SSH (Secure SHell) is a protocol for running commands on a remote computer.

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Transfer files using scp: permission denied

I try to transfer files from remote computer using ssh to my computer : scp My_file.txt user_id@server:/Home This should put My_file.txt in the home folder on my own computer, right? I get ...
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3answers
734 views

How do I execute a newly installed application with Sudo?

I have just installed an application on my Amazon EC2 instance called sshpass. I am having trouble getting it to work properly ( although, it works correctly on a non AWS instance ). I've read in ...
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5answers
2k views

How to setup password-less ssh with RSA keys

I am trying to setup a password-less SSH configuration between two machines and am having trouble. There are a ton of howtos out there that I have followed and have had no success. Here are ...
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1answer
80 views

Rebooting makes me lose my password-less keys on other machines

When I reboot my machine (as I did today) I seem to lose some functionality, specifically my previous ssh keys that I had copied over to other machines that had allowed me to login without a password ...
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2answers
3k views

SSH not landing in the home directory

I have recently installed Raspbian into a Raspberry Pi. As part of the installation process I changed the user name and group from the default (pi) to my own (let's call it user) using usermod and ...
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3answers
3k views

How to fix bash or auto run /bin/bash on SSH login

When logging in as root at my server everything works fine, but when I log in as myusername the bash is not working correctly. The line starts with: $ instead of myusername@myserver:~$ and all ...
2
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1answer
757 views

Fail to ssh to remote machine via hostname

The problem is that I fail to SSH to a remote machine via its hostname, while using its IP works. The hostname returned by command hostname is: california_desert while the name returned by command ...
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2answers
3k views

How to login from remote server to my own PC?

For the experiment purpose I need to login to my own PC from the remote PCs which are under the same domain, i.e: university network. How can I do remote login in this case using SSH? As an example, ...
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1answer
9k views

How to fix “operation not permitted” on ssh login?

My previously fine working ssh login now results in a "Operation not permitted" error after getting a connection accepted. I can't think of anything I changed except for restarting the server, so what ...
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1answer
2k views

Deleted the authorized_keys file and got into a problem

I was trying to send files from machine A to machine B. For that, I created a public-private key pair using ssh-keygen -t rsa in machine A. Then I sent the id_rsa.pub file to machine B and I added ...
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1answer
1k views

Safety of SMB versus SFTP

I have a server with OpenSSH enabled. I use it to make distant backups. I mainly use rsync over SSH and SFTP. I understood that these protocols are quite safe. I am interested in enabling Samba share ...
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2answers
1k views

Can't do SSH public key login under encrypted home

I can't do ssh public key login to my server and I think this issue is related to the fact my home is encrypted. I chose the option "encrypt my home folder" under the Ubuntu install setup. The ...
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3answers
8k views

can't get gnome-session working over SSH

I am new to using SSH, so sorry if this question is too rudimentary. To sign into my office computer from my home computer through ssh I go through these two steps: first I login to my office server: ...
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1answer
4k views

Getting Dropbox to sync over SSH

I am using Scientific Linux on my office computer and home laptop. I was usually signed in before I leave my office so when I made a change over SSH on my office computer, Dropbox would automatically ...
4
votes
1answer
2k views

Does the SFTP server accept passwords at all?

I'm trying to connect to a sftp server via sftp USERNAME@SERVERNAME. Whatever I do, I get "Permission denied (publickey)." Googling doesn't help as everybody recommends switching to key-based ...
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1answer
741 views

Is it *really* possible to directly steal a private key if it uses no passphrase?

I've read in various places, such as in this question that using an ssh key pair without a passphrase allows attackers to steal your private key if they gain access to your account. I assumed that by ...
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2answers
212 views

is it possible to trigger `ssh-add <key>` only when I ssh into a box? (from Cygwin)

I've got my .bash_profile set up to eval $(ssh-agent) so I can quickly connect to servers. If I add ssh-add ~/.ssh/id_rsa_my_key to my .bash_profile as well, I'll have to type the ssh key passphrase ...
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2answers
5k views

Linux CentOS 5 SSH User Permission Denied

Today when I try to SSH into my server, I get a permission denied message (same for sftp). It used to work well before, I didn't change any server settings, except I was trying to modify a few folders ...
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1answer
205 views

SSH login to remote machine from another remote machine - How to manage connections?

Due to some security policy I had to ssh into a remote machine using another remote machine to which I ssh-ed. Here is the situation. I have access to BSD box at work and the access is only available ...
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1answer
807 views

How to “jail” a user account's network capabilities on Linux?

Linux box a is connected to a home DSL line with dynamic DNS registration, hosting a tmux session to which multiple clients connect in read-only mode over SSH. All users connect using the same ...
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3answers
2k views

GNU screen freezes trying to reattach

I have several long-running GNU screen sessions. I ssh to the box they're running on and run screen -d -r foo to detach them if they're connected anywhere else, and then attach them in my current ...
6
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1answer
3k views

How to safely resume an aptitude dist-upgrade after SSH timeout?

I started aptitude dist-upgrade over SSH on my local network. At some point the session timed out but the upgrade was not finished (it was left at one of those accept software agreement screens-- I ...
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1answer
862 views

ssh-agent not starting in OpenSuSE desktop

It seems that ssh-agent is not starting on my OpenSuSE system. When I run pgrep -fl ssh-agent, the result is blank. On my Linux Mint laptop, I get 1785 /usr/bin/ssh-agent /usr/bin/dbus-launch ...
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2answers
1k views

Have bash script wait for password

I want to write a little script which sets up a socks proxy via ssh and then starts a browser using that proxy. #!/bin/bash ssh -D 1234 user@host #& chromium-browser ...
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3answers
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How does reverse SSH tunneling work?

As I understand this, firewalls (assuming default settings) deny all incoming traffic that has no prior corresponding outgoing traffic. Based on Reversing an ssh connection and SSH Tunneling Made ...
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2answers
816 views

Can't SSH via password to a Remote Server

I've successfully VPNed to my University server on a Fedora 17 Linux terminal. $ sudo openconnect -u UNIVERSITY_USERNAMEID sslvpn.nameofuniversity.edu [sudo] password for PCUSERNAME: Attempting to ...
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2answers
6k views

Why Bash unable to find command even if $PATH is specified properly?

I am specifying path to my command in the file /etc/profile: export PATH=$PATH:/usr/app/cpn/bin My command is located in: $ which ydisplay /usr/app/cpn/bin/ydisplay So, when I performing "echo ...
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2answers
144 views

SSH encryption security

If I log in to my server through ssh and copy files to my local computer can I be eavesdropped? How do I make sure nobody can intercept the data or even know what I am copying? Are there levels of ...
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1answer
221 views

Accessing ssh proxy from another host

I'm used to setup a ssh proxy in the localhost like this: ssh -fND 9999 server I have been using it for years for daily browsing. Now I want to use the same proxy in a Windows guest in the same ...
4
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1answer
2k views

SSH login as root fails, but I'm sure I entered the right password

What am I missing? I change the root password on a unix machine, then try to log in with that password. PasswordAuthentication is set to yes in sshd_config and the sshd daemon has been restarted. ...
4
votes
3answers
18k views

How to copy between two remote hosts using tar piped into SSH from remote server when behind a firewall?

I'd like to transfer a directory between two servers, but compress the directory on the remote host before transfer, and then uncompress to another host. I'm sure it's possible to pipe everything all ...
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0answers
473 views

Launching app over SSH with DISPLAY when user not logged in

After searching and searching without any luck I'm hoping someone here can enlighten me. I have a PC (Ubuntu with encrypted home dir). I wake this PC up from a shell script on my phone, the PC shows ...
2
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1answer
148 views

Share X11 with remote server where X11 are not installed

I need a GUI on a remote server to which I have an ssh connection. Is it possible to share my X11 window system with it given that there's no X11 installed on the server?
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1answer
5k views

How to configure pfsense to NAT servers?

How can I configure pfsense so it will NAT servers so they can be accessed outside of the company? I tried to play around with the NAT settings, but didn't get anywhere. I want to be able to access ...
3
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2answers
848 views

How can I get the GNU screen command to automatically start with every BusyBox ash session?

On an embedded device with BusyBox installed I want to set it up so that the gnu screen command is automatically started when any BusyBox session is started. I have seen that I can add the screen ...
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0answers
374 views

Launch X11vnc server on Ubuntu remote desktop through SSH

I have a Windows computer and I am currently connected to a Ubuntu 12.04 system through SSH using CRT on my Windows computer. I would like to know the commands that I need to run from my SSH session ...
5
votes
1answer
705 views

Avoiding duplicate entries in ~/.ssh/known_hosts

I have my DNS search path set to ".intranet", ie, /etc/resolv.conf contains: search intranet When I SSH to a host using a FQDN, like "mailserver.intranet", it adds an entry for ...
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2answers
284 views

Interesting Secure Copy Behavior

I'm not entirely sure where to ask this question, so if this is not the right place just let me know and I'll move it. Today I was trying to using recursive scp to copy a directory between two Linux ...
6
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2answers
25k views

Server does not accept public key for ssh login without password [duplicate]

Possible Duplicate: Why am I still getting a password prompt with ssh with public key authentication? I have ssh access to two sever. One old one and one new one. For the old one I use the ...
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1answer
7k views

Check if SSH is enabled or Disabled in Solaris 11

How can I check to see if SSH is enabled on Solaris 11? I have tried typing ssh in the terminal, and it came back with a list of options, which none of them made sense to me. All I want to know is if ...
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3answers
1k views

Limited SSH user on Ubuntu 12

I'm running Minecraft on a server. How can I give my friend SSH access just to the minecraft folder (a root folder), the screen command, and some ports?
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3answers
18k views

ssh input from text file

These two question is driving me crazy and I don't have good expertise of ssh. (but I suspect it is to do with redirection only) The questions are, You want to pass multiple lines of input from a ...
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2answers
5k views

Undo `mv` command? [duplicate]

Possible Duplicate: Moved bin and other folders! How to get them back? Hi I'm in desperate need of help. I'm quite new to linux so please bear with my stupidity! I entered the following ...
4
votes
3answers
704 views

from a sparse file to a block device over the network

If I have a sparse file representing a block device, then how can I efficiently restore the file over a network? Ideally, I'd use rsync -S host:file /dev/sdb, but rsync won't write to block devices. ...
3
votes
1answer
2k views

Start network service at boot time on CentOS

I've recently reinstalled CentOS onto a computer of mine. I have OpenSSH Server on it now, as did I before I reinstalled the operating system. Here's the difference: Before, SSH started without even ...
6
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1answer
967 views

Is it safe to use /bin/cat as shell for a restricted user?

I need to remontely log on to few peoples machines to do maintanance tasks, but sometimes the machines can be behind firewalls or NAT's. The way I have been doing it is to give the user advice on how ...
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1answer
97 views

Initiate server script from laptop

I have a server that i can ssh into from my laptop. I want to be able to run a script on my laptop that sends a signal to the server which makes the server initiate a given script there. How do I do ...
2
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1answer
350 views

password problem when feeding a remote file into diff

When I want to compare a local file with a remote file, any of these usually works: $ ssh remote cat file | diff file - $ diff file <(ssh remote cat file) However, sometimes (especially when the ...
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1answer
911 views

GNOME-Terminal: Create new terminal tab on remote machine

Is there a way to open a new terminal tab in GNOME-Terminal when working on a remote machine that is connected via ssh?
3
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1answer
1k views

TCP forwarding over SSH using non-root account

I've setup TCP forwarding over SSH using the following command: ssh -N -L 1234:10.0.2.2:1234 root@10.0.2.1 This works no problem. So I decided to create a non-root account user1 on 10.0.2.1 to do ...