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

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ssh-tunneled SOCKS proxy connection refusals on Firefox 47.0 / Kubuntu 16.04

I am having difficulty making connections to websites using Firefox over a tunneled SOCKS proxy. SOCKS4/SOCKS5 makes no difference. I set up the tunnel with ssh -D 1234 id@remotehost.example.com ...
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25 views

How do I pick a new name for a network interface?

Background I installed Ubuntu Server 16.04 inside Virtualbox 5.0.22. I'm attempting to set up SSH. I already have the SSH server installed on the guest, and am happy with the network interface set up ...
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33 views

Installing Xampp (or, Lampp) through SSH

I am pretty much new to the whole concept of Ubuntu and Linux as a whole. I've installed and had my server run php5 on my ubuntu 14.04 without problems as such. The issue arrise when I realised that I ...
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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 ...
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2answers
112 views

Can't log in: Upgraded to Ubuntu 16.04 invalidated my public ssh-keys, changed to PasswordAuthentication no and now I can't get back in

I upgraded my remote server to Ubuntu 16.04 (from 14.10). Then I reconfigured it to only use keys and not passwords. Did that by editing the /etc/ssh/sshd_config file where I changed to the following:...
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45 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 ...
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1answer
50 views

SSH “Connection Refused” when trying to access from the outside over a No-IP dynamic dns hostname

I am running a server at my house with SSH enabled on it, and I have given it a static IP of 192.168.0.212, and set up the dynamic update client to keep the No-IP dynamic DNS updated. When I am on my ...
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2answers
684 views

Reliable way to create secure tunnels from startup on an ubuntu laptop?

I'm looking for a reliable way to start a secure tunnel at boot on a laptop. This tunnel will not be needed by other parts of the boot process, but could be needed at any subsequent time by a user. ...
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1answer
25 views

How to check whether my proxy server allows ssh connection or not in Ubuntu?

My college uses a proxy server with firewall for providing internet. I am unable to make a ssh connection to my AWS instance through my college internet, though I can do so through my data modem. I ...
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1answer
46 views

Linux restrict user to specific folder in var/www

My apache root /var/www/html/ contains the following folders. myapp test testapp I want to create a new user to access only testapp folder (read/write). Other folders shouldn't be read. I created ...
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1answer
4k views

Permission problem with SFTP in FileZilla

Recently, we installed Ubuntu Server on our servers this is very new for us. However, we tried to setup a apache2 server which did work. But the problem is that we can't configure apache and other ...
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5answers
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What is the password for ``ssh root@localhost``?

I need to ssh to localhost using root account, by ssh root@localhost. When it prompts for passwords, I can not login with all possible passwords. On setting of localhost machine, regular user xxx and ...
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4answers
71k views

permission denied for root@localhost for ssh connection

I just installed Ubuntu 14.04 and LAMP on that. Then, I wanted to configure my server, so tried out This tutorial. When I give the command: ssh root@localhost I get : Permission denied, please try ...
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0answers
10 views

FTP Issues with 553 error: 14.04 on AWS running ISPConfig3

I have installed ISPConfig3 on an AWS server, using a 'Perfect Server' tutorial from HowToForge, and all seems well until I try and create a website. The server works, and a default config exists, but ...
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14 views

Can't connect to server through SSH after rtcwake reboot

I used crontab to create an rtcwake command to shut my computer down at midnight, and start it up at noon. The problem is, once it turns off, and then on again, I can't connect to the server through ...
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1answer
68 views

How to connect (FTP) to remote server via my Ubuntu VPS

My problem is quite specific: I need to connect (FTP) to a client's server from my PC (Ubuntu 16.10) but my PC has dynamic IP and the client's server has IP filtering on. I have my own VPS (Ubuntu 16....
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2answers
49 views

Error when copying public key

I have created a key pair in Xubuntu 15. I want to copy the public key to a Windows 10 laptop in order to allow ssh connection only from there, but when I run (as root): ssh-copy-id myuser@my.ip.x....
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1answer
46 views

Why does ssh-key work on one server but not on another?

I have the problem that an ssh-connection with public-private-key authentication is working on 10 servers perfectly, but not on another. The user is on all machines the same and the key-pair also. I ...
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0answers
14 views

ssh to ipmi and logging data

I experienced the following situation, so if anyone can offer his/her help it will be appreciated. From a local server, I need to access the ipmi of remote servers, simultaneously. For that, I plan to ...
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0answers
15 views

How long should unattended-upgrades take?

I have ran sudo unattended-upgrades while SSH'd into a Ubuntu box forgetting the -d or -v flag, so it is almost entirely silent. My Ubuntu 14.04.3 LTS said that it had 175 security updates(!) and my ...
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1answer
21 views

Does rsync over ssh require use of UDP?

I have a remote rsync backup to a server running over ssh, using NAT to specify a non-standard high numbered port on the router. Is it ok to only open the port on the router, and the ssh port on the ...
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0answers
30 views

l2tp gives error 410 on attempt to connect on VPN

I'm getting error 410 while trying to connect via L2TP. This error occurs very often, but sometimes I'm able to connect, which leads to a fact that I customized everything properly. I have Ubuntu 14....
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0answers
30 views

How to use lsof with SSH ControlPath?

I am extensively using SSH ControlPath and would like to use the lsof tool in order to check which process is keeping a ControlPath socket up and running. I am using OpenSSH_7.2p2 Ubuntu-4ubuntu1, ...
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1answer
2k views

SSH very slowly connect

When I do ssh root@ip_adress I receive password request through 7-8 seconds waiting. It happens when I do it with keys too. This is not server side problem I'm sure(Centos or Debian connecting to the ...
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1answer
57 views

Remotely connect to Amazon AWS Mysql

I have an Amazon AWS EC2 instance running Ubuntu 14.04. where I installed MYSQL 5.5. I am trying to connect to the MYSQL running on this instance from my local Windows10 machine running Navicat. ...
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22 views

Allowing access from only a specific IP does not work

I would like to access port 22 (ssh) of a computer whose OS is Xubuntu 15 from a specific laptop with Windows 10 and external IP x.x.x.x using Putty via Internet (i.e., these computers are not in the ...
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35 views

Why is my ssh connection so slow?

There has been similar question been asked time ago, but has no answers. I noticed today that my connection with ssh to other computer on local network it was very slow. When typing in terminal the ...
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6answers
3k 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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2answers
596 views

What's the difference between login as user and changing users using su through root?

When you have a server of some sort you can access it through, e.g., ssh user1@ip and you can also do ssh root@ip to go to your root user with su priveleges and then go to su user1. In my thinking ...
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3answers
22k views

How set the Message of the Day (MOTD) as Ubuntu Server?

I have this in my Ubuntu SSH Banner Message: Welcome to Ubuntu 13.10 (GNU/Linux 3.4.43+ armv7l) * Documentation: https://help.ubuntu.com/ No mail. Last login: Mon Dec 2 08:25:39 2013 I'd like ...
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1answer
25 views

How to use existing SSH key on my newly installed Ubuntu

I have a fresh install of Ubuntu 16.04 on my machine. Now I want to use my existing ssh key on my machine, so that I can use GitHub with my previous activities. How do I set this up?
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476 views

problem with using git using private key

sorry if this question seems so easy but I'm new with UBUNTU and I still couldn't figure that out. I've been given a private key with password to clone and install a software from a repository using ...
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1answer
30 views

Remember ssh passphrase until user logs off

I use a passphrase protected ssh keyfile to connect to a server. Each time I open a new terminal I have to re-enter the passphrase. Can I make Ubuntu remember the passphrase until I log-off or for an ...
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8answers
5k views

Find out if there is a local user logged in when logging in over ssh

I need to run some calculations on a machine that I can only access remotely but also serves as a work station. There are many of them and I want to pick a "free" one. Free means in this case that no ...
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0answers
85 views

MAAS Deploying nodes hangs after SSH Key is shown

Everything was working fine, and then some configuration got changed that now has new nodes failing to finish being deployed. They get to the point where the SSH key is shown, with some Could_init ...
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1answer
22 views

rsync ssh sshpass server1 server2

I have created 2 servers, new to ssh sshpass s1 ip 192.168.1.245 s2 ip 192.168.1.76 wanted to copy files in s1>>/opt/files to s2>>/home/s2/backup objective: put 1 sentence in cron to do auto rsync i ...
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3answers
111k 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....
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207 views

sshd in Ubuntu 16.04 - login takes very long

I've seen ssh logins take some seconds many times before in the past. I always found that inappropriate. After I reinstalled my workstations with Xubuntu 16.04, this effect became really disruptive. ...
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43 views

Significant delay on ssh connections, after password input

I want to complain about Ubuntu 14.04, being slow at SSH connections. And this is happening only on Ubuntu, I didn't notice that in Debian, in which the connection is instant! Problem: There is a a ...
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1answer
35 views

ssh key forwarding not working under i3wm

I recently switched from the regular Lubuntu LXDE/openbox to the i3 window manager under Lubuntu 16.04. In either environment I can ssh with authentication forwarding activated into another machine ...
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1answer
27 views

SSH on Cloud routers

I have a Cloud router (cisco CSR router) and want to access the Cloud router through SSH . Is there a way to re-establish the SSH connection after the router is reloaded . What are all the options ...
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1answer
42 views

Turning a computer on remotely, but still on the same network

I have a home server running Ubuntu 14.04 and a huge first world problem. I like to conserve power so I leave the server off most times when I'm not using it. But when I have to turn it on I have to ...
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1answer
33 views

Run more than one application in the same time

I want to start my master server first: cd /home/MasterServer wine ForgeMasterServer.exe Then I want to host my server: cd /home/Forge ./forge.x86_64 Both of them should run after ssh client ...
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2answers
6k views

How to install software raid 0 on ubuntu 12.04 server with mdadm?

I need to install a software raid-0 array on a Ubuntu 12.04 server with mdadm through commandline (SSH). The drive setup is as follows: SDA = OS SSD SDB = HDD for raid 0 SDC = HDD for raid 0
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3answers
143 views

Ubuntu Server 16.04 - Can't login to SSH user even though password is correct

Edit: just so mods don't mark this as duplicate, I have seen pretty much all related questions and none of them have helped me. Let me just state before beginning that I am relatively new to linux ...
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8answers
320k views

SSH connection problem with “Host key verification failed…” error

I can connect to another Ubuntu machine in my LAN via SSH. On both of then PC's I installed openssh-server but from another Ubuntu computer I can not connect to my PC via SSH and I got this error: ...
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64 views

Upgraded Ubuntu to 16.04, now Wordpress updates don't work

I had my Ubuntu 15.10 system working just fine, and Wordpress updates happened over ssh. But when I upgraded Ubuntu to 16.04, the switch to php7.0 broke Wordpress updates. At first it was prompting ...
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2answers
89 views

Can not resolve aliases for ssh

Here is my problem: I got two machines in the same network 192.168.122.0/24 my /etc/hosts : 192.168.122.100 toto 192.168.122.110 tata if I type : ssh toto: root@toto's password: Permission ...
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0answers
33 views

Why my ssh command operates on my local machine?

I installed three Ubuntu 16.04 on my VMWare virtual machine software,they are master,slave1,slave2. I have installed ssh software on the three machines, and I Generated RSA Keys according to the ...
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2answers
11k views

SSH to network alias ssh_exchange_identification: read: Connection reset by peer

New install: Ubuntu 14.04.2 LTS (GNU/Linux 3.16.0-45-generic x86_64) I have no problem with SSH to the DHCP address .22, but when I try the alias address .80 the connection is reset by peer. I've ...