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

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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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134 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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“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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Why this upstart job is preventing lightdm from shutdown or restart my notebook?

in order to have a permanet ssh tunnel running I set up the following upstart job in /etc/init/ssh-tunnel.conf: # ssh tunnel - simple personal ssh tunnel description "simple personal ssh tunnel" ...
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516 views

fail2ban block retry count always changes

As title mentions clearly, fail2ban block retry count always changes. I set all retry counts to 3; but sometimes it blocks me after 6 or 7 retries. How can set its behavior a constant value? I added ...
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Nx Client Windows

I have NX Client installed on my Windows 7 and Ubuntu 13.04 systems. Settings for NXClient in Windows: Correct Ip/port Desktop: GNOME Display Available Area My Ubuntu 13.04 system with NXClient is ...
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197 views

Invalid host for ssh forwarding: ssh : could not resolved host name ubuntuN1.master: name or service not found

I installed ubuntu 12.04 LTS MAAS Server on VMWare Workstation 6.5. The Ip address is 192.168.43.191 and Web UI, maas-dhcp and maas-dns are ready. I added 2 nodes via VMWare and all were in ready ...
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Force lease renew for leases in /var/lib/misc/dnsmasq.leases

I have a Raspberry Pi connected to my laptop (running 13.04 with Gnome) via direct ethernet using these instructions. Normally, the RPi will connect and work just fine. However, if I disconnect the ...
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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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263 views

connecting through a proxy, ssh Could not resolve hostname

I need to connect with a server of my company. I'm behind a proxy, and my browser have the proxy configured. From my browser, I can reach this server. But with ssh I cannot contact with this server, ...
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248 views

Ad Hoc Network IP Issue

I'm trying to set up an ad hoc network between an ARTiGO a1000 system (running ubuntu 11.10) and my computer (running mac os x), and I can't seem to get the connection working. I've tried setting up ...
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133 views

How do I setup Network Manager and VPN on Ubuntu Server with VNC/XFCE4?

I have an Amazon EC2 Micro Instance that I use for semi-anonymous web browsing, but just to be safe, I would like to use Network Manager to setup a VPN. When I login to VNC and try to use Network ...
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312 views

Remote initialization of pulseaudio devices

I am administrating remotely a Ubuntu 12.04 which was originally installed as a desktop machine. I am away from home, so I want to use SSH in order to let my sound card to get access to a USB radio ...
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137 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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753 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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440 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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1k views

Reverse SSH Tunnel Issue

I'm working on setting up an unattended Ubuntu PC with Ubuntu Server 12.04 Minimal, and since this PC will be placed in a remote location with no keyboard or screen (unattended), I need to have a ...
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222 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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555 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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SSH: after reboot, Connection refused

SO weird ! i never touched sshd_config , all ports open 22,80,443 , ssh status say ssh server running , i had all worked before reboot perfect , now its all dead i can't enter site , ssh , SFTP ...
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How to install SSH on 14.04 ubuntu

So my soul purpose to wanting to do this, is so i can access my desktop from work. So i am trying to install SSH into my machine. If anyone can give me the step by step on how to proceed with that ...
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5 views

Is there anyway to show VirtualMachine after start it with VBoxHeadless?

I've installed a VirtualMachine to work on the background. I use SSH to control it via terminal. But, sometimes SSH service didn't work properly and I can't access the VirtualMachine outside. All I ...
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“Permission denied, please try again.” ERROR when trying to connect to localhost through ssh

I know this problem has been discussed several times in the forum but none of the steps recommended to remedy the problem have worked in my case. In the following I will describe again the problem ...
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monitor network connectivity faults?

I am suffering poor connectivity when i work at home. Frequently I see write failed broken pipe and other errors indicating that Ive lost connection. I would like to complain to my service provider, ...
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28 views

Can't SSH into Ubuntu server

Appreciate thoughts on how to debug this situation: built a headless box with Ubuntu server 14.04.1 LTS, and installed Plex and SSH server. For several months, everything was running fine, but in the ...
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12 views

NX Client for Linux connection timeout

I have a problem during connection with NX Client for Linux. I am using Ubuntu and when I try to connect I get a message after some time which says Connection timeout. I checked the connection with ...
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8 views

How to bring all ClusterSSH windows to the front?

Is there a way to bring all the windows of a ClusterSSH session to the front? After a while entropy builds up and some windows end up minimized, others end up behind other windows, and so on. ...
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60 views

SSH using Terminal / Terminator is “very” Slow (at the connecting time) Compared to putty

i searched in all stackexchange website, the same question is asked few time and I did all that mentioned in those threads...but still when doing a SSH to a remote server using terminal during the ...
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22 views

OpenMpi cluster in Ubuntu 14.04 LTS

I have setup the clsuter as per the guidelines and steps provided on the link https://help.ubuntu.com/community/MpichCluster I am able to login (without entering password) from mater to slave as well ...
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26 views

SSH key stopped working on Ubuntu Azure VPS

I have an Ubuntu instance that I'm running on Azure. I've been using it for the last 6 months or so to level up my novice Linux admin skills. Yesterday I was configuring a Capistrano deployment to ...
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12 views

Strange entry in open file list on Ubuntu server

On my Ubuntu server I occasionally run the following command to view any open files that are TCP connections from my server: lsof -uroot | grep 104.236.XX.XXX The last time I ran it, I saw this as ...
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37 views

Thunar can't mount server over SSH

I am trying to mount a server directory in Thunar on a computer running Xubuntu which I'm connected to over SSH with X forwarding enabled. I connect to the computer with ssh -YC username@computer.ip ...
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19 views

How to resolve failed PAM radius authentications for local account?

I have a local account which is not set up for radius on my 14.04 server, then I have multiple radius accounts. The local account is used for automatic file transfers from network devices and creates ...
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SSH X windows pipe error message

SSH X windows pipe is successful in displaying a calculator first time out, not satisfied by this I am curious to know what this error message is trying to tell me. ** (gcalctool:3556): WARNING **: ...
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ubiquity equivalent in text mode?

Is there an ubiquity equivalent in text mode? Launching an alternate installation from DVD is not a solution for me. This is because the computer has been booted with a customized DVD (with an ...
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19 views

ssh connection refused only after inactivity

I have a Virtual Machine running 14.04 server and I've configured everything so I can ssh in. I can boot the machine and then ssh in using ssh -p 3022 adrian@localhost just fine. However, if I leave ...
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13 views

How to disable all messages from SSH

I have three computers networked through Gigolo/OpenSSH and set up to auto-connect as soon as I log into x-windows. The setup works just fine, but sometimes one computer will have some downtime or ...
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SSH Via Flash Drive

I updated Ubuntu and when it came back up it had some error about Grub and then it said it was in recovery mode. I followed instructions online to get things back like linux and normal but it could ...
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46 views

File permission problems with vsftpd and filezilla

I am having the same difficulty as others have had with vsftpd. I have read the posts but cant figure out how to fix this. When I use Filezilla to upload a file to an ubuntu server, I get: Response: ...
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78 views

Error connecting Qt Cretaor to Raspberry Pi using ssh

I have generated a image for the raspberry pi board using buildroot 2014.11, but while connecting Qt Creator via ssh to raspberry pi board it shows the following error. Connecting to host… SSH ...
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problem editing sshd_config

We currently have a vulnerability in SSH (Ubuntu Server 10.04) that requires us to remove MD5 and RC4 from SSH, we did it correctly in 4 servers, but when we edit it on one server in particular and ...
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65 views

My ssh server stop accepting public keys after an upgrade

I know this has been asked 100 times but I tried the answers in other places (including changing permission of my ~/ssh directory) and I couldn't find a method to solve the problem. Background: my ssh ...
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26 views

ssh connection problem

Hi everyone i am developing a robotic app, i want to run my launch files under a ssh connection with this script but when i run script it wants may password, i write it but nothing happens although i ...
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18 views

Unable to set env var for ssh key-based login

I have a ssh key based login and I cannot see env variables that I set in : .bashrc, .profile, /etc/profile.d/setup-my-env.sh export PATH=$PATH:$HOME/opt/openmpi/bin export ...
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12 views

How do I setup connectbot to access files from ubuntu and vice versa?

I am using ssh to transfer files between all my home computers and want to be able to do the same with my android phone and was told that connectbot is the way to go. The problem is I have no idea ...
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75 views

How to setup TightVNC reverse remote through SSH Tunnel?

The simple and secure way to setup TightVNC reverse connection through SSH Tunnel between Ubuntu(Viewer) and Windows(Server)?
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How to setup TighVNC reverse connection through SSH Tunnel between two PCes over the Internet?

How can I get the most secure and simplest way to setup a secure reverse connection with TightVNC (or ...) from PC1 to PC2 over the Internet with these specifications? PC1: VNC_Client(Admin, Viewer): ...
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37 views

Can't reach my server from another network

setting up my own server lead me to a problem, that i can't solve on my own. My server is a 'Ubuntu-server 14.04.1' and is located behind a 'FR!TZBox 7390'. My ipv4-adress is projected on a ...
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Access GUI in Ubuntu 14.04 LTS Minimal through SSH

I followed the steps from this website: Everything works fine until I use startx command. It shows me the error in the picture below: It give me error about xf860console: cannot find a free VT: ...
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Establishing an ssh connection between 2 computers using a VPN

This is my setup. I have a mac that is running parallels 10. Inside parallels I am running an ubuntu VM 12.04. Now i need to be able to connect to other remote ubuntu computers with an ssh. I have ...