SSH, otherwise known as "Secure Shell", is a method for securely connecting to a remote computer.

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SSH to local ip in external network

I know there is a lot of information about this subject but still I do not understand something. We have internal wiifi network that include 4 desktops, each one has internal local ip address. The ...
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16 views

SSH connection refused/error message

I have a setup of systems, where each system has multiple users but only one user is allowed to login to a system at a time through SSH. I am using "passwd -l/-u" command to lock and unlock users, ...
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17 views

shh-add does not find ssh-agent in .profile only

In Ubuntu 14.04 running Nautilus, I want to add a ssh-key without passphrase in my .profile with cd .ssh ssh-add mykey cd .. On (graphical) login, however, I receive a message, that ssh-add cannot ...
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1answer
40 views

Who is telling me “You have mail”

On a server running Ubuntu 14.04 I see "You have new mail" in the motd every time I log in via SSH. Q: Who is telling me this? Mail does not find anything, and I do not expect any mails on this ...
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1answer
18 views

Is it possible to specify a different zshrc file on login over ssh?

I spend all day ssh'ing into servers for work and the remote user is one that is shared by myself and several colleagues so I can't just blindly customise the shell as not everyone will want my tweaks ...
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14 views

What remote host allows tunneling thru ssh with public key and password?

I need a virtual desktop that can only be accessed by having the ssh public key and the user password. I was trying remmina but it does not seam to support the dual authentication of public key and ...
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1answer
19 views

error while using git clone

I'm trying to use git clone to clone a forked project for compiling. The input/output are as follows: preet@Preet-HP-620:~/clones$ git clone git@github.com:Preet23/android_vendor_resurrection.git ...
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2answers
25 views

How to access a RUNNING remote desktop

here is my problem: I have been working the whole day (on my office computer running Ubuntu) on a text document using a text editor (kile) when I came back home, I tried to copy the (newer) version ...
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2answers
32 views

How to insert data from text to mysql? [on hold]

I get this text from router via ssh. But I want to insert user(fr-XXX) and macadress(F0:24:75:33:22:11) to mysql routerusers table. Flags: M - mac-cookie # USER DOMAIN ...
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1answer
22 views

Packet redirection based upon traffic type

Overview : Is there anything like ufw or iptables that will accept a packet on a port, but then redirect that packet locally depending on the type of packet it is? More info : I have a web server ...
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2answers
30 views

How do I get openssh 6.9 or greater and Apache2.4.12 or greater on to my 15.04 server?

I am trying to comply with government requirements and need to keep my 15.04 server up to date. Mostly 15.04 has recent packages. Can I upgrade Apache on the command line? I need openssh 6.9 or ...
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8 views

Set up BOINC through SSH and configure for multiple computers

I want to set up BOINC for SETI@home or other distributed computing projects. I have three or four computers with Lubuntu, but I would like to set them all up through a script instead of ...
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27 views

ssh connection to xxx closed by remote host

I have a admin server A which have root ssh trust for all other servers, and A can ssh most other servers without password, but for server B, it always says connection to B closed by remote host. ...
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0answers
7 views

Why am I getting permission denied (error 3) in WinSCP when I'm the only user and it's my home server?

I just setup a Linux home server using this guide http://linuxhomeserverguide.com/ and I am now trying to write to my /var/www/html folder because I want to make a website. I forwarded port 80 and ...
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26 views

What systems/remote desktops allow remote unlocking and locking

I have a very good desktop running ubuntu 15.04. I have a 2gb chromebook for developing on the go. The chromebook is not powerful enough to do what I need, so I need to be able to unlock my pc ...
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1answer
35 views

“Network error: Connection refused” in Putty when I'm trying to connect to my remote home Ubuntu server

I just set up a linux home server using http://linuxhomeserverguide.com/. I can connect to it from my desktop PC at home via putty using a local ip like 192.168.1.2 (just an example ip), but I want to ...
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1answer
15 views

Could not find id_rsa.pub

I am under cloud Ubuntu 12.04.5 LTS. And I couldn't find id_rsa.pub file. $ ls -ll ~/.ssh total 12 -rw------- 1 root root 4435 Jul 22 11:15 authorized_keys -rw-r--r-- 1 root root 2660 Jul 22 15:45 ...
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1answer
82 views

scp, where did my files go?

I logged in with ssh, into a pc in our lab. I would like to copy a .txt from there, to my laptop in home. So I did: root@hostname:/home/gsamaras/konstantis/cholesky# scp ...
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14 views

How to check if a switch is configured in 'ssh' or in 'telnet' using perl script provided the switch IP is available…?

In a perl script, when a switch IP is available, it is required to know if the switch is configured for 'ssh' or 'telnet' for continuing execution. How can this be done..? Please help it...
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8 views

Can't boot Ubuntu after 'reboot now'

I was connected to one of my servers via SSH when in the local PC I did reboot now. Since then I can't boot Ubuntu on the server nor connect via SSH from the local PC. I read that reboot now is not ...
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2answers
16 views

system log question- auth.log

I'm pretty new here. I was looking at my system logs and noticed this: Jul 21 00:57:47 htpc sshd[13001]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= ...
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1answer
23 views

The simplest way to implement a VPN?

I have a headless machine running Lubuntu that I'm using a file server. I already SSH into it, and use remote desktop from within my local network to do any maintenance I need, either on the desktop ...
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44 views

ssh: connect to host HOSTNAME port 22: Connection timed out

I have trouble connecting to a server with ssh from my Lubuntu 14.04 computer, although it can be done from other machines. I can't get to the address online either (others can). Am currently using a ...
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19 views

Playing Rhythmbox through SSH

I am trying to start Rhythmbox by remotely accessing my Ubuntu 15.04 machine through SSH. Problem is when i create a new instance of Rhythmbox and play it, it works fine. Here is how i am doing it. ...
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1answer
25 views

E: Package 'openssh-client' has no installation candidate

How to install openssh cilent and server on ubundu 13.04. i tried sudo apt-get install openssh-client on 13.04, but i got this error. i could not install it. mphil@mphil:~$ sudo apt-get install ...
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38 views

How do I restrict a specified SSH user to connect only from one IP or hostname?

I have a monitoring server that requires the SSH connection details of a non-sudo user account of each box it monitors. Is there a way that I can configure a specific user account such that it can ...
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4answers
260 views

How can I redirect SSH users to another SSH login?

I have a person who will need access to my SSH server, but I want them to have limited access to programs. All they should be using is ssh, to login to another server. My server is an access point to ...
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1answer
44 views

Cannot open local files using Gedit over SSH

I tried to start gedit on one of my servers by running: `ssh test@test-server gedit and it runs, but it displays the filesystem of my server and not my local system. How can I get gedit to show my ...
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2answers
187 views

Nothing comes up with I try to change the SSH port

I'm trying to change the port number, and I've found a few answers on here from the past, most saying that you should use the following code. nano /etc/ssh/sshd_config or modify ...
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1answer
26 views

Permission denied for *.pem file

I have *.pem and *.ppk file for my server I tried to ssh into it using that. But it showed permission Denied. I took verbose log for that. But I am not able to understand why it said permission ...
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25 views

EC2 - chmod: cannot access ‘mypemfile.pem’: No such file or directory

I download pem file while launching t2.small instance. When I try to connect it via ssh it say no such a file in directory. But am sure that pem file is in directory. $ ls mypemfile.pem ...
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23 views

chromium browser remotely launched error

I logged into a remote server using the -X option in the ssh command. After trying to open the chromium browser i get the following error: $ chromium-browser Gtk-Message: Failed to load ...
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1answer
17 views

evince running remotely critical error

I logged into a remote server using the -X option in the ssh command. After trying to open a pdf file with evince i get the following error: ** (evince:4568): CRITICAL **: ...
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18 views

ssh stalls at debug1: SSH2_MSG_KEXINIT sent

So I try 'ssh -v server' and it stalls at: debug1: SSH2_MSG_KEXINIT sent which seems to be because the destination is not accepting my connection? I can ping the server though! (I do $ping host_ip) ...
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1answer
21 views

Hostname of machine changed unexpectedly to mongodb after reboot

I have mongodb 3.0.4 installed on my Ubuntu 14.04 machine, and after I did a reboot I noticed that the hostname changed to mongodb. Indeed I see myuser@mongodb instead of myuser@myhostname as it was ...
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15 views

Terminal: have same session over ssh [duplicate]

Is there any way by which I can have the same terminal session on two PCs connected through ssh? That is, If I run some command over PC1 terminal, the same should be shown on PC2 terminal.
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1answer
20 views

SSH connects with old hostname

I changed my hostname on my Ubuntu (12.04) computer but my CentOS computer still connects to it using the old hostname. How can I make it so that I can type: ssh new_hostname instead of : ssh ...
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10 views

Workstation Desktop Shortcut Icon to a Windows document server

I am New to Ubuntu. I've searched all kinds of FAQ's and Forums, but have yet to obtain a simple answer to these questions. Probably a typical situation for a new Linux User. Here are my ...
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2answers
98 views

How to authenticate myself as root over rsync+ssh into a remote server?

I am trying to use the rsync command but I am getting "permission denied" because the pi user hasn't permission to write without the sudo command I am trying to move my apache2 folder from 10.0.2.2 ...
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20 views

Reverse DNS Lookup on ubuntu inside virtualbox

I'm using Ubuntu 12.04 inside virtualbox on win7 using NAT for networking. I had to run the command : VBoxManage.exe modifyvm "Ubuntu" --natdnshostresolver1 on Which basically tells the guest to ...
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2answers
89 views

Ubuntu Server 15.04 how to login using ssh?

After installation, I tried to login from a remote computer using ssh. It asks for the password but it does not allow the server password as valid. What is the default configuration for ssh in Ubuntu ...
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1answer
36 views

Could not resolve hostname 123.45.67.890 [closed]

Could not resolve hostname 123.45.67.890: Name or service not known I'm trying to setup my server and straight away I get this error, following this guide:
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Unable to ping Ubuntu 14(host) with virtual box Ubuntu Server(guest) and vice versa

I'm newbie to ubuntu, I was trying to connect both the system with the same IP range like 10.70.9.214(for Host) and 10.70.9.3(for Guest)..but i'm unable to ping from both end. and I wanted to use ssh ...
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24 views

ssh connection: trigger event/invoke shell script at predefines intervals

On the server side I am trying to achieve something like : after x hours of a user being logged in via ssh I would like to execute a shell script. And I want this time to be configurable per user ...
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30 views

How to prevent ssh on local host?

I came to know that on ubuntu, sudo and su is not available in a guest session because of security concerns. But all I need to do, if I have the login credentials of a user in the sudoers list is too ...
0
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1answer
45 views

Started tightvncserver on Ubuntu, but viewer complains about missing .xsession file

I've never used VNC before, although I used X11 about 25 years ago. I'm trying to set up a VNC connection between my Windows laptop and a box I ssh to from an external gateway. From my Win7 laptop, ...
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36 views

Connect to ubuntu from windows 7

I read lot of blogs and SO questions. xming VNC I found these two things to achieve my requirement. xming opens everything via commands in the putty. Is there any other way to install a software ...
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6answers
99 views

Is an Ubuntu server the best option for me? [closed]

I am currently tasked with the process of creating a file server for a small business I work at. My boss is keen on the fact that we can create an Ubuntu server for free and has put the task to me. I ...
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2answers
32 views

copy files over ssh

Let's say I have 2 pc's set up on a wireless network. Machine A is my daily driver and it uses Ubuntu 15.04 Machine B is an old pc I want to set up as an ssh server with Debian LXDE(but it boots to ...
2
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1answer
37 views

How to open image in client via SSH

I am using client as a display laptop. I want to control the window via server SSH. however, when I run wmctrl -n 1 it always said Cannot find display. I wish to use SSH to have a control of ...