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

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0
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2answers
27 views

.sh query - running a ssh task

This is on a macintosh but it's still unix command. I am running some computers on a network that have file sharing turned off because of security so the only way to connect is via ssh. I need to ...
-6
votes
0answers
25 views

ssh connection without password is not working [on hold]

ssh connection without password is not working even though I copied pubkey. I followed these steps http://www.linuxproblem.org/art_9.html. And please find the debug log below, debug1: ...
0
votes
1answer
23 views

SSH - How To Make Three Computer Tunnel?

ComputerA connects though putty to Server at port 77, and there is a reverse tunnel set up from the Server at port 6666 to ComputerA at port 22. ComputerA also has a ssh server set up with a user ...
2
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0answers
23 views

When using an SSH alias, why is SSH ignoring my (valid) Kerberos ticket?

I am successfully connecting to my university's network via ssh with Kerberos ticket authentication. Normal, verbose operation (kinit a ticket, then ssh user@hostname) works fine. The Problem When ...
47
votes
7answers
73k views

Uploading directories with sftp?

I'm having some trouble uploading directories(which contain other directories a few levels deep) by sftp. I realize I could work around this by gzipping, but I don't see why that's necessary. Anyway, ...
2
votes
3answers
31 views

linux + ssh + perform two tasks in one ssh and print to CSV

the following command print the two values in one ssh shut ssh test01 "hostname && cat /etc/sysconfig/rhn/rhnsd " test01 INTERVAL=240 but how to change the syntax in order to print the ...
5
votes
2answers
4k views

How to connect two computers via internet with ssh?

I want to connect another computer via internet that doesn't have a public IP. Is there any away to do this?
1
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1answer
308 views

nmap doesn't appear to list all open ports

My rental Linux server doesn't respond to nmap the way I thought it would. When I run nmap it shows three open ports: 80, 443 and 8080. However, I know ports 2083, 22 and 2222 should all be open, as ...
33
votes
5answers
123k views

ssh_exchange_identification: Connection closed by remote host (not using hosts.deny)

I'm not using hosts.allow or hosts.deny, further more SSH works from my windows-machine (same laptop, different hard drive) but not my Linux machine. ssh -vvv root@host -p port gives: OpenSSH_6.6, ...
0
votes
0answers
14 views

wget probelm with a tunnel connection using ssh

I know this is not a new question, but I have researched a bit and so far none of the answers I've seen gave me the answer. I have this situation: I´m working on a campus where the network is highly ...
2
votes
0answers
10 views

mosh-server needs a UTF-8 native locale to run

I am trying to connect from my Gentoo to RHEL server. Both have mosh installed, however I get this error: petanb@localhost ~/Documents $ mosh root@server mosh-server needs a UTF-8 native locale to ...
1
vote
0answers
28 views

Check if laptop is asleep

Does anyone know to check via SSH or bash script whether or not my laptop has "fallen asleep". For some reason whenever my laptop falls asleep my drawings (on /dev/fb0) are over ridden by the ...
0
votes
1answer
18 views

Does the default per user .ssh/config file override all options in system wide ssh_config? [duplicate]

The ssh man page says that the -F switch: Specifies an alternative per-user configuration file. If a configuration file is given on the command line, the system-wide configuration file ...
1
vote
1answer
38 views

ssh-agent: How to keep the login key, and add more identities?

When I log in to my local Ubuntu 14 instance from Windows (I use SecureCRT as a SSH client) using my RSA key, the key is available for forwarding for further SSH sessions (it is listed with ssh-add ...
1
vote
3answers
20 views

Unison - login over ssh with different username at remote server

I am trying to set up Unison and am testing the connection. I run this command from the documentation: unison /var/www ssh://192.168.1.102//var/www but it tries to log into the remote server using ...
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 ...
2
votes
1answer
24 views

Stealing and reattaching a running process [duplicate]

It's sunday and I left an instance of R running in the office. The script finished running, and I would like to save my workspace without going to the office. I can ssh to the computer, but I have not ...
1
vote
1answer
109 views

Being Prompted for Password After Already Registered Public Key On server

NOTE: This is not a duplicate to the popular question. Why am I still getting a password prompt with ssh with public key authentication? I had an original post but I did not get much answers helping ...
1
vote
2answers
53 views

“SSH Virtual Kiosk”. Does “PermitEmptyPasswords yes” work? - How to make ssh user with empty password, so random users can use it?

How to make properly secure ssh account with empty password for running trusted binary? I'd like to make a kind of "virtual ssh Kiosk" for random users, while limiting "demo app" behind ssh ...
0
votes
1answer
29 views

Script for connection with ssh then command once connected

I need to write a script that connects to a remote server, then once connected, connects from there to another server, then changes directory. The following of course does not work (it connects to ...
1
vote
2answers
14 views

Host key verification failed (exit code 255) while using pdcp

I am trying to install a particular software across all our machines one by one so I decided to use pdsh. By default, it will operate on several machines at once in parallel, but I will be using the ...
2
votes
2answers
13k views

can't ssh into remote host with root, password incorrect

I have a remote host, previously I can ssh into it with root and password ssh root@remote_host or I ssh into it first using a regular user account ssh esolve@remote_host and then su root and ...
1
vote
3answers
314 views

the difference between '..' and “..” when I use ssh usr@ip 'pscp …'

My Server machine run Window,and it installed Cygwin. My Client machine run linux. In Clinent machine.I do this: [sikaiwei@login-1-2 v1.4]$ bash test.sh CHUN~19900405 ...
0
votes
1answer
27 views

Impact of removing ssh_config file

Pretty new to Linux here. Trying to get a better grip on the OS.  Here is my problem - I have a question about the impact of removing ssh_config file from a Linux box. I was having some cipher ...
1
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3answers
32 views

How to understand ssh-keygen and ssh-copy-id?

As far as my understanding, machine(A) ssh-keygen generates a key, and ssh-copy-id gives this key to another machine (B), is it? But when this is done, to test whether this is done or not is using ...
2
votes
1answer
59 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 ...
3
votes
2answers
29 views

How can I auto-close dropped SSH connections?

When I work on my server remotely, sometimes my SSH connections get dropped due to network issues. When I re-connect to my server, the dropped sessions remain open. I can see them when I run w. I'm ...
13
votes
6answers
17k views

ssh returns message “X11 forwarding request failed on channel 1”

When I ssh into a remote server that's not running any type of X11 desktop environment I get the following message. $ ssh user@server X11 forwarding request failed $ ssh user@server ls X11 ...
2
votes
1answer
1k 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
votes
1answer
758 views

SSH to Linux Container from Other Machine

I am trying to learn about Linux Containers and this is my first encounter with servers, ssh and many other things that I do not know the terms yet. I create five different containers and authorized ...
0
votes
0answers
25 views

Can't ssh into my server from another computer

I used to be able to ssh into my server from other computers. But I stupidly messed up my remote connection setup a couple weeks back (I don't remember what I did...) and now I can't ssh into my ...
1
vote
1answer
26 views

cannot get screen command to execute code containing DISPLAY=:0

I am trying to ssh into a remote machine and run a shell script, which opens a GUI. I want the GUI to open on the remote machine and remain open (so I am using DISPLAY=:0 nohup). I tried: ssh -t ...
0
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0answers
12 views

Need to fix user access on centos

I screwed up user permission for my account "yann" on a centos 7 server. I would like to have that user to access rw on all folder under /home to manage the webserver folders. Each top level folder ...
4
votes
2answers
547 views

Can emacs use gpg-agent in a terminal at all?

I understand that there are problems with getting pinentry-curses to work with emacs (see some of the comments on http://emacswiki.org/emacs/EasyPG), and so using emacs in a terminal isn't compatible ...
0
votes
1answer
3k views

Nohup process not running into ssh

I have a question on the use of nohup in an ssh session. During more than three years my java software executed the following command daily using a remote ssh session: cd some_path; chmod 777 ...
1
vote
2answers
3k views

PHP exec command has the result 0 even if an error occurs

I have this PHP code: $execout=exec('ssh root@xxx.xxx.xxx.xx "sudo /etc/init.d/smokeping reload"',$output1,$result); if($result !=0){ echo"that can't reload"; } else{ echo "successfully ...
0
votes
1answer
55 views

ssh key_load_public: invalid format warning

SSHing into my system succeeds but even without the -v flag I get key_load_public: invalid format message. Below is the output w/ using the verbose flag. Specifically debug1: key_load_public: No ...
0
votes
2answers
43 views

linux_startscript.sh: 14: linux_startscript.sh: Syntax error: “(” unexpected

I'm trying to start a multiplayer server on my server. I´ve transferred the files to the server and tried to execute them with these commands: cd /home/user/RisingWorld/ sh linux_startscript.sh but ...
1
vote
0answers
53 views

Problem with ssh connection [closed]

I need to connect to my computer via ssh. I have to use VPN, because the remote machine is my computer at my workplace. I have no problems with using VPN. So, I installed open ssh server from the ...
3
votes
1answer
618 views

How do I push a Mercurial repository to BitBucket over ssh? [closed]

I created a public key for ssh and registered that key with BitBucket. I then attempted to push: $ hg push ssh://jhayward@bitbucket.org/johncharrell/[project name] pushing to ...
0
votes
3answers
30 views

nothing happens when I try to ssh [closed]

When I try to ssh into my work server, the command just gets stuck. The command doesn't return anything. When I strace'd it, it seems like its stuck mid-execution. I know it is a problem with my ...
12
votes
2answers
24k views

Meaning of “Connection closed by xxx [preauth]” in sshd logs

We have a Windows batch script, which connects automatically to a linux server via PLINK (putty). There is NO public private key authentication, the user and the password are in the script. On our ...
0
votes
2answers
21 views

Can't start remote WildFly with ssh

When executing remote script with SSH: ssh user@192.168.0.10 -t sudo /etc/init.d/wildfly start WildFly not started. If I run ssh user@192.168.0.10 -t /home/user/my.sh my.sh: !#/bin/bash sudo ...
2
votes
3answers
1k 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 ...
3
votes
2answers
79 views

Is there a one liner which can list public key fingerprints with authorized_keys as input?

I'd like to audit the authorized_keys file on a number of servers and match them with known AWS key fingerprints. Is there a one-liner which incorporates ssh-keygen -lf which will output the ...
2
votes
1answer
36 views

How to track ssh connection time, disconnection time and idle time?

How can I track ssh sessions on my server including ssh connection time, disconnection time and idle time? Here's what I have for connections: cat /var/log/{auth.log,auth.log.1} | grep -i Accepted | ...
4
votes
4answers
10k views

What is pageant for Linux? Saving SSH private key passwords

I want the computer like pageant, to show a SSH password prompt during boot time. I have my private keys stored in a Dropbox between 3 computers of which 1 is now Ubuntu. I have googled for 2 hours ...
3
votes
2answers
36 views

Feedback when entering passwords, without revealing length

I often SSH into a machine and use sudo on it. When entering passwords, I'm always afraid that another window will steal the focus. However, I don't want to display asterisks (with pwfeedback, for ...
32
votes
6answers
3k views

Linux equivalent to PowerShell's “one-to-many” remoting

Coming from Windows administration, I want to dig deeper in Linux (Debian). One of my burning questions I could not answer searching the web (didn't find it) is: how can I achieve the so called ...
1
vote
2answers
44 views

Why does SCP fail when “RequestTTY force” option is enabled?

In my SSH config file, I have to enable the RequestTTY force for some important reasons. And currently my config file looks like this: Host x.x.x.x HostName yyyy StrictHostKeyChecking no ...