OpenSSH (OpenBSD Secure Shell) is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol.

learn more… | top users | synonyms

1
vote
1answer
17 views

Does ssh service stop on reboot?

When I reboot a VM (Ubuntu 16.04) of mine, I'm no longer able to ssh to it. From what I understand, 'apt-get install openssh' gives you sshservice on startup by default so I'm guessing this isn't the ...
-1
votes
0answers
13 views

How do I install downloaded mysql, openjdk, openssh with a shell script? [on hold]

I am working as a hadoop admin on goitstore.com As i am trying to do single node installation with a shell script I need to install everything through a script.
1
vote
2answers
3k views

How can I set up SFTP with chrooted groups?

How can I set up a working sftp server for multiple groups with a chrooted directory?
0
votes
0answers
12 views

sshd: segfault at 8 ip error 4 in libc-2.19.so on ubuntu 14.04

I'm using Ubuntu 14.04 and yesterday I was setup the reinstall openssh-server and setup goeip which allow/deny ssh access country wise. In /var/log/message , Continuously getting below error: $ tail ...
8
votes
2answers
12k views

Bizarre SSH Problem - It won't even start

I recently got Ubuntu 12.04 Precise, got it up and running with some MediaWiki software, static IP on the box and router and was able to access the main page even from a cell phone. Everything seemed ...
0
votes
1answer
10 views

Communication between Host and Server with completely different sshmac/sshcipher

I have a little bit idea about sshcipher and sshmac. Recently i got to know that to change sshmac and sshcipher , we need to update sshd_config with required cipher/mac. Now the question here is : ...
5
votes
2answers
6k views

X11 forwarding in SSH

How to run X11 GUI applications from a remote server using SSH? For example: my first desktop 192.168.1.1 my second desktop IP 192.168.1.12 I 'm sshing from my first desktop to the second and i ...
-1
votes
0answers
20 views

Problems with SSH Proxycommand

i have some problems with the ssh proxycommand. The authentication on the proxy works fine, but when i want to login to the remote-host it fails. The problem seems to be, that the proxy tries to login ...
0
votes
2answers
31 views

Problems with ssh

I have two VMs running Ubuntu server 16.04 on the same host machine, let us call them A and B. They have different MAC addresses, which are both allowed on the network and can both access the ...
1
vote
0answers
46 views

SSH Connection to Ubuntu Server fails with Connection closed <ip> [preauth]

Newly installed Ubuntu Server 16.04, have done the update and upgrades. Running sudo service ssh status says it is up and running. I marked OpenSSH-server during the installation. But I cannot ...
0
votes
0answers
23 views

Need assistance on installing ssh server

I am following the installation guide for setting up a ubuntu 14.04 MPICH cluster. The link to the guide is posted (https://help.ubuntu.com/community/MpichCluster). I am on part 7. I have followed ...
0
votes
2answers
49 views

Unrecognized Service ssh when building from source

So I have a web server that is running 14.04LTS because that is the latest Ubuntu Distribution I can have through my VPS. I have been trying to install OpenSSH 7.2p2 via building the source code via ...
1
vote
3answers
12k 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 ...
1
vote
1answer
45 views

OpenSSH on Ubuntu 16.04 shows ECDSA keys in an unusual format

I'm trying to SSH to my server, and the client is asking about the authenticity of the host. ECDSA key fingerprint is SHA256:bla bla bla With every version of OpenSSH I've used, ECDSA (or RSA) keys ...
1
vote
1answer
21 views

SSH: Set timeout for broken pipe

ssh has the paramater -o ConnectTimeout=10 to set the timeout in seconds when establishing the connection, but once the connection has been established, the parameter has no more effect. When an ...
0
votes
1answer
597 views

OpenSSH : Putty won't work with Ubuntu server 16.04

We use Putty to access our Linux servers from our windows workstations... Today we created new servers with Ubuntu server 16.04 and installed openssh with tasksel (as allways). When we try to ...
-1
votes
2answers
30 views

Can't use SSH at all

I'm having some problems when trying to use the command ssh-copy-id in my server, unfortunately I get the following response: ssh: connect to host 192.168.10.10 port 22: Connection refused I can't ...
25
votes
2answers
20k 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 ...
1
vote
0answers
53 views

Log in to ssh slow for one user, but not another

I'm running a server at home with Ubuntu 14.04. I have two users on the machine, say user1 and user2, each able to ssh into the box. While user1 logs in very quickly, user2 takes about 20 seconds to ...
3
votes
2answers
12k views

Installed 15.04, cannot restart ssh daemon

As the title says, I installed 15.04. One of the first things I did was sudo apt-get install openssh-server. The next command was sudo restart ssh, which is greeted with an output of: restart: ...
90
votes
3answers
115k views

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 'blah.blah....
3
votes
1answer
29 views

Where does openssh-server get the “Last Login” information from?

Where does openssh-server get the "Last Login" information from? I recently logged in remotely from a Windows machine using SSH Secure Shell 3.2.9 and the reported last login was from a network ...
1
vote
1answer
68 views

Difference between pgp protocol and rsa protocol [closed]

These are the two widely used protocols in a number servers and email applications for security with public private key pair. What is the difference between them? What are the other popular protocols ...
-1
votes
1answer
113 views

Please explain the complete steps involved in the installation of OpenSSH server on Ubuntu [duplicate]

I am having trouble installing openssh-server in Ubuntu. Particularly I want to know how to generate RSA public private key pair and the related concepts. What are the modifications to default config ...
1
vote
0answers
83 views

gedit not opening any file when launched from terminal, not only system files

My gedit application is working as normal when I launch it from launch menu and I can do all the kind of things. However when I go to terminal and issue the following command: gedit text1 Then I ...
0
votes
0answers
12 views

SSH Over Internal 10.42.0.1 IP?

Ubuntu 16 on both devices. The host machine running my ssh server is using a VPN. I created a wifi hotspot with a second adapter that shares my VPN IP with anyone connected to the hotspot. Now I'm ...
1
vote
0answers
18 views

How to use one machine as master in a cluster

I made a cluster using CSSH contains 10 machines in a network inclusive the machine that I use (currently opened machine) and the IP addresses are stored in /etc/clusters , after I opened them using: ...
0
votes
1answer
35 views

how can i acces website on linux server?

I have installed ntopng in my linux server and ntopng has web interface. But linux server doesn't and i want to connect my linux server somehow to my other computer in the same network which has ...
0
votes
0answers
59 views

Can't clone porject from bitbucket & github

I can't clone projets and I don't know why... I reinstalled ubuntu this morning, generated a public key with ssh-keygen and added my public key ~/.ssh/id_rsa.pub to bitbucket and github... EDIT 2 - ...
1
vote
1answer
12k views

How to generate Openssl .pem file and where we have to place it

I want to generate a OpenSSL .pem file to allow the remote login via ssh using .pem file at the place of password. I am able to generate key as well as .crt and .pem file using the following sudo ...
-1
votes
1answer
27 views

ssh or openssh not listed in the Ubuntu Software program

I am trying to install ssh on a fresh install of 16.04 LTS but it is not listed in Ubuntu Software program
0
votes
1answer
139 views

OpenSSH index out of bounds when trying to connect

I am trying to connect to a SSH server that is out of my control with the following command: ssh -v user@12.34.56.78 -p 12345 Previously, this command works on Ubuntu 14.04 with OpenSSH version 6.6....
72
votes
3answers
80k views

Does ssh key need to be named id_rsa?

I have come across this problem a couple of times when creating build servers with keyed authentication. I was wondering if anyone else has experience this. I have a couple of keys for my current ...
1
vote
1answer
107 views

SSH connection timed out externally, but works internally

Recently I tried to set my Ubuntu 14.04 desktop computer (I will call it "computer A") as a ssh server so I could access it remotely from my laptop (I will call it "computer B"). I installed openssh-...
1
vote
1answer
116 views

Mitigating CVE-2016-3115 By Disabling X11Forwarding

I want to mitigate CVE-2016-3115. The report from OpenSSH states that the vulnerability exists when X11Forwarding is enabled. It shows as enabled in my /etc/ssh/sshd_config, but I don't know why. It'...
0
votes
1answer
89 views

Troubleshoot ssh prompting for password

I am using Ubuntu 15.10 and I am having trouble to login through ssh without password although I added my ssh keys. It was working before and then suddenly stopped working. I do not know what I did ...
0
votes
1answer
54 views

How can'i pass this “ openssh-client' has no installation candidate ”

I am trying to use ssh command, but I have this: sudo ssh git-codecommit.us-east-1.amazonaws.com [sudo] password for dali: sudo: ssh: command not found So when i am trying to install openssh-...
1
vote
1answer
38 views

Ubuntu SSH & HTTPS Connection Issues after OS update

So yesterday everything was working great. My Ubuntu 14.04 was updated with linux-image-extra-3.13.0-85.129 update. When I start the computer this morning, I noticed that I can no longer SSH to my ...
1
vote
1answer
82 views

ssh:permission denied,please try again

I am having two laptops both having ubuntu 14.04 LTS and they have wireless connection. When I try to access other system,it says permission denied,try again.What to do? The following after I type ...
14
votes
5answers
131k views

SSH Connection Error: No route to host

There are three machines in this scenario: Desktop A : user@1.23.x.x Laptop A : user@1.23.y.y Machine B : user@192.168.z.z All the machines have Ubuntu 11.04 (Desktop A is a 64bit one) and have ...
24
votes
5answers
126k views

How to set up remote desktop sharing through SSH?

Is there a way to view (and control) a remote desktop through SSH? I will not have physical access to the remote host machine.
0
votes
2answers
427 views

Can't get SSH to work

I tried to set up an ssh connection using an RSA key but I can't get it working. My permissions are ok, I set in the sshd_configfile that it has to use a public key for authentication, I of course ...
0
votes
2answers
287 views

Passwordless ssh to vagrant to load another user after vagrant ssh

I have a new user in my vagrant box(trusty64) and I am trying to ssh into it. Instead of logging into vagrant user after vagrant up, I want to login to my username. What I have done so far Created ...
5
votes
1answer
10k views

Limit SFTP user access to specified directory

I have a Ubuntu 14.04 server installed with open ssh. I'd like to configure sftp for customers to be able to download files only. In other words, I put files in a directory that they are jailed to. ...
0
votes
1answer
32 views

SSH locked out need to put files onto server

Okay this is my last hope I have a server which i am locked out on because we were testing some different host files in the /etc/ssh folder. I am trying to get my back up onto the server so that i ...
1
vote
1answer
37 views

Unable to use apt-get on Ubuntu 12.04 Virtual Machine

My ubuntu was working just fine but today it has started giving me problems. I am not able to use apt-get. there is some openssh dependency issue. I tried to solve by reading forums but I could not ...
-1
votes
1answer
32 views

ssh Help logging to remote VMware

http://imgur.com/PLCiwWh Can anyone help me figure out that I am doing wrong here? I am trying to remotely login to another virtual machine.
0
votes
0answers
51 views

SSH permission denied from Linux Ubuntu to Windows using keys

I am a beginner in hadoop, and I am trying to set-up hadoop cluster in fully distribution mode. My master is windows and my slave machine is Linux running on VM. I have created SSH keys and in both ...
0
votes
0answers
121 views

SSH client is not working on ubuntu 15.10

SSH client showing error $ssh user@IP address ssh: connect to host 53.37.119.147 port 22: Connection timed out After checking the SSH status it shows the error $ sudo service ssh status ● ssh....
1
vote
1answer
92 views

SSH public key added but still prompt for password

I've encountered an error when trying to setup so I can connect to my HTPC with my laptop, I've followed this guide from ubuntu help This is my ~/.ssh/ permissions on my remote host -rw------- 1 ...