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

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Home directory permissions preventing ssh key authentication on Ubuntu Server 14.10

I have ubuntu server 14.10 with an SSH server on it, and have password authentication working fine from my System76 darter laptop running Debian Sid. I want to switch to rsa-key authentication. On ...
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3k views

ping: unknown host

Since few days, my dedicated server (Ubuntu 13.04) is no longer able to ping or connect to my NAS through DNS (hostname -> kr1.synology.me ) . The IP address ( 178.83.88.248 ) address against , is ...
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1answer
217 views

Can't get SSH to work

I tried to set up an ssh connection using an RSA key but I can't get it working. My permissions are ok, I set in the sshd_configfile that it has to use a public key for authentication, I of course ...
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1answer
71 views

Unable to connect to Snappy Ubuntu Core via ssh

I have installed the Snappy Ubuntu Core alpha using KVM, but cannot connect to it using SSH. SSH returns ssh_exchange_identification: read: Connection reset by peer, which seems like a server-side ...
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1answer
77 views

SSH allow windows AD groups(with Special charactors)

I have join my linux to windows domain succesfully, and now everyone in the domain could able to login to the server by using ssh. But we only want to restrict certain users from a group to login. ...
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1answer
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Jailkit freezing

I'm trying to jail ssh users on my Ubuntu 14.04 server. So after installing Jailkit version 2.17 (with the help of this tutorial) I'm now trying to follow this AskUbuntu answer to use Jailkit. After ...
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SSH Tunnel can't connect through existing tunnel — chanel3: open failed: administratively prohibited

I am following this tutorial and I have gotten past the part where I create a tunnel from my local computer (Host B) to a remote computer (Host A) with ssh -L 19922:HostA:22 HostA however, when I ...
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1answer
4k views

Cannot establish ssh connection to computer on local network

I've just (re)installed ubuntu 11.10 on my main pc, and the connection times out every time I try to ssh connect to my laptop (over the local network) to retrieve the files I backed up there. The ...
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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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2answers
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Why can't I interact with my ssh-agent? (e.g. ssh-add -D doesn't work)

On my Kubuntu 14.04 system I'm trying to manage keys with my SSH agent, but somehow it appears to ignore my ssh-add commands. Look at this below and you'll see what I mean. List the current keys ⟫ ...
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2answers
6k views

How to avoid typing ssh-add everytime

I read and followed some online documentation on how to set up a ssh-agent so that I don't need to type in password every time I ssh to a remote machine. However, with the help of ssh-agent, I still ...
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1answer
18 views

IDE for Symfony (PHP) which is able to manage Vagrant VM's over SSH

I just switched from Windows to Ubuntu on my dev Laptop. Now I'm wondering, what's the best IDE to use on Ubuntu when working with PHP? I know there are a lot of threads here about exactly that thing, ...
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1answer
62 views

How do I disable gnome-keyring ssh integration?

I don't want gnome-keyring to get in the way of my git commits, partially because it locks the entire screen while asking for a password, even on KDE (though I have now switched to GNOME). While I do ...
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1answer
17 views

How to connect remotely to WD Book Live Duo using nfs?

Connection in local network works perfect. I use nfs://192.168.0.10/nfs to connect locally. If I connect from internet I use static IP: nfs://xxx.xxx.xxx.xxx/nfs In this case it doesn't work and ...
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2answers
73 views

ping command in bash shows heart character

Why am I seeing a heart ♥ after the ping command? I'm running the command below over an ssh connection in ConEmu, if that changes anything. Is this expected or have I been hacked in some fashion? ...
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2answers
82 views

ssh port-forwarding through a server

In order to access to my pc at work i do: ssh -AY myusername@server_of_the_company and then: ssh -AY myusername_at_my_pc@ip_address_of_my_pc I read about ssh tunnelling but i cannot make it ...
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Establish reverse ssh tunnel at OS startup / network connection up [migrated]

I'm trying to setup a reverse SSH tunnel using a middle-man, due to firewall restrictions. I took the following steps: from ssh server do reverse tunnel: ssh -R 8080:localhost:22 ...
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1answer
88 views
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Check which SSH key was used to login

So stupidly enough in our development team every individual SSH Key is used to access the root user directly. When Checking the auth.log i can find this Dec 18 09:45:04 webserver sshd[12377]: ...
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1answer
474 views

How to start/configure pulseaudio remotely with ssh?

I have a remote machine to which I can ssh. On the remote machine there is a program that uses pulse audio to get input from a USB microphone attached to the remote machine. This setup works fine when ...
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28 views

how to set up a connection without using ssh

hey^^ currently I'm having a problem with a compute who has ubuntu installed on it, so I wanted to use putty and get remote access. Sadly the computer is a bit of a pain in the ass and not able to ...
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2answers
216 views

/var/log suspicious entries

For fun I tailed /var/log/auth.log (tail auth.log) and there were many of the following: sshd[16225]: Received disconnect from 203.100.83.32: 11: Bye Bye [preauth] The ip appears to be from ...
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16 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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1answer
39 views

Ubuntu UI Toolkit's interaction with my device fails due to SSH protocol capabilities mismatch

Testing my device's (nexus 4 running latest from devel-prosed) connection from SDK->Options->Devices->Test I get: Connecting to host... SSH connection failure: SSH Protocol error: Server and client ...
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1answer
25 views

Password for ssh

Hey guys am realy new in ubuntu. am trying to connect my machine to one of the remote system. Both are running on ubuntu operating system. I have tried connecting to the remote system like ssh ...
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1answer
5k views

Why does the host key verification fail in “connect to server” utility?

I am able to use ssh from terminal but I am not able to use it from "connect to Server.." utility. it is showing the error in the dialog box as below: Cannot display location ...
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3answers
66 views

openssh: Permission denied

I am new to ubuntu and just started to configure my first ubuntu server. The problem is with openssh. I made openssh server using tasksel. Forwarded port 22 on router to Server IP. In the local ...
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2answers
4k views

How do I get SSH server to work with putty client?

I have an Ubuntu 12.04.01 desktop PC, 64-bit. It has openssh-server installed. When I SSH to the server from a linux box it works. But when I use PuTTY from my Windows 7 PC to connect then I just get ...
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0answers
64 views

How to change my home directory?

I have a current /home/user/ directory for ~ but I want to change it to be at /user/home/ /user/home already exists. The option of using usermod is not going to work because I don't have access to ...
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28 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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1answer
7k views

Switch Desktop Environment from Command Line

I have Ubuntu Gnome installed on a headless box. I use SSH or VNC to connect to it. I'm trying to switch to XFCE and I've got it installed, but the tutorials say to log out, and select the desktop ...
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14 views

Can't SSH into Ubuntu Touch device

From my computer: cameron@cameron-ubuntu:~$ ssh phablet@192.168.99.124 Permission denied (publickey). So it seems that openssh on the phone doesn't have password authentication enabled. But it ...
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38 views

Managing remote server connections via Nautilus

Is there any way to manage remote server credentials while using Nautilus remote server connect feature? The Recent Servers works for couple of connections, but not for 20+. Also it seems that if I ...
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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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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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1answer
7 views

Bind more than 1 port over SSH?

I use SSH for managing linux servers. Sometimes I need to bind ports from the server to my client. I do this this way: sudo ssh <serverUser>@<server> -L ...
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2answers
49 views

Connect headless server to OpenVPN

I'm running a headless Ubuntu 14.04.1 server. I'd like to use a commercial VPN service to secure the server's internet connection, and my VPN provider uses passphrases for authentication. I've ...
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1answer
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is it possible to access internal hosts from ssh terminal using ssh tunnel from windows directly?

I have a Ubuntu server that I do web development on at work. At work I use a Windows PC but I am on the internal network so I can Putty into the server to change code. I access the pages it serves ...
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7answers
80k views

How do I change my username?

Some time ago when I installed Ubuntu I chose a rather stupid username for my account that I do not want to use anymore. How do I change this (including the name of my home directory, and the name ...
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1answer
20 views

While accessing SSH/SHELL The security settings have blocked a self-signed application from running in mozilla/ubuntu 14.04?

While logging in the Cpanel ssh shell from Mozilla firefox in ubuntu It says : The application cannot be run Your security settings have blocked a self-signed application from running.? (Instead of ...
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2answers
81k views

How can I chroot sftp-only SSH users into their homes?

I want to give a client access to my server, but I want to limit those users to their home directories. I will bind-mount in any files I want them to be able to see. I've created a user called bob ...
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1answer
46 views

SSH very slowly connect

When I do ssh root@ip_adress I receive password request through 7-8 seconds waiting. It happens when I do it with keys too. This is not server side problem I'm sure(Centos or Debian connecting to the ...
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1answer
27 views

Browse internet through another host without having external public ip on any host

I need to browse several websites (that also have flash content) through my home internet, while im in my work place. So from the website servers they see only access from my home IP. There is no ...
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8 views

Ubuntu terminal tabs show hostname instead of IP [duplicate]

I am using built in Terminal on 12.04LTS. I have multiple tabs open and in each one of those tabs I have an ssh connection. I was wondering if there was a way to show an entry (maybe the first one) ...
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19 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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1answer
3k views

SSH: Permission denied, please try again. While tryng to connect to remote 12.04 server

I'm having quite the head ache because of this. The day before yesterday I rented a VPS at atlantic. They provided me with vnc and root's ssh credentials. I could only login through a VNC viewer ...
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1answer
3k 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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67 views

How to copy files between two computers using SSH [duplicate]

I have 2 computers: PCA and PCB. I am also using a SSH connection that goes from A to B. So here's my problem: I have a folder saved on the desktop of PC A and I need to copy it to the desktop of PCB ...
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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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7 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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37 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)?