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

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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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36 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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21 views

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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28 views

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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31 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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16 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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15 views

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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60 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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48 views

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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95 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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29 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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23 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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17 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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113 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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44 views

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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43 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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49 views

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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69 views

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 ...
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130 views

Rsync creates error message unexplained error (code 255) at io.c(837)

When I try to rsync -qaPH source/ 192.168.1.21:/var/backups I get rsync: [sender] write error: Broken pipe (32) rsync error: unexplained error (code 255) at io.c(837) [sender=3.1.0] Whats wrong ...
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44 views

How to run job with access to ssh passphrase

I have a long-running daemon (unison file monitor) that I want to have running at all times. This daemon connects to a remote server through ssh and maintains a local directory synced with a remote ...
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23 views

sshuttle consumes all resources

I use sshuttle to forward my TCP traffic through a ssh tunnel with the following command sshuttle --no-latency-control -HDr user@server 0/0 -l 0.0.0.0 but after a while sshuttle (python) uses all ...
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52 views

scp get connection closed to remote server while ssh did fine

when i ran scp on centOS having openssh_4.3p2 it worked fine,but under environment below, when i run scp it fails like 'Connection closed by aaa.bbb.ccc.ddd' host : ubuntu 12.04, openssh_5.9p1 ...
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50 views

Login kickout every time in Ubuntu Server 14.04 LTS

We have installed Ubuntu 14.04 LTS in our production servers. Our Dedicated server disk was filled, due to that issue one of the production server stopped. While troubleshooting i found that disk was ...
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11 views

Forwarding, redirection, between 3 machines

I have this structure: A: machine not in the domain of our company. B: machine in our company (with an application server) C: my machine So the communication has been enabled to interact only ...
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33 views

How to disable X11 forwarding

When I am logged into a mainframe unix machine I see the following error message when I run certain commands: KiTTY X11 proxy: wrong authorisation protocol attempted When I log in using ssh -v ...
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89 views

ssh-agent doesn't store passphrase between remote logins

I am trying to get my git repositories on my office computer to connect to my Bitbucket account via ssh. I've generated the key and uploaded the public key. I also did the following: eval $(ssh-agent ...
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35 views

SSH PC at office from home

My office has one default gateway and behind that is a local network with locally assigned IP addresses to all computers including mine. I hold admin in my Ubuntu installed office PC and is it ...
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26 views

What is wrong with knockd?

I am trying to implement port knocking for ssh service on my personal server. I have two other public services that will always be open. My iptables rules look like this: Chain INPUT (policy DROP 0 ...
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77 views

Ubunutu 14.04 can't access via SSH\HTTPS

I can't seem to access my ubuntu 14.04 server via SSH or HTTPS recently. Not sure what changed. I'm still able to access it via http. I tried reinstalling the ssh server and regenarating a new rsa ...
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29 views

Web Based SSH Client That Supports Google Authenticator

Does anyone know of a web-based SSH client that supports Google Authenticator? ShellInABox does not seem to at this time.
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18 views

Ssh identities lost after reboot

I have a few private keys in my ~/.ssh/ folder: /home/christophe/.ssh ├── begijnhofserver ├── bitbucket ├── config ├── github └── known_hosts Now, when I try to ssh git@github.com I get an error: ...
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24 views

Many CRONs processes

My system from couple days have some strange issues. Main thing is that I can't ssh for most of my day. I noticed that is connected with amount of CRON porcesses. In crontab I have about 90 records ...
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98 views

14.04: Nautilus and mounted SMB-Drives/SFTP/SSH-Connections

What's the thing about Nautilus and mounted SMB-Drives/SFTP/SSH-connections? Everything works fine until I close nautilus. Most of the time reopening nautilus takes forever and I can't find a reason ...
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27 views

Xubuntu SSH/SCP/SFTP to a VM as a folder

I'm really hoping you guys can help me out with this situation. I've done it many times before on other distributions (centos) where it was as easy as having the file manager opened and selecting to ...
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34 views

lftp-mirror directories

I am trying to mirror directories between two computers using lftp. When lftp 'ssh's' into the other computer, commands: lftp host then user 'username', and I use the ls command I just get 'ls' at 0 ...
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92 views

Connecting ALIX 6F2 through USB serial port, putty displays nothing

Please help me connect ALIX with my laptop through a serial port to usb converter. Has anyone ever tried it? Do suggest if there is some different approach. My OS: UBUNTU 12.04 Using Device : ALIX ...
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40 views

Start phablet-shell connection to Ubuntu Phone

I see in a few places [1,2,3] that I can securely connect from my Ubuntu desktop to my Ubuntu phone using the command phablet-shell from the phablet-tools package. Yet, from a terminal on my desktop, ...
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35 views

Why ssh is refusing connection?

I am executing the following commands to add the gerrit public key (master and slave) in the ~/.ssh/known_hosts. ssh-keyscan -p 29418 <HOST_NAME> >> ~/.ssh/known_hosts ssh-keyscan -p ...
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26 views

Encrypted home mount for single session on Ubuntu?

I currently have Ubuntu 12.04 as my remote server and I have a purpose of keeping my important files on that server under encrypted home folder. I did this and it works; I send my files to the server ...
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75 views

How to SFTP Jail (chroot) with Active Directory authentication

I am try to set up SFTP with Ubuntu 14.04 using chroot with AD authentication restricting by Group as well as having a public area for users. I already have samba, winbind and kerberos setup as a ...
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53 views

SSH connection refused after reconnect for short period of time (EC2 AWS)

If I haven't connected via SSH to one of my EC2 Ubuntu instances I can connect straight away, but if I disconnect and reconnect quickly I get a connection refused message and I have to wait a few ...
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15 views

Is there a way to have a user account to have different user password and ssh password?

I am connecting to an Ubuntu 14.04 server through SSH using a sudo user with a randomly generated password (very lengthy). Of course running a command with sudo requires me to enter that lenghly ...
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33 views

ssh error into different ubuntu account permission denied

I have two instances of ubuntu installed on my VirtualBox. First instance name is aks@aks-VirtualBox and the second instance name is erica@HBMaster. Now when I try to ssh from first instance to 2nd ...
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62 views

What is missing in my webserver ufw firewall configuration?

sudo ufw enable sudo ufw logging on sudo ufw allow proto tcp from any to any port 9999 sudo ufw allow proto udp from any to any port 9999 sudo ufw allow 80 sudo ufw app apache sudo ufw app OpenSSH ...
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59 views

ck-list-sessions remains empty after a log in, loginctl works right, what could stop polkit-1 from working?

A while back (upgrade to 13.04 if I'm correct) the polkit-1 I had on a couple of computer stop working (right). Before, I could log in as admin via SSH and the X11 users could not log out (they would ...
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88 views

How do I unlock my SSH keys on login in Ubuntu Server?

I'm making a new server that will pull backups from multiple sources on a schedule, so I'd like it to connect via SSH using a key. Setting this up in Ubuntu 14.04 Desktop is trivial, you write the ...
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50 views

Can't connect to SSH with new user

I created a new user, test. I have done the following to the account: I've given test sudo permission I've added test to AllowUsers in nano /etc/ssh/sshd_config I've generated a new SSH key pair, ...
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15 views

How to sync using port forwarding

I have my home computer A and a work computer C that I want to synchronise using unison. In the middle is a work computer B. A can communicate with B and B can communicate with C directly but A and C ...
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32 views

Can't start firefox on remote server without crashing X on local host

Running: Ubuntu 13.10 The situation is the following: I log in to the remote server with ssh -X user@remote and that is fine. However, once logged in, I type firefox it crashes the local X-session. ...
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106 views

Cannot find google chrome terminal command

I'm connecting to my machine at the university using the ssh - X command. I want to launch google chrome from my terminal in order to get access to some website only available through my university's ...