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

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How to set a central Github Repository

I am a system administrator. I have to setup a central github repository for the organisation. In which 10-15 member can add and commit the code from remote (via ssh in the same network). I also want ...
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3answers
164 views

Difference between Software Selection Servers

I am installing Ubuntu Server, and I want to know what is the difference between these: [ ] OpenSSH server [ ] DNS server [ ] LAMP server [ ] Mail server [ ] PostgreSQL server [ ] Print server [ ] ...
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15 views

SPAMHaus/ CBL Blocking List:: UNIX System (Firewall)

I am no linux/ unix guru but CBL and Spamhaus are blocking us every 8 hours roughly and recording it as SPAM. I have completed their instructions to do the following but am concerned i have done it ...
3
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1answer
31 views

OpenSSH client not connecting after deleting id_rsa

So I stupidly overwrote my id_rsa and id_rsa.pub files earlier, and I just decied to rm -rf the whole .ssh folder because it was all corrupted/broken after tinkering with it. Ever since that when I ...
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1answer
32 views

SSH to Ubuntu Desktop [duplicate]

I've setup an SSH server on my Ubuntu desktop at home using a dynamic DNS service (NOIP). I have a wi-fi-only Android tablet running Android version 4.4.2. Port 22 is forwarded, ufw is disabled ...
2
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1answer
86 views

Messed up with my ssh_config file. How can I recover the original file?

I was setting up ssh on Ubuntu. I accidentally copied the contents of sshd_config in ssh_config file! Is there a place where I can find the original one? Fortunately I didn't touch the ssh_config. I ...
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1answer
24 views

manually change the startup scripts in /etc/rc2.d

I use ubuntu 14.10 and I want to stop the SSH service from auto startup. Will it be enough to change the start up script to be /etc/rc2.d/K03ssh or I should do sudo update-rc.d -f ssh remove also
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30 views

SSH outside the local network

I have Ubuntu 14.04 LTS installed on a Toshiba Satellite L655. I've recently installed an SSH server on the machine and it works fine when connecting to it using 192.168.1.3 but when I try that using ...
2
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1answer
142 views

apt-get dependency issue Open-SSH Client

This is on an Ubuntu 12.04 Server. I'm getting this error when trying to run any apt-get install (trying to install unrelated, arbitrary packages): dpkg: dependency problems prevent configuration of ...
0
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1answer
23 views

Building openssh from source on ubuntu

Hi I'm building openssh from source. From source primarily because, I want to collect more logs than what openssh already writes in /var/log/auth.log file. In one of the c files of the source ...
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1answer
62 views

OpenSSH: X-Forwarding: wrong authorisation protocol

I have edited the /etc/ssh/sshd_config so that: AllowAgentForwarding yes AllowTcpForwarding yes X11Forwarding yes X11DisplayOffset 10 X11UseLocalHost no And I connect to the host with: ssh -X ...
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2answers
357 views

Error `could not load host key` when trying to recreate SSH host keys

I am trying to recreate the ssh-server host keys. I have at least two ways to do this: With dpkg-reconfigure dpkg-reconfigure openssh-server This works fine, but I cannot give the key length ...
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1answer
109 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. ...
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2answers
37 views

How to run openssh-server compiled from source

I have compiled openssh source using ./configure make and make install Now it has compiled and installed binaries, config files and the server at /usr/local/bin /usr/local/etc /usr/local/sbin ...
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0answers
52 views

OpenSSH chroot breaks ssh and ftp

I'm trying to set up a webserver with a restricted sftp connection. I've googled and followed several walkthoughs that all appear to be pretty much the same thing. Here are my steps: Fresh install ...
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2answers
277 views

openssh-server Permission Denied (publickey) ubuntu 12.10 LTS

Permission denied (publickey). ssh-keygen -t rsa -P '' ssh-copy-id hadoop1@hadoopslave CAN LOGIN WITH : ssh username@hostname or username@ip_address ssh hadoop1@hadoopslave ...
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1answer
940 views

Why is my scp rejected from port 22 even though I'm connecting on port 25000?

I know others have had this issue, but I can’t extrapolate a solution to my situation. I am trying to scp a .tar.gz file onto my newly configured Ubuntu server (I’m new to server config), but I’m ...
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0answers
111 views

Cannot ssh to localhost : Permission denied(public key)

I'm trying to ssh in a server as ssh localhost but it keeps saying : Permission denied (public key). I tried everything from reboot to regenerating the ssh key. It was working before, until I ...
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107 views

After reboot, ssh refuses connection

I've never touched sshd_config, all ports open (22, 80, 443), ssh status says ssh server is running. I had all working before reboot perfect, now it´s all dead and I can't enter site, neither using ...
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2answers
39 views

How can I remove a specific known_hosts entry without deleting the file

When I try to ssh to my server (I reset the server) I get the usual "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!" I then run the suggested ssh-keygen -f "/home/XXXX/.ssh/known_hosts" -R xxx.com ...
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1answer
440 views

SSH connection refused on fresh started Ubuntu 14.04. - Connection possible after restart of ssh until reboot

I'm a newbie to linux and ran into a problem with my new media machine in the living room. I want to control it over VNC from time to time and therefore installed openssh-server. From the beginning I ...
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0answers
63 views

how to set up a connection without using ssh

hey^^ currently I'm having a problem with a compute who has ubuntu installed on it, so I wanted to use putty and get remote access. Sadly the computer is a bit of a pain in the ass and not able to ...
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1answer
268 views

Error connecting Qt Creator to Raspberry Pi using ssh

I have generated an image for the Raspberry Pi board using buildroot 2014.11, but while connecting Qt Creator via ssh to Raspberry Pi board it shows the following error: Connecting to host… SSH ...
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3answers
740 views

Can't SSH into Ubuntu Touch device

From my computer: cameron@cameron-ubuntu:~$ ssh phablet@192.168.99.124 Permission denied (publickey). So it seems that openssh on the phone doesn't have password authentication enabled. But it ...
2
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1answer
214 views

installing openssh-server without an internet connection

Currently we have been given an old server with the OS ubuntu. To work at it without always physically being there I wanted to access it with the software putty, but I haven't installed ...
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1answer
82 views

How do I connect to an Ubuntu server via SSH from OSX?

I recently downloaded OpenSSH on my ubuntu server; though I don't have a domain name yet I do have another device (running OSX) on the same LAN as my server. Is it possible to connect to the server? ...
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2answers
150 views

Cannot SSH into Ubuntu14.04 Server Remotely

So I am able to SSH onto the server when connected to the same network, but I need to enable remote connection. When I enter ssh -v user@serverIP, I get the output: OpenSSH_5.6p1, OpenSSL 0.9.8y 5 ...
2
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1answer
251 views

ssh connections to Ubuntu are intermittent

I'm trying to use ssh to connect from a Mac to Ubuntu 12.04. I get "Connection reset by peer." Try again and I get "port 22: Connection refused." Keep trying and I get password prompt. Enter password ...
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43 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 ...
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2answers
62 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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226 views

Change chrooted sftp user default directory

I am using Ubuntu Server 14.04.1 LTS running openssh. I have set up sftp chroot for several users by editing sshd_config like below: add: Subsystem sftp internal-sftp Match Group sftp_users ...
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1answer
34 views

Setup openssh to start when the computer boots

I have a headless server and I was wondering if it is possible to start openssh without logging in. It would start without the need for a password, so I wouldn't have to plug in a monitor every time I ...
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2answers
120 views

how to connect from ubuntu pc to android in a secure way?

I connected to my ubuntu using juicessh android app through ssh, however I have concerns about security, what are the steps that you have to take to make sure that it is secure? can you copy the keys ...
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5answers
1k views

SFTP timeout but SSH works fine

I am unable to sftp (or scp) into my server setup but am able to ssh just fine. I am using key authentication for both. When I sftp it just hangs forever and doesn't give me the sftp prompt. Here is ...
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2answers
213 views

SSH from iPhone

I installed openssh server on Ubuntu 14.04. My machine name is called "machine" and my username is "machine" so that when I'm on a terminal it says "machine@machine". Question: When I try to connect ...
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1answer
167 views

Force ssh user to different shell through config

Is it possible in the openssh-server config, to force a subset of users to use a different shell than the one defined for them in /etc/passwd? Say that i, for example, want to confine all users ...
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1answer
44 views

SSH a Ubuntu Server with external ip

I have a Ubuntu server set up at my house and I am able to connect to it using SSH with its local IP. How can I connect to it from anywhere with its external ip?
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285 views

Trouble ssh connecting with Putty from windows to ubuntu

Hello all I've been looking all over this form for answers but I just can't seem to get it right. First time ubuntu user, and linux user for that matter. I have openssh-client and openssh-server ...
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2answers
598 views

OpenSSH - Restrict users to one or multiple folders

I want to know how I can restrict user access using OpenSSH Server. Let's say I want user 1 to only access /Media, /Documents, and his home folder, User 2 should only access /Folder21, and his ...
0
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1answer
359 views

OpenSSH/Git Problem under Ubuntu 14.04

I'm using Ubuntu 14.04 and am trying to clone a git repository via ssh. Unfortunately this does not work due to problems with openssh-client. In the beginning I was unable to connect to the SSH ...
1
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1answer
134 views

Disable login prompt through SSH when no key is present

I've set OpenSSH server with private/public keys, with password login disabled. I was wondering if there was a way to not even show the 'login:' prompt when someone without a key tries to connect. ...
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2answers
1k views

sshd daemon not running ubuntu 12.04

The sshd daemon is not running on my machine (Ubuntu 12.04). I have repeatedly re-installed the openssh server and rebooted. I get no output to this command: ps -A | grep sshd Any help would be ...
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0answers
85 views

How to setup a Multi User NAS

I want to setup a multi-user NAS, With an administrator, and have that admin have the ability to add users to the NAS. Users Are likely to be using mainstream platforms. So I plan for them to use ...
2
votes
1answer
60 views

timeout during ssh connection

I have an ubuntu pc in my office. I can use this computer through teamviewer. But I not use ssh connection. This is my office computer: donbeo@donbeo-OptiPlex-790:~$ sudo service ssh status ...
0
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1answer
157 views

cannot ssh via inadyn and freedns

I am having trouble getting ssh to work with a dynamic IP address. I have two laptops, one host and one guest. I have ssh set up on the host and I can ssh in from the guest as long as I know the ...
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89 views

File ownership in FTP client displays ID instead of name

Today I'm setting up my first VPS – Ubuntu 14.04 on Digital Ocean. The set up shows owner and group id instead of name. It's not FTP client's settings. It happens only for my new VPS sever. Maybe ...
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60 views

sshd_config file is being overwritten on reboot

I need an AWS server to accept password authentication and whenever I remove the hash and set PasswordAuthentication yes After reboot or create image and launch a new instance, the # is added back ...
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1answer
158 views

SSH to user from external network says permission denied, works fine from internal network

Okay, I have Openstack installed on a server. I can SSH to the openstack server I have set port forwarding on that server I can ssh to the instance using private AND public(floating) IPs when done ...
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4answers
793 views

SSH onto new Ubuntu 14.04 server

This is my first server I have set up and I used ubuntu 14.04 to run it. I opted not to use the server install because the regular ubuntu was easier to setup. Now I wanted to make the server ...
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48 views

ssh, problem with headless device

I have Ubuntu 14.04 installed on a headless device. Since the last update and shutdown it is not possible to connect via ssh anymore. nmap shows the machine is up and in the network, all ports are ...