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

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4
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5answers
536 views

Does ssh send the password over the network?

Basically the entire question is in the headline: Does ssh send the password over the network? Presuming of course that login via username and password is used. I'm asking because if ssh doesn't send ...
1
vote
0answers
20 views

Access office URL through browser outside office

I work as a web developer in a office. I have a linux machine as a work machine. I develop code then test it on a browser. I can only access the URL that I use to test my pages inside my office. I ...
0
votes
1answer
41 views

Problems with SSH ProxyCommand [closed]

i have some problems with the ssh proxycommand. The authentication on the proxy works fine, but when i want to login to the remote-host it fails. The problem seems to be, that the proxy tries to login ...
1
vote
1answer
32 views

Using shell code for LocalForward in ssh config file

I have this configuration in my ssh config file, Host *+* ProxyCommand ssh $(echo %h | sed -e 's/+[^+]*$//;s/\([^+=]*\)=\([^+]*\)$/\2 -l \1/; s/^\([^+:]*\):\([0-9]*\)+/-p \2 \1+/') -W $(echo %h | ...
7
votes
1answer
46 views

Current SSH connection properties (cipher, auth type, timeout, etc)

After a connection is established with SSH, how we can get the current connection properties ? Is there a way to know what cipher(s) is being used ? Properties of the authentication ? Protocol ...
3
votes
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 ...
0
votes
1answer
27 views

How can I forward multiple ports in the SSH configuration with LocalForward?

I want to forward multiple ports. So far my configuration looks like this: Host myhost Hostname 123.123.123.123 IdentityFile ~/.ssh/id_myhost LocalForward 8811 localhost:8811 ...
-2
votes
1answer
27 views

How do I ssh my Mac from another server? [duplicate]

I want to ssh my iMac at home from my MacBook when I'm away, but I can't figure out how to ssh when I'm not on the same local network. I have configured my iMac to accept ssh through the "Remote login"...
0
votes
1answer
98 views

SSH Tunnel “channel x: open failed: connect failed: Connection timed out”

I've Googled and searched far and wide for some sort of "solution" to this problem; however, the best answer I got is "There's nothing that can be done." Of course, that's unsatisfying, so here goes: ...
3
votes
1answer
44 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:...
1
vote
1answer
91 views

Firefox with X11 Forwarding is not working

I cannot open firefox via ssh: I've tried with: ssh -vvv -X user@192.168.40.21 But it outputs: debug3: send packet: type 50 debug2: we sent a password packet, wait for reply debug3: receive ...
0
votes
1answer
52 views

reverse tunnel on a multi hops ssh tunnel

I'm a windows user, that needs to access his server at home using a double hop ssh tunnel. I've configured via putty, a socks tunnel on a 2 hops ssh connection using a dynamic port, based on this ...
1
vote
1answer
46 views

How to rsync files between two remotes with an explicit port and different usernames?

I want to rsync files between two remote servers. I tried to follow the next solution of @roaima: http://unix.stackexchange.com/a/183516/137526, but I need a more delicate solution, for two reasons: ...
3
votes
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 ...
2
votes
2answers
76 views

Combine Two SSH Commands

The first ssh command is done on my computer, I enter the key password, then put the second ssh command in while logged into the server. ssh -i cloudkey -L 6000:localhost:6001 admin@54.152.188.55 -p ...
0
votes
1answer
37 views

SSH - How To Make Three Computer Tunnel?

ComputerA connects though putty to Server at port 77, and there is a reverse tunnel set up from the Server at port 6666 to ComputerA at port 22. ComputerA also has a ssh server set up with a user ...
0
votes
1answer
18 views

Port tunneling via ssh. Is the traffic redirected via port 22?

I wonder, whether the whole traffic is redirected through port 22, if I create a SSH tunnel? For example if I create a tunnel to a remote pc joes-pc, will it be enough to open port 22 on joes-pc? ...
2
votes
0answers
69 views

Schedule on boot persistent reverse SSH tunnel on Mac OSX

In attempts to run a self sustaining reverse ssh tunnel I have tried installing the 'autossh' package with brew. Autossh works alone when ran through the user's prompt, but not with launchctl/launchd. ...
1
vote
1answer
46 views

Setting up port forwarding on router for reverse SSH tunnel

My home PC is behind NAT but my router has static ip address. My work PC uses 3G stick for Internet (So I guess it is like being behind NAT). I would like to create a reverse SSH-tunnel to connect to ...
0
votes
0answers
23 views

Question about SSH tunneling

Consider this scenario. I have network manager on Server (S) and a network machine (N) both in a different network."N" can only be accessed via VPN..... .My laptop (L) is in the same subnetwork of ...
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 ...
0
votes
0answers
27 views

Why the virtual interface is down when I establish a layer-3 SSH VPN using “tun” devices

I would like to establish a layer-3 SSH VPN on Ubuntu 14.04. To create a tun virtual device, I used the command ssh -f -w 0:0 root@41.33.17.26 -p 2010 true, it creates the interface 'tun0' but the ...
0
votes
0answers
38 views

Permanent proxy by sshuttle to Tunnel all the traffic

I need to set a proxy for my server. So I ran sshuttle on my server as follows:screen -dmS proxy sshuttle --dns -r alex@152.21.94.233:2020 0/0 When I log out the session, I can not login to the ...
0
votes
0answers
22 views

Reject ssh -L connection unless a corresponding ssh -R exists

Is there any way to make an SSH server reject a connection that attempts to use port forwarding unless it is directed to an existing reverse tunnel? To clarify, my intent is to only allow forwarding ...
3
votes
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 ...
1
vote
1answer
69 views

For some reason “sudo ssh -w any -o Tunnel=ethernet root@remote” creates tun devices instead of tap devices

To connect multiple tunnel endpoints to a common bridge interface, I have to create a Layer 2 tunnel over ssh. The server is Ubuntu 10.04, the client is Ubuntu 14.04. I have enabled PermitTunnel yes ...
1
vote
1answer
53 views

SSH tunnels force new tunnel and kill old session

This is the situation: I have a Linux server running Ubuntu server 14.04 to which multiple computers connect and authenticate with SSH and try to open a reverse tunnel. These computers usually do not ...
1
vote
1answer
304 views

Use HAProxy to tunnel SSH through https

I have a server with Apache webserver on it and many websites running on http (port 80) and https (port 443). I would like to use a proxy on port 443 in between Apache and the user. In this page, ...
2
votes
2answers
91 views

ssh reverse tunnel with remote ip

From a server 192.168.0.1, I'd like to reach a server 192.168.0.2 on port 80. 192.168.0.2 can reach 192.168.0.1, but 192.168.0.1 can't reach 192.168.0.2 (firewall). I have set up a reverse proxy, by ...
0
votes
2answers
81 views

tunnelling ssh through ssh

I have a situation where I have a Windows 10 virtual machine running under VirtualBox on my linux desktop. This virtual machine (and at the moment only this virtual machine) can establish a VPN ...
1
vote
1answer
40 views

Is it possible to run a thin client in virtualbox?

I have a Mac laptop for work. I would like to keep my personal stuff off of my work computer. Obviously I can just ssh to my home computer and/or tunnel X using Quartz. But this always feels clunky, ...
0
votes
0answers
20 views

ssh tunnelling with and without PuTTy

I want to perform ssh tunnelling for which I have been using PuTTy. Config is as follows: Host IP: 172.XX.XX.111 Port: 22 Tunnel setting source port: 19005 Destination: 172.XX.XX.40:1521 After ...
1
vote
0answers
62 views

Equivalent autossh command?

I am using the following command to setup an SSH tunnel to a remote server. I am using Ubuntu 15.10, and the remote server is running Ubuntu 14.04.3. ssh -N -f -L localhost:7154:localhost:7154 ...
3
votes
0answers
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:...
1
vote
3answers
40 views

Understanding, and viewing, how ports are allocated by ssh tunnels?

I was trying to figure out a small problem with connecting to vnc through an SSH tunnel today where one of the possible issues was that someone else was already tunneled to the port. Without going ...
1
vote
0answers
26 views

Can I change owner of a tunnel after creating it?

I've been trying to finagle pytun to do my bidding in creating persistent ssh tunnels, but I very much do not want these to be owned by root and unless I modify the python package myself (which as a ...
0
votes
1answer
230 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 ...
3
votes
2answers
198 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 ...
5
votes
1answer
195 views

VPN server (beachhead) without root?

How can I set up a VPN server on a host where I don't have root? I have the following constraints: On the server A, I have no root. I can only operate in my home directory. In particular, I also ...
1
vote
1answer
46 views

Confirming that a reverse ssh tunnel has been established

I have a reverse ssh tunnel established between a client and a server computer. The client connects on the server on port 22, and creates a reverse ssh tunnel on port 4030. After the client computer ...
-1
votes
4answers
180 views

Ssh into a remote server, but my organization has blocked port 22

I am using Redhat Openshift server to deploy my webapps. To access the contents of my application I have to ssh into their server. Example ssh 56555ff90abcdefbf6e000077@appname.rhcloud.com ...
0
votes
0answers
28 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 user@...
2
votes
1answer
158 views

Why doesn't FTP work through my ssh tunnel?

Computer A (assumed that ip is 44.44.44.44)can ftp the host 130.89.148.12. ftp 130.89.148.12 Connected to 130.89.148.12. 220 ftp.debian.org FTP server Name (130.89.148.12:debian8): anonymous 331 ...
0
votes
0answers
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 ...
0
votes
2answers
81 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 my....
0
votes
0answers
43 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!
2
votes
1answer
587 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 ...
0
votes
1answer
34 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 ...
1
vote
0answers
194 views

Why MS Sql port (1433) forwarding does not work over http_connect proxy?

I have a windows machine with putty, which has access to ms sql server on local network. And i have a remote Ubuntu machine on the Internet with sshd on 443 port (required to establish secured ...
1
vote
1answer
122 views

How to use SSH tunnel to connect to remote MySQL server?

I am trying to connect to remote MySQL server, which runs on CentOS 6.6 cPanel server. I am creating tunnel this way: ssh -L 3306:xxx.xxx.xxx.xxx:3306 user@xxx.xxx.xxx.xxx -p PPPPP Where xxx.xxx....