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

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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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12 views

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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46 views

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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120 views

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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42 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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33 views

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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84 views

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 ...
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38 views

Web Based SSH Client That Supports Google Authenticator

Does anyone know of a web-based SSH client that supports Google Authenticator? ShellInABox does not seem to at this time.
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23 views

Ssh identities lost after reboot

I have a few private keys in my ~/.ssh/ folder: /home/christophe/.ssh ├── begijnhofserver ├── bitbucket ├── config ├── github └── known_hosts Now, when I try to ssh git@github.com I get an error: ...
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32 views

Many CRONs processes

My system from couple days have some strange issues. Main thing is that I can't ssh for most of my day. I noticed that is connected with amount of CRON porcesses. In crontab I have about 90 records ...
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105 views

14.04: Nautilus and mounted SMB-Drives/SFTP/SSH-Connections

What's the thing about Nautilus and mounted SMB-Drives/SFTP/SSH-connections? Everything works fine until I close nautilus. Most of the time reopening nautilus takes forever and I can't find a reason ...
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34 views

Xubuntu SSH/SCP/SFTP to a VM as a folder

I'm really hoping you guys can help me out with this situation. I've done it many times before on other distributions (centos) where it was as easy as having the file manager opened and selecting to ...
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42 views

lftp-mirror directories

I am trying to mirror directories between two computers using lftp. When lftp 'ssh's' into the other computer, commands: lftp host then user 'username', and I use the ls command I just get 'ls' at 0 ...
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104 views

Connecting ALIX 6F2 through USB serial port, putty displays nothing

Please help me connect ALIX with my laptop through a serial port to usb converter. Has anyone ever tried it? Do suggest if there is some different approach. My OS: UBUNTU 12.04 Using Device : ALIX ...
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47 views

Why ssh is refusing connection?

I am executing the following commands to add the gerrit public key (master and slave) in the ~/.ssh/known_hosts. ssh-keyscan -p 29418 <HOST_NAME> >> ~/.ssh/known_hosts ssh-keyscan -p ...
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27 views

Encrypted home mount for single session on Ubuntu?

I currently have Ubuntu 12.04 as my remote server and I have a purpose of keeping my important files on that server under encrypted home folder. I did this and it works; I send my files to the server ...
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90 views

How to SFTP Jail (chroot) with Active Directory authentication

I am try to set up SFTP with Ubuntu 14.04 using chroot with AD authentication restricting by Group as well as having a public area for users. I already have samba, winbind and kerberos setup as a ...
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79 views

SSH connection refused after reconnect for short period of time (EC2 AWS)

If I haven't connected via SSH to one of my EC2 Ubuntu instances I can connect straight away, but if I disconnect and reconnect quickly I get a connection refused message and I have to wait a few ...
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15 views

Is there a way to have a user account to have different user password and ssh password?

I am connecting to an Ubuntu 14.04 server through SSH using a sudo user with a randomly generated password (very lengthy). Of course running a command with sudo requires me to enter that lenghly ...
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38 views

ssh error into different ubuntu account permission denied

I have two instances of ubuntu installed on my VirtualBox. First instance name is aks@aks-VirtualBox and the second instance name is erica@HBMaster. Now when I try to ssh from first instance to 2nd ...
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70 views

What is missing in my webserver ufw firewall configuration?

sudo ufw enable sudo ufw logging on sudo ufw allow proto tcp from any to any port 9999 sudo ufw allow proto udp from any to any port 9999 sudo ufw allow 80 sudo ufw app apache sudo ufw app OpenSSH ...
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89 views

ck-list-sessions remains empty after a log in, loginctl works right, what could stop polkit-1 from working?

A while back (upgrade to 13.04 if I'm correct) the polkit-1 I had on a couple of computer stop working (right). Before, I could log in as admin via SSH and the X11 users could not log out (they would ...
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103 views

How do I unlock my SSH keys on login in Ubuntu Server?

I'm making a new server that will pull backups from multiple sources on a schedule, so I'd like it to connect via SSH using a key. Setting this up in Ubuntu 14.04 Desktop is trivial, you write the ...
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61 views

Can't connect to SSH with new user

I created a new user, test. I have done the following to the account: I've given test sudo permission I've added test to AllowUsers in nano /etc/ssh/sshd_config I've generated a new SSH key pair, ...
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16 views

How to sync using port forwarding

I have my home computer A and a work computer C that I want to synchronise using unison. In the middle is a work computer B. A can communicate with B and B can communicate with C directly but A and C ...
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36 views

Can't start firefox on remote server without crashing X on local host

Running: Ubuntu 13.10 The situation is the following: I log in to the remote server with ssh -X user@remote and that is fine. However, once logged in, I type firefox it crashes the local X-session. ...
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131 views

Cannot find google chrome terminal command

I'm connecting to my machine at the university using the ssh - X command. I want to launch google chrome from my terminal in order to get access to some website only available through my university's ...
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51 views

SSHFS tutorial clarification in help.ubuntu.com/community/SSHFS

https://help.ubuntu.com/community/SSHFS describes how to use SSHFS. The description is somewhat ambiguous. I have tried several combinations of the permissions and ownerships of the directories ...
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20 views

How to connect to a local forwarded port from a third machine.

If I ssh connect into a server for VNC, for example, ssh root@IP -L6500:localhost:5901 I can connect to VNC just fine on that machine (locahost:6500). But if I have a phone on the local network, ...
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21 views

If I turn on the Firewall I cannot connect to the internet

I run GUFW but even on any setting I cannot access the internet if its turned on. Why would this be? I also noticed in the "Listening" box that theres a lot of info going on which I don't understand ...
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243 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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39 views

no longer able to log into ubuntu computers on lan using ssh and ssh clients

I have a mix of windows and ubuntu linux machines on my home network, and had been able to use ssh. Now when I try to login over my LAN to one of the linux machines using putty I get a "connection ...
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213 views

Cannot SSH from Ubuntu, but can from Windows

Since the past few days, I cannot SSH to any server from Ubuntu! I am not sure why or how it began. When I try to SSH to any server, connection is established and I see the prompt for password. If I ...
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50 views

Duplicating motd and more

Here's what it is currently like: Last login: Sun Oct 5 12:35:30 on ttys000 Corys-Mac-mini:~ cory-$ ssh cory@192.168.1.209 ////////////////////////////////////////////// ...
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18 views

No windows partition's avaliable

Ok so, I'm connected to my laptop remotely via SSH. I have 3 partition's 2for win and one for Ubuntu. I wanted to check something on my windows partition but it's not showing up.. The worse is that it ...
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36 views

Tripewire database and PTS for remote server

I am tried of the false positive caused by Tripwire scan finding that /dev/pts/0 has been removed. This connection is created for my SSH session when I remotely manage the system and update the ...
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52 views

Installing Google 2 step Authentication causes SSH to not connect

I am following the instructions here https://www.digitalocean.com/community/tutorials/how-to-protect-ssh-with-two-factor-authentication After making the changes listed to /etc/pam.d/sshd and ...
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58 views

Networking issue in IBM x3650 after install Ubuntu 14.04.1

I have a problem making TCP connections after a fresh Ubuntu 14.04 installation. First of all, after booting the interface is always off, in my case em2(manually configured), so I turn it on using ...
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150 views

Ubuntu OpenSSH having issues connecting to Cisco router. No such issues with other distro or OSX

Below is the output from ssh -vvv user@host. I've tried this on two separate computers running Ubuntu. It works from Opensuse and OSX, and also my Android phone. Interesting issue. Any suggestions ...
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144 views

How do I connect to Ubuntu from Android via USB?

Referring to the question that has been answered: How do I connect to Ubuntu from Android? I cannot connect from my Android phone using JuiceSSH, because I don't know the ip address of my USB port. ...
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146 views

ssh connection time out ubunto 14.04

I get connection timeout after ssh hnname So I try the follow: netstat -nltp - I see that there is no process listen on port 22 sudo service ssh restart - I see that there is no process listen on ...
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108 views

ssh login on virtual server fails: account expired, LDAP authorization failed

I have a user account on a virtual server, running Ubuntu 10.04.4 LTS. When I try to login via ssh I get an error message: $ ssh myuser@myserver myuser@myserver's password: Your account has expired; ...
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258 views

how to remotely control Ubuntu 14.04 via SSH

I have (indirect) SSH access to the machine and a user is currently logged in physically. I want to get access to the physical screen. How? There are many related question, but none really help me: ...
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188 views

can't access kippo-graph

I have made an instance in AWS with Ubuntu Server 14.04/ 64bit as the OS I installed Kippo and kippo-graph following this tutorial http://bruteforce.gr/installing-kippo-ssh-honeypot-on-ubuntu.html ...
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25 views

pastebinit gives me the wrong URL when logged in a Vagrant Box

When I try to paste a certain file with pastebinit, I get the URL of the website, instead of the URL of the specific paste I wanted. I want to stress that this does not happen with all files... Here ...
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18 views

Remote access times out after update

Here is the situation: I have a MacBook which I use for all of my development and an Ubuntu server running a LAMP stack for my website. I've only had Linux anything for a few days so please bear with ...
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39 views

Asked for password when shutting down

Today I came across a situation that I haven't encountered before. I tried to shutdown my laptop and it prompted me for my password I'm running Ubuntu 14.04 and haven't had this happen to me for the ...
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76 views

Setting up ssh - windows to ubuntu

I have the following environment: Windows deskside system running W7Pro ubuntu 14.04 server running on a cloud server. I have tried multiple ways to set up RSA keys for ssh connections, with no ...
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80 views

ssh tunneling to Fritz!Box via RaspberryPi

I have a Fritz!Box that acts as NAS, DHCP and internet gateway. The webinterface of the Fritz!Box is only accessible from the LAN (I'd like to keep it that way, although it could be changed). Can I ...
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73 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 ...