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

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About personal hosting and domain names

I downloaded ubuntu server on an old machine in order to learn as much as possible about networking & server management , I want a personal web server to host my files on & access it remotely ...
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1answer
22 views

How to grant access to a folder which resides in a folder owned by another group

Situation: Group A requires access to /path/to/dir/foo to upload files through ssh or ftp, but the directory in question: /path/to/dir/foo is owned by group B (if you'd like: /path is recursively ...
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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
20 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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1answer
28 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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15 views

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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23 views

setting up ssh on linux-system [on hold]

I have to enable SSH on OpenSuSE 13.1 According to this guide I need to do this: netstat -an | grep :22 udp 0 0 fe80::221:63ff:fed1:123 :::* Then I did ...
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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
495 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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2answers
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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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18 views

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
5k 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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0answers
9 views

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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1answer
4k views

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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1answer
5k views

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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2answers
1k 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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1answer
25 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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2answers
32 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 ...
2
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1answer
248 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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0answers
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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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4answers
2k views

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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2answers
6k views

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
31 views

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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1answer
31 views

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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2answers
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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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SSH using IPV6 getting error “No Route to Host” [closed]

I am trying to ssh with ipv6 in my mac machine but I am getting error "No Route to Host". I can it successfully with ipv4. Can anyone guide me please if it require any network setting or else? I am ...
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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
85 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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111 views

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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1answer
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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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3answers
3k views

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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36 views

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
4k views

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 ...
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ssh is not asking for my passphrase

SSH is no longer asking for my private key's passphrase. I don't understand how this happening. In the past, I have used ksshaskpass to get my ssh key's passphrase from KWallet and unlock my key. I ...
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ssh-agent doesn't store passphrase between remote logins

I am trying to get my git repositories on my office computer to connect to my Bitbucket account via ssh. I've generated the key and uploaded the public key. I also did the following: eval $(ssh-agent ...
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2answers
39 views

Terminal Runs SSH Every Time

I have no idea how this happened. I was messing with SSH tunneling into my Raspberry Pi (with no problems) and since then, every time I open terminal on my Ubuntu machine, it tries to ssh into the ...
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22 views

SSH PC at office from home

My office has one default gateway and behind that is a local network with locally assigned IP addresses to all computers including mine. I hold admin in my Ubuntu installed office PC and is it ...
0
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1answer
11 views

Prevent ssh-keygen from including username and hostname

When I create an ssh key with ssh-keygen, it includes the username and hostname of the machine it was created on. Is there any way to avoid this? I read the manpage and didn't see anything.
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0answers
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What is wrong with knockd?

I am trying to implement port knocking for ssh service on my personal server. I have two other public services that will always be open. My iptables rules look like this: Chain INPUT (policy DROP 0 ...
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3answers
3k views

How to disable the keyring for SSH and GPG?

How to disable the keyring for SSH and GPG ? I would like to keep the keyring for the wifi and other stuff. I'm using Ubuntu 12.04.
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1answer
3k views

(SOLVED) SSH: Connection refused from windows but NOT from linux

i have an issue when i try connecting to my Ubuntu server from local network. when i try to connect from my PC (static ip) with win7 and putty, i get Network error:connection refused But when I ...
9
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1answer
8k views

Host alias for ssh

There are a few SSH destinations I will frequently be connecting to and I'm wondering if rather than remember the IP address I can create a host alias for them. I'd like to be able to use... ssh -p ...
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2answers
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How to stop all services except ssh?

In command line, how can I stop all services from my Ubuntu (Server in this particular case), except SSH? And how can I list all services to be sure all of them were stopped?
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Ubunutu 14.04 can't access via SSH\HTTPS

I can't seem to access my ubuntu 14.04 server via SSH or HTTPS recently. Not sure what changed. I'm still able to access it via http. I tried reinstalling the ssh server and regenarating a new rsa ...