SSH (Secure SHell) is a protocol for running commands on a remote computer.

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osx server, windows client, running emacs opens it on server not client

I've installed emacsformacosx on my OSX box. I'd like to shove my macmini in a data center and run it headless. I've gotten x-windows working. If I run xeyes, it displays on my Windows 7 client. ...
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2answers
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SSH connection establishment too slow [duplicate]

I'm having issues while connecting to my Local Centos 6.3 VM with 500 MB ram. Below is the output of ssh -vvv localhost connection: OpenSSH_6.3, OpenSSL 1.0.1e 11 Feb 2013 debug1: Reading ...
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2answers
311 views

one IP several guests same port 22

I use Nginx to redirect my domains coming on port 80 to the correct virtual machines, now I'm wondering if I can do this with ssh on port 22. Redirect all ssh traffic to the correct guests through ...
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2answers
2k views

ssh + nohup does not work

I'm trying to run a program over SSH that keeps running when I disconnect. This Stack Overflow answer gave me the following command: nohup sleep 30 > foo.out 2> foo.err < /dev/null & ...
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1answer
61 views

SSH Key Permissions Chmod settings?

I need to use SSH on my machine to access my website and its databases (setting up a symbolic link- but I digress). Following problem: I enter the command: ssh-keygen -t dsa To generate ...
0
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1answer
48 views

Automatically initiate an outbound SSH connection on a server when a client connects

How can I automatically initiate an outbound SSH connection on a server when an internal client connects to that server on a specific port, for any given service, from a given IP range? Note that the ...
0
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1answer
468 views

How do you keep the password hidden when invoked during the su command?

This is the first time it has happened to me where I am using the su command and it actually displays the password on the terminal and doesn't stay hidden. Here is my code snippet: sshpass -p ...
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1answer
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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2answers
285 views

Autentification on SSH connection in OneLine [duplicate]

Possible Duplicate: Shell Script for logging into a ssh server I need to connect via SSH to a remote server, however I must do this with out interactive mode and with out use Public keys ...
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2answers
318 views

2 consecutive ssh logins [duplicate]

Possible Duplicate: Common multiple SSH connections file handling issue I used to do something like that often: home $> ssh user@server1 user@server1's password: server1 $> ssh ...
173
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4answers
603k views

How to copy files from one machine to another using ssh [duplicate]

I'm using Linux (centos) machine, I already connected to the other system using ssh. Now my question is how can I copy files from one system to another system? Suppose, in my environment, I have two ...
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5answers
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How to force ssh client to use only password auth?

If I use pubkey auth from e.g.: an Ubuntu 11.04 how can I set the ssh client to use only password auth to a server? (just needed because of testing passwords on a server, where I default log in with ...
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1answer
5k views

redirect sound (microphone) via ssh, how to telephone via ssh?

How can I redirect the microphone of one computer to listen to it on another computer via ssh? Which is the right device or which is the right command line? Some years ago it was easy and fun to ...
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5answers
55k views

scp without replacing existing files in the destination

How do I copy an entire directory into a directory of the same name without replacing the content in the destination directory? (instead, I would like to add to the contents of the destination folder) ...
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3answers
21k views

Multiple similar entries in ssh config

Say I want to configure my ssh options for 30 servers with the same setup in my .ssh config file: host XXX HostName XXX.YYY.com User my_username Compression yes Ciphers ...
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3answers
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What are the pros/cons of the various methods to block brute force SSH attacks?

There are a number of different packages out there to shut out IPs from which brute-force SSH attacks are launched on your system. For example: DenyHosts Sshguard fail2ban What are the pros/cons ...
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6answers
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How can I page up or down in tmux with Terminal.app?

When I am in tmux only a portion of the text shows up. If I try to scroll up or down the console scrolls up but not the actual text. If I do CTRL+b followed by [, I see in the status bar *tmux, and If ...
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4answers
11k views

Can mouse wheel scrolling work in a Screen session?

Is there any way to use the mouse wheel to scroll through the output of a screen session? I can use the keypad scroll through previous output in screen after pressing ctrl+a [. Is it possible to do ...
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3answers
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How to enable autocompletion for remote paths when using scp?

I remote copied a file to my laptop using: scp someFile USER@192.168.178.32:/home/USER/put/it/some/where/oh/damn/you/here I want to be able to autocomplete the remote path by hitting tab.
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9answers
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ssh_exchange_identification: read: Connection reset by peer

I am on OS X trying to ssh into a ubuntu 12.04 server. I was able to SSH in -- until abruptly stuff stopped working. I've read online to use the -v to debug this. Output is shown below. If I ssh into ...
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7answers
41k views

How to download a file through an SSH server?

I have a server in USA (Linux box B), and my home PC (Linux box A), and I need download a file from website C, The issue is, it is very slow to download a file direct from A, so I need download the ...
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4answers
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Keeping a process running after putty or terminal has been closed [duplicate]

I'm running a node.js server off of a raspbian (Debian) machine, and I'd like to start and stop the server remotely. This for me means using putty to access the shell, except when I close out of the ...
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2answers
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SSH key-based authentication: known_hosts vs authorized_keys

I read about setting up ssh keys in Linux and have some questions. Correct me if I'm wrong… Let's say host tr-lgto wants to connect to host tr-mdm using ssh. If we want to be sure that it's the real ...
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3answers
51k views

How to ensure SSH port is only open to a specific IP address?

This is my /etc/sysconfig/iptables: It has two ports open 80 apache and 22 for ssh. # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. ...
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2answers
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How does SSH connection survive a network restart?

From a Linux SSH shell, type /etc/init.d/network restart to restart the network service. I expect my SSH connection to die since the network service goes down. But it doesn't. Very cool. But how does ...
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3answers
2k views

How to prevent shutdown when an SSH user is logged in?

I'm administrating a networked environment and I had an interesting situation arise yesterday. When a host is required to shutdown by a regular user, it refuses to do so if other users are logged in ...
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2answers
1k views

Understanding SSH tunnels

I have linux (Ubuntu) server which I have root access to through ssh (port 22) only. On that server there is a MySQL database listening on port 3306. Is it possible to use putty (on my machine) and ...
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5answers
3k views

How to effectively use screen and SSH?

I'd like to configure SSH and screen such that a login will always reattach to a screen session. Ideally, that session would not quit but detach when I press C-d. How can this be achieved? And what ...
8
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1answer
2k views

In which cases is SIGHUP not sent to a job when you log out?

I read an answer from a user who claimed that running foo 2>&1 >& output.log & would result in foo continuing to run even when they log out. According to this user, this even ...
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5answers
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What is the point of sshd “UseDNS” option?

I know what it does, but i don't know why. What attack(s) does it prevent ? Is it relevant for all kind of authentication methods ? (hostbased, password, publickey, keyboard-interactive ...)
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4answers
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Why SSH takes a long time to Connect

I have noticed that some Linux Servers in Network takes long time to connect using ssh. Situations: There are two situations I have faced: On some servers some times it takes a long time to ask ...
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1answer
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Convert OpenSSH private key into SSH2 private key

Is there a way to convert existing pair of OpenSSH keys to the SSH2 (ssh.com format) pair of keys? UPD: since there are some answers about ssh-keygen suddenly appeared, I'll explain where I came ...
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3answers
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How to open a port early in boot process to unlock LUKS via SSH

I have a fully encrypted server running Debian 7 and have set up dropbear and busybox to unlock the LUKS container via SSH (as described in this tutorial and in this U&L answer). Unfortunately, ...
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2answers
5k views

Tunnel yum traffic through another server via ssh

I am running a Fedora desktop behind a corporate proxy that is blocking yum traffic (specifically *.gz and *.bz2). I have access to a separate RedHat machine via ssh which can download anything it ...
5
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2answers
2k views

VPN like solution for SSH Tunneling?

Socksify like program for Fedora? Socksify, tsocks, proxycommand in ssh, they're great softwares/solutions that can be used to "constrain" given apps to use a SOCKS5 proxy (what was created with an ...
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2answers
54k views

Convert Amazon .pem key to Putty .ppk key Linux

I have generated and downloaded a private .pem key from AWS. However, to use Putty in order to connect to the virtual machine, I must have that key in .ppk format. The process of conversion is ...
14
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1answer
49k views

how to connect ssh 'with' specified port?

I know how to connect 'to' a certain port when ssh'ing. ssh user@remotehostip -p XXX but is there a way to establish a ssh 'with' a certain port? I mean, is there a way to specify the port which ...
14
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5answers
3k views

How to copy a file that is still being written over ssh?

Here is the situation: I am uploading a large file from client A to a server using sftp. I also need to download this file from the server to client B over ssh. What I would like to do is start ...
13
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1answer
3k views

Reusing ssh session for repeated rsync commands [duplicate]

Possible Duplicate: Using an already established SSH channel I have a remote server accessible via a chain of SSH proxies. The resulting channel is wide and fast enough, but setting it up ...
7
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2answers
17k views

Sending function keys (F1-F12) over SSH

I have a Fedora machine that I can SSH to. One of the programs I'd like to use occasionally uses the function keys. The problem is that I'm SSH'ing from an Android tablet (ASUS Transformer Infinity) ...
5
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2answers
305 views

ssh tunnelling explanation

I have a question regarding ssh tunneling. I've read this article http://www.popcornfarmer.com/2009/01/ssh-tunneling-tutorial/ I would like to make X forwarding work and run some X applications ...
7
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5answers
10k views

How to securely allow scp, but not ssh

I work from a Mac Book Pro (called foo). I have a server where my customers scp large files to. (called bar). I frequently ssh into bar, and scp a file (called buzz) to my Mac. bob@foo$ ssh bar ...
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3answers
22k views

How to write a bash script, that logs onto an other machine to do stuff?

Is it possible to write a bash script, that would be started from machine A, logs in on a different machine B by ssh (both machines A and B would be Linux-Machines), copys some files on to machine B ...
5
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7answers
514 views

Are there additional ways to protect SSH connections besides firewall and RSA Keys?

Sometimes I don't have a static IP and need to administrate my web server remotely. I'm looking for any additional layers of protection I could add to make opening port 22 safer. Currently I have ...
5
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2answers
6k views

How to attach to remote machine's local display session over ssh?

Scenario: Linux mint is running on a machine at my home. I have some gui applications open on it. I'm away from home but want to get at the open applications. I have cygwin/x and I know how to ssh ...
5
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2answers
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How do I disable remote root login via ssh?

How do I disable remote root login via ssh? I want to log into my server (I use keys on my main comp) then su into root instead of access root directly. I am using Debian. I follow guides online ...
5
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2answers
1k views

How can I forward traffic from my publicly available server to a computer that is not publicly available?

My home computer is behind an ISP-level NAT which does not allow me to host game servers as a result. I have a VPS which I use as a web server. I want to host a game server of Minecraft, but the VPS ...
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3answers
20k views

How to copy between two remote hosts using tar piped into SSH from remote server when behind a firewall?

I'd like to transfer a directory between two servers, but compress the directory on the remote host before transfer, and then uncompress to another host. I'm sure it's possible to pipe everything all ...
3
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3answers
1k views

Run a parallel command while waiting for ssh

I need to ssh into a server and check for a service to see if it is up and running. What i do is to use ssh and run a command which calls that service and check the output of that command. I want to ...
3
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2answers
14k views

Colorful ssh banner

I would like to colorize my ssh banner. I know I can perform it like so: In /etc/profile I can put: echo -e "\e[1;31m Colorful text" echo -e "\e[0m Reset" But I have some ASCII art in the banner ...