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

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Create FTP account with vsftpd limited to one folder only?

Have a fresh Ubuntu install 14.04 on digital ocean. Just installed vsftpd using this guide: https://help.ubuntu.com/12.04/serverguide/ftp-server.html#vsftpd-userauth-configuration The only things I ...
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59 views

Fresh install of ubuntu SSH only working from localhost

I installed the latest version of ubuntu on ESXi as a VM. I then installed openSSH and it worked once from a remote machine and got hung up when trying to execute a command on mysql. Ever since I ...
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1k views

SSH connection failing since I changed server port number

Yesterday I changed the default ports on the server from 22 to 1993 then restarted but now I can't connect at all. I used ssh -i keyname.pem ubuntu@remotehost to connect then sudo vi ...
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15 views

SFTP Excecute Bit does not seem to be working correctly

I am trying to replace an existing FTP server and switch the users to be using sftp. We have some strict requirements as far as permissions required on the folders. For instance on the user's FTP ...
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64 views

how to change desktop background in ubuntu desktop

I was using gnome desktop environment at the start but i switched to unity environment by install unity shell via this command sudo apt get install Ubuntu-desktop after this I have many issues like ...
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44 views

SSH to cluster under a VPN

My university requires that I connect to VPN, in order to connect to our cluster. I have, after a long struggle, managed to connect to the VPN using the FortiClient VPN command line interface. My ...
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54 views

Server Upgrade an 'end-of-life' Server from ISO over SSH

I have read that it is possible to upgrade ubuntu from an ISO image, but would the same be possible from a remote location over SSH? After mounting the ISO, what command would I use to upgrade? I ask ...
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52 views

ssh, problem with headless device

I have Ubuntu 14.04 installed on a headless device. Since the last update and shutdown it is not possible to connect via ssh anymore. nmap shows the machine is up and in the network, all ports are ...
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1k views

Black screen when accessing Ubuntu remote host via VNC and vino-server

I have a headless server and I am trying to setup a VNC connection in order to access it with a GUI. Now I have only root access via ssh. I have followed most of the instructions given here Enable ...
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371 views

cannot use visual mode GUI through ssh -XY <ip_address>

I am using ubuntu 12.04, and I am trying to ssh to log into a remote server which is also running ubuntu 12.04. I am using "ssh -X ". I can log into the remote server smoothly, but cannot use the ...
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173 views

Moved a VBox guest to a physical host; network is up, but OpenSSH is not. Why?

I've come a cross an issue I really don't understand. I wanted to install Ubuntu Server on a headless box I have. The desktop sits right next to it, and adding and removing disks are very easy, so I ...
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59 views

Is it possible to login into lightdm interactive screen remotely?

I have this big Ubuntu desktop that dubs also as a home cinema PC. When I feel lazy, I'd love to be able to run the PC remotely and watch movies from my bed. I can turn it on via WoL. I can launch ...
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113 views

Reaching a login limit over SSH - How can I open more than 11 sessions?

I have a SSH connection to my Ubuntu VPS. I use it to create a proxy tunnel and it works well. I use Nethogs and "w" command to monitor the traffic. Nothing bad happens until I reach @pts/11. When ...
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61 views

Connecting to Ubuntu host not possible

I have an Ubuntu-Host which is connected via wlan (and for testing to wired net) to a local net. This Ubuntu-Host is not reachable via network by any other clients on the same network. But: If I do a ...
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86 views

'ssh -x -a -oClearAllForwardings=yes' running on my machine

I have a process with the following name: ssh -x -a -oClearAllForwardings=yes -2 user@host -s sftp running on my machine, not for the first time, and I don't remember running such (I have obscured ...
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899 views

pam_systemd delays SSH login - required?

On our Saucy servers (13.10) we are seeing long delays when logging into the systems via SSH. I figured out it is related to the line session optional pam_systemd.so in ...
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831 views

User has no permissions in sftp

I installed LAMP in my Digital Ocean droplet. I have successfully logged in to SFTP. However, when I try to do anything in my /var/www/html/ folder it says permission denied. It may be worth ...
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71 views

Non privileged user launch SSH?

My server got hacked, and as a result the server guys decided that my apache user would be one called 'nonpriv' which has no privileges at all. Before that happened, I had a user that run apache ...
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565 views

Cannot install Openssh-server or client

When I go to install, I get this error: sudo apt-get install openssh-server Reading package lists... Done Building dependency tree Reading state information... Done Some packages could ...
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133 views

ssh dynamic socks server running in the system is not accessible from outside

I have an infrastructure hotspot setup on my Ubuntu machine using ap-hotspot. I connect to this hotspot from my Android phone and am able to access the internet through this. Now, I have a ssh ...
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43 views

Why would SSH ask for password every other day?

So I've been using ssh for quite a while with a server for the company I work with. Since about a month ago ssh keeps asking me for my passphrase for the rsa key, mind you, it does it every other day. ...
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118 views

Desktop's “Connect to Server” function repeatedly asks for SSH password after connecting

I would like to use the "Connect to Server" function (available from the Ubuntu desktop menu) to open a Nautilus window showing the file system of another machine through SSH, since I find it easier ...
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302 views

Backup files and folders on Qnap Ts-421

I have a ubuntu 12.04 desk that I use as a file server, I have a Qnap turbo NAS Ts-421 that I'd like to use as a backup destination. I've enabled smb, nfs, ftp, and ssh and the firmware is the latest ...
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88 views

artillary is not with SSH in ubuntu

I have installed Artillery in Ubuntu 12.04 LTS. I have started artillary and started that service with service artillery start while I am doing netstat -nltp | grep LISTEN why SSH port number ...
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128 views

How to allow multiple users to use the X display?

I got a physical machine running Ubuntu 12.10 server edition along with a X server + Unity. I would like to remotely connect to this machine through SSH to run a graphical application over the remote ...
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47 views

keep track of all logins and logouts

The system is using wtmp to keep track of all logins and logouts to the system. Since the new year, it doesn't keep track for more than a day. For example when I look at all logins I see the ...
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683 views

Not able to connect to Vmware ubuntu using Putty in Windows 7

I have installed Vmware Ubuntu in my Windows 7 PC, with network settings as Bridge connection. I got IP address in Ubuntu as "192.168.1.3" and I am able to ping that IP from my Windows host, but when ...
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124 views

how to quit sshuttle and get system networking back to normal in VBox

I love sshuttle. My new fav toy. But...when i run from the command line and I use ctl-c to quit....my networking is screwed and I have to restart the VM. Using 12.04 Here is how i start from the ...
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176 views

How to ssh tunnel to ec2 for running a local python script

I can create a tunnel for FF using the below on Ubuntu. Machine is 12.04 in a VBox on a mac host. -i ~/.ec2/aws_development_oregon.pem -C2qTnN -D 8080 ubuntu@test.com But..what I need is for my ...
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93 views

Allow users to access specified IPs only

I have a computer that offers both a VPN and a SSH server running three (separated) VPN networks. All users log into the server via ssh. However, I want that only certain users can communicate to ...
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61 views

SSH keys don't work on KDE

I've got my ssh keys working on Gnome and XFCE (using gnome-keyring). However when I switched to KDE, then it doesn't work at all. What's more, even when I start ssh-agent, and add keys, and try to ...
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106 views

Chrooting to a mounted USB Stick using SFTP

I would like to use SFTP over OpenSSH as a small FTP server. However I would like to use a mounted hard drive or USB stick as the chrooted directory for the user. As far as I see, chrooting is ...
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373 views

How To Configure Multiple Virtual Machines As An Internal Network Via SSH

First of all, I am using Windows 7 as a host. Then I install Ubuntu 12.04 Guest under VirtualBox. Then I get an access to the other four virtual machines (also Ubuntu 12.04 Guest) via ssh by running ...
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179 views

pam radius module access-reject

I am trying to set up an Ubuntu server that my users will connect to. I already have a Radius server running on a Windows box, and I would like for connections to this Ubuntu box to authenticate to ...
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92 views

“Service ssh restart” causes server to encounter Kernel panic

I just got my HDD's in my servers raid controller replaced with Intel 520 SSD's. Now after reinstalling the server (with ubuntu server 12.04 and with a newer kernel 3.8.0-29-generic) and installing ...
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153 views

Ubuntu server 13.04 ssh keygen issue

I want to be able to use github and their service hooks to deploy sites and apps to the server. To do this I need to create an ssh key and put the public key into github. I go through the ...
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157 views

How to run openmpi on virtualbox with 3 PCs through SSH?

I have 3 PCs with Vista, running Ubuntu through Virtualbox on them. I have installed openmpi and ssh on them, they are connected via ethernet. The IP addresses are all 10.0.2.15. And I can ping with ...
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810 views

Suddenly cannot access SSH on LAN

I had ssh running on my LAN server. Suddenly (not sure what I did), I cannot access the LAN server via ssh. When I try, it just hangs for a while with no response and finally comes out with a timed ...
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483 views

mount a remote (ssh) usb disk?

My home server has an external USB drive connected. I prefer to keep it unmounted so I don't have to log in if I want to unplug it (for backup rotation). But I'd also like to be able to browse it in ...
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276 views

ssh client times out to some servers, works on others

I have a strange problem and I'm not sure where to begin. My ssh client works on some servers but times out on others. Obviously, I checked that the servers are accessible via ssh from other ...
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608 views

Suddenly cannot SSH into server from LAN, but can from outside LAN?

This is the weirdest problem I've ever had with trying to ssh into a server. Suddenly I can't ssh from my workstation to the server on the LAN. I can do so just fine from home, however. ...
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17 views

shh-add does not find ssh-agent in .profile only

In Ubuntu 14.04 running Nautilus, I want to add a ssh-key without passphrase in my .profile with cd .ssh ssh-add mykey cd .. On (graphical) login, however, I receive a message, that ssh-add cannot ...
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14 views

What remote host allows tunneling thru ssh with public key and password?

I need a virtual desktop that can only be accessed by having the ssh public key and the user password. I was trying remmina but it does not seam to support the dual authentication of public key and ...
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8 views

Set up BOINC through SSH and configure for multiple computers

I want to set up BOINC for SETI@home or other distributed computing projects. I have three or four computers with Lubuntu, but I would like to set them all up through a script instead of ...
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7 views

Why am I getting permission denied (error 3) in WinSCP when I'm the only user and it's my home server?

I just setup a Linux home server using this guide http://linuxhomeserverguide.com/ and I am now trying to write to my /var/www/html folder because I want to make a website. I forwarded port 80 and ...
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What systems/remote desktops allow remote unlocking and locking

I have a very good desktop running ubuntu 15.04. I have a 2gb chromebook for developing on the go. The chromebook is not powerful enough to do what I need, so I need to be able to unlock my pc ...
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How to check if a switch is configured in 'ssh' or in 'telnet' using perl script provided the switch IP is available…?

In a perl script, when a switch IP is available, it is required to know if the switch is configured for 'ssh' or 'telnet' for continuing execution. How can this be done..? Please help it...
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Can't boot Ubuntu after 'reboot now'

I was connected to one of my servers via SSH when in the local PC I did reboot now. Since then I can't boot Ubuntu on the server nor connect via SSH from the local PC. I read that reboot now is not ...
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25 views

EC2 - chmod: cannot access ‘mypemfile.pem’: No such file or directory

I download pem file while launching t2.small instance. When I try to connect it via ssh it say no such a file in directory. But am sure that pem file is in directory. $ ls mypemfile.pem ...
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ssh stalls at debug1: SSH2_MSG_KEXINIT sent

So I try 'ssh -v server' and it stalls at: debug1: SSH2_MSG_KEXINIT sent which seems to be because the destination is not accepting my connection? I can ping the server though! (I do $ping host_ip) ...