SSH, otherwise known as "Secure Shell", is a method for securely connecting to a remote computer.

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Is there a way to have wall messages show to desktop users?

Let's say I'm away from home, ssh-ing on my home computer. For any reason, I need it rebooted. # shutdown -r +10 This sends a warning message every minute via wall, which is completely invisible ...
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4answers
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Identify the server I'm working at

How to identify which server you're on when using ssh from terminal? I have to ssh into 30 servers daily, and switch between them constantly. Currently I'm editing the tab name and writing the IP ...
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4answers
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Key-based SSH login with Nautilus' “Connect to Server”

I tried loggin into an SSH server via Nautilus' "Connect to Server" feature by just leaving the password blank, but that didn't work. How do I connect to my server using the key I have on my system?
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“Remote host identification has changed” warning when connecting over SSH

I got this message today when trying to log into my server. What should I do? Whats going on? $ ssh 10.10.10.69 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST ...
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2answers
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Bizarre SSH Problem - It won't even start

I recently got Ubuntu 12.04 Precise, got it up and running with some MediaWiki software, static IP on the box and router and was able to access the main page even from a cell phone. Everything seemed ...
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2answers
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Copy files from a server via ssh to dropbox.

I have a user in a linux server (Debian) with ssh access, and have some files on it. I need to copy the files to my Dropbox. but I donot want to copy to my Dropbox in my PC and Laptop, I want to first ...
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Encrypting Files and folder through terminal

I am new to part of encryption on Ubuntu . Is there any way to encrypt files and folder with password from terminal ? without using truecrypt or cryptkeeper etc.
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Paswordless Rsync Over SSH Without Key Authentication [Un-Safe]

I want to set up an RSync job that would connect through SSH. I have my computer ( backup@myhost ) and the remote host ( test@remhost ) and I need to backup the folder ~/something with all it's ...
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4answers
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Invalid SSH key error in juju when using it with MAAS

This is the output of juju from a clean install with 2 nodes all running 12.04 juju bootstrap - finishes with no errors and allocates the machine to the user but still no joy after juju environment-...
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5answers
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How do I suspend over ssh?

I guess this question is pretty much the same as How to configure dbus to allow ssh-user to suspend server?; except I wanted to formulate it better. Assume I have an Ubuntu server running nonstop, ...
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2answers
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Editing remote files via SSHFS mount very slow (Sublime Text)

I'm trying to nail down the best way to work on projects located on a remote server. I use Sublime Text and I've been experimenting with SSHFS on Ubuntu to mount the remote directory locally and then ...
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1answer
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Is it possible to save ssh password in remmina?

I have remmina 0.9.99.1 (1.0.0) in ubuntu precise 12.04 Can I save the ssh password so that it won't prompt me again for it
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2answers
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Unable to ssh remote unlock encrypted ubuntu server 15.04 using dropbear/initramfs

So I'm trying to set up a brand new Ubuntu 15.04 headless server with full disk encryption and remote unlock capabilities. I've done this successfully on a raspberry pi running Raspbian-Wheezy, and ...
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3answers
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How set the Message of the Day (MOTD) as Ubuntu Server?

I have this in my Ubuntu SSH Banner Message: Welcome to Ubuntu 13.10 (GNU/Linux 3.4.43+ armv7l) * Documentation: https://help.ubuntu.com/ No mail. Last login: Mon Dec 2 08:25:39 2013 I'd like ...
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1answer
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How to mount a remote (over SSH) directory to be available like a local directory (incl. in shell, not just in Gnome)? [duplicate]

I've got my files (mostly text/code, nothing of heavy like videos etc.) in a directory on a remote server which I can only access by means of SSH. Can I mount it on my laptop to use it seamlessly from ...
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3answers
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How to open ssh://username@hostname link

I want to open link like "ssh://username@hostname" with ssh. I think xdg-open can help me(xdg-open ssh://username@hostname), but I don't know how. How can i do it?
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2answers
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SSH connection getting refused

I am new to linux and I am trying to establish a SSH connection with my friend's PC in the same LAN, but I am getting "ssh: connect to host 192.168.71.70 port 22: Connection refused". Both ways are ...
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2answers
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Error `could not load host key` when trying to recreate SSH host keys

I am trying to recreate the ssh-server host keys. I have at least two ways to do this: With dpkg-reconfigure dpkg-reconfigure openssh-server This works fine, but I cannot give the key length ...
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3answers
480 views

How do I set up a server for SSH?

At my workplace (a university) we have two Ubuntu servers. One is a teacher server and the other is a student server. I am currently setting up a new server to replace the existing teacher server. ...
5
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1answer
9k views

Limit SFTP user access to specified directory

I have a Ubuntu 14.04 server installed with open ssh. I'd like to configure sftp for customers to be able to download files only. In other words, I put files in a directory that they are jailed to. ...
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2answers
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Ubuntu 14.04 Nautilus “connect to server…” window changed

I'm having trouble because I want to connect to my EC2 server through my new installation of Ubuntu 14.04 and I just can't. I already downloaded the .pem key and added my server to the ~/.ssh/config ...
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3answers
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Can't SSH into Ubuntu Touch device

From my computer: cameron@cameron-ubuntu:~$ ssh phablet@192.168.99.124 Permission denied (publickey). So it seems that openssh on the phone doesn't have password authentication enabled. But it ...
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2answers
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Installing libwww-perl on Ubuntu 12.04,SE

I have an Ubuntu 12.04 server edition which I ssh into. I am running Perl scripts on this server but it fails when I load 'use LWP::UserAgent;' with error message: Can't locate LWP/UserAgent.pm in @...
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1answer
37k views

Why do I get “connection refused” errors connecting to a server via SSH?

I've installed Ubuntu 12.04.1 LTS on it with the LAMP stack. I can ping it but when I try to connect to it the server can't be found. When I try to connect with WinSCP I get the error Network error: ...
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2answers
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Persistent SSH Connection

I use this command to make an SSH tunnel to a remote server. ssh -D localproxy:9999 -C tcx0@111.222.333.444 I also made a shell script using expect command to auto process entire process with also ...
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1answer
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Keep the running processes alive when disconneting the remote connection

I have a bunch of processes on a server initiated by ssh from my own machine. It is now about three hours that my machine's Ubuntu has got hung and I do not see any other options but restart. Is there ...
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1answer
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ssh: connect to host HOSTNAME port 22: Connection timed out

I have trouble connecting to a server with ssh from my Lubuntu 14.04 computer, although it can be done from other machines. I can't get to the address online either (others can). Am currently using a ...
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2answers
253 views

How to grant access to a folder which resides in a folder owned by another group

Situation: Group A requires access to /path/to/dir/foo to upload files through ssh or ftp, but the directory in question: /path/to/dir/foo is owned by group B (if you'd like: /path is recursively ...
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2answers
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How do I mount a drive so that it is readable by me?

I'm working with over SSH with an external hard drive connected by USB. I know I can manually mount a drive with the following command: sudo mount /dev/sdc ~/dirToMountTo The problem is, if I ...
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1answer
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SSH installation errors

Please let me know what to be done here. I am trying to install Hadoop in Ubuntu.The ssh connectivity is throwing error $ sudo apt-get install openssh-server Reading package lists... Done Building ...
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3answers
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How to use rsync via ssh with rsa key passphrases?

How can I use rsync with passphrases? All googled "solutions" i found use passphrase-less keys which seems no real option. i am runnning 2 ubuntu servers 12.04.2 LTS.
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1answer
234 views

'ssh localhost' gives 'Permission denied (publickey).'

I'll mention some of many things I tried and give a couple of diagnostics. I would appreciate any clues on how to debug this: me@myubuntu:~/.ssh$ ssh localhost Permission denied (publickey). ...
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3answers
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ssh connection “permission denied” message

When I execute the command ssh localhost (in Ubuntu 10.10), it will display the error message "permission denied(public key)." What may be the problem? Is there any problem in sshd_config file in /...
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4answers
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Uninstalling ssh

ssh is installed in my system. ssh -V OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014 But when I try to uninstall it completely using sudo apt-get purge openssh-server it says ...
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1answer
457 views

Using SFTP with SSH ForceCommand directive

I have set up an SSH server (call it group2.fqdn) with this ForceCommand directive: Match Group group1 ForceCommand ssh -t group1.fqdn Match Group="*,!local,!group2,!root" ForceCommand ...
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2answers
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Accessing a remote file via ssh on Ubuntu 12.04 [duplicate]

I have a text file on one of my computers that is running 12.04. I was planning to use ssh to allow for another computer to read this text file. The issue is that the system that I am working with is ...
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2answers
89 views

Can not resolve aliases for ssh

Here is my problem: I got two machines in the same network 192.168.122.0/24 my /etc/hosts : 192.168.122.100 toto 192.168.122.110 tata if I type : ssh toto: root@toto's password: Permission ...
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5answers
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quick-and-dirty file sharing on a LAN

I have a rather large file(s), which I'd like to share between two Linux boxes on the same network. I'm somewhat familiar with scp, but how do I configure it on the host? That is, how does the host ...
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1answer
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How to get response from ssh command using expect

currently I am using following code, #!/usr/bin/expect -- set timeout 60 set username [lindex $argv 0] set password [lindex $argv 1] set ip [lindex $argv 2] spawn ssh $username@$ip expect { ...
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3answers
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ssh never ask for a password

Somehow my SSH never wants to ask me for a password. So I setup a VPS on some random server somewhere in the world and I want to connect to it with ssh. I can setup a key, but when I do this: ssh -...
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2answers
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Can I ssh (into a mobile device) via USB?

I have a tablet with a USB connection to a host computer. (Ideally the host is running Windows, but if absolutely necessary I could switch the host to be Ubuntu also.) I want to be able to SSH into ...
6
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1answer
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how to backup/restore the host key in ssh server

I have a ssh server, and some clients have login it via key login. So the host identity of server has been stored in the known_host of clients. I want to reinstall the server, but I hope it never ...
6
votes
1answer
26k views

ssh refusing connection with message “no hostkey alg”

My SSH connections worked well, but from last week SSH from my laptop to my board refusing connection. I can make a SSH connection from the board to laptop, but not vice-versa. I tried that with my ...
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3answers
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pgadmin3: Unable to initialize gtk, is DISPLAY set properly? [closed]

I'm having some trouble getting pgadmin3 to run on a remote server. I'm logging in to the server using SSH with the -X option. When I first installed pgadmin3, I was able to launch it using the ...
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1answer
622 views

autossh -ND at Ubuntu boot

I have setup key-less login at a remote server. I use the remote server for tunneling my data. I want my local system to ssh into the remote server at boot time automatically. I tried the solutions ...
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1answer
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Permanently raising nofile limits in Ubuntu 14.04 LTS

I cannot seem to figure out what exactly is needed to allow the maximum number of file descriptors to be raised permanently for all users. /etc/security/limits.conf: root hard nofile ...
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2answers
936 views

Everytime i am trying to connect to my box using SSH, its failing not connecting

From any other PC doing SSH to my Ubuntu 11.10,is failing. My network setup: Telenet ISP (Belgium) > Fiber cable < > RJ45 cable straight > to Ubuntu PC Even the SSH is running: Other PC: ...
5
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1answer
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Ubuntu - saying your security settings have blocked an application from running with an out-of-date version of java

I have this new problem since 2014 begin. I cant remotely login to this enterprise network for giving them support. Its keep showing this new error. How to fix it please? EDIT:
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0answers
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Boot from USB, setup through ssh [duplicate]

I've got a new home server with no keyboard, monitor, etc., but with the ability to boot from USB. I want to install Ubuntu Server on it, but can't work out how. If possible, I want a disk image that ...
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4answers
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How can I make ssh-copy-id use a port other than 22?

How can I make ssh-copy-id use a port other than 22? I tried it with -p but I get: ssh-copy-id -p XXX XXXX@XX.XX.XX.XX Bad port 'umask 077; test -d ~/.ssh || mkdir ~/.ssh ; cat >> ~/.ssh/...