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

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Installing ubuntu server using Network Console

I have a bit of a weird situation, I have a laptop (an old Macbook 3,1) with a half broken screen. I want to install Ubuntu server on the computer but it turns out to be quite a difficult endeavour. ...
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Why does ssh's “password” prompt take so long to appear?

When I try to ssh, the password prompt takes too long (almost two minutes) to appear. Why does this happen?
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Ubuntu 14.10 server startup

I install just the OpenSSH server on hardware that was running 14.04 Server. Besides the pages of checks the startup goes through, I believe it should recognize scroll lock from an usb keyboard, but ...
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Remote X sessions, how to discover GUI applications?

I've started playing around with remote X sessions and really like it so far as it allows me to use GUI tools to configure my server (sometimes, I just don't feel like editing text files). One thing ...
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235 views

Imported OpenSSH keys are saved in Gnome2 keyring, not OpenSSH

I have run into a frustrating issue, that I am sure will be a snap to solve. When importing an openssh key via the "Passwords & Keys" (seahorse) program, it simply places it within the "Gnome2 ...
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23 views

Connection problem

I have some problems with the Wifi connection in my office with Ubuntu: Can not access facebook. Can't access my server via ssh. Can't access some websites using https protocol. Note: this problem ...
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How do you make Seahorse (Gnome Keyring) store passwords for ssh keys in?

I'm trying to get Seahorse to remember the password for an existing RSA key I've copied across from another computer. When I use the key rather than Gnome Keyring prompting me for the password and ...
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17 views

Interact with GRUB over network

I am connecting to my workstation over SSH (via VPN access) and I accidentally rebooted machine. The problem is that I cannot connect to my machine because it boots to grub and it waits for ...
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32 views

Trouble Configuring VNC on AWS Ubuntu amd64 (ami-9eaa1cf6) via Win 8 TightVNC

NOTE: At the bottom of this question I've appended some details I've found that I think are clues as to the underlying problem. I started out with a clean instance of Ubuntu 14.04 AMI and took the ...
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109 views

No MOTD on Ubuntu 14.04…?

I recently did a fresh install of Ubuntu 14.04. When I SSH, there is no MOTD (and yes, I have the appropriate command set in sshd_config). I read a bunch of tutorials about setting up MOTD, but I ...
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How can I break out of ssh when it locks?

I frequently ssh into my box at home from school, but usually when I change classes and my computer suspends, the pipe will be broken. However, ssh simply locks up - Ctrl+c, Ctrl+z and Ctrl+d have no ...
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How do I get eth0 IP address

When I type in this command line I got this.But it did not contain IP address.Actually I want to connect with Raspberry Pi with ssh connection.So do that I want to get IP address of eth0 .If there is ...
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SSH asks for password

I have already : Installed the server Generated the pub/pri keys with -P "" Copied the id_rsa.pub to authorized_keys ssh localhost > answered "yes", copied to known_hosts tried ssh localhost >> ...
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Rsync creates error message unexplained error (code 255) at io.c(837)

When I try to rsync -qaPH source/ 192.168.1.21:/var/backups I get rsync: [sender] write error: Broken pipe (32) rsync error: unexplained error (code 255) at io.c(837) [sender=3.1.0] Whats wrong ...
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24 views

How to run job with access to ssh passphrase

I have a long-running daemon (unison file monitor) that I want to have running at all times. This daemon connects to a remote server through ssh and maintains a local directory synced with a remote ...
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3k views

Problems using the start-dfs,sh on hadoop 2.2.0

Im using this tutorial for installing hadoop 2.2.0 http://codesfusion.blogspot.in/2013/10/setup-hadoop-2x-220-on-ubuntu.html I've completed many of the steps successfully but I'm stuck over this ...
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1answer
25 views

SSH on but unable to connect (says only sftp)

I have a little problem with SSH on a ubuntu installation. I'm a novice when it comes to Linux. We have a ubuntu server at work which is used by a small part of the organisation and the IT staff that ...
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31 views

OpenSSH server requires login on local account prior to allowing remote connections

I have an ssh server installed on an Ubuntu 14.04 Server. I've noticed some strange things happening. If I have not logged in locally on the machine, it will not allow login remotely. If the server ...
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ssh: automatically accept keys

I've written this small utility script: for h in $SERVER_LIST; do ssh $h "uptime"; done When a new server is added to $SERVER_LIST, the script is stopped with: The authenticity of host ...
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Ubuntu 13.04 Tunnel IPV6 to IPV4 via SSH

I need Help regarding the below setup. Before starting let me give you short idea about the infrastructure and topology and the problem which I'm trying to resolve: We have 4 machines i.e. A, B, C ...
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3answers
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Can't start, stop, or interface with SSH service

Having really bizarre behavior with ssh. I have the ssh-server running fine, configured ufw (firewall) fine as well. However, it seems I can't manage ssh as a service or through /etc/init.d/ssh. I ...
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1answer
527 views

System hang when using SSHFS

This is just a quick note that I want to share with others. It is about the problem that I encountered with my office machine. It was hanging continuously when ssh mount was used. The main problem is, ...
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How do I force SSH to only allow uses with a key to log in?

I tried following the instructions here: http://lani78.wordpress.com/2008/08/08/generate-a-ssh-key-and-disable-password-authentication-on-ubuntu-server/ to only allow users with a public key on the ...
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Problem connecting to database via SSH with MySQL Workbench

I am having trouble connecting to an external database via SSH with Workbench. The error that I get says: Could not acquire management access for administration UnboundLocalError: local variable ...
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2answers
6k views

How to avoid typing ssh-add everytime

I read and followed some online documentation on how to set up a ssh-agent so that I don't need to type in password every time I ssh to a remote machine. However, with the help of ssh-agent, I still ...
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sshuttle consumes all resources

I use sshuttle to forward my TCP traffic through a ssh tunnel with the following command sshuttle --no-latency-control -HDr user@server 0/0 -l 0.0.0.0 but after a while sshuttle (python) uses all ...
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Cannot establish ssh connection to computer on local network

I've just (re)installed ubuntu 11.10 on my main pc, and the connection times out every time I try to ssh connect to my laptop (over the local network) to retrieve the files I backed up there. The ...
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Mount remote directory using SSH [duplicate]

How to mount a remote directory using ssh to be available same as if it is a local directory?
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2k views

SSH vs SMB vs NFS for GUI file transfer

I am using Ubuntu 12.04 on many computers at my school (I am a teacher and the head tech dude). I use Clonezilla to massively clone desktops and laptops. I want to easily share the disk images ...
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38 views

Can't remotely connect to Ubuntu server 14.04

I'm able to connect to my server through my Windows 8.1 using FileZilla and PuTTy perfectly fine also using andFTP while I'm on the local network, how ever that's not the case otherwise. I've tried ...
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56 views

Open Java program from SSH into VNC display

If I have an Ubuntu 12.04 system that has LXDE and TightVNCserver installed and run a session on port :1 (not tunneled through SSH) and an active SSH connection, then how can I use SSH to start a ...
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253 views

ssh-agent not accessible within a schroot

I'm using an schroot to do some builds of deployment packages, and there's a lot of to and fro between the host and the schroot environments. Within the schroot the ssh-agent doesn't seem to be ...
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scp get connection closed to remote server while ssh did fine

when i ran scp on centOS having openssh_4.3p2 it worked fine,but under environment below, when i run scp it fails like 'Connection closed by aaa.bbb.ccc.ddd' host : ubuntu 12.04, openssh_5.9p1 ...
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Is someone trying to hack into my server? What can I do?

A few weeks ago I posted a question here about some ssh issues I was having with an Ubuntu 12.04 box. Fast forward to today and I am trying to allow someone else access to the machine, but they keep ...
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Ping works , but unable to do ssh

I disabled the firewall with sudo ufw disable, I can ping the server, the server can ping me but I can't ssh to it: root@ubuntu:/home/acme# ssh 192.168.1.6 ssh: connect to host 192.168.1.6 port 22: ...
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1answer
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unix - disable “su” for ssh'ers

I'd like to disable getting root at all for users who ssh in - including "sudo su" cause that's pretty much the same thing... Can this be done? Assume that I'M not ssh'ing in, and have physical access ...
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Login kickout every time in Ubuntu Server 14.04 LTS

We have installed Ubuntu 14.04 LTS in our production servers. Our Dedicated server disk was filled, due to that issue one of the production server stopped. While troubleshooting i found that disk was ...
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What to do with rogue apt-get process

While SSH'd into a server, I was running sudo apt-get upgrade and I accidentally caused the session to quit (Write failed: Broken Pipe) by doing nothing while the installation was waiting on a prompt. ...
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SSH No supported authentication methods available

I have about 10 servers, on 3 of them I cannot use my SSH key, but on the other 7 I am able to use them. I get an error message: Disconnected: No supported authentication methods available (server ...
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How can I reconnect to a ssh session after a broken pipe?

So I was running apt-get upgrade on a server when the router decided it had been too long since it last made me angry: It dropped all connection. Moral of the story is to use screen a lot when you're ...
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Forwarding, redirection, between 3 machines

I have this structure: A: machine not in the domain of our company. B: machine in our company (with an application server) C: my machine So the communication has been enabled to interact only ...
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1answer
4k views

How do I get SSH server to work with putty client?

I have an Ubuntu 12.04.01 desktop PC, 64-bit. It has openssh-server installed. When I SSH to the server from a linux box it works. But when I use PuTTY from my Windows 7 PC to connect then I just get ...
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what is ec2 use dafault PASSWORD?

I changed setting to login without keypair to aws server. So, I changed this setting: /etc/ssh/sshd_config PasswordAuthentication yes but i cannot login as ec2-user How would i get root? or do ...
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How to disable X11 forwarding

When I am logged into a mainframe unix machine I see the following error message when I run certain commands: KiTTY X11 proxy: wrong authorisation protocol attempted When I log in using ssh -v ...
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1answer
152 views

Prevent machine from sleeping when SSH connections are on

I am trying to save power by switching desktops to suspend mode when they are inactive. But many desktops are also accessed via SSH by their owners. There is a wakeonlan solution deployed to enable ...
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Why does this scp command fail? (Host Key Verification failed) [duplicate]

Today I learned that I can execute simple commands without actually ssh'ing into the target host. For example, when I run this commmand ssh target_machine ls /tmp The machine will ask for my password ...
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Running multiple Python programs fills up /dev/mapper/gregorbr--lnx--vg-root 55G 52G 55M 100% /

I have a ubuntu server 12.04.5 LTS that I use to run multiple python programs that uses ssh. I have it set up so it just prints to screen, so it shouldn't take up any space at all. Here is they ...
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ssh never ask for a password

Somehow my SSH never wants to ask me for a password. So I setup a VPS on some random server somewhere in the world and I want to connect to it with ssh. I can setup a key, but when I do this: ssh ...
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How do I disable gnome-keyring ssh integration?

I don't want gnome-keyring to get in the way of my git commits, partially because it locks the entire screen while asking for a password, even on KDE (though I have now switched to GNOME). While I do ...
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1answer
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Why does the host key verification fail in “connect to server” utility?

I am able to use ssh from terminal but I am not able to use it from "connect to Server.." utility. it is showing the error in the dialog box as below: Cannot display location ...