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

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2answers
139 views

Is it necessary to disown a process for it to continue running after disconnecting?

Would someone be kind enough to explain if & why disown is necessary if you wish to keep a job running even after you disconnect. I ask because every site I have visited says to use disown and bg ...
109
votes
8answers
54k views

How can I disown a running process and associate it to a new screen shell?

I have a running program on a SSH shell. I want to pause it and be able to unpause its execution when I come back. One way I thought of doing that was to transfer its ownership to a screen shell, ...
0
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1answer
29 views

Protecting account ssh keys from root

How can users ssh private keys be protected from root stealing and attempting to brute force them? I cannot use selinux as the vendor will not support the app when it's in use? Thanks
0
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2answers
65 views

Script for ssh automatic login to a specific port

So currently, the "traditional" way to connect through SSH is the following one: ssh USERNAME@HOST -p PORT I would like to create a script in which I will include all the appropriate information ...
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2answers
35 views

ssh linux to mac inside and outside lan

Hi this is my first post and I was wondering if anyone can help me? I have ubuntu on my home pc and I want to be able to ssh to a macbook. When they are both on the same wifi network it's no problem, ...
2
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3answers
41 views

How to log into a single SSH host without passphrase?

I usually have to access a couple of remote and local SSH hosts, this works perfectly, I actually want to have to type in the passphrase every time. However, there's a single SSH host on my local ...
0
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2answers
55 views

My ssh key doesn't work, permissions look good [duplicate]

My permissions look like this: -rw-------. 1 smpadmin staff 400 May 21 2014 id_rsa.pub -rw-r--r--. 1 smpadmin staff 505 Dec 14 19:19 known_hosts drwxr-xr-x. 45 smpadmin staff 4096 Jan ...
0
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1answer
64 views

want to ssh to a server behind NAT from a host also behind NAT

I want to ssh into a server at my home which is behind NAT enabled router from my laptop when I'm away, say whlie using a public wifi. Obviously, neither local nor remote port forwarding will work. ...
1
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1answer
730 views

Why SSH login works in shell but fails in all third parties via ssh tunnel?

I'm using ssh to log in (prompt password first time) on a remote server. In shell, using this command: ssh root@myserver.com works well! But all other db software applications that I tested ...
0
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1answer
52 views

ssh authentication and remote command output's redirection

I need to run a remote capture on a host via ssh and to authenticate twice, but the second prompt is being redirected. ssh -t user@host "sudo tcpdump -s 0 -n -w - -U -i eth0 not port 22" > ...
0
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2answers
1k views

tmux with iterm2 attach a remote session

I'm using the Tmux integrating with ITerm2, which can create a tab in ITerm 2 for each window created by Tmux. But somehow this doesn't make much sense for the usual SSH scenario, where we first SSH ...
2
votes
6answers
348 views

Can I use KdirStat over SSH?

I have a headless server running Centos 5.9. I can only SSH into it, is it possible to use KdirStat or a similar tool to get a graphical view of disk usage?
0
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1answer
13 views

How do I apply a manifest from a Puppet Master server to a Puppet Agent node server?

I installed Puppet Agent on a CentOS 7 server. I installed Puppet Master on a different CentOS 7 server. I'm using the free version of Puppet on both servers. The Puppet Agent server requested a ...
4
votes
1answer
467 views

What the devil is overriding my path on SSH login?

I have a server running a Gogs instance (a self-hosted github clone). I recently did a manual upgrade, and moved a bunch of things around, including changing the username that the remote users log ...
8
votes
3answers
2k views

command line method or programmatically add ssh key to github.com user account

Is there a way to identify with a username and password to github.com servers for the purpose of adding an ssh key to the github user account? So far everything I've read suggests that a user's ssh ...
1
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1answer
26 views

what happens to remotely run process when remote host disconnects?

Say, I ssh into a remote host, initiate few processes on it and disconnect before the processes terminate. What happens to the processes? Do they continue?
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0answers
22 views

How can we send CTRL+C to a new SSH connection?

How can we, at earliest send CTRL+C when connecting to an SSH server? So I am the client, I connect to an SSH server, but I want to send CTRL+C, right after login. But I need to log in, just send ...
5
votes
3answers
12k views

SSH tunnelling with multiple dynamic port forwardings

I am trying to monitor multiple JVMs running on different servers through an ssh tunnel. Thanks to one of the UNIX gurus here, I have managed to get this running for a single server by: Run jstatd ...
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1answer
30 views

Infinite loop one liner for pen testing

A bunch of years back I found this one line of bash script that basically would overload a linux system. All I can remember is that it looked something like this and had the pipe (_(:;){:()|:()}); ...
3
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2answers
36 views

How much RAM should an SSH connection typically use?

I'd like to ask about how much memory an SSH connection should take typically. Here is how I'm finding out how much of a RAM hit is incurred: Kindly don't get vehement that I'm using a GoDaddy shared ...
1
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1answer
1k views

ssh tunneling: connection closed by foreign host

I'm trying to create a scenario to test a simple ssh tunneling, just for using a simple telnet. I have two hosts: ubuntu and suse. Both of them have the other hostname on /etc/hosts file for address ...
0
votes
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 ...
2
votes
1answer
725 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 ...
16
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10answers
52k views

Automatically run commands over SSH on many servers

There is a list of IP addresses in a .txt file, ex.: 1.1.1.1 2.2.2.2 3.3.3.3 Behind every IP address there is a server, and on every server there is an sshd running on port 22. Not every server is ...
3
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2answers
37 views

Multi-hop socks proxy, how to?

I'm starting from a suggestion to use jvisualVM via SOCKS. However, I have a somewhat complex topology. Starting from my laptop, I have two intermediate hosts to get through to reach the machine I ...
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0answers
21 views

Remotely start LXDE via SSH

How can I remotely (e.g. via ssh) start lxde on my linux box which has no keyboard and mouse but only a monitor attached to it? I can login via ssh fine.
1
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2answers
960 views

Debian autossh boot script not working properly

I wrote the start script at the bottom of this question to try to get one of my devices to automatically create several remote forwarded ports with my VPS upon boot. (I've stripped the LSB tags to ...
0
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2answers
20 views

Running shell job on remote server, closing terminal without closing job

I am running jobs on a remote server using torque. I currently have a an annoying problem. When I run my jobs this is what I currently do: Log into another computer via Teamviewer From that ...
2
votes
1answer
31 views

cat [file..] pipe another cat command

cat ~/.ssh/id_rsa.pub | ssh user@123.45.56.78 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys" can someone explain how the quotations works. From what I understand. I am reading ...
14
votes
5answers
21k views

Automated ssh-keygen without passphrase, how?

I would like to make an automated script that calls ssh-keygen and creates some pub/private keypairs that I will use later on. In principle everything works fine with.... ssh-keygen -b 2048 -t rsa -f ...
4
votes
1answer
34 views

Unlock the encrypted Volumes after restarting the server via SSH

I used the sudo shutdown -r to restart my Mac server via SSH. However, after restarting the server, I discovered that two volumes are offline due to encryption. What I am trying to do is input the ...
4
votes
1answer
3k views

Force ssh to always use SSH_ASKPASS

I want to force ssh to always use the program specified by SSH_ASKPASS. In my case the program is just a bash script returning the passphrase. The problem is, as the ssh documentation says: If ...
3
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2answers
67 views

How to monitor WGET download progress after closing SSH session

I have started downloading my ISO's etc directly to my fileserver using wget. After I close the ssh session, how can I check back on the download process? Scenario: I start the download, then shut ...
0
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0answers
28 views

ssh some commands through (a variable amount of) intermediary hops

(I hope I did search the se sites correctly to avoid duplicates: I did not find a similar question/need, and most similar questions only hop through 1 hop) : the need: I need ideas to create a way to ...
0
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0answers
16 views

Getting stuck in overwrite mode in Tmux

I'm connecting to a remote server from Windows using a variety of ssh clients: Putty, MobaXTerm, FireSSH. I'm doing something, I don't know what, that puts me permanently in overwrite (insert) mode in ...
3
votes
3answers
218 views

Does temporary disconnecting of ssh session affect a running program?

i found that if my internet connection is disconnected during a ssh session to a remote Linux server, and then reconnect within a short time, the ssh session is still alive. If I am running a program ...
1
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1answer
25 views

Confirming that a reverse ssh tunnel has been established

I have a reverse ssh tunnel established between a client and a server computer. The client connects on the server on port 22, and creates a reverse ssh tunnel on port 4030. After the client computer ...
8
votes
6answers
5k views

How to rsync files between two remotes?

I would like to transfer files between two remote hosts using on local shell, but it seems rsync doesn't support synchronisation if two remotes are specified as follow: $ rsync -vuar host1:/var/www ...
1
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0answers
36 views

Windows directories keeps getting unmounted on two identical Red Hat servers

We have a pretty severe problem at my research center. I have, together with IT, set up an infrastructure like this: Users use their laptops at their desks. They all have a home-folder at a storage ...
19
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5answers
24k views

how to avoid ssh asking permission?

We are attempting to speed up the installation of oracle nodes for RAC installation. this requires that we get ssh installed and configured so that it doesn't prompt for a password. The problem is: ...
5
votes
2answers
30k views

Unable to resolve hostname

So I try to do: ssh $(hostname) and it tells me: ssh: Could not resolve hostname woofy: Name or service not known It knows that its own hostname is "woofy"; why can't it connect to itself?
0
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0answers
24 views

ssh_exchange_identification: Connection closed by remote host issue

I am facing issue with one Linux machine as sometimes I am getting below error when I try to open ssh session: workspace/mtas-vcsh-st-execute-tsp>ssh telorb@10.64.90.187 ...
0
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0answers
34 views

How do i connect to a remote server using the ssh key of the remote server from my local

I have connected to a remote server from my local server by using the public key of my local system on the remote server. However, I have a situation where I will not know the remote server until the ...
1
vote
1answer
37 views

How can I use the host's keyboard for a 'remote' SSH session from a tablet computer?

The perhaps slightly odd requirement is this: I have a computer/laptop running Ubuntu I have an iPad from which I can SSH into said laptop sitting right next to it I'd like to use the iPad as an ...
0
votes
2answers
41 views

Combining two scripts into one

I have two scripts. Both scripts are on the same server (serverA) The first one (serverA) makes an ssh connection to the other server (serverB), and executes the second script, e.g *script1* ssh ...
1
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1answer
892 views

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 ...
2
votes
3answers
840 views

Does /var/log/secure log successes?

Short one that I've been unable to find a decent answer for. Centos 5.10 server, trying to trawl through all the logs I can to see what IPs successfully accessed the server. I've been mucking about ...
12
votes
5answers
41k views

How to make putty to not break my session after some time?

Each time putty is breaking session after some time if I am doing nothing. There is no any time parameter on putty so how can I stay my putty ssh session always Alive ?
6
votes
1answer
1k views

How do I prevent ssh remote login from breaking dbus?

I'm running openSUSE 11.3 on my workstation at work under KDE, I don't have root access to it. The default shell has been set to tcsh. When I am logged in at my workstation and log in remotely from my ...
1
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1answer
1k views

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 ...