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

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How to connect my Ubuntu Server to internet

I know this might be a duplicate question, but I have scoured the forums and none of the answers have worked for me yet. I want to set up an ubuntu server on my old Dell laptop as it is useless as a ...
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Error when running ssh: -bash: exec: cd: not found

Here is the output on the terminal when I run ssh, not sure what is wrong. Welcome to Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-86-generic x86_64) * Documentation: https://help.ubuntu.com/ 10 packages ...
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Ubuntu arm64 cloud image - ssh permission denied

I am trying to use Ubuntu on qemu, because I need to test some Arm-64 bit specific software, but all I have is a plain X86 server. I tried following the instructions here: http://suihkulokki.blogspot....
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ssh out from a non-vpn address while connected to the vpn

Specific problem: I have some remote hosts that I need to ssh to that require that I be connected to a VPN. I have some hosts that will not accept connections from those VPN addresses. Is there a ...
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Cannot install SSH2

I'm noob in ShellCommands and cannot install PHP-SSH2, I'm using apache2 and tried by following this but didn't worked for me, if someone could help me (I'm under Debian 7).
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Cannot SSH to local network hosts by name

Recently it seems as if my Ubuntu 16.04 laptop has lost the ability to communicate with other hosts on my network by name. I used to be able to run ssh pi@bifrost.local or similar. However, about 3 ...
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Mysql Workbench on ubuntu 14.04 cannot export db

Hello fellow when I try to export a database (connected via ssh) I get the following error: 04:53:39 μμ Dumping cosmima (all tables) Running: mysqldump --defaults-extra-file="/tmp/tmpVGyoJZ/...
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Can't clone porject from bitbucket & github

I can't clone projets and I don't know why... I reinstalled ubuntu this morning, generated a public key with ssh-keygen and added my public key ~/.ssh/id_rsa.pub to bitbucket and github... EDIT 2 - ...
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Is there a way to tell if Ubuntu is running in recovery mode via terminal?

I'm logged in via ssh(which I thought should not even be in recovery mode?) since my raspberry pi doesn't have monitor or keyboard. I've been having to remount the root directory as rw and there are ...
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47 views

How to make slaves on cloud trusted trusted for the server to perform parallel execution

I made a task to execute multiple tasks in parallel on different slaves and the command issued by the server, but it asks me each time to enter a password for each slaves and the task fails to ...
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44 views

Turning a computer on remotely, but still on the same network

I have a home server running Ubuntu 14.04 and a huge first world problem. I like to conserve power so I leave the server off most times when I'm not using it. But when I have to turn it on I have to ...
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Can't SSH to machine on Local Network (time out), can SSH from ouside LAN

I have a Box 'foo' which has sshd running. I wish to ssh to this machine via Box 'bar'. Box 'foo' has the IP address 10.0.0.100 and Box 'bar' has the IP 10.0.0.109. The gateway for both of these ...
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46 views

Hamachi service on boot

I have installed Logmein Hamachi on a Raspberry PI2B running Ubuntu 14.04. I want to access this "server" via ssh with the Hamachi ip (using hamachi because the ip of the server will change over time ...
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Can not resolve aliases for ssh

Here is my problem: I got two machines in the same network 192.168.122.0/24 my /etc/hosts : 192.168.122.100 toto 192.168.122.110 tata if I type : ssh toto: root@toto's password: Permission ...
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28 views

“Host key verification failed”?

Well, I'm working with virtual machines and I was trying to establish connection between client and server by ssh (from client to server). I installed ssh in both machine and I restarted too. It was ...
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Can't log in: Upgraded to Ubuntu 16.04 invalidated my public ssh-keys, changed to PasswordAuthentication no and now I can't get back in

I upgraded my remote server to Ubuntu 16.04 (from 14.10). Then I reconfigured it to only use keys and not passwords. Did that by editing the /etc/ssh/sshd_config file where I changed to the following:...
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40 views

Copy file with scp command

Trying to copy a file from RPi to my PC: $ scp MyFile.pdf user@192.168.0.83:~ ssh: connect to host 192.168.0.83 port 22: connection refused lost connection When copying the same file from my PC ...
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Sharing a Network Drive through OpenSSH for a Specific Group

First question, hooray! To the point: I'm not very well versed in Linux, I'm in the process of studying my Linux+. I'm working on a variety of projects with friends, co-workers, and teachers. I'm ...
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38 views

SSH connection in cronjob denied :“No supported authentication method”

I wanted to set up crontab to fetch resources from remote server to local server. Steps used as below In local server ssh-keygen with no passphrase copied the pubic key over to the server using ...
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38 views

SSH from Ubuntu to Lubuntu on a local network

I want to SSH from my laptop to a device on my local network running Lubuntu. I'm trying to use the method described in this answer. To get a list of Ubuntu: avahi-browse -tl _workstation._tcp ...
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46 views

SSH tunneling with relay and dynamic IPs

I am trying to achieve a vnc connection through ssh tunnel from a computer on a private network, and to another one on another private network, using a public server as relay. It can be graphically ...
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ksshaskpass asks for passphrase before kwallet

I have the kubuntu desktop 16.04. I use kwallet and ksshaskpass to unlock my ssh keys automatically on startup. kwallet is password protected too. My problem is that at system startup ksshaskpass ...
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sshfs giving “remote host has disconnected”

I am trying to mount an sftp connection into a folder using sshfs with the following command which throws an error. ~$ sshfs admin@example.com:/ testfo remote host has disconnected The same error ...
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ssh or openssh not listed in the Ubuntu Software program

I am trying to install ssh on a fresh install of 16.04 LTS but it is not listed in Ubuntu Software program
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ssh ldap AuthorizedKeysCommand

I have mounted an LDAP server, I generate certificates for my users and I wanted to store certificates in ldap (certificates itself, not their directories), I found the following scheme used to store ...
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Issues while downloading all packages offline

I wanted to offline download all packages required to install openssh-server on Ubuntu 14.04 of my office PC which has several dependency mirrors blocked due to firewall policy. So I have installed ...
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51 views

SSH fails in Crontab after reboot

I am regularly running a shell script through Crontab that uses SSH to connect to a server. If I run that script manually it runs through successfully. Within the same session Crontab will ...
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35 views

How to configure Redsocks in Ubuntu?

I have a HTTP proxy connection in my college, I used Proxifier in windows to redirect all connections through my proxy ID ( username and password), How can I configure Redsocks to do the same?
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55 views

Port forwarding/bypass firewall

I have two servers located at two different places: Ubuntu Server (MySQL) Ubuntu Server (Tomcat) The problem here is that the Tomcat server cant send data to the mySQL server over port 7878 because ...
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Putty SSH, refused connection by guest mininet machine

I followed the main VM installation notes on the Mininet website, and the VM works totally fine. But When I tried to SSH into the VM, at first it timedout the connection. Then after searching on the ...
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SSH issue commands stucking

when I do ssh to my server and logged in successfully through terminal, the commands are stuking and taking longer to infinite time. e.g. ls,nano etc. I'm using ubuntu14.04 Terminal.
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ssh-keygen -lf doesn't work in 16.04 LTS

When I run the command ssh-keygen -lf /etc/ssh/ssh_host_rsa_key it returns: 2048 SHA256 asdfgErgsf34GQERgfdGadsfsafgergfgadgfagjfaifgj root@Fre2 (RSA) Instead of a value such as: RSA key ...
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39 views

Escape username spaces in SCP

I've been playing around with SCP for a while, and I've been able to transfer files from one place to another. It all worked nicely until I needed to copy a file from Ubuntu to a Windows user who had ...
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Adding SSH to new user: Jailed (chrooted) SFTP user can authenticate, but is immediately exited [duplicate]

I'm having trouble creating a new user with some key permissions. I want this new user to do the following with "everything else" locked down: SSH tunnel to port 5432 (postgres) SFTP jailed to the ...
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64 views

Iptables rules slow down loggining in via SSH

I am trying to build some basic iptables rules for my VDS: iptables -A INPUT -p tcp --dport ssh -j ACCEPT iptables -A INPUT -p tcp --dport 80 -j ACCEPT iptables -A INPUT -p tcp --dport 443 -j ACCEPT ...
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Open folder GUI in remote machine

I have ssh connection with a remote machine (ssh username@server). But now I want to open a certain folder path/to/folder in a GUI environment. The following I've tried while being in username@server:/...
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34 views

How to setup transparent ssh when there are multiple servers

My desktop is Ubuntu. There is a host class with name my_host_machine, which includes several servers like: my_host_machine_1, my_host_machine001,my_host_machine__123, etc. It's uncertain which server ...
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ssh / scp / sftp slow. Transfers seems to be capped at ~64kb/s

Machine details: mediacenter@mediacenter-Aspire-R1600:~$ uname -a Linux mediacenter-Aspire-R1600 3.19.0-51-generic #58-Ubuntu SMP Fri Feb 26 21:22:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ...
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Remote Desktop Linux to Linux

I'm a new user and recently I installed Debian Wheezy in PCs. I'm in charge of a computer center in a public school, and I need a software which control another ones. The trouble is I have been ...
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Question about bash script

I am using Ubuntu 16.04. I have written a basic bash file which automatically logs me into my SSH server. Is there a way to add a message which says "Connection failed" if SSH can't reach the server? ...
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Printing over ssh: “cat file | lpr” or “lpr file”

I am looking at how to print a file over ssh. Two websites (The Linux Documentation Project and Computer Hope) suggest the command "lpr" but both seem to suggest two different methods, with no obvious ...
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137 views

OpenSSH index out of bounds when trying to connect

I am trying to connect to a SSH server that is out of my control with the following command: ssh -v user@12.34.56.78 -p 12345 Previously, this command works on Ubuntu 14.04 with OpenSSH version 6.6....
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Access to host X11 from multiple containers (lxc) sharing the same GPU is limited to the last activated container

I have a server and 2 lxc containers sharing the GPU (nvidia gtx980 364.19) Vt7, Vt8 and Vt9 When trying to access the host X11 from any of the containers. It only works from the container that was ...
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170 views

ssh localhost issue on Ubuntu 16.04

I am trying to ssh to localhost, but it's asking for a password every time. What I tried: ssh localhost ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa cat ~/.ssh/id_dsa.pub >> ~/.ssh/...
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Jails user in your home

I have VPS with many users, but i need jails user in your home. Example: User1 access /home/user1/public_html User2 access /home/user2/public_html Both can use SSH, but may not have access to /...
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Run Shell Script inside tmux

Why after running tmux on a remote server via ssh, program works; but after detaching sessions, it returns 404? This is a Go(golang) program, a http server listening on a port, behind a nginx reverse ...
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I need a correct help for MariaDB SSL support

I have to make my MariaDB authentication a bit safer than default. I tried to set up SSL support for this, but found only an old howto here: How to enable MySQL SSL on Ubuntu I followed it, however ...
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SECURE LAN for File Transfer, 3 machines, upload/download from any machine to any machine

I would like to be able to access 3 different Ubuntu based machines securely, both upload and download, all on the same LAN. I need either written resources or step-by step instructions to setup all ...
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ssh_exchange_identification: read: Connection reset by peer

I really do not know much about ssh. I only know how to type some commands to get into my machine in my office when I work from home. Today I got some updates on my Ubuntu 14.04 machine, a new kernel ...
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150 views

How can I resolve x11 problem with Putty if I have this error? PuTTY X11 proxy: Unsupported authorisation protocol

On my client PC I'm running Windows 10 and I have installed XMing and Xming Fonts. I am running Putty and I have configured it to enable X11 Forwarding. I have tried leaving the X display location ...