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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18 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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1answer
43 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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16 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
28 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
31 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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28 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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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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0answers
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
36 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 ...
2
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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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0answers
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
26 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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39 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
261 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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26 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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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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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
22 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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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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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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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 ...
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1answer
46 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
100 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 ...
0
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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 ...
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Ubuntu, SSH: handshake failed

so i'm currently using packer to build an ubuntu ami through AWS. After which i'm using terraform to launch and provision the instance. I'm running in to problems when I try provisioning within ...