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

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2
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1answer
274 views

Matlab R2010a over ssh -X displays empty windows

I'm trying to use Matlab R2010a over ssh, with X forwarding. Now the X forwarding certainly works (for example xclock displays nice and fast) But when invoking matlab, I get the splash screen ok, ...
23
votes
4answers
16k views

How to speed up X over SSH on a slow network connection?

Are there any specific recommendations on speeding up X applications over ssh on a slow network connection? In this specific case, I am accessing a server located in west coast from a laptop in east ...
3
votes
3answers
7k views

What is pageant for Linux? Saving SSH private key passwords

I want the computer like pageant, to show a SSH password prompt during boot time. I have my private keys stored in a Dropbox between 3 computers of which 1 is now Ubuntu. I have googled for 2 hours ...
8
votes
3answers
17k views

ssh, start a specific shell, and run a command on the remote machine?

I am in a situation where several users are sharing the same user account on a remote machine. I have a "personal" directory where I wrote my own .zshrc file, and I would like to have a way to: ...
1
vote
1answer
399 views

Asking rsync to transfer files without connecting to the remote rsync server?

If I understand correctly, rsync tries to connect to a remote rsync server when transferring files via -e ssh. This worked well for me most of the time, but I am having problems rsyncing with a ...
0
votes
2answers
594 views

Files uploaded as root to the web server can't be overwritten by web application

Here is my problem. I am developing a web application in PHP/MySQL and I am having some problems setting up the accounts I need to use. Development workstation: WinXP SP3, Eclipse PDT Development ...
4
votes
1answer
3k views

How do I recover/kill an SSH session after losing connection?

I lost my connection while I was logged via SSH into my university server. Classic. Now I can't log in since the session appears to be still running and I get the error "Too many logins for ...
7
votes
4answers
26k views

How to make putty to not break my session after some time?

Each time putty is breaking session after some time if I am doing nothing. There is no any time parameter on putty so how can I stay my putty ssh session always Alive ?
2
votes
2answers
85 views

Connecting to a machine which is behind a university gateway

I have a username and password to connect to a remote machine which is behind a university gateway (using ssh). However, I don't have a username and password to connect to the gateway itself. I ...
0
votes
3answers
5k views

How to copy files from linux to windows using winscp from a folder which contains millions of files

I need to copy files from a linux machine to a windows machine where the only ports which can be open are for SSH (22). I can connect to the linux machine using WinSCP but the problem is once I try to ...
7
votes
4answers
2k views

How to debug SSH port forwarding

This is an extension to ssh port forward to access my home machine from anywhere I tried things mentioned there but I am not able to ssh to my machine. Netgear router settings for port forwarding: ...
3
votes
1answer
2k views

User logged in by sftp does not show up in `w`

My server is Centos 5. I have a chroot environment set up with the following in my sshd_config Match group sftponly ForceCommand internal-sftp ChrootDirectory %h AllowTcpForwarding no ...
3
votes
2answers
3k views

SSH tunnel to router periodically hangs. TCP problem?

Something weird I've noticed since upgrading my office router to the Buffalo WZR-HP-G300NH. When I remote in using an SSH tunnel, the tunnel will "freeze" pretty often. The freeze lasts 1-2 minutes ...
0
votes
2answers
2k views

Unable to connect to host via ssh

I have problem connecting to host via ssh. It prompts me this error : debianbox@debian:~$ssh cdcharles@hephaistos.rsr.lip6.fr ssh_exchange_identification : Connection closed by remote host The ...
4
votes
1answer
292 views

Emacs ansi-term and term not working well when I ssh into a remote machine

I have the exact same Emacs configuration on a local and remote machine, and when I run M-x ansi-term or M-x term on each of them individually everything works great. However, if I run any of these ...
2
votes
1answer
195 views

Why can I still log in via SSH (PAM Auth) while `shutdown -k` is active?

Pretty straight-forward. Does SSH ignore the nologin file created by shutdown -k TIME? Using PAM Auth to sync password database to users; if that makes a difference.
3
votes
1answer
4k views

Compress a directory using tar/gz over SSH to local computer?

I'd like to essentially tar/gz a directory on a remote machine and save the file to my local computer without having to connect back into my local machine from the remote one. Is there a way to do ...
6
votes
4answers
464 views

SSH “sleeping” for a long time before connect? [duplicate]

Possible Duplicate: How to speed my too-slow ssh login? I have a very strange issue with my SSH server. Whenever I attempt to connect, it literally waits about 30 seconds to a minute before ...
6
votes
4answers
15k views

Set some firewall ports to only accept local network connections?

Basic firewall question: How do I set up the firewall on a system in a LAN so that some ports are only open to connections from the local area network, and not from the outside world? For instance, ...
4
votes
1answer
949 views

Use different authentication methods for OpenSSH server depending on client IP

I'm sure this has been answered before, but I could not locate the answer with Google, and this search. I currently only allow shared key authentication for openssh server on my box. However, I ...
1
vote
2answers
182 views

Multiple Unix Sessions

Is there any way I can open multiple Unix sessions on different servers at the same time? I don't want to use ssh, as I want to monitor the CPUs of all those servers at the same time, which will keep ...
4
votes
5answers
442 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 ...
2
votes
1answer
133 views

Suddenly changing users [closed]

Has anyone ever encountered a scenario where you are logged into a system going about your standard business, cat, ls, tail, grep, vim, find etc. and suddenly permissions to regular things stop ...
9
votes
2answers
6k views

ssh port forward to access my home machine from anywhere

http://serverfault.com/questions/303937/how-to-make-freebsd-box-accessible-from-internet I want to understand this whole process of port forwarding. I read so many things but failing to understand ...
4
votes
1answer
299 views

Reverse ip lookup

I was wondering if it is somehow possible to lookup the ip of a machine I ssh'd into from. This is the scenario, I'm at home, I've VPN'd into a server that I ssh into constantly in the office but now ...
1
vote
1answer
174 views

How to “set” this home network mesh up

I don't know much about networking security other than keeping unused ports closed is good. This is what I'm trying to accomplish: I need to be able to keep my server (the dotted line) with limited ...
1
vote
1answer
97 views

If I SSH into a remote machine and my connection gets dropped, then is there a chance that the run I made will continue on?

Or will the run halt along with everything (though maybe partial progress could be made if I use a ">" to print progress so far to a file)
2
votes
2answers
9k views

SSH tunnelling with multiple dynamic port forwardings

I am trying to monitor multiple JVMs running on different servers through an ssh tunnel. Thanks to one of the UNIX gurus here, I have managed to get this running for a single server by: Run jstatd ...
3
votes
1answer
2k views

How to kill a command started over SSH - the SSH connection lost

If I use timeout 10 ssh -n -o BatchMode=yes 1.1.1.1 'sleep 20' > 1.1.1.1.txt 2>&1 & To give out a remote command on a server, and I kill the SSH connection after 10 seconds, then I ...
9
votes
9answers
21k views

Automatically run commands over SSH on many servers

There is a list of IP addresses in a .txt file, ex.: 1.1.1.1 2.2.2.2 3.3.3.3 Behind every IP address there is a server, and on every server there is an sshd running on port 22. Not every server is ...
4
votes
2answers
725 views

Prevent tmux from starting up on SSH

I would like tmux to create a new-window when I ssh onto a machine from an existing tmux session. However, I do not want a tmux session started on the new machine! I have the following in my .bashrc, ...
4
votes
2answers
5k views

Can ssh return directory list?

I have ssh access to other Suse box and I want to list particular directory on the suse box. It will be done from other suse box. I will run this from php later on. Is something like that possible?
13
votes
3answers
8k views

Answer yes in a bash script

I'm trying to do a git clone trough a bash script, but the first time that I run the script and the server is not known yet the script fails. I have something like this: yes | git clone ...
4
votes
3answers
731 views

Is there a way to run an ssh server on an Android device?

I'm looking to install Debian over my Android installation so as to be able to use openssh-server, as it's so much better than Dropbear. Is there an easy way to do this, or just to simply install ...
4
votes
2answers
11k views

“Permission denied, try again” while transferring files with scp

I have two servers (A and B) and my local machine. I'm trying to transfer a file from server A to server B. From server A: scp ./backup.tar user@server.b:/home/public/ Permission denied, please try ...
4
votes
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 ...
3
votes
1answer
785 views

Make a failed SSH forward a fatal error

I have a script which connects to a remote host to replicate some files via SSH. I must connect to an rsync daemon listening on port 873. To accomplish this I have a ssh configuration like this. ...
4
votes
1answer
85 views

Linux ssh shell prompt

While trying to type ~/Code, I somehow got myself to some sort of ssh shell: ┌─[jpearson@cominor] - [~/code] - [Fri Aug 05, 06:08] └─[$]> ssh> ^D As you can see, ctrl+d exited me out of it, ...
4
votes
1answer
2k views

How can I convert a PEM key into a RSA key pair?

I was just sent a PEM key from a client as a means to access their Amazon EC2 instance. How do I convert this into something I could use with OpenSSH?
5
votes
2answers
764 views

How do I configure ssh tunneling past a firewall?

I have a NAS running Linux behind a firewall at home. I want to access it remotely using a few services such as a Transmission GUI (port 9091) and webmin (port 10000), but through an SSH tunnel on ...
28
votes
4answers
8k views

Can mouse wheel scrolling work in a /usr/bin/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 ...
4
votes
3answers
5k views

Is there any way to improve Putty on slow connections?

I'm working with putty but have a slow connection to the server. It's not slow everywhere and I don't need to get it faster. There is latency between when I type and when the text is displayed in the ...
15
votes
1answer
5k views

How can I configure a reverse SSH connection to the connecting computer?

I'm going to be deploying a number of machines in the near future which will be behind routers. It won't be feasible to set up dynamic DNS on each router and port forwarding, so is there a way I can ...
1
vote
1answer
1k views

cryptsetup luksOpen only accepts password via ssh

while installing my Gentoo system I encoutered a strange error. One of my disk is encrypted, I have done all the installation via ssh, so did I enter the encryption passphrase via ssh. Now I entered ...
8
votes
1answer
174 views

Does ssh-agent store my passphrase?

Is it possible to determine the passphrases of private keys added to ssh-agent? I'm thinking along the lines of someone with root privileges trying to find out my passphrase after I have added the ...
12
votes
5answers
22k views

How to delete a file on remote machine via SSH by using a Shell Script?

I am writing a Shell Script where I have to delete a file on a remote machine via a Shell Script. Flow manually: ssh username@domain.com .. then at domain: cd ./some/where rm some_file.war How ...
5
votes
2answers
2k views

Can KWallet manage my ssh passwords?

I need a way to store some SSH passwords. Note that these are login passwords which I need to pass to ssh; key authentication is unfortunately not an option. I'd like to be able to have KWallet fill ...
21
votes
2answers
35k views

Is there a command to list all open displays on a machine?

When SSH'd locally into my computer (don't ask, it's a workaround), I can't start graphical applications without running: export DISPLAY=:0.0 If I run this first and then run a graphical ...
0
votes
2answers
1k views

Multiple concurrent SSH sessions from different clients but with the same user/password

Opening multiple concurrent ssh sessions from different clients but with the same user/password. Is that possible?
6
votes
2answers
1k views

How to make password-less login work

I generated a key and copied it to my target: ssh-keygen ssh-copy-id username@hostname I left the the location of the key as default and did not set any passphrase. For a small while after that, I ...