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

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Setup my ssh server, can't connect remotely

I installed openssh-server. I am able to ssh into the server via my ehternet local network, I can ssh from the local host. I have set up port forwarding on my router. I have run 'sudo ufw allow ...
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54 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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19 views

How to do one click VPN, mount, and SSH

I do accessing to my uni shared files a lot and I need SSH to run commands at the uni server, and before I am able to mount I need to first access the uni VPN. I was trying to write a shell batch to ...
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1answer
43 views

ssh pair key authentication problem

I have a problem with public and private key authentication. I do this steps and then, public-key based doesn't work. 1- generate a pair of private and public key (RSA) using the following command: ...
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12 views

Access from a remote server after changing permissions

I have Ubuntu on a linux server remotely hosted using Amazon Web Services. I can normally access is using winscp and a private key I have saved on my Windows computer. However, trying to add data ...
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1answer
332 views

Run Gparted over SSH

I am using a laptop with Ubuntu 14.04 and I started building a Samba server at home I am using Ubuntu-Server 14.04 for this machine. I use Webmin and SSH (depending on the job) to configure my ...
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1answer
23 views

Transfer a ssh session between the same physical devices from one network to another

My server has 2 IP addresses via two networks. Due to some restrictions,my client will be able to access only one of the network at a time. Hence, I want a way to transfer a live ssh session with all ...
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1answer
1k views

Problem with hadoop start-dfs.sh

I installed and configured hadoop on my Ubuntu 14.04 server, virtualized inside of hyper-v, however I am getting an issue when i run start-dfs.sh root@sUbuntu01:/var/log# start-dfs.sh 14/06/04 ...
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313 views

VNC Server Security

First, we need to make sure VNC server only listens on localhost. What is the meaning of this line will it listen remote connection when we onfigure it to listen localhost only? Recommended ...
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101 views

Can local Ubuntu Server display GUI app from remote desktop?

Local machine: Ubuntu Server 12.04 LTS, 32 bits Remote machine: Ubuntu Desktop 12.04 LTS, 32 bits Is it possible to launch Firefox or any other GUI-based applications on the remote desktop machine ...
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36 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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2answers
42 views

Enable to connect to remote server using ssh but i can connect one remote server

When I am connecting to remote server using ip address, I can connect to 192.168.12.141, but I cannot connect to any another remote server. Example: 192.168.12.12, 13, 18 etc... How can I get ...
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43 views

display custom message on failed ssh server login

Is it possible to show a custom message only to users which failed to login into an openssh server? successful login > no message failed login > display message
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70 views

Modify power / sleep setting via command line SSH

I want to change the power management sleep via SSH for a logged in user I set the value sudo -u user dbus-launch --exit-with-session gsettings set org.gnome.settings-daemon.plugins.power ...
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47 views

How to clear the screen on vi exit?

In my experience on many different servers, vi has always cleared the screen when returning to the shell. But on my new Ubuntu VPS, it does not. The contents of the file stay on the screen until new ...
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0answers
64 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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1answer
60 views

Can not clone git repository setup using filesystem permissions but can ssh

I've setup a local git server on Ubuntu 12.04. The repos can be cloned locally on the server, but I can not clone the repo from another server. I can ssh to the server with the same config. ...
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84 views

Best/Cannonical Way to set up ssh-agent on Ubuntu Server?

Unlike Ubuntu Desktop, Ubuntu Server does not come with ssh-agent pre-installed and conveniently set up and running. I see plenty of suggestions on the net how to do it, but is there a best ...
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39 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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1answer
49 views

SSH user client config with host wildcards

I have this in my ~/.ssh/config file: Host jupiter HostName jupiter.engin.x.edu User rob Host *.engin.x.edu User bladex Local user is 'rob' and I want to use the username 'bladex' for every ...
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212 views

problems establishing ssh connection

since two days I am facing a really weird problem. I have receantly installed ubuntu server 14.04 LTS on a workstation. It has a fix IP address, which I can successfully ping from other computers in ...
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1answer
69 views

Trying to set up a social networking website need help! [closed]

I need help. I am trying to set up a social networking website at home just a small local website for right now. I am doing everything on my own. I turned my old 2009 HP desktop into a server, Ubuntu ...
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1answer
951 views

Can't ssh into server, connection refused

I can't ssh into my server. The server is on a private network administrated by me. Ubuntu is version 14.04. This started when I changed to a wired ethernet card. The client is MobaXTerm (latest) ...
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1answer
112 views

14.04 - VPN established but ssh kills it

I have 14.04 LTS installed on my laptop (VMWare image) and I establish a VPN connection to my home. All that works fine, but when I want to use ssh on my laptop the VPN connection dies immediately. ...
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42 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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25 views

ssh connection, using my private key from windows into ubuntu

I'm using ssh connection on windows. I want to use the same connection on ubuntu, so I copied my private key and I pasted it into /root/.ssh But when I'm doing ssh user@server with the terminal, I'm ...
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15 views

remote install ubuntu server back to start?

I got a Ubuntu server where i have root access, i do not have access to it physically. There was a lot of random stuff on it when i got it. How can i install it back to clean, as it was in the ...
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1answer
61 views

SSH behind a NAT enabled router

I have a netgear router, and i installed openssh, now when i try ssh deadman@192.168.0.4 My ssh works fine and i am able to enter to the ssh terminal But when i try it with a remote terminal like ...
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1answer
114 views

SSH Login Display

So I enabled the banner which displays a nice ascii art text for me. Once I enter my password, some system stats come up, my last login info, and this is where the server tells me if there are ...
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1answer
84 views

I'm trying to run an executable file via ssh but its saying “no such file or directory”

I'm trying to run an executable file via ssh. its saying "no such file or directory" but the file exists. What i'm doing wrong? Sorry, i'm a noob with linux root@v-8966:/home/talisman/db# ls -l ...
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365 views

Can't change ssh port (Trusty 14.04)

I've been trying to change my ssh port without success and none of the suggestions I've found did the trick for me. I'm on Trusty 14.04 at Rackspace (upgraded from Precise). This is the sequence of ...
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193 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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3answers
138 views

Error message; [IP]in-addr.arpa has no PTR record: [duplicate]

I'm trying to figure out how to find the hostnames of computers on the LAN network. I put in the known address of a computer, but I'm getting an error I don't understand. ...
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1answer
74 views

Host to Host SSH Tunnel

I want to create a full SSH tunnel between two Ubuntu 12.04 servers, (I found out about SSHuttle but because of a bug in the handling of file descriptors it will crash under high load) very much like ...
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1answer
859 views

How did this exploit allow write access to root owned files?

For a computer security assignment at my university I need to find and understand an exploit that works on ubuntu 10.04. I have already found and tested one on an Ubuntu 10.04 machine (that I own) ...
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37 views

404 on apt-get update [duplicate]

I just did an sudo apt-get update on my Ubuntu 12.04. I wonder how to address the following 404 errors? I am using only PuTTy to connect to my VPS Err http://ppa.launchpad.net precise/main Sources ...
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1answer
311 views

How do I set up a local SOCKS proxy that tunnels traffic through SSH?

Assume I have access to an SSH server that supports tunneling, and I am on a PC that is running *ubuntu, how do I set up a local SOCKS proxy that tunnels the traffic through that SSH server before ...
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8 views

How to connect to an ssh server in order to access files on a LAN PC? [duplicate]

In Trusty (14.04), Nautilus (1:3.10.1-0ubuntu9) no longer gives option in ‘Connect to server’ to specify type e.g. ssh & user/password. What is the workaround, without using the CLI, to connect to ...
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How to enable root access on Ubuntu 14.04

i´d like to enable the ssh root access on Ubuntu 14.04. Editing the /etc/ssh_config (PermitRootLogin yes) didn´t affect anything
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64 views

Xephyr on Ubuntu 14.04 via SSH is buggy?

I tried Xephyr on Ubuntu 12.04.4 via SSH(putty+Xming) X-forwarding running WM(fluxbox, XFCE4), which runs well. However, with Ubuntu 14.04 (server), Xephyr got "Caught signal 11" and quit on the test ...
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2answers
131 views

install ubuntu in a virtualbox vm on ubuntu host through cli (ssh) only?

I just installed a new remote server with ubuntu 14.04, added an SSH server so I can control the server remotely through SSH. No GUI involved. Well, the server has a GUI, but I have no physical access ...
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2answers
126 views

ssh server: allow only login with key

I know, this question has been ask several times. But Im trying to setup a ssh server. I thought the critical setting is that I have to set PasswordAuthentication no. But I already did so and ...
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2answers
99 views

Will an upgrade of Ubuntu to a new LTS change SSH host key

I have recently upgraded my computer from ubuntu 12.04 to 14.04 LTS (in one step). After the upgrade, however, I got well-known warnings like ...
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0answers
266 views

How do I chroot an SSH user to their home directory?

I don't want to use jailkit. My OS is Ubuntu 14.04. I am setting up a user account on my server for a kid I tutor, so he can run a minecraft server. He will be using putty to ssh into my server, and I ...
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1answer
78 views

terminal user and guest account logged into gui interacting with each other

What we have: I want to connect to a remote linux box via ssh with an account with superuser privileges. This linux machine has one current logged in user who is using a GUI on a guest account. ...
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1answer
194 views

Can SSH with IP but not host name?

When I SSH directly to the server's IP address, it works. (ssh michael@10.1.10.129) For reference, here is the resulting prompt: michael@noranetserver:~$ However ssh-ing by name doesn't work like ...
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111 views

Access ubuntu server over VPN

I have remote server(ubuntu server). I access remote server by ssh as ssh root@IP_OF_SERVER, then I have setup a webapp running in server and access it by IP_OF_SERVER:80. Every thing is working fine. ...
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1answer
118 views

Permission denied to to transfer files from remote server

Dear ubuntu community when i Copy the file from remote server (After login in to server from my Home computer) using scp commands as follows scp -v CNTPEPRSOLIONSfullcputest.log root@127.0.0.1:~/ ...
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2answers
642 views

bash: /home/user/.ssh/authorized_keys: No such file or directory

Create a ssh key: Command: ssh-keygen -t rsa –P "" Moving the key to authorized key: Command: cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys bash: /home/user/.ssh/authorized_keys: ...
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159 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 ...