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

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What causes delay in my keystrokes on OSX's Terminal application?

I'm using the OSX application Terminal to work remotely on Amazon EC2 servers through SSH. Occasionally and seemingly randomly, my keystrokes are delayed. I've tried reconnecting, restarting ...
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797 views

Execute command through SSH

I am writing a script to check whether all the servers in my organization are functioning properly. One of those is Zimbra mail server. I am trying to send a mail through sendmail provided by zimbra ...
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Accidently created a file called -X, how can I delete it? [duplicate]

Possible Duplicate: How do I delete a file whose name begins with “-” (hyphen a.k.a. dash or minus)? Like an idiot, I ran this command: tar -cf -X awstats-icon icon ...
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1answer
288 views

How to put a tunnel in a tunnel?

I know I can create an ssh tunnel and then tell a program (with tsocks) to use it for networking. But. How can I put an ssh tunnel in an ssh tunnel? I mean I can't again use the tsocks in tsocks ...
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Cannot Connect Using SSH: UseDNS terminating

When I attempt to login via ssh like so ssh marc_mtpt0@m3pt0.com I get this response: /etc/ssh_config: line 51: Bad configuration option: UseDNS /etc/ssh_config: terminating, 1 bad configuration ...
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1answer
542 views

UFW Limit does not appear to work

I have my ssh port changed to XXX. Then I did ufw limit XXX/tcp However, when I try to login, after 5/6 failed attempts I get thrown back to prompt, but I can try again. Is that supposed to be the ...
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587 views

Good practice to use same SSH keypair on multiple machines?

I recently got a new laptop for work, and I was wondering whether it'd be good practice to keep using the same RSA keypair as I'm using on my old work laptop. I'd really like to not have to create ...
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2k views

Is there any way to get control over a terminal by ssh with no (screen) [duplicate]

Possible Duplicate: How can I disown it a running process and associate it to a new screen shell? Let's say I'm install applications directly on to a Linux box. May I go to another machine ...
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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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How to edit authorized_keys?

What is the best method for editing the /root/.ssh/authorized_keys file? I mean if I need to append a new key to my authorized_keys file, than what are the best methods to do that?
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619 views

wrapper command for sshd_config?

Is there a command to set settings in sshd_config, instead of manually editing the file? I would prefer it to do this way, because it's easier to automate. Otherwise I'd have to grep config with my ...
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466 views

X11 Forwarding Problem Netscape

I have the following problem. A working verbose x11 forward request looks like this: remote server release: Red Hat Linux release 6.2 (Zoot) sh-4.1$ ssh -1 -vvv -l username -o "ForwardX11 yes" ...
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How to speed up X over fast connection ? (especially over ssh)

What are recommendations on speeding up X applications over local fast (gigabit) connections? (similar question for slow connections) Currently I'm running over ssh -Y, which is fine, but I wonder if ...
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469 views

SVN checkout under a different user name

When I ssh into my server I log in under root or my user on the system. However, when I checkout from my svn repos then are then owned by either root or my user, and therefore all files deployed to ...
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2answers
3k views

How to limit number off ssh login attempts per time interval

I am trying to limit number of ssh login attempts per time period. How might I do that? I have something like (in shorewall's rules) #ACTION SOURCE DEST PROTO DEST ...
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5answers
440 views

What should I do with a remote AIX machine if I accidentally “chmod 644”-ed the “/usr/bin/ksh”?

Now the machine asks for password...The ssh was configured with key auth.. The problem is that ksh doesn't has executable permission anymore.. :\ What can I do remotely? Any tips? The root's shell ...
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1answer
7k views

Kill an unresponsive ssh session without closing the terminal

Is there a way to disconnect from an SSH session that has become unresponsive without killing the whole terminal? Specifically I'm using konsole, and the machine I'm working with sometimes hangs, but ...
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3k views

How to connect two computers via internet with ssh?

I want to connect another computer via internet that doesn't have a public IP. Is there any away to do this?
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832 views

Deny external SSH access to a user

Is it possible to deny access to a user (in my case www-data) from outside the network? Or possibly deny this: ssh www-data@example.com But allow this if already logged in: su www-data
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1answer
628 views

ssh prompts for password despite .ssh/authorized_keys

I issued ssh username@db2workgoup -n "echocat ~/.ssh/id_dsa.pub>> ~/.ssh/authorized_keys" and then checked that the key was stored in authorized_keys file. But ssh is still asking for the ...
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633 views

If you SSH into another computer, how to access other X displays?

This is a query based on personal use. A troll in our local network had downloaded Crikey, the key-event simulator. He used it to simulate events on other computers, leading to unwanted things. For ...
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3k views

Open GNOME session remotely through SSH

I have a laptop connected wirelessly to my home network. I'm planning on installing a CentOS server on my network, used for a web server, a file server, and experimentation. I want to access it from ...
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1answer
912 views

Monitoring the OpenSSH sFTP process?

Is there a way to monitor the current status of my sFTP process from my Debian server? I'm looking from something similar to top or netstat that will give me the status/progress of activities ...
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Logged on via ssh-key, can I reset my account password?

I am logged in on a server via sshkey (ssh -i /home/me/.ssh/ssh-key me@server). I got sudo rights on that server from the admin, but I can't exercise them, since I forgot my actual Unix password (or ...
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How can I lock my own account from remote ssh login with password?

I don't want to disable remote login with password altogether, but I want to make it so that my account is only accessible with key pair authentication (there are other users who wants to use ...
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killing a process on a remote machine when the machine is stuck

I started a very resources-consuming process on a remote server via ssh. It is an optimization problem run in MATLAB. It takes full memory and CPU. In fact, I am not even able to ssh to the machine, ...
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322 views

Provide user name when using vim with scp

I was reading about SSH here http://blogs.perl.org/users/smylers/2011/08/ssh-productivity-tips.html and found that you can use vim to directly modify a file on a remote server that you can ssh into. ...
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141 views

How can I log in my laptop with public key authentication?

Stemming from my recent aversion to passwords (this thread convinced me), I'm wondering if there's a way to login locally (on my laptop running Crunchbang/Debian) by using public-key encryption. I ...
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Copy file over existing SSH session? [duplicate]

Possible Duplicate: SSH easily copy file to local system Let's give the following example: I've connected to ssh user@myserver.com. I need to copy a local file over to the remote ...
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2answers
2k views

working with filenames in a different encoding over ssh

I'm ssh'ing to a remote system where a different encoding for the filenames (and for the users' locales) has been used. And this causes some problems. Problems solved by matching the locale settings ...
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3answers
1k views

ssh via multiple hosts

To get to my machine in my office, at the moment I am doing this: me@home:~$ ssh unix.university.com me@unix:~$ ssh unix.department.univeristy.com me@unix.department:~$ ssh ...
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1answer
544 views

Only use mtime comparison with rsync?

Is it possible to sync files via rsync and let rsync only compare mtime informations? Or is there another tool for this job? That means that such a tool only copies src to destination if the src is ...
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1answer
406 views

change sftp to ftp

I recently installed a CentOS machine for a couple of game servers. I followed some tutorials on the web for that, because I'm a linux noob. But. I want to sftp to store data on the server but it is ...
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5answers
2k views

Configure permissions

I'm sharing a git repository with a friend over SSH. He pushes from and pulls to his git repository using my machine's SSH server, where the shared git repository is. Problem is that when he pushes a ...
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3answers
2k views

SCP works, but SSH doesn't (over wifi)

As the title says, when I'm using wifi at my office, I'm able to copy files to and from my server using SCP, but for some reason SSH is non-responsive. It just hangs, doesn't print anything, and I ...
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1answer
301 views

Start up ssh connection on startup

I need to start a ssh connection to a proxy in order to have access to some resources. I have written the shell script and managed to run the script successfully. However, I found it very ...
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Is my SSH key paired with me as a human, or with my user account on one machine?

In the past few days, I have been trying to acquaint myself with SSH, and I hope that I've understood it. One question remains, however -- is my key associated with me (as the user) or my user ...
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SSH “command not found” for Zsh

Im using Zsh on the client and server. When I use ssh to run a command on the remote server it can not find the binary: ssh gt "cd /home/****/app/staging && bundle exec rake db:migrate ...
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1answer
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Can sshd restrict client tunnel endpoints to localhost?

Normally an ssh client can request TCP forwarding using the -L command line option. The server can disable this completely using AllowTcpForwarding no. If enabled, the client can request to connect ...
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2answers
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Starting firefox on a remote host (over ssh) opens a new window locally: what is happening?

I have never noticed this behaviour before, and am a little confused as to what is happening. I have a local copy of firefox running, then ssh (ssh -X <url>) into a remote server and start a ...
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1answer
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Running vim on a remote Linux machine “freezes” OS X SSH connection

(cross-posted this from SuperUser as the question seems more relevant to this audience) I am attempting to SSH to a Linux (Fedora 14) machine and then open up vim to edit a file, however on my new ...
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1answer
813 views

SSH Public key comment separator

I've created a SSH authentication key (with ssh-keygen) in two different servers, both with a useful comment, but the public key of one server has == between the key and the comment, while the other ...
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1answer
1k views

How to enable nagios user created by yum to use check_by_ssh

I've used yum install nagios on an Amazon Linux instance, and it created a nagios user with shell /sbin/nologin and homedir /var/spool/nagios. This is the behaviour on EC2. I want to use check_by_ssh ...
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2answers
608 views

How is FireFox running on a virtual machine that has no display?

I am using a Red Hat virtual machine, accessible only remotely. However when I use the top command, one of the displayed processes taking up the most memory is firefox, located at ...
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3answers
743 views

Do I need a desktop to run a GUI?

I am setting up a lightweight VM, following the guide in the Ubuntu Documentation What I want to be able to do is ssh into the VM and then launch a GUI application. I don't need / want a desktop. ...
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515 views

How do I set Keyboard and profile preferences when connecting to Solaris via SSH?

I'm connecting to a Solaris box from Mac OS X. Whenever I have connected to linux boxes in the past it has been much easier to navigate around. How do I fix these configuration issues on Solaris? ...
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1answer
4k views

How to install java on CentOS VPS through ssh

I wrote a little Java servlet and, in order to run it, acquired a VPS which runs Centos 5. Now, in order to run it, I guess the first thing to do is to install the latest JRE. I have ssh access and ...
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4answers
681 views

SSH Do not connect even with publickeys installed

I'm trying to connect two servers. I got the id_dsa.pub key from user john from server A and paste into authorized_keys of user mike from server B. Then I tried to connect from server A to server B ...
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491 views

What is the proper way to automate SSH/local command?

I have gitolite on a Centos 5.5 box - when a repository is updated, I need to send a command to my bug tracking appliance to get the new commands. Right now, I have the following command working: ssh ...
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1answer
198 views

X Session / xdmx, keybindings lost

I am using startx (with Xdmx) to run a remote session on another computer. However, when I do this, keybindings (especially control, alt and the cursor keys) are not correct on the remote ...