SSH (Secure SHell) is a protocol for running commands on a remote computer.
4
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2answers
66 views
Determining the Password Status of a User
I have a debian box that I connect to via SSH. I have removed the password from the users root, and my personal account using the instructions here, and set up a public/private key pair so I can log ...
4
votes
1answer
456 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 ...
4
votes
4answers
247 views
SSH to untrusted machine
If I SSH to a remote server, is it be possible for the admins of that machine to use my SSH session to send data back down the connection and do something to my local PC? I use DSA keys and do not ...
4
votes
3answers
176 views
I'm moving up from managed hosting to a VPS, what do I need to know?
I'll be starting to use a VPS for my web hosting this week, which is a big step-up for me since I've only used managed/shared services before. I've a bit of experience with Linux before and I'm not ...
4
votes
4answers
857 views
Copy text from one terminal into another
I am logged into ssh to a university account from my home computer. Then I find a file that I want to copy onto my local system. So I open a new shell terminal and am about to use scp to copy that ...
4
votes
2answers
620 views
How to override port settings when connecting to a public wifi?
I am connecting to a free public wifi, I want to connect or use other ports like FTP and SSH. What are the possibility to override it?
In order to connect to the internet, They are requiring me to add ...
4
votes
1answer
56 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
216 views
SSH login as root fails, but I'm sure I entered the right password
What am I missing? I change the root password on a unix machine, then try to log in with that password. PasswordAuthentication is set to yes in sshd_config and the sshd daemon has been restarted. ...
4
votes
6answers
348 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 ...
4
votes
3answers
608 views
DynDNS alternative for SSH?
I have an server that has a dynamic IP address and is accessible over SSH. On the server, a script uploads a text file containing the server's public IP address to a web location whenever that address ...
4
votes
1answer
2k views
Why don't Page U/Down, Home/End work in less on Solaris over ssh from Ubuntu?
I need to work on a Solaris server over ssh from my Ubuntu (Lucid) laptop. I got Home/End Insert/Delete Page Up/Down working in csh and bash using bindkey and ~/.inputrc, respectively. But I can't ...
4
votes
2answers
7k views
ssh and character encoding
When I ssh into my VPS, I have irssi running in screen. When someone sends a unicode character (such as © or €), irssi displays garbage when I use it via the screen in a ssh session. If I connect to ...
4
votes
2answers
109 views
Is it possible to store ssh connection in bash script instead of $(ssh user@ip command) every time?
I think that the code that I already have is not very efficient as it has to connect each time to the same machine and execute a command. Code:
tmp=$(ssh -nq $USER@$IP "$COMMAND" 2>> $LOG)
...
4
votes
1answer
184 views
How does X11 forwarding work?
How does X11 forwarding work? I am interested in knowing whether the processing to render graphics is done at the end of the host running the application or the host displaying the graphical ...
4
votes
1answer
216 views
Avoiding duplicate entries in ~/.ssh/known_hosts
I have my DNS search path set to ".intranet", ie, /etc/resolv.conf contains:
search intranet
When I SSH to a host using a FQDN, like "mailserver.intranet", it adds an entry for ...
4
votes
1answer
188 views
Is it safe to use /bin/cat as shell for a restricted user?
I need to remontely log on to few peoples machines to do maintanance tasks, but sometimes the machines can be behind firewalls or NAT's.
The way I have been doing it is to give the user advice on how ...
4
votes
1answer
331 views
Ssh keeps asking for passphrase several times
I have a remote machine, with which I have set up public-key ssh auth - that is, I can ssh to it without typing in password each time. And I have a set of actions in a script, which use that ssh ...
4
votes
2answers
142 views
Sharing private keys across machines
Say I have local access to two machines A and B and remote access to machine C.
If I generate a public-private pair of keys for accessing machine C from A, can I share the private key with machine B ...
4
votes
1answer
217 views
SSH HTTP Tunnelling
I am trying to set up an SSH account on my server for someone, and I only want to give them access to tunneling internet traffic. I set their user's "shell" to /bin/true, so now when they SSH (and ...
4
votes
3answers
1k views
SSH authentication: either SSH keys or one time password
I have an Ubuntu 10.04 Linux server that I normally ssh into (from my home machine) using ssh key authentication. However, sometimes I need to ssh remotely from potentially insecure machines (like ...
4
votes
1answer
250 views
Detecting ssh agent forwarding
How can I find out whether ssh connection has been established with or without agent forwarding?
I'm trying to do following:
ssh-add -D (delete all stored keys)
ssh --vvv something
ssh-add (adding ...
4
votes
2answers
4k 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
123 views
I can't ssh on localhost at a certain port on os x
Here are basics information:
$ which ssh
/opt/local/bin/ssh
It's like that because I'm using MacPorts and it did install there.
I did the sudo port load openssh
When doing a netstat -an | grep ...
4
votes
2answers
1k views
Can I set my local machine's terminal colors to use those of the machine I ssh into?
I have a color scheme that I like for when I'm in a terminal, but I ssh into the machine I work on from multiple sources (locally, PuTTY, my netbook, etc.) and I want to maintain the same color scheme ...
4
votes
2answers
248 views
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.
1: On some servers some times it takes a long time to ask ...
4
votes
2answers
168 views
Regexp in .ssh/config
At work, I often have to log into hosts which follow a common naming scheme, e.g. qc01 - qc12, hc01 - hc10, and so on. All of these need to get the same config values in my laptop's .ssh/config. Of ...
4
votes
1answer
371 views
Why ssh-copy-id prompts for the local user password three times?
Noticed from my previous question that when trying to copy an SSH public key to a remote host via ssh-copy-id, I am prompted for the local user password three times:
ssh-copy-id myuser@myserver
...
4
votes
1answer
326 views
How to safely resume an aptitude dist-upgrade after SSH timeout?
I started aptitude dist-upgrade over SSH on my local network. At some point the session timed out but the upgrade was not finished (it was left at one of those accept software agreement screens-- I ...
4
votes
2answers
563 views
SSH LocalCommand on exit
In ~/.ssh/config you can use the LocalCommand directive to execute a local command whenever you connect to a remote machine via SSH. But how do I execute a command when I exit an SSH connection? It ...
4
votes
1answer
136 views
Does a remote system accessed with SSH have a system clipboard?
According to wikipedia in the bash shell control+u
Clears the line content before the cursor and copies it into the clipboard
If I'm ssh'ed into a box and try that, the text certainly disappears ...
4
votes
2answers
920 views
Why SSH is asking for my private key password each time
Since yesterday, each time I try to connect to an ssh server, I got asked for my password. What should I do to make SSH not ask for my password each time.
4
votes
2answers
2k views
How can I track who SSH'es into my linux machine?
I'm running Ubuntu 10.04. Is there a way I can get a daily report of who has logged onto the box, what time, and even - this may be asking too much - a report of the commands they used? This is a ...
4
votes
1answer
242 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 ...
4
votes
1answer
1k views
Foreign characters won't display in SSH
I'm having some problems with using ssh and a remote server (which I do not have admin access to) - Specifically, there are a couple of folders on there with Korean and Cyrillic text.
When I display ...
4
votes
2answers
270 views
Run mpirun and ssh-add remotely on the same session
I am developing a program that is running on multiple machines using MPI.
I have machines on Amazon EC2 where I can start mpirun from one of them (the master).
Everything works as I expect if I ssh ...
4
votes
2answers
426 views
Scp doesn't work in cron
Yeah, I know it's classic. I've googled it all around, but still it doesn't work. I have the following script:
#First go to SVN repo folder
cd $svnrepos
# Just make sure we have write access to ...
4
votes
1answer
64 views
how to escape “\”in ssh-copy-id?
I'm connected to Ubuntu server that is a member of a corporate Active Directory domain via likewise-open. The users are in the form mydomain\myuser. I can connect to it via ssh, escaping the \ with ...
4
votes
1answer
423 views
scp permission denied after 'hardening' with bastille
I recently 'hardened' two Ubuntu servers using Bastille, and now I get permission denied: scp whenever I try to scp files in.
SSH login works fine.
I've tried adding an /scp-dump folder with 777 ...
4
votes
1answer
314 views
controlling a process from a different session
So, I ssh into my remote computer and launch a process... time passes... my ssh session breaks. I log in again, and of course, I don't have access to the original process now. I can see it still if I ...
4
votes
2answers
380 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 ...
4
votes
2answers
10k views
How to add a ssh user who only has permissions to access specific folder?
How to add an ssh user who only has permissions to access specific folder?
useradd -d /var/www/xyz.com.tr/musteri -s /bin/bash -g sshd musteri
I created a user called musteri. I set its home ...
4
votes
1answer
416 views
Why is vimdiff so slow?
Whenever I'm in vimdiff mode, my PuTTY session slows down considerably. This is especially noticeable when I try to scroll down many lines by keeping j pressed.
Why is it so slow in comparison to ...
4
votes
4answers
630 views
SSH tunnel hanging
I'm trying to use an SSH tunnel from home to a computer in the university so I can access some articles.
Both machines are running Ubuntu 11.04, the university machine runs openssh-server.
I my ...
4
votes
2answers
1k views
How can I run Yast with X and ssh?
I have an openSUSE machine which I log on to with ssh -X. I don't want to log in as root but I do want to run graphical Yast. Inside the ssh session sudo starts the console version of Yast. However, ...
4
votes
1answer
419 views
SSH not terminated after exit when there is X Forward program
After running X programs over SSH, SSH doesn't terminate after shell exit (have to use e.g. CtrlC to kill it).
My guess is although the X program already exit, there is still some "connection" left ...
4
votes
2answers
557 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
3answers
443 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
1answer
348 views
Configuring ssh fingerprints on dns to replace known_hosts fails
The SSHFP records were generated on the ssh server as follows and then added to the zone in bind:
$ ssh-keygen -r www.test.us.
www.test.us. IN SSHFP 1 1 ad04dfaf343a93beeb939eed1612168f7eadbed7
...
4
votes
1answer
187 views
Force pubkey-auth user to set password at first login
When I create a new user account I ask users to send me a public key, and want to force users to set the password the first time they log in with keypair authentication. If I create an account with an ...
4
votes
1answer
782 views
How to print from remote over SSH to local LAN printer?
OK, so it is fairly straight forward to to run apps from a remote server on my local X screen as though they were local apps. The question is, when trying to print, the remote app only sees printers ...
