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

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GSSAPI ssh login on Ubuntu 14.04 with SSSD and Active Directory

I'm trying to move from 12.04LTS with likewise-open to 14.04LTS with sssd using realmd and I've got it working for the most part, but I can't get Kerberos SSO to work. Under likewise I was able to do ...
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Ssh not working on rpi3 [duplicate]

I downloaded ubuntu and written on sd card using win32 image writer. After that inserted imto rpi3 and booted. I was able to ping but not able to do ssh. Please suggest how to resolve this. I am ...
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2answers
4k views

Editing remote files via SSHFS mount very slow (Sublime Text)

I'm trying to nail down the best way to work on projects located on a remote server. I use Sublime Text and I've been experimenting with SSHFS on Ubuntu to mount the remote directory locally and then ...
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33 views

Cannot add SSH key to MaaS

I have install Ubuntu 16.04, kernel 4.4.0-24-generic. As MaaS I have generate SSH keys using ssh-keygen -t rsa I hit enter for no passphrase I have typed more ~/.ssh/id_rsa.pub to get the key I have ...
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1answer
119 views

ssh X forwarding doesn't work

I have ssh access to two non-local Ubuntu servers. I use an Ubuntu laptop to connect to these servers. Unfortunately X11 forwarding works on one of them, but not on the other. Server1 (running Ubuntu ...
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1answer
26 views

Irssi certificate, OpenPGP and SSH keys in a new install

I'm intending to perform a full fresh install of Xenial 64 bits on my laptop currently running Trusty 32, bits since my CPU is 64 bits capable. I want/need to keep my current Irssi certificate, ...
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1answer
100 views

16.04 > SSH client slow in remote server

I've got a fresh new laptop with Ubuntu 16.04 and I'm experiencing slowdown problem in console/terminal when connecting in ssh in a remote server: connexion is slow and typing char has some delays. ...
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1answer
71 views

Unknown Cipher Type '3des' on SSHv1

Right now I am having an issue with connecting to a huawei router through SSHv1. Just to let you know, it works with SSHv2, but I need SSHv1 to test some special stuff. So I open terminal and write: ...
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2answers
30 views

Can't use SSH at all

I'm having some problems when trying to use the command ssh-copy-id in my server, unfortunately I get the following response: ssh: connect to host 192.168.10.10 port 22: Connection refused I can't ...
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I tried installing the ssh_package into my ubuntu 16.04 but it is giving me this error. I am running ubuntu on VMWare workstation pro [closed]

rmehra@ubuntu:~/Desktop/ssh_package$ sudo dpkg -i openssh-client_1%3a5.3p1-3ubuntu7_i386.deb (Reading database ... 172254 files and directories currently installed.) Preparing to unpack openssh-...
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23 views

What privileges should I give to a user who can access my SFTP but only reads them

I have a current root user which is able to do, well ROOT privileges on my SFTP running on Ubuntu LTS 12.04. I'm planning on adding a new user that can only read a specific directory inside my sftp. ...
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2answers
101 views

ssh-tunneled SOCKS proxy connection refusals on Firefox 47.0 / Kubuntu 16.04

I am having difficulty making connections to websites using Firefox over a tunneled SOCKS proxy. SOCKS4/SOCKS5 makes no difference. I set up the tunnel with ssh -D 1234 id@remotehost.example.com ...
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34 views

How do I pick a new name for a network interface?

Background I installed Ubuntu Server 16.04 inside Virtualbox 5.0.22. I'm attempting to set up SSH. I already have the SSH server installed on the guest, and am happy with the network interface set up ...
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54 views

Installing Xampp (or, Lampp) through SSH

I am pretty much new to the whole concept of Ubuntu and Linux as a whole. I've installed and had my server run php5 on my ubuntu 14.04 without problems as such. The issue arrise when I realised that I ...
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Host alias for ssh

There are a few SSH destinations I will frequently be connecting to and I'm wondering if rather than remember the IP address I can create a host alias for them. I'd like to be able to use... ssh -p ...
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2answers
200 views

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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53 views

Log in to ssh slow for one user, but not another

I'm running a server at home with Ubuntu 14.04. I have two users on the machine, say user1 and user2, each able to ssh into the box. While user1 logs in very quickly, user2 takes about 20 seconds to ...
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1answer
61 views

SSH “Connection Refused” when trying to access from the outside over a No-IP dynamic dns hostname

I am running a server at my house with SSH enabled on it, and I have given it a static IP of 192.168.0.212, and set up the dynamic update client to keep the No-IP dynamic DNS updated. When I am on my ...
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2answers
691 views

Reliable way to create secure tunnels from startup on an ubuntu laptop?

I'm looking for a reliable way to start a secure tunnel at boot on a laptop. This tunnel will not be needed by other parts of the boot process, but could be needed at any subsequent time by a user. ...
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1answer
35 views

How to check whether my proxy server allows ssh connection or not in Ubuntu?

My college uses a proxy server with firewall for providing internet. I am unable to make a ssh connection to my AWS instance through my college internet, though I can do so through my data modem. I ...
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1answer
53 views

Linux restrict user to specific folder in var/www

My apache root /var/www/html/ contains the following folders. myapp test testapp I want to create a new user to access only testapp folder (read/write). Other folders shouldn't be read. I created ...
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1answer
4k views

Permission problem with SFTP in FileZilla

Recently, we installed Ubuntu Server on our servers this is very new for us. However, we tried to setup a apache2 server which did work. But the problem is that we can't configure apache and other ...
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5answers
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What is the password for ``ssh root@localhost``?

I need to ssh to localhost using root account, by ssh root@localhost. When it prompts for passwords, I can not login with all possible passwords. On setting of localhost machine, regular user xxx and ...
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permission denied for root@localhost for ssh connection

I just installed Ubuntu 14.04 and LAMP on that. Then, I wanted to configure my server, so tried out This tutorial. When I give the command: ssh root@localhost I get : Permission denied, please try ...
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FTP Issues with 553 error: 14.04 on AWS running ISPConfig3

I have installed ISPConfig3 on an AWS server, using a 'Perfect Server' tutorial from HowToForge, and all seems well until I try and create a website. The server works, and a default config exists, but ...
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17 views

Can't connect to server through SSH after rtcwake reboot

I used crontab to create an rtcwake command to shut my computer down at midnight, and start it up at noon. The problem is, once it turns off, and then on again, I can't connect to the server through ...
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1answer
91 views

How to connect (FTP) to remote server via my Ubuntu VPS

My problem is quite specific: I need to connect (FTP) to a client's server from my PC (Ubuntu 16.10) but my PC has dynamic IP and the client's server has IP filtering on. I have my own VPS (Ubuntu 16....
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2answers
50 views

Error when copying public key

I have created a key pair in Xubuntu 15. I want to copy the public key to a Windows 10 laptop in order to allow ssh connection only from there, but when I run (as root): ssh-copy-id myuser@my.ip.x....
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1answer
66 views

Why does ssh-key work on one server but not on another?

I have the problem that an ssh-connection with public-private-key authentication is working on 10 servers perfectly, but not on another. The user is on all machines the same and the key-pair also. I ...
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17 views

ssh to ipmi and logging data

I experienced the following situation, so if anyone can offer his/her help it will be appreciated. From a local server, I need to access the ipmi of remote servers, simultaneously. For that, I plan to ...
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21 views

How long should unattended-upgrades take?

I have ran sudo unattended-upgrades while SSH'd into a Ubuntu box forgetting the -d or -v flag, so it is almost entirely silent. My Ubuntu 14.04.3 LTS said that it had 175 security updates(!) and my ...
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29 views

Does rsync over ssh require use of UDP?

I have a remote rsync backup to a server running over ssh, using NAT to specify a non-standard high numbered port on the router. Is it ok to only open the port on the router, and the ssh port on the ...
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51 views

l2tp gives error 410 on attempt to connect on VPN

I'm getting error 410 while trying to connect via L2TP. This error occurs very often, but sometimes I'm able to connect, which leads to a fact that I customized everything properly. I have Ubuntu 14....
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37 views

How to use lsof with SSH ControlPath?

I am extensively using SSH ControlPath and would like to use the lsof tool in order to check which process is keeping a ControlPath socket up and running. I am using OpenSSH_7.2p2 Ubuntu-4ubuntu1, ...
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75 views

Remotely connect to Amazon AWS Mysql

I have an Amazon AWS EC2 instance running Ubuntu 14.04. where I installed MYSQL 5.5. I am trying to connect to the MYSQL running on this instance from my local Windows10 machine running Navicat. ...
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30 views

Allowing access from only a specific IP does not work

I would like to access port 22 (ssh) of a computer whose OS is Xubuntu 15 from a specific laptop with Windows 10 and external IP x.x.x.x using Putty via Internet (i.e., these computers are not in the ...
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51 views

Why is my ssh connection so slow?

There has been similar question been asked time ago, but has no answers. I noticed today that my connection with ssh to other computer on local network it was very slow. When typing in terminal the ...
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What's the difference between login as user and changing users using su through root?

When you have a server of some sort you can access it through, e.g., ssh user1@ip and you can also do ssh root@ip to go to your root user with su priveleges and then go to su user1. In my thinking ...
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How set the Message of the Day (MOTD) as Ubuntu Server?

I have this in my Ubuntu SSH Banner Message: Welcome to Ubuntu 13.10 (GNU/Linux 3.4.43+ armv7l) * Documentation: https://help.ubuntu.com/ No mail. Last login: Mon Dec 2 08:25:39 2013 I'd like ...
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1answer
28 views

How to use existing SSH key on my newly installed Ubuntu

I have a fresh install of Ubuntu 16.04 on my machine. Now I want to use my existing ssh key on my machine, so that I can use GitHub with my previous activities. How do I set this up?
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495 views

problem with using git using private key

sorry if this question seems so easy but I'm new with UBUNTU and I still couldn't figure that out. I've been given a private key with password to clone and install a software from a repository using ...
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1answer
32 views

Remember ssh passphrase until user logs off

I use a passphrase protected ssh keyfile to connect to a server. Each time I open a new terminal I have to re-enter the passphrase. Can I make Ubuntu remember the passphrase until I log-off or for an ...
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8answers
5k views

Find out if there is a local user logged in when logging in over ssh

I need to run some calculations on a machine that I can only access remotely but also serves as a work station. There are many of them and I want to pick a "free" one. Free means in this case that no ...
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91 views

MAAS Deploying nodes hangs after SSH Key is shown

Everything was working fine, and then some configuration got changed that now has new nodes failing to finish being deployed. They get to the point where the SSH key is shown, with some Could_init ...
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1answer
38 views

rsync ssh sshpass server1 server2

I have created 2 servers, new to ssh sshpass s1 ip 192.168.1.245 s2 ip 192.168.1.76 wanted to copy files in s1>>/opt/files to s2>>/home/s2/backup objective: put 1 sentence in cron to do auto rsync i ...
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ssh: automatically accept keys

I've written this small utility script: for h in $SERVER_LIST; do ssh $h "uptime"; done When a new server is added to $SERVER_LIST, the script is stopped with: The authenticity of host 'blah.blah....
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sshd in Ubuntu 16.04 - login takes very long

I've seen ssh logins take some seconds many times before in the past. I always found that inappropriate. After I reinstalled my workstations with Xubuntu 16.04, this effect became really disruptive. ...
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49 views

Significant delay on ssh connections, after password input

I want to complain about Ubuntu 14.04, being slow at SSH connections. And this is happening only on Ubuntu, I didn't notice that in Debian, in which the connection is instant! Problem: There is a a ...
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1answer
53 views

ssh key forwarding not working under i3wm

I recently switched from the regular Lubuntu LXDE/openbox to the i3 window manager under Lubuntu 16.04. In either environment I can ssh with authentication forwarding activated into another machine ...
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SSH on Cloud routers

I have a Cloud router (cisco CSR router) and want to access the Cloud router through SSH . Is there a way to re-establish the SSH connection after the router is reloaded . What are all the options ...