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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Please clarify: Using SFTP on LAN for development

After so many years of working with FTP on Ubuntu, I'm now confused. I read on many docs that FTP is insecure and that SFTP or SSH is the best way to go. But here's what I want to do... We are a ...
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711 views

Cannot access Ubuntu Server 13.10 remotely after server reboot [duplicate]

I've encountered a weird problem imo, and none of my co-workers have no idea why this keeps happening. First of, I've built a little server machine for beta testing of my upcoming software & ...
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2answers
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How to set up Ubuntu SFTP server?

I would like to know how to set up root, sudo, sftp-only user accounts which won't be required public key authentication at log in. I would also like to know how to set up sftp-only users' home ...
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1answer
622 views

Setting Passwordless ssh when a home directory is shared with NFS

I have two nodes (master and slave) where the home directory of the master is shared via NFS with the slave node. I have created an ssh key and used 'ssh-copy-id' to add the public key to ...
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67 views

Installed Ubuntu guest in Ubuntu Host. Cannot use SSH?

i have a Ubuntu 13.04 Host, and a guest Vurtual Box Ubuntu 13.10. I have SSH intalled on both, however I cannot connect through SSH. The error thrown is "connect to host 19.0.x.xx port 22: Network is ...
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429 views

nc: Proxy error: “HTTP/1.0 403 Forbidden”

I am using Ubuntu 13.10 x86_64. I am not able to ssh over proxy to remote host. When I issued: ssh -vl hackep6t 162.251.80.25 I got this output: OpenSSH_6.2p2 Ubuntu-6ubuntu0.1, OpenSSL ...
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204 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 ...
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1answer
125 views

Restore SSH Key from txt

I had saved my private and public SSH key contents to a text file, and I recently had to reinstall Ubuntu meaning I lost most of the stuff that was in my home folder. Now, I would like to restore my ...
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1answer
339 views

Ubuntu corrupted log files

It seems that all my log folders located in /var/log are turning into files. For example, if I try to tail /var/log/apache2.log it will say "no such file or directory" I can see it in the file ...
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2answers
773 views

ssh key authentication still prompts password

I got ssh key authentication working on my production server quite swiftly. However, I have been struggling to get it to work on my development server. First, I generated the keys (I use Ubuntu on ...
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2answers
46 views

multiple ssh keys on home computer

I would like to be able to use ssh key to log into my web server via ssh and disable password authentication completely (to eliminate brute force from malicious ip addresses). So I am reading the ...
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0answers
76 views

SSH not working on my remote server

Connection issue on my server, I connect server to my local but not connect Error on File Browser popup "ssh program unexpectedly exited". I am trying to via terminal its working fine but not working ...
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1answer
1k views

SFTP connection successful, but can't upload files

I followed this guide. I am using Ubuntu Server and Filezilla, and I can succesfully connect. However, I can only read and download files, not upload or edit them. If I change the file permissions to ...
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1answer
1k views

How to upgrade openSSH version in ubuntu 10.04

I need to upgrade the openSSH version present in my ubuntu server to a higher version. Please provide me steps to do so.
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1answer
153 views

OpenSSH Users and SFTP

I added users to my server, but when I try to login, it prompts me for a password, which I never put in. Do any of you know what the default password is? Also, I would like to setup SFTP, so can ...
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2answers
160 views

How to login remotely using SSH

When I'm trying to login remotely using SSH, it asks something like: The authenticity of host '192.168.0.4 (192.168.0.4)' can't be established. ECDSA key fingerprint is ...
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1answer
392 views

Allowing for SSH Access of Ubuntu 12.04 Server from Pubic IP

I have recently configured an old PC of mine to run Ubuntu 12.04 Server to be used as an FTP Client. However, I want to find out how I can access it from a Remote Desktop (I.e: Not on the Wireless ...
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1answer
83 views

I want to access the SSH on my college's LAN but right now I am at home so I am not connected to its network

I used to connect to my college's server via the command ssh user-profile@server-ip-address Now I returned home and am unfortunately no longer connected to the network. When I try the same command ...
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1answer
707 views

SSH connections keep dropping

I have a server running Ubuntu server 12.0.4 with Openssh-server installed. I can connect to the server for about 30 minutes and then the connection drops. When I try to reconnect I get The remote ...
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2answers
11k views

Ubuntu touch apt-get install (openssh-server) error

Whenever I try to run apt-get install openssh-server I get the following errors: root@ubuntu-phablet:/home/hablet# apt-get install openssh-server W: Not using locking for read only lock file ...
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1answer
6k views

No more authentication methods to try. Permission denied (publickey)

I have set up a home network behind a router a while ago and use openssh to access the network consisting of my laptop, wife's netbook and my desktop all running l/x/ubuntu 12.04. This worked ...
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1answer
173 views

Can the admin of a SSH server monitor internet traffic?

I use SSH Tunnelling + socks4/5 to browse securely, but a certain question came up in my mind, can the administrator of that SSH server monitor my traffic? like see which websites I am visiting, ...
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1answer
547 views

Incoming ssh connections blocked

Hi some time back I asked this question and made a lot of changes to secure my system. Now I need to make a dummy account and give ssh access of this account to a friend. But I am unable to receive ...
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1answer
250 views

How to create a init.d script for openssh-server which was compiled and installed from source using configure + make + make install?

I have installed openssh-server in my Ubuntu PC using apt-get install openssh-server. The version is 5.9. Now, I would like to compile and install openssh-server version 6.2 from source codes. I have ...
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1answer
228 views

Does Ubuntu (server) go to sleep? Why does it take long to login? [duplicate]

I have several Ubuntu Server (12.04 LTS) virtual machines. Some are idle and some are processing background tasks, etc. However, when I try to login (SSH) to the servers, it often takes several ...
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1answer
335 views

chroot sftp not able to login

I am trying to set up sftp access on my server and chroot the users into a samba share. When I edit /etc/ssh/sshd_config and add Match Group sftpusers ChrootDirectory /srv/samba/share ForceCommand ...
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3answers
341 views

How to use open ssh key?

I got a ssh key in ppk format. I found some manual to convert it to an open ssh key. Now I just want to connect to the server using this key. The manuals I find are all about creating one. Do I have ...
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3answers
15k views

openssh-server package not available on 12.04.2

I have just done a fresh install of 12.04.2 and found out that i could not ssh to this PC. I tried to install openssh-server but it said that "Package openssh-server is not available..." What is ...
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1answer
394 views

SSH Connection problems

I'm having troubles with a simple SSH Connection at home. I installed openSSH on an Ubuntu Server. I generated the rsa and dsa but this ssh connection stops while expecting a MSG packaget that I ...
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2answers
2k views

Can't SSHing to Ubuntu via hostname and port other than 22

I'm trying to connect to Ubuntu via SSH from OS X, and I took the same step as explained in this page (https://help.ubuntu.com/10.04/serverguide/openssh-server.html). After setting it, I tried to ...
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4answers
32k views

SSH error: Permission denied, please try again

I am new to ubuntu. Hence please forgive me if the question is too simple. I have a ubuntu server setup using amazon ec2 instance. I need to connect my desktop (which is also a ubuntu machine) to the ...
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3answers
55k 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.
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OpenSSH Two Factor Authentication

I'm using Ubuntu Server 13.04 and want to use OpenSSH for sftp. I have everything set up and the only thing not working is the Two Factor Authentication. Currently it asks for a password or the public ...
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1answer
287 views

Match directive breaks SSH

On my Ubunut server 12.04 LTS machine, I try to add a user with only sFTP or FTP access. Let's call him 'Jim' for now. Jim only needs access to a directory /var/www/example.com. So far I've tried ...
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1answer
4k views

Why ID card reader is not working in Ubuntu 12.04, 12.10? Using Omnikey3121

I have this Omnikey 3121 which is an USB ID card reader. Connected to my Ubuntu. When i try to read Belgiun ID Card or any other card it does not work always missing to provide results. How can i make ...
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2answers
4k views

SSH into Ubuntu 12.10 from a remote computer

I am trying to login to my Ubuntu 12.10 desktop remotely. I have the SSH server installed and it works fine when I am on the same network as the Ubuntu desktop. However, I am unable to connect ...
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3answers
871 views

Basic server build for practicing and learning linux on

I am taking it upon myself to learn Linux,so here is what I want to accomplish; I want to set up a server primarily for practice. I don't need it to do anything specific accept allow me to login via ...
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1answer
7k views

ssh refusing connection with message “no hostkey alg”

My SSH connections worked well, but from last week SSH from my laptop to my board refusing connection. I can make a SSH connection from the board to laptop, but not vice-versa. I tried that with my ...
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2answers
7k views

ssh: connect to host xxxx@xxxx.in in port 22 : connection timed out

I am new to Linux and SSH. when I try to connect to a remote grid computer (for which I have access) I am getting connection timed out error. I have recently installed Ubuntu in my system. I also have ...
2
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1answer
793 views

Unable to connect to my remote Ubuntu system using SSH

I want to connect to my remote PC running on Ubuntu 12.10 using SSH. But when I try ssh my_username@my_current_ip, I get this error: ssh: connect to host 117...** port 22: Connection timed out I ...
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1answer
500 views

Why do I need the ssh server package to rlogin into my machine?

When I try to login into a Ubuntu machine using rlogin it mentions ssh connection refused. In order to resolve this I installed the openssh-server package on the remote machine. Why is this not part ...
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1answer
1k views

How to setup SFTP with Chrooted for Groups

After many trials and errors trying to setup a working sftp server for multiple groups with chrooted directory I decided to share what finally worked for me. I am a novice 2 months into Ubuntu so ...
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0answers
155 views

SFTP with Chrooted directory project

First thank you very much for all your post. I am completely new to Ubuntu and the Unix world and have found almost all the answers I needed except how to properly setup and sftp server with chrooted ...
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1answer
9k 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 ...
12
votes
1answer
10k views

I am getting a Putty attempted incorrect protocol errors when I SSH into my server from Windows

I have had Putty connecting via SSH to my Ubuntu 12.10 server for several months. Yesterday I began to get the following error every time I connect: PuTTY X11 proxy: wrong authentication protocol ...
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1answer
888 views

Problem Setting Up Local SSH Server

I am trying to setup one of my linux computers as an ssh server but I can't connect to it. I have openssh-server and openssh-client installed already on both computers (client and server). If I run ...
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2answers
3k views

Ubuntu server: ssh is showing in process but does not work

This is all within a LAN. My server can be pinged. I can run php apps on my server from within the LAN. I have installed openssh-server. I tried the command ps aux and it shows the process listed ...
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743 views

Suddenly cannot access SSH on LAN

I had ssh running on my LAN server. Suddenly (not sure what I did), I cannot access the LAN server via ssh. When I try, it just hangs for a while with no response and finally comes out with a timed ...
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2answers
15k views

Connection timeout for ssh server

I'm trying to setup openssh-server, but I'm having some issues connecting. I changed the port to something non-standard (57757) and then set my router to forward to that port. On my LAN, I'm able to ...
4
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1answer
22k views

Why do I get “connection refused” errors connecting to a server via SSH?

I've installed Ubuntu 12.04.1 LTS on it with the LAMP stack. I can ping it but when I try to connect to it the server can't be found. When I try to connect with WinSCP I get the error Network error: ...