SSH (Secure SHell) is a protocol for running commands on a remote computer.

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Putty Login error through SSH (Network error: Connection timeout)

I am trying to login into one(X) server using putty (port 22), and it is showing Fatal Error in a pop-up with the message Network error: Connection timed out. But when I am in different server(Y) on ...
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66 views

Password entry only responds to Ctrl + D, and password cannot be read

I am trying to run build-key-pkcs12 user on my OpenWRT NSLU2, to generate some client keys for the users of my VPN. Everything runs normally until I get to the enter export password part, and the SSH ...
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11 views

Chroot Users to /opt and subdirectories [duplicate]

I'll make this short and hopefully I make sense. Im trying to give a user ssh access, but, he/she must only be able to access /opt and the few subdirectories that live under it. However, here's ...
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216 views

How to capture tail -f output from remote host indefinitely

I am trying to monitor a remote, embedded host that is writing output to a file: /var/log/myapp.log This host may lose power for hours. The app may be killed and restarted. On my local machine, I ...
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1answer
117 views

Exiting a script called from another script via SSH

Suppose that bash script X is being called within another bash script Y. If I directly execute script X on a local machine, after X's completion, the program exits to the terminal. However, when I ...
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110 views

Is it possible to run FreeRDP without a display for running scripts?

I am working in a very strict enviroment where I only have access to a remote computer via RDP and it is impossible for me to enable SSH or SFTP etc on the other computer. I CAN connect to the ...
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1answer
2k views

Fail2ban with firewalld

I'm trying to configure fail2ban to block ssh from a local hosts. Fail2ban is install on CentOS 7 with firewall (Linux 3.10.0-229.4.2.el7.x86_64 x86_64 ). I have copied the jail.conf to jail.local i ...
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630 views

PuTTY does not connect over SSH; other clients work fine

I have a CentOS system that I can connect to using several SSH clients (FireSSH, WinSCP, MySQL Workbench over SSH). For some reason, PuTTY, which was working a few days ago, can not connect. It will ...
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160 views

Appending a line to a file via a ssh chain

From my machine A, I got access to a machine B that can access a machine C. From A, I want to append a line to the file ~/.profile of C. So far I tried: ssh user@B ssh user@C "echo \"line of text\""...
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272 views

SSD installed, but shows as HDD in command output

Strange issue here. I have a 480GB SSD drive installed in this server. I installed it myself. I see it, it's there. But, I'm getting an incorrect output on a typically used command to determine if it'...
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110 views

OpenSSH Server as Tor Hidden Service

What exactly is considered best practice when setting up an open SSH server as a Tor hidden service? I do it this way, but I feel like there's a better way of doing this: I just set SSH up as a ...
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145 views

Easy way to compare BIOS information between two machines?

I have two machines - machineA and machineB running Ubuntu 12.04 Is there any easy way I can compare BIOS settings between those two machine and see the difference instead of doing it manually using ...
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101 views

Scale ssh forwarded graphical interface

I am running gnome on top of archlinux on a samsung ultrabook which display is hidpi. Gnome supports hidpi quite well actually, and apart some applications that ignore the system font settings or the ...
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1answer
102 views

How can I make the unix `pass` program play nice with `ssh` inside the Linux Virtual Terminal?

I am trying to log into an ssh server by pulling the password directly out of the pass program without any GUI interaction. The normal workflow in the GUI (Gnome) is to do the following. Pull the ...
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339 views

Error running startx on CentOS via SSH

Whenever I attempt to run startx on a system I have SSHed into, I get the following output: xauth: creating new authority file /root/.serverauth.6604 X.Org X Server 1.15.0 Release Date: 2013-12-...
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1answer
70 views

Tunnelling through multiple machines on Red Hat with varying users and keys

I'm trying to SSH tunnel hop to a Tomcat7 server where JMX was configured on port 9090. Essentially: localhost > hostB > hostC. In a terminal, from localhost to hostB: ssh -L 8989:localhost:...
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1answer
340 views

Linux LiveCD Server with FTP & SSH Services

Could anyone please suggest me a LiveCD (Linux Based) with SSH & FTP Services. Basically I don't want to install anything on my laptop so I just want to boot LiveCD with FTP/SSH services so I can ...
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1answer
448 views

Lsyncd not working on Mac 10.9

I'm attempting to use lsyncd to automatically move files to my local development server. My host is OSX 10.9. SSH on the server works. I can connect using ssh from the host. I am using an SSH key to ...
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125 views

Backing up VPS via SSH/SFTP

I'm going to perform some maintenance on my VPS (Ubuntu Server 15.04), and I would like to back up some files before doing so. The problem is that some of these files are under other users' home ...
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1answer
1k views

ssh secure shell: “connection closed by remote host”, not acquiring the key

I am very new to using this ssh secure shell to access a remote workstation. This is the third time I have received the message: Server responded "Connection closed by remote host". The ...
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1answer
322 views

ssh 3des private key encrypt and decrypt

i have converted my ssh private key with 3des encryption openssl pkcs8 -topk8 -v2 des3 -in ~/.ssh/id_rsa.old -out ~/.ssh/id_rsa how do I remove encryption and get the old key?
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241 views

VNC/SSH: How to execute a command after logging in?

I'm looking for a way to create a VNC console user that executes the command screen or bash immediately after logging in so they get their own restricted shell for executing commands etc. Screen/bash ...
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1answer
106 views

Dubious entry in logwatch

Today I found the following in the daily logwatch of my debian server: --------------------- Connections (secure-log) Begin ------------------------ **Unmatched Entries** sg: user 'root' (login '??...
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2answers
1k views

import .sql file into a remote server from a local machine

I've created a database in the remote machine. Currently, the database is empty and I need to import using a backup(.sql) file. The backup file is in my local machine, it is a 40gb file. And the ...
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111 views

ssh x11 forwarding drag-and-drop

Is it possible to drag-n-drop into x11 forwarded application? For instance, I'm forwarding skype and I'd like to send a file by dropping it into message box. Yes, I know I can work it around. This ...
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12 views

how to display osd_cat on a remote HDMI Screen [duplicate]

i have installed xosd an used osd_cat to display text in my screen. the problem is that i cant do it on the remote station on the remote screen through SSH. I want to execute osd_cat on the remote ...
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186 views

SFTP connect through an other server

I want to connect to my account in a server of my university. When I’m there I only have to do ssh user@FinalServer/home/user or create a folder using sftp://user@FinalServer/home/user But the ...
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388 views

SSH Connection closed by remote server for one client but no problem with others!

I have a remote server and I was able to connect via ssh to it but some they I could not any more! I ssh to server with my laptop and my android phone but from some day every time I am trying and the ...
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178 views

Mounting nfs4 partition over ssh tunel

I am following this manual on how to mount an nfs port over an ssh tunnel: https://blogs.oracle.com/shepler/entry/tunneling_nfs_traffic_via_ssh I need this because I want to mount an nfs partition ...
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pannel applet wont spawn process

I am using Mate, with debian8, an this has never not worked, so I'm confused now. I have a custom applet (launcher), which reads: ssh user@ip When clicked it does nothing, ordinarily a terminal is ...
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442 views

Any special permission ssh remote command working on fifo file(aka named pipe)?

I need to redirect some strings to a fifo file with ssh remote command, but always got permission denied, the command I executed is: ssh rundeck@nagios1 sudo su - root -c 'printf "...
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iptables allow only ssh and vpn traffic

I have dedicated server with ubuntu 14.10 installed. The server should connect to an openvpn server and the traffic should only go through the vpn, except for SSH traffic. My idea is to realize it ...
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Different Commands on Multiple Servers

I want to execute different commands on different servers. Server addresses are in a text file. Commands are the same except a parameter related to their addresses. For example: ./run0 on the first ...
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76 views

Linux user ssh connection disabled after execution of setfacl command

I have very little linux administration experience, after searching a lot stuff online, finally I decided that I must hope that someone helps. The problem is, I needed to share an account with a ...
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1answer
242 views

Login using Private key on USB Dongle on SSH@linux

I'm presently using PPK file (public and private key pair) generated from putty to Login (password less) through ssh in Linux server and it is working well. I am exploring possibility in using my ...
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100 views

Automating setup of the SSH tunnel

I need to frequently login to many machines but I can only login to them from a proxy machine or using an SSH tunnel (by tunneling through that proxy machine). The problem is that I cannot use ...
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Host key verification failed.#015

I am trying to execute a script on a remote computer. Lets call this (Secondary), the script is as follows, for simplicity porposes, #!/bin/bash echo "This is the Remote Machine (Secondary)" > /...
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984 views

I want to create a cron job that runs a command on a remote linux box using ssh but I want ssh to answer password [duplicate]

Thank you for the reply.This is not what I am after. The ssh from server 0 to (1,2,3) (no password) but a remote script on server (1,2 & 4 ) which starts a service/application needs a password for ...
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3answers
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Can a command be executed over ssh with a nologin user?

If a user has loginShell=/sbin/nologin is it still possible to ssh user@machine [command] assuming that the user has proper ssh keys in its home directory that can be used to authenticate? My ...
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99 views

Xorg: Connect remote display

I'd like to use laptop's monitor as second display for my main Debian workstation. I need exactly second monitor, but not Debian's X11 on laptop.
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CentOS with AutoSSH, Port Forwarding Clarification

I'm using autossh and set it up like shown in the following example: http://surniaulula.com/2012/12/10/autossh-startup-script-for-multiple-tunnels/ I found it works really well, but need some ...
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125 views

How do I correctly configure Danted?

I have a debian droplet on digital ocean that I'm trying to get danted to work on. I know I have the right username and password and I want to set up a socks5 proxy with auth. Maxathon gives me a 130 ...
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275 views

Using Rsync to SSH and Find files

Hello I am trying to use Rsync to SSH into a remote server and pull a certain type of file that has been modified within the last 24 hours. Here is what I am trying: rsync -avx --timeout=480 --...
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2answers
749 views

SSH via cert-authority

I'm trying to use SSH using signed certificates. I'm using ssh -i keys/client.key to connect to the target device. If I generate a public key from that private key (with ssh-keygen -y -f keys/client....
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459 views

ssh not using ~/.ssh/config, even after I play around with permissions

I tried modifying my ~/.ssh/config file to allow automatic fast X forwarding as per this site http://xmodulo.com/how-to-speed-up-x11-forwarding-in-ssh.html I then tried logging into a server and ...
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452 views

Why does having cron run a remote command over ssh on a Cisco router get interrupted?

I have been tasked with making sure that if a particular server at work dies, we know about it right away. Because I'm not there (no one is really), I have written a script to run on my home router ...
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Mosh and terminal multiplexing

Reading this Q&A on the site: Can I re-attach to a mosh session? made me wonder about the use cases for mosh. Say I start tmux on my local client, and then mosh to a remote host from within tmux....
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293 views

How to disable GUI for password promt in Gnome

I moved from Xubuntu to Debian and copied id_rsa and id_rsa.pub to ./ssh/ I use a passphrase protected certificate to log in to a remote server. My passphrase contains arrows. Somethin like "Mike" ...
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167 views

How does 'ssh-copy-id' work under the hood?

What does the program ssh-copy-id actually do under the hood? Can the steps be explained as if to a child with a good understanding of computer science? Does it use protocols already existing in the ...
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303 views

SSHD_CONFIG keeps corrupting on reverse SSH setup

I have a reverse SSH setup to traverse an impenetrable CGN NAT. It works well, but the SSHD daemon on the client behind the NAT keeps dieing for unknown reasons (fails to start-up). The client ...