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

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2k views

Unexpected “authenticity of host can't be established.”

Few months ago, I logged to server1 and scp files to server2. Now I want to do the same, but after the scp command I get message: The authenticity of host ... can't be established. RSA key ...
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307 views

Autofs home directories with passwordless logins

I want a setup where a user home directory is mounted on login (autofs). This is working with password based authentication. However, I want passwordless authentication, by generating public keys. ...
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2k views

Can't Install ImageMagick on Centos using Yum

I am trying to install ImageMagick on my dedicated-virtual Centos server for use with PHP. I first ran the following commands successfully: # yum install gcc php-devel php-pear # yum install ...
2
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33 views

Mount a workstation dir upon login to server over ssh

I'd like to have a local directory be mounted upon logging into a remote server via SSH. So if I were to ssh into foo.bar.com as user baz then there would be a directory mounted in /home/baz/roaming - ...
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230 views

SSH login from external authentication

Here is what I try to accomplish: I have a server with a git repository. I use ISPConfig as control panel for our websites and I want to integrate the ISPConfig API for email authentication as second ...
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311 views

Why is my /etc/hosts.deny file being ignored?

I am using a small embedded linux setup generated by buildroot to run on a x86 device. It was generated to use busybox init system and also runs dropbear so I can ssh into the device. I wanted to ...
2
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777 views

Get screenshots of a Linux machine that I connect to remotely with PuTTY

My setup is this, I connected my Cent box via PuTTY on windows 7, I've Xming and using X11forwarding to have GNOME in windows. Now when I did gnome-screenshot in putty, I cannot have the CentOS ...
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134 views

SSH + Certificate Authority server?

Is it possible to setup SSH (via pam for instance) to check the public key of the connecting client against a CA server? I've tried with gnupg (via gpg-agent --daemon --enable-ssh-support) and also ...
2
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301 views

Webmin alternative that installs & runs on the client machine & communicate via SSH

Are there any Webmin alternatives that don't consume server resources but instead install on client machine & communicate via SSH client. So effectively all the actions made on that GUI are ...
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332 views

Mint changes default route when eth0 comes back and breaks existing tcp connections

I have two interfaces on my laptop (eth0, wlan0). lets say I am moving away from desk and connecting to an internal network A using openvpn software which uses wlan0 as gateway. I then ssh to a few ...
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3k views

ssh-agent not getting set up (SSH_AUTH_SOCK, SSH_AGENT_PID env vars not set)

I set up a new user account for a friend on Kubuntu 12.04. When he uses ssh he gets this error: Could not open a connection to your authentication agent We're running ssh in some bash scripts. ...
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2k views

How to run ssh -t user@remote 'sudo nohup bash -c “comand”' in background

I want to run a script on a remote host with sudo privilege, someone suggests that I should use nohup and ssh -t, like the following command: The script ls; sleep 10; echo finish is crafted here to ...
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83 views

Why isn't hydra being disconnected?

I have SSHD running on port 5800 on some machine. (It is a my machine at home.) If I run this manually in a terminal: # ssh someIP -p 5800 The connection is lost because I am disconnected after 3 ...
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371 views

Making ChrootDirectory directory writable by SFTP user

If a user logs into a machine via SFTP, one can make use of ChrootDirectory keyword to give an illusion that user is in a root directory. But that directory is only writable by root user. I would love ...
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101 views

No communication services enabled following startup

I recently installed Parsix (Debian) on my system, and I've been struggling to figure out how to autostart my services. Of the list of services that don't run and should run are: ssh apache mysql ...
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1k views

How to set ssh access for user on debian?

I set groups: usermod -G ssh username and then I've checked account info: id username the result is: uid=1000(username) gid=1001(username) groups=100(username) Anyway if I try to login using ...
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121 views

Why do I get a different RSA fingerprint when multihopping using ProxyCommand

I'm using the following config to connect to multihop to the target host (gw2 and target have my public key stored in the authorized_keys file ; no netcat on all systems): Host gw1 HostName ...
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31 views

How to use tty allocation to run GPG through SSH?

I am trying to encrypt and sign a local file using a distant GPG installation via SSH: pv file | ssh -tt [ssh server] gpg -se -r [receipt key] > file.gpg Using the double t option removes the ...
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85 views

Give a user permission to one folder

I have made so my group "sftponly" can access the users home folder. But right now the user in the group don't have permission to other folders, but they have permission to see them. How can I do so ...
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36 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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15 views

How do I use the “screen” command if I don't know what the ps or tty the program came from?

I am making a python program that launches on bootup, and I would like it so that I can interact with that program via the "screen" command, so that if I need to talk to the progarm via a different ...
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12 views

GUI SELinux security alert window don't shows up?

I created an error I broke ssh service on my system to see why security context must be properly configured. I used next commands: # service sshd stop # chcon --reference /root/anaconda-ks.cfg ...
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110 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 ...
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29 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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69 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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33 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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136 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: ...
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184 views

SSH: Permission denied, please try again

I need to connect to a server and don't know whats going on: me@pc:~$ ssh -v server OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /home/me/.ssh/config debug1: ...
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65 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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34 views

Correctly closing multiple hop SSH tunnel

I want to tunnel VNC traffic to host2, which is only accessible from host1, whereas host1 is publicly accessible. I setup a multi-hop SSH tunnel as described in this question, using: ssh -L ...
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32 views

Run ssh-agent 24/7 using keychain?

I have a Node.js script that requires ssh-agent to be running 24/7 on my Ubuntu server. I installed keychain and put eval 'keychain --eval id_rsa into my ~/.bash_profile, but that only runs when I ssh ...
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1k views

ssh does not get host key

I have a PivosXios-DS-M3 XBMC-Box, wich run xbmc12 until yesterday. All my desktops run Archlinux. Yesterday, I did a fresh install of tofu-linux to the Pivos-box (Kodi 14.1). Thus, on my arch ...
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53 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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59 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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174 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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88 views

Persistent SSH port forward without public keys

Problem I haven't found a solution to run an SSH port forward in a reliable and persistent fashion, when the server you are connecting to does not support public-key authentication. Question What ...
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0answers
10 views

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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41 views

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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43 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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74 views

Restrict SSH access to git usage only

Using: ssh-keygen -O force-command="/bin/restricted-command", or command="/bin/restricted-command" at the beginning of an authorized_keys line one can force a key-based SSH connection to execute ...
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79 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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50 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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71 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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113 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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242 views

openssh-server doesn't start in Docker container

I am having a weird problem. I am not able to ssh to docker container having ip address 172.17.0.61. I am getting following error: $ ssh 172.17.0.61 ssh: connect to host 172.17.0.61 port 22: ...
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170 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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46 views

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 ...
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139 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 ...
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104 views

Streaming Qt over ssh

I am trying to stream a program over ssh and it doesn't work. It is written in qml and I've already compiled it, but qmlscene doesn't work either (doesn't matter what file). The error I'm getting is ...
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283 views

GLX extension missing on display “localhost:10.0”

I have installed scilab 5.5.1 on rocks based cluster(with GPU card & nvidia driver installed), and i am able to successfully use scilab on the same . Issue arises when i need to use scilab from a ...