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

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Apache2.4 PHP 5.6 Ubuntu 15.10 No Input File Specified

I am running a VPS with Ubuntu 15.10 using Apache 2.4 as my web server and I am kind of new to servers and stuff but I am currently creating an API. I first did this on my localhost. This worked ...
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Can I use a UDP connection for the “Connect to server” option in file manager?

I work a lot on remote mashines and like to bookmark them in my file explorer using sftp://user@host/initial/dir syntax. In unstable networks, this connection keeps breaking off an I have to re-...
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2answers
49 views

How to expose ssh to the internet?

I run the search on google and ALL I can find is a bunch of nonsense about how dangerous it is to do this with only a password...followed with a link to the instructions on the ubuntu website for ...
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0answers
22 views

Check status progress on running rsync

I have started a rsync task via terminal on my local ubuntu machine to copy files from one local HDD to another local HDD with the command rsync -a --progress source destination. Hence I am able to ...
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1answer
91 views

Cannot SSH into server from one particular computer (connection closed/did not receive auth string)

I'm having trouble using ssh to access a server that I recently set up with 16.04, but only from a specific computer (my laptop). When I run ssh -vvv -p sshPort user@host, I get this output: ...
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19 views

Autossh fork after entering password

I have an SSH tunnel that I run with autossh to keep it going reliably. The only issue I have is that I have an encrypted private key which I use to connect. If I want to fork my process to the ...
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6answers
4k views

Personal computer hacked: How do I block this user from logging in again? How do I find out how they are logging in?

I am 99.9% sure that my system on my personal computer has been infiltrated. Allow me to first give my reasoning so the situation will be clear: Rough timeline of suspicious activity and subsequent ...
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1answer
82 views

Send ZFS snapshot to remote machine

Edit: This question originally focused on the issue of reversing the direction of the ssh connection on the transfer, but I came to realize that wasn't what was causing the problems I run into, so I ...
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201 views

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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20 views

MPI-programm tries to access via ssh(?)

I got an MPI code which I can't get running. All needed libraries are installed and compiling works with no problem. But when I start the code mpirun -n 2 ./a.out the terminal freezes after some ...
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1answer
81 views

How to ensure user separation on an old school shell server

I want to run an old school shell server for a couple of people, ie. one where users get ssh access so they can run software (their own or provided). My concern is appropriate separation between users....
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17 views

Use vpnc For Specific URL And Port

I'm on Ubuntu 14.04 and I use vpnc client to connect to a client's network. However due to this all of my traffic (web browser, streaming, skype, etc) gets routed through the VPN even though I only ...
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0answers
45 views

HDMI screen gives “no signal” but VNC screen shows window manager correctly

My Ubuntu 12.04 kernel is running perfectly fine and even the desktop shows in all its glory when I connect via a VNC client from my Mac. It even recognizes my HDMI monitor that is physically plugged ...
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1answer
57 views

can't ssh into remote machine using blowfish

I have a remote machine I need to ssh to using blowfish encryption. I set everything up on my laptop on my previous distro and I have in my config file setup for blowfish. Today I install Ubuntu Gnome ...
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3answers
4k views

Ubuntu 16.04 ssh: sign_and_send_pubkey: signing failed: agent refused operation

I just upgraded my Ubuntu System from 15.10 to 16.04 by completely wiping the Ubuntu 15 partition from my system. After installing Ubuntu 16.04 I recreated my ssh keys as I forgot to back them up, ...
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1answer
37 views

Not able to ssh as root on 14.04.2

I have done all the workarounds, yet, I am still not able to ssh as root. I have already modified PermitRootLogin to yes, and I have reset ssh services. I have even rebooted the VM, but it is just not ...
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0answers
15 views

How to export the gui of an already running program to the remote computer via SSH? [duplicate]

I have pycharm on my desktop and I would like to access it from my laptop over ssh without having to close pycharm on the desktop (since I frequently have long tasks running). Currently, I am able ...
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1answer
1k views

vagrant box for ubuntu/xenial64 and putty on Windows 10 host

I am using vagrant to run some virtual machines on my personal laptop (Windows 10). I have already installed ubuntu 14.04 and centos on this laptop and all works as expected. Today I tried to ...
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1answer
68 views

Still being Prompt for Password After enabling Public Keys

When I added my public key into my .ssh/user/authorized_keys file and I saved and restarted my server it gave me this error: initctl: Unable to connect to system bus: Failed to connect to socket /var/...
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1answer
83 views

xrdp on ubuntu server

I have set up xrdp on my ubuntu server 15.10, with mate desktop environment and it all works fine and dandy. Except for when I enable UFW. I have the following ports allowed all tcp 2222 (ssh) 3389 ...
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1answer
688 views

Can not install openssh-server on Ubuntu 16.04

As a fresh new install of Ubuntu 16.04 sudo apt-get install openssh-server outputs Also it is a fress install I could not understand why this happens. dpkg -l openssh\* Output is If ...
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14 views

IP changed and can't start Xwindows now

Client PC: Windows 7 with Putty 0.63. The IP changed on this PC. Ubuntu 14.04 Ubuntu shell: bash On client PC the Xwindows server is Hummingbird Exceed v14. All this worked fine until my client IP PC ...
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66 views

cannot ping or ssh, can connect to localhost

I can connect to the localhost using: ssh root@localhost However, when I try to connect to my Amazon EC2 instance using ssh, it says: ssh: connect to host <host_name>.us-west-2.compute....
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1answer
35 views

Agent admitted failure to sign using the key

After a fresh ubuntu install, it seems I can't use any bzr branch commands. I get the following error: Agent admitted failure to sign using the key. Permission denied (publickey). ...
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0answers
65 views

How can a user account be disabled?

I've had a Ubuntu 12.04 LTS VM machine running my web sites for the past 2 years, on Windows Azure. I hadn't logged in for a few weeks, and today I tried to log in, via PuTTY/SSH username/password, ...
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1answer
51 views

How to tell git not to use rsa key but username + password

I guess I messed with my ssh configuration. Lately I cannot clone a local repository anymore. It seems like the git repository is accepting both publickey and password but instead of letting me ...
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1answer
43 views

How can'i pass this “ openssh-client' has no installation candidate ”

I am trying to use ssh command, but I have this: sudo ssh git-codecommit.us-east-1.amazonaws.com [sudo] password for dali: sudo: ssh: command not found So when i am trying to install openssh-...
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0answers
50 views

Ubuntu Server Network Setup

Hello All I am new to the community, sorry if I break some of the questioning precedents. I am trying to set up an ssh server and I just installed the 14.04 Ubuntu Server on a desktop. I was not ...
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2answers
74 views

Know Ubuntu Distribution server or desktop

I am asking question after googling and I tried multiple solution but need a specific answer. I have logged in another pc with SSH and I need to know that the OS distribution is server or desktop. ...
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1answer
40 views

In file browser: connect to ssh server via other ssh server

in my file browser I have problems connecting remotely to a machine which sits behind a nasty firewall. Usually in a terminal our procedure to connect to that server goes via an ssh connection within ...
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1answer
79 views

Troubleshoot ssh prompting for password

I am using Ubuntu 15.10 and I am having trouble to login through ssh without password although I added my ssh keys. It was working before and then suddenly stopped working. I do not know what I did ...
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0answers
51 views

Automatic Kickstart installation how to add ssh keys?

I maked a FAI using Kickstart principles. The only package added openssh-server, but if I try to use post installation scripts (for example) to add ssh authorized_keys in ~/.ssh/ installation stops by ...
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1answer
68 views

Automating SSH login gives unresponsive remote-shell, dropping back to client-terminal (without errors)

I have a problem with the tool expect under Ubuntu 14.04 LTS. I want to automate ssh logins to some Sophos UTM Firewalls and evelate my rights directly after with "sudo su -" and the correct password. ...
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2answers
53 views

Unable to SSH to a host within my home LAN by using the hostname or local IP address

I want to access the SSH server on a Raspberry Pi (with Raspbian OS) from an SSH client on a X86_64 computer with Ubuntu 14.04, both located inside the same home LAN. I am able to SSH from the ...
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1answer
46 views

SSH Terminal like SecureCRT

On Windows I used to use SecureCRT and GNS3. Ubuntu also has GNS3 and its free. Is there a free alternative to SecureCRT, an SSH terminal which has a multi-tab facility to access multiple routers at ...
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204 views

Error when running “vino-preferences” on Ubuntu 15.10

I'm trying to configure and enable remote login on an Ubuntu 15.10 machine by connecting to it using ssh from Ubuntu 14 machine. On Ubuntu 15.10 machine, I've installed vino using the following ...
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35 views

scp syntax question

I'm having a little difficulty using scp to transfer files from a remote computer. The issue apparently has to do with the name of the directory the files are contained in. They're on a CD drive ...
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1answer
40 views

auto start a reverse ssh tunnel on system startup

I am have a remote machine behind a firewall that I wish to connect to through SSH. As far as I understand this can be achieved by using a reverse ssh tunnel. So the command I am using is ssh -N -...
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1answer
24 views

How to run an executable file (web app) 24/7 and restart automatically when it breaks down?

I have an executable file on a server which is a full-fledged standalone web application. When I login to a server via ssh and run the file, the website become visible in the internet. Obviously, ...
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3answers
89 views

Import SSH keys for remote server

I have an Ubuntu 15.10 X64 and I am working on a project for which I am trying out GIT. I have created a repo on one of our remote servers, which is a Debian server, and the repo is accessible via SSH ...
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127 views

PHP not loading ssh2 extension after successful installation

I was getting this error, when running my PHP script to download files using SFTP: PHP Fatal error: Call to undefined function ssh2_connect() I installed the ssh2 PECL extension by running the ...
3
votes
3answers
70 views

Can't Use SSH Keys Unless Running SSH With Sudo

For some reason I'm unable to SSH from my Ubuntu 15.10 machine to a remote server using a private key if I run ssh without sudo. Server side config is fine. I have tested the private key from my ...
3
votes
1answer
46 views

Why does auth.log warn of a possible break in attempt?

I have a server which receives backups from a remote server via rsync authenticated by ssh-keys. The rsync comes via a ddns URL, to a high numbered forwarded port. The sending server is on a normal ...
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0answers
47 views

SSH: Torch-Lua Script Unexpectedly Stops

I'm trying to run a Torch-Lua script on the luajit interpreter by using SSH on a remote (Ubuntu 14.04) machine. It runs only for two iterations and displays all the outputs accordingly, but, as soon ...
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1answer
93 views

Command after apt-get install is not executing in script

I wrote a question on Server Fault, but I guess it's more applicable for this community. I'm writing a script which is meant to initially set up my Droplet. In the script, I'm opening SSH connection ...
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33 views

How can I ssh to a server after running sshuttle?

I ran sshuttle on a server to Nat all of it's traffic behind a proxy server, so in this way I can hide it's IP address. But the problem is that I can not SSH to the server, as SSH will be behind the ...
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2answers
44 views

how do I access linux machines by name on the network?

I run a home office and I have a number of linux boxes and mac machines. I'd like for people to be able to ssh into the various machines without having to remember each machines ip, by using the ...
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1answer
45 views

Running SSH and Samba servers simultaneusly

I have both servers installed and configured on a computer. (The reason I'm not content with SSH alone is that I've not been successful generating and using key files in Android.) However it seems ...
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1answer
38 views

Ubuntu SSH & HTTPS Connection Issues after OS update

So yesterday everything was working great. My Ubuntu 14.04 was updated with linux-image-extra-3.13.0-85.129 update. When I start the computer this morning, I noticed that I can no longer SSH to my ...
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31 views

Allow winscp/filezilla through iptables and fail2ban

I just launched a website within my school community and woke up this morning to logs of someone trying to bruteforce into my server. I followed some guides on digitalocean to set up fail2ban and ...