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

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How to detect irregular activity in LAN/PC?

As I've just set up nice SSH server and everything so I was wondering if there are any ways to monitor my computer and my LAN from any suspicious/unusual activity? Additional information: The lower ...
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12 views

Locking a folder on a shared linux server

My college has a server set up for students and we all have a folder for our persona stuff on it (access via ssh). So I explored it a bit and found out I can access most of the folders of other ...
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14 views

Ssh disable password login

I wanted to ask since recently i have asked if ssh was secure enough to have port 22 open. I am working on getting the key ready but i have one thing. I have set passwordauthentication to no, and i ...
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9 views

Recover Server from recovery mode(firewall closes ports)

My server( Ubuntu 14.04 - Plesk - RAID1 ) is now in normal mode. Almost all ports disabled by firewall as plesk port 8443, so plesk login panel is not opening. Also Website is not opening. ...
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1answer
25 views

Can't ssh without password to some machines, on a shared filesystem on a cluster, while it is successful on other machines

I am running on a cluster, where my home directory is shared to all machines. Some of the machines are RHEL and the others are Ubuntu. When I login without password from RHEL->RHEL or UBUNTU->RHEL it ...
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6 views

Selenium testing browser against local machine from VM with selenium docker image

I am working on Ubuntu 14.04 notebook. I have a Virtual Machine from Virtual Box. My VM has a docker image of selenium server. I can successfully ssh into the virtual machine and run the docker image. ...
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3answers
29 views

SSH stopped working on Ubuntu Server 15.04 after restart [on hold]

I just restarted my server after installing UPower and cannot connect to SSH. I've tried "ssh localhost" and I get: ssh: connect to host localhost port 22: Connection refused I've tried changing ...
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16 views

Login to Ubuntu OS via console (from remote)

I have already asked google for this problem but I could not find a solution yet. Here is my situation: I have a desktop PC in my room which im atm just using to play music. I have no keyboard, ...
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14 views

Server gets overloaded with rsync and stops taking connections

I have a backup server in AWS where I rsync data from 20 servers hourly, so it has a hefty task. For the most part it works fine but then every few hours it locks down and stops accepting ...
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10 views

SSH freezes other processes

I'm running an Ubuntu 14.04 LTS, and somehow SSH seems to freeze some processes sometimes. For example, the file manager will not react anymore or Evolution (Mail program) will stop working - until I ...
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13 views

Ubuntu Server SVN over SSH not working

I am trying to checkout a repository on my computer using: svn co svn+ssh://name@ipaddress/usr/local/svn/repos/testing And I get an error saying this: Unable to connect to a repository at URL ...
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1answer
28 views

How to change the motd date format

Every time I ssh into my server the server prints the last login date and time. But I don't like the format. For ex: Last login: Sun Jan 31 12:12:13 2016 from 127.0.0.1 I want to to disable the ...
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1answer
29 views

Ubuntu server 14.04 running on power edge 1950 not connecting to internet

I recently setup a web server to run my owncloud. It was working all fine, until I had a power outage and the server turned off unexpectedly (I don't have a UPS just yet). When I turned it on none of ...
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19 views

Setting up Graphic Desktop --> Can't enter password

I am trying to set up a desktop on a vps with Ubuntu and this is as far as I have gotten I am in SSH here I put vncserver :1 and that is the response. Now the problem is that I can't enter anything ...
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2answers
24 views

How to save SSH options and connections in Ubuntu?

I have at this time two remote machines to which I am connecting. For one I am using private key with passphrase, and another one I am using root password. Now, when I want to connect to machine ...
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1answer
83 views

How can I compress my local file and copy to remote machine and the uncompress?

I can do every single step: 1, compress file using tar 2, copy to remote machine using scp 3, login remote machine using ssh, need password 4, uncompress the file but, I want to write a single script ...
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2answers
20 views

Cannot access the key generated .pub file

generated keygen files vagrant@vagrant-ubuntu-trusty-32:~$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/vagrant/.ssh/id_rsa): ...
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1answer
25 views

How do I 'scp' between a virtual appliances that are running on different computers?

Both computers are running their copy of the same virtual appliance on Virtual Box which is accessed through putty.exe. I would like to scp a C++ program that I've written on one of the virtual ...
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30 views

SSH myself using public IP address does not always work

I am running Lubuntu 14.04 and have set up an SSH server. It has taken me ages to troubleshoot because of a confusing fact. At home I can SSH my laptop from itself using either my local IP address ...
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2answers
35 views

Ssh safe enough?

This question is about ssh Hi i web server for my site, I use ssh :). I know i can port forward port 22 but is it safe enough? Let's say i use a password that takes a million years to crack or ...
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1answer
23 views

Impossible to connect to server through SSH with Filezilla

I have a Debian server which had a HDD failure and was re-installed identically (same hostname, same IP, same distro). I used to be able to connect via SSH using Filezilla from my Ubuntu desktop but ...
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1answer
19 views

autossh forwarded ports left open on connection failure

I am trying to establish a reverse SSH tunnel from my home network. I've got it so that autossh connects successfully once (and only once) per reboot. I'm forwarding remote ports to my local machine ...
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2answers
37 views

GNOME Terminal: Connect via SSH from Ubuntu Desktop 14.04 into Ubuntu Server 14.04 Virtual Box Guest Host

Here are my current conditions: I have UBUNTU DESKTOP on HARD DISK. (I don't use windows) Desktop has ssh installed. Ifnet: 192.168.1.3 Username: kenneth I want Desktop to be the client. VirtualBox ...
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37 views

client authentication via sssd/ldap

I'm struggling with an annoying server (14.04.03) setup. We basically want to enable users login via sssd/LDAP, so they can access the machine with ssh. I've followed various tutorials (e.g. ...
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1answer
34 views

Server, Remote Login, SSH?

Two Things. I'm trying to setup multiple server applications on Ubuntu With Terminal using SSH. I need to be able to use some form of login to the applications VNC, (having trouble with) SSH GREAT, ...
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1answer
18 views

Log on with two accounts on SSH with one port?

I'm wondering if logging into SSH on the same VPS using the same port will cause some issues with my server. After attempting to log in with the second user, I now cannot log in with the default ...
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1answer
46 views

Remote controlling my PC securely [on hold]

My primary goal is making it possible to remotely connect to my home PC and have remote desktop-like functionality. What software combo would satisfy the five requirements below? I've got five ...
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2answers
50 views

Putty SSH client question

I'm trying to select the list of commands generated as explained here, but I can't copy all the commands neither by clicking with the mouse's right button nor by hitting Ctrl + C. How can I copy the ...
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26 views

Apache2 runs but is not working on Ubuntu VM!

I set up apache2 on an Ubuntu 14.04.03 VM. This is a VM hosted on a university server and I can only SSH to it (from my office/home computer). Apache seems to be running OK when I run this command: ...
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1answer
24 views

rsync is failing when trying to sync a big home folder

I try to copy a very big home folder (/home/myUser) to a new computer over network. Although I regularly use rsync its failing after copying 55 / 80GB with the error message rsync error: some ...
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1answer
11 views

Cant connect to my VPS from Ubuntu Terminal

im try connect to my server using ubuntu terminal ssh -p 2222 -i mypublickey.ppk username@ip then its ask "Enter passphrase for key 'mypublickey.ppk':" Im entering my password but its always wrong ...
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24 views

Cannot connect remotely to either MySQL or Postgres

I am trying to connect remotely to the MySQL database on my cloud server which is configured with Ubuntu 14.04.03. However I cannot do so (details below). I can neither connect from a Windows client ...
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9 views

Thunar fails to reconnect broken ssh connection?

When I open an sftp connection to a server with Thunar, and this connection is broken for some reason (either the server kills it because of inactivity, or the connection is lost), then when I try to ...
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1answer
28 views

Unable to forward X11 graphics from Centos on Vagrant

On my real machine (Ubuntu 14.04.3 LTS) I deployed a Vagrant virtual machine and tried to forward X11 graphics from VM to real machine. For this I added in Vagrantfile such configurations: ...
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2answers
30 views

play sound in someone else's session from command line

I have tested playing sound via ssh console and it works with this: http://superuser.com/questions/276596/play-mp3-or-wav-file-via-linux-command-line I am wondering how to do the same in someone ...
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1answer
28 views

I port scanned 80 and 443 and found them closed. Why can I still browse the internet?

I have been trying to figure out why I cannot SSH to my raspberry pi from my laptop outside the pi's network. I port scanned and found only port 22 open. I got stuck with that and still do not know ...
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19 views

Unable to fix unmet dependencies ubuntu server

i am not able to install some packages, i got this error, i already tried all clean and -f options with apt-get. also tried this Unable to fix unmet dependencies but it did not work for me. Running ...
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1answer
49 views

External ssh not working (port already forwarded)

I'm setting up my first home server from an old pc. I've installed Ubuntu Server 15.10. I've been trying and doing some research but I couldn't make the SSH work from an external computer, it always ...
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12 views

SSH Permissions in Linux Mint [migrated]

I need to use SSH on my machine to access my website and its databases (setting up a symbolic link- but I digress). Following problem: I enter the command ssh-keygen -t dsa To generate ...
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8 views

During VNC/SSH, push VGA output from host machine

[Very short version: Is it possible to "push" video from the VGA port of a host machine while accessing said machine via VNC or SSH?] I have been experimenting with an old ThinkPad T60 laptop as a ...
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1answer
36 views

Destroy ssh tunnel if exists and create new one

I open a reverse ssh tunnel after the OS reboot (on office pc to a dedicated server). I put it into cron by @reboot /myssh.sh. The ssh opens a port on server. My problem is : If the OS (office pc) ...
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46 views

midnight commander freezes on remote file copy over fish/ssh protocol

I'm using midnight commander (mc), version 4.8.1 shipped with Ubuntu. when I try to copy a file from remote ssh server over the fish/ssh protocol, mc freezes at 0%, and I had to terminate it. I tried ...
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26 views

Conditional shell script execution on NAS

I've got NAS, more specifically QNAP TS-251 running Ubuntu (but kind of modified one - it doesn't have terminal). Since none on QNAP forum was able to answer me, I've decided to create a post here. ...
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19 views

Run a process as SSH starts

I would like to run a process as SSH is completing its handshake. Are there any events that I can subscribe to? I would also like to get the PID of the ssh connection. How should I approach this ...
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0answers
27 views

SSH secure shell not working with vim colors

The script: 256colors2.pl when run from putty returns the correct colors, from SSH secure shell nothing happen, it doesn't open, on-screen appears nothing. user@ubuntu:~$ ./256colors2.pl ...
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1answer
35 views

Remote Desktop connect with SSH client

I have went through openssh server set up but it seems all command line. Is there a gui for it? The main option I am looking for is a way to know people connected to the server real time and ...
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1answer
36 views

Meaning of: Identity added: .ssh/example_rsa ((null))

I SSH connected to a server using: ssh -i ~/.ssh/example_rsa root@xxxxxxxxx I got the following response: Identity added: .ssh/example_rsa ((null)) I'd like to understand: Added to what? What ...
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1answer
22 views

Configuring my device(atmel embedded board) only logging permission to me : deny all other users trying to log in

First I will explain my needs. I want to configure my device (Atmel Embedded Board), for log in without password through SSH. I Googled it and found out the solution for that. Now I can log in to the ...
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2answers
28 views

Passwordless SSH only works when I'm already logged in on SSH

So I set up passwordless ssh using the following: How can I set up password-less SSH login? After setting this up, I'd expect that I wouldn't need a password to ssh. My issue is that on my first ...
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1answer
36 views

sudo ssh-add /root/.ssh/id_rsa return error

I m trying to save ssh authentication with the command ssh-add for sudo usage: linux$ sudo ssh-add /root/.ssh/id_rsa Could not open a connection to your authentication agent. but as indicated it ...