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

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Apache no longer starts (AH02238: Unable to configure RSA server private key)

My Apache Server no longer starts. Checking the log shows that: [Fri Apr 24 18:05:01.342667 2015] [ssl:emerg] [pid 21220] AH02238: Unable to configure RSA server private key [Fri Apr 24 ...
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1answer
20 views

The safest way to backup GPG and SSH keys

I have, in Ubuntu 14.10, generated a public and private GPG and SSH key set, but I am now needing to do a fresh install and don't want to lose them but don't just want to put them as text files on a ...
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14 views

Sublime Command not working in SSH server on Ubuntu 14.04? [duplicate]

I want sublime text editor open via sublime command, i've all ok for install sublime text 2, but when type sublime in terminal then showing me error, see below, anyone know how i can fix this ? ...
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23 views

Trying to ssh into virtualbox static ip ubuntu from debian host

So, I messed with my /etc/network/interface and assigned the different addresses basically blindfolded. I can't even ping google, and really don't know what my addresses should be. This file ...
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1answer
25 views

How to prevent specific IP addresses from even connecting to my dedicated server [duplicate]

I've been using this site for Ubuntu-related help for quite some time now, since I own two dedicated servers that run Ubuntu 12.04, which I run gameservers on. Recently, I discovered the wonders of ...
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Share internet connection to distribute ubuntu nodes sitting behind master

I'm working on setting up a 20 node distributed system. The data nodes are hp Compaq 6500 pc's running Ubuntu 12.4.5. The master is connected to the internet and I've configured the IP's of the nodes ...
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How to keep cluster systems in sync

I am wanting my devices on my cluster which all have the exact same specs (Raspberry Pis) to completely be in permanent sync. I have been thinking of using a cron along with an rsync but I am not ...
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7 views

Create a jumpbox menu

I am looking to create a menu on a network jumpbox I have ~200 servers that I connect to and I do not want to have a CRT session for each of them. I want the menu to be searchable so I can hit "/" ...
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2answers
28 views

Is there an SSH client which duplicates commands to multiple terminals?

I'd like to control several ssh connections from one terminal. For example, I would type ifconfig in the main terminal and all the other ssh connections would run ifconfig. That's what offered PuttyCM ...
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8 views

How to handle disk encryption for remote connection?

I have at my workstation, an ubuntu 14.04 installation with full disk encryption. I now have to travel frequently for days and am planning to ssh into this machine from my chromebook to work remotely. ...
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Complete walk through on creating a new user +Key if nessecary

I am very new to all of this. I use PuTTY to access my WHM Minecraft server without any issue as root. I want to make a new account, I have googled for 2 days and nothing is working. ...
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1answer
45 views

Unable to run applications with GUI through x11 forwarding

I have Ubuntu server 14.04 on which i want to run applications with GUI. I have Xauth installed and i have edited the files ssh_config and sshd_config to allow X11 forwarding. On my PC I have Windows ...
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Ssh Permission denied (publickey,password)

I have found very similar questions like this, but they did not solve my problem. This is the output of ssh -v localhost: OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data ...
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ssh: connect to host github.com port 22: Connection refused

So I followed the guide on how to add a SSH key to GitHub, and added a new SSH key with a passphrase to GitHub and the SSH agent. Now, if I run ssh -T git@github.com as described in the guide to test ...
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2answers
32 views

SSH and SFTP Permission Setup

I'm trying to setup SFTP on my ubuntu server and I'm encountering a problem. When I set up a group in sshd_config file to chroot people to their home directories the user in the group cannot access ...
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30 views

How to connect to a LXC container from the LAN?

I have a server with the latest Ubuntu server 64-bit install in my home wlan. I use ssh to connect to it from my laptop. The server /etc/network/interfaces file: # The loopback network interface ...
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1answer
42 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
34 views

how to set socks5 proxy in the terminal

I am a beginner using linux, I would like to connecting the terminal to the local proxy socks made by my ssh (Dynamic Port Forwarding), so is there a way to set up a proxy socks5 in the terminal? or ...
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1answer
22 views

How to add new private key (OpenSSH) with multiple identities?

I have generated pair of both public and private key for one remote host. Now I want to add another private key in open format to connect via ssh to second remote host, but ssh denies connection with ...
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2answers
48 views

Forward Internet connection over ssh to remote computer

I'm struggling to access the internet from my remote computer. I'd like to access the remote computer via ssh and have there the internet connection available to install packages etc. It looks like ...
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1answer
34 views

Different shells on SSH and local

So I've got an Ubuntu 14.04.2 computer that has OpenSSH Server installed on it. Whenever I use the computer locally, through the terminal, if I run: ~$ echo $SHELL /bin/bash However, if I SSH into ...
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26 views

unwanted popup for passphrase

When connecting using ssh I am not asked for the key passphrase in the terminal but in a popup window. How can I switch to typing the phrase in the terminal? As this seems connected to the ...
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After “sudo update-rc.d ssh defaults” cannot connect through SSH even locahost

On this question here, Start ssh server on boot simple, he gave one command to use, followed what he said, did it, and now, without touching or restarting or anything, I could no longer connect to my ...
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2answers
32 views

Was my SSH server compromised? If so, how, and what steps should I take?

I recently enabled ssh access to my machine to work on a group project with my classmates. I read the guide for setting up ssh on ubuntu and tried to follow good security practices. I disabled ...
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3answers
56 views

Get current ssh session's originating IP without being superuser

I am trying to find out the current ssh session's originating IP address. I found the following to be useful, but it requires sudo: $ sudo netstat -tapen | grep ssh | awk '{ print $5}' | sed ...
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30 views

Connecting to VPN server closes SSH tunnel

Once I start to connect the VPN, I immediately lose the connection to my dedi-server. My aim is to still be able to ssh to my dedi-server, even if I connect to the external VPN server with my ...
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29 views

How to set up an old PC to run a gaming server and have people connect it?

For starters, I am extremely new to the ubuntu community and even with UNIX itself... I have managed to wipe an old gaming computer, stack it with some ram, install ubuntu desktop 14.04, and from ...
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2answers
129 views

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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Why can't I connect to my localhost port from a remote computer?

I'm using link-grammar server to convert sentences into semantic graphs. It provides an API though a port to do the above process. It's configured to works through port 9000 of localhost. I used to ...
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3answers
74 views

SSH connection refused from specific location only

Me and my girlfriend share a Ubuntu server I set up for different stuff. Lately however, she has been experiencing a problem that has me, her, and both of our respective colleagues confounded and ...
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1answer
25 views

Cloud Image SSH Login

I am using OpenStack and when I attempt to login to Ubuntu QCOW2 image it just times out. I can ping the instance, and I can telnet the SSH port without an issue (telnet <floating ip> 22) so I ...
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1answer
35 views

Why is this odd file extension appearing when I scp a file?

I'm creating a large number of gifs and copying them to a separate computer with a webserver folder mounted via sshfs. For some reason the files will randomly copy with *.gif.001 file extensions. My ...
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1answer
35 views

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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Problem running ufw on Ubuntu 14.04 server

ufw is supposed to be the easy firewall for Ubuntu, but I seem to still having missed something. After a fresh install on my 14.04 server, and leaving it default, the terminal will freeze after ...
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Install Ubuntu on Local Network? [duplicate]

I have a Mac OS X machine and a Linux box both on the same local network. I can ssh into both and launch apps using ssh -X. My question is this: Can I remotely boot the Ubuntu installer located on ...
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1answer
40 views

host ubuntu and guest Windows access each other from command line?

My host OS is Ubuntu 14.04, and guest is Windows 8.1 running in a virtual machine by VirtualBox. Is it possible to access the guest Windows from host Ubuntu from Ubuntu's bash? access the host ...
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71 views

Host to Guest one way connection issue

I have guest run on my machine on qemu with configuration: /usr/local/kvm/bin/qemu-system-x86_64 -enable-kvm -cpu host -smp 8 -hda ${TEST_VIRT_ENV_IMAGE} -m 4096 -netdev user,id=user.0 -device ...
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1answer
27 views

Keychain does not work in Cron

I have a problem with my backup script which is using keychain. The script works fine when fired via command line but doesn't work as expected when called via cron (does not transfer any data to the ...
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1answer
45 views

Creating new user, how to run commands after SSH login? (Ubuntu Server Trusty)

I have configured Ubuntu Server for my needs, and basically everything is working as I want. I'm new to Linux, but learned a lot using and interpreting different guides, however, this particular ...
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2answers
39 views

when ssh is run with a server + command argument, what startup profile runs if any?

I know /etc/profile and ~/.profile are among the start-up scripts used when ssh is used to login to a server – i. e. using ssh with server argument. However, the scenario where I am just using ssh ...
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2answers
35 views

How to run an application on a headless Ubuntu? [duplicate]

I have an Intel NUC running 3.13.11.6; and I have written an application that runs some simple data polling (cpu, memory usage, disk usage etc ...). The NUC is headless, so I connect via SSH (putty) ...
2
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1answer
50 views

Automatic User Creation for SSH Server?

I'm trying to setup an SSH server which, upon an attempted connection with the correct public key, will create a new user account if one does not exist. On connection I'd like a specific script to ...
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1answer
36 views

is there any way to change ssh or vnc config using ftp?

I have a remote server which I can't access physically, for the last couple of weeks I could connect to it using both FTP protocol and VNC remote desktop. I changed the "Desktop Sharing" Program in ...
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SSH outside the local network

I have Ubuntu 14.04 LTS installed on a Toshiba Satellite L655. I've recently installed an SSH server on the machine and it works fine when connecting to it using 192.168.1.3 but when I try that using ...
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0answers
17 views

Start a local session, remotely [duplicate]

I dont want to enable auto login for various reasons. Is it possible to login to the desktop, from an ssh session, in order to then VNC into the desktop ? The issue is that I remotely turn on/off my ...
0
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2answers
44 views

Simplest way to set up new user with SSH access on remote host, given root access

I am writing a tutorial on setting up Ceph the hard way, shell all the way. I am not happy with the number of ssh commands it takes to connect to a remote host as root, create new user, then scp keys ...
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1answer
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How to get rid of “The authenticity of host 'bazaar.launchpad.net (91.189.95.84)' can't be established.”

I have seen the response when ever I ssh to a server for the first time. After I give yes, it is never asked again. My question is, is there a way to solve this ? I mean I am expecting, from the very ...
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31 views

Ssh outside network

I would like to setup an ssh server that I can access over the internet. I have forwarded the port 22 and I can connect over the internet on my local network, but as soon as I leave it it becomes ...
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1answer
30 views

User Home directory encryption - files that must remain un-encrypted like authorized_keys

Before we get to far, my question is: If this is the wrong way, or I'm doing it wrong, what is the right way? Pursuant to this howto: https://help.ubuntu.com/community/EncryptedHome So I see this ...
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0answers
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How can i enable user to have reboot privileges without sudo? [duplicate]

How can i enable user to have reboot privileges without sudo? Need to keep sudo password enabled. ssh user@server "sudo reboot" does not work because it requires a password to be entered. Want ...