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

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2
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325 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 ...
2
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95 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 ...
2
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0answers
118 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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19 views

How do I prevent just 'exit' from being saved when I close an SSH connection?

When searching for a way to do this on Google, all I can find are ways to quit the session without saving history (like kill -9 $$), but I have the opposite problem. I want to save all of my history, ...
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33 views

Setup SSH tunnel on existing connection from script

I want to establish an SSH tunnel on an existing connection. The tricky part is doing it from a script (a custom shell I need to allow users only some specific things, like setting up this tunnel). ...
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26 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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46 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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23 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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31 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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57 views

How to create reverse dynamic ssh port forwarding

I'm trying to set up an ssh tunnel layout where: client A (not ssh-server enabled) initiates ssh connection to server S socks server is opened on server S:yyyy that tunnels all data via client A ...
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57 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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40 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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91 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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23 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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56 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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59 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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32 views

Dynamic ~/.ssh/config

I'd like make my ~/.ssh/config file dynamically generated by a shell script (or anything else that prints to STDOUT). Is there a UNIX trick to make reading a file result in executing a command & ...
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131 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 ...
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115 views

User Acces restrict to only one folder

I am trying to establsih SFTP User rights at a server to only one folder, following the guidelines here: ...
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466 views

Key-based authentication from PyCharm / JSCH to OpenBSD fails

I am trying to configure PyCharm (java-based IDE) to connect via sftp to a new OpenBSD 5.6 machine with an almost-default setup. However, it keeps returning an error "Algorithm negotiation fails". I ...
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101 views

Fedora 20: irqbalance problems in logs, strange behavior

I'm seeing unexplained network behavior, such as sporadic inability to reach beyond the subnet, passwords rejected for no apparent reason, and SSH attempts constantly yielding that irksome ...
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130 views

How to add PuTTY private key to OpenSSH client

I am trying to setup scp on a new Ubuntu 14.04 system. This system will act as an SSH client to an already configured SSH server on another Ubuntu 14.04 system. I can use putty to SSH into the ...
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75 views

Determine DBUS_SESSION_BUS_ADDRESS from outside the X session

I've got mate-screensaver installed on a machine running Linux Mint 16. On that machine, I can open up a terminal and query the state of the screensaver: dan@box1 ~ $ echo $DISPLAY :0.0 dan@box1 ~ $ ...
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38 views

Giving a user SFTP access only with access to subdirectory outside of home?

I have user [USER A] account which contains scripts and a downloads folder. I would like to create a new account [USER B] so that the user has read/write (SFTP and not full SSH) access to their home ...
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88 views

SSH broken when connected to VPN upon upgrading from Ubuntu 13.04 to 14.04

I need to SSH into a server which is only accessible when I am connected to a VPN (PPTP). Using my Ubuntu 13.03 virtual machine, this works perfectly. First I connect to the VPN, then I ssh into the ...
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42 views

Is it possible to make a symbolic link of a file in other machine?

I have a account in a server and I would like have a symbolic link of some files in my local machine. How can I do this?
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33 views

Is it safe to disable password for a user, if it only uses SSH key login?

We want to remove the password usage on a UNIX system. The users should only log in with SSH key. Not password. So their password field in the /etc/shadow file will be "*" and set their password to ...
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63 views

How to do version-control repository update in crontab?

I'm trying to automate version-control repository update in crontab. The following script /home/usr/mrbean/bin/update.sh works in interactive Bash command-line: #!/bin/bash ...
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257 views

Cannot SSH after switching to Netgear router

I have Comcast Xfinity internet. When I was sent their Wifi router/Cable modem combo box, I was able to use SSH perfectly. However, since the Wifi from the box was weak, I decided to buy my own ...
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386 views

Load a background image or set the background color if Konsole/Shell is running SSH

I want to set my laptop to load an image in the shell's background or set the background color to red if I'm connected via SSH. How can this be done? With a bash function in .bashrc? I have: Set the ...
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61 views

xvfb-run aborting on cluster

I'm trying to run a python script with xvfb-run on a cluster using SLURM; when I use an interactive session (srun) it works fine, but when submitting to a queue (sbatch) it aborts/fails without much ...
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36 views

sshd suddenly wants a passphrase from Linux box, but not from windows (putty)

My Amazon EC2 instance running Ubuntu is no longer letting me ssh in via my local Linux system. I haven't changed a darned thing on either side but now it wants a passphrase and says nope when I ...
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0answers
89 views

Kerberos Forwarding in SSSD

So, I'm trying to set up forwarding with Kerberos and seem to have some problems. On some of my servers I'm able to forward after receiving a ticket; however, some I'm not. My system setup is a ...
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0answers
193 views

Server freezes because of fail2ban

Lately I've experienced some problems with my server freezing or having network problems (I can't really tell which at this point). I'm running OpenSSH on port 443 and it seems fail2ban's anti SSH ...
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252 views

How to setup ssh over USB on an embedded linux device?

I have an embedded linux device with an ARM processor. I am connecting to it over a USB port using minicom. What should I do to "ssh" into the device through the USB connection? I want to setup ...
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176 views

ssh from an unix server to a windows server (running Sysax) fails

We are doing a sFTP from an Unix server to a Windows server and also a ssh, from the Unix server to the Windows server, to execute a file present on the Windows server. These 2 steps worked well. ...
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343 views

SSH Agent Forwarding on server

I'm struggling with the concept of SSH Agent Forwarding. This is what I've done so far: Create default identity local (ssh-keygen) Install the public key on bitbucket Now I want to connect to a ...
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262 views

sudo -u git clone

I'm on Ubuntu server 14.04. I am using apache web server which runs as the www-data. I need to do git clone from a script (a web hook). This script will run with www-data user privilages. Running ...
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76 views

xtightvnc through ssh gateway — connection refused

Following setup: homepc -> gateway -> workpc workpc:~$ tightvncserver :12 homepc:~$ ssh -N gatewayuser@gateway -L 1212:workpc:5912 Now I try to connect via homepc:~$ xtightvncviewer ...
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1k views

SSH & ForwardX11 vs ForwardX11Trusted --> beyond my grasp

I am on Ubuntu 14.04 and trying to get my head around ForwardX11 vs ForwardX11Trusted. My default ssh_config contains the following lines: # ForwardX11 no # ForwardX11Trusted yes Further, man ...
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125 views

MIT Shared Memory Extension or MIT-SHM over ssh

I successfully created a privileged lxc archlinux container on an archlinux host with lxc. I set up a static ip via dnsmasq and ssh into it and I use xauth to forward X11. I then call programs like ...
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126 views

Mount via SSHFS in NFS filesystem

As a student I have access to a cluster of teaching lab computers, at each of the machines all the home folders (including my) are mounted via NFS. I also have a desktop PC. I want to mount my home ...
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212 views

ssh-agent on CentOS 6.5 keeps “disabling” itself

I recently installed git on my CentOS 6.5 system. During the process I setup a key/pair for GitHub so I don't have to enter a password for every git process. I did this by adding the rsa file to ...
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66 views

What information is sent from client to the server when a SSH connection is established?

So let's say I'm on machine A and connect to machine B, and then from there I connect to machine C (with three different usernames). So the SSH connections are: A (john) --> B (eli) --> C(bill) ...
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124 views

Lazy mount of remote filesystem (with sshfs)

I have a remote computer, and I mount its filesystem with sshfs to my local folder ~/user@host, like that: sshfs user@host: ~/user@host Works nice, but I want to implement "lazy" mount: i.e. I ...
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73 views

ssh-copy-id hangs with 8192-bit key

Having a bit of an issue with ssh-copy-id it seems to hang when i try to copy 8192-bit rsa keys accross to an OpenIndiana server. I running OS X as my client OS. Is anyone aware of issues with keys of ...
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38 views

libpam load pam modules at every connection

I want to reduce ssh connection time, by debugging sshd have found that libpam is loading all pam modules specified in /etc/pam.d/sshd file at every connection. How to configure/modifiy libpam such ...
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155 views

ssh local tunnel to VM

So, can anyone explain why this doesn't work? Everything from remote host (192.168.1.3): ssh -L 9000:192.168.1.2:80 login@192.168.1.2 elinks http:127.0.0.1:9000 and I can see a web page. other ...
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146 views

Fix fonts through ssh

There seems to be some problems with the font size when connecting remotely to another Xserver using ssh. I am using manjaro linux and awesomewm. As far as I understand, the local font settings are ...