being used. So I can log in to the proxy from only ...
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65 views

Access internet through another machine [duplicate]

Possible Duplicate: How to share Internet Connection in Ubuntu I have two machines, both running Ubuntu. Both the machines are on a local network. I am behind a proxy server and am required ...
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Secure Connection from Insecure Computer

I am going to be traveling out of the country to a pretty questionable area and I would like to be able to access my online banking while I am away. If I were taking my own computer, this wouldn't be ...
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SSH connection between two behind-nat computers through third public-ip computer

I have a computer at home (home-server) that runs irssi, rtorrent etc. My ISP is blocking every traffic from outside (dumb, I know, but it's the only ISP I can have). I want to be able to log in into ...
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4k views

Use a Socks5 Proxy in Flash Player

Hello, I'm using PuTTY to create a Socks5 Proxy via SSH. It works great in firefox. But Adobe Flash Player does not seem to use it at all, how can I route my traffic to my server in Flash? I am ...
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1k views

Tunnelling from one SSH connection into another one

I have a machine called ic that I can ssh to. There is another machine, fw, that is on a completely different VLAN, and I cannot talk to it. ic is on both my VLAN and the VLAN that fw uses, and so my ...
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2k views

connecting to mysql over ssh

All the computers involved are Mac OS X 10.6.x machines. I am on computer A, and have mysql running on it, and can connect to it as A~ $ mysql -u punkish -p database and so on. I have access to ...
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How to determine the port allocated on the server for a dynamically bound openssh reverse tunnel?

When creating reverse tunnels on recent versions of OpenSSH a remote port of 0 can be given to bind any available port: -R [bind_address:]port:host:hostport ... If the port argument is ...
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3answers
202 views

anonymous browsing

I just watched a video by Eben Moglen about the increasing surveillance of our connected network devices and a lot of what he said rang true. The video can be found here if you're interested. I'm not ...
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872 views

Connection to a tunneled MySQL with PHP PDO on Mac Osx Snow Leopard

On Mac OS (snow leopard) I have a SSH tunnel so that my local 3306 port is forwarded to remote MySQL. Apps like Navicat can establish connection successfuly. But PHP's PDO can't connect and gives an ...
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321 views

Cygwin: Run SSH.exe (without cygwin.bat) with a keypair

I have a box I'm trying to create an SSH tunnel to using a keypair without a password. If I run cygwin.exe and generate a keypair without a password using ssh-keygen and put the public key on the ...
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2answers
2k views

Why is my connection via ssh tunneling much slower than other connections to a remote machine?

I rented a small Linux box with an intention to use it as a proxy for netflix etc. When I ssh and run wget my speeds are like 20Mb/s but when I connect with putty and go to speedtest I only get ...
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4answers
2k views

How to create an SSH tunnel

Ok, here is the setup. I'm outside the local network and connecting to my home network using iSSH (on iPad), so far so good, I used to redirect my home mediacenter to localhost by creating a tunnel . ...
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407 views

Does availability of outbound SSH connection means SSH tunnel possible?

At work, my company has lately gone crazy and has started blocking all the sites (Almost all, facebook, gtalk, picasa, hotmail, gmail etc etc). But, I have observed that they allow any outbound SSH ...
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1answer
191 views

What is the difference between -D and -L in SSH tunneling options?

Besides the fact that -D is a SOCKS proxy which operates through one port, is there any other differences? Specifically, would there be any differences in terms of HTTPS connections?
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SSH access to office host behind NAT router

I would like to access the ssh port of my office linux host from home. Unfortunately the host is located behind a NAT router. So, the IP address is not publicly available. There is however access to ...
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SSH tunnel for VNC not functioning

I am playing with my sexy new Ubuntu 10.04 server I am trying to tunnel x11vnc through SSH to putty. Steps I took (all from my Windows 7 client) open putty (0.60) Enter the server address under ...
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Any way to stream pandora (using desktop app) via encrypted tunnel?

So, here's the deal... I have Pandora One account, and using desktop app (which is written in Adobe Flex) to listen to my stations. Now, all is great, except streaming protocols are getting blocked at ...
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2answers
759 views

Is it possible to transfer all net traffic through ssh-tunnel

My question is simple: is it possible to transfer all net traffic through an ssh-tunnel such that a user (i.e. me) does not have to change any configuration in the programs (e.g. firefox) accessing ...
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9k views

How secure is an SSH tunnel or connection?

I have often advised people to use an SSH tunnel to secure their browsing on open WIFIs or in other insecure situations. I was recently asked by a friend how secure a SSH tunnel is after I had ...