Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices.

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How additional IPs are added to hosting

Hi i have centos server with 1 ip address. I bought 2 more ip address from same server company, and i added them in ifcfg-eth0:0 and ifcfg-eth0:1 in my server. When i ping within my server using SSH, ...
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Difference between running a script locally and remotely

What is the difference between running a script remotely: ssh -t root@$machine -x "sshpass -p 'ubuntu' ssh -t ubuntu@$address -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/nul -x ...
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1answer
10 views

How to execute sudo NOPASSWD command on other server via SSH

I have read all the post related to the issue. But If you can see mine as well and give suggestion. I am trying to do passwordless SSH and run a script on remote server. But Sudo access ask for ...
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2answers
21 views

How to set a time length of ssh and redirect the error message

I have a hostlist and there are several hosts. I want to use ssh to connect to them. I want to see whether the host is available or not by the time length of ssh takes. If it take long than 5s (which ...
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1answer
19 views

ssh connection error “Permission denied (publickey)”

So I have been trying to build ssh connections between google cluster container containing 1 master node and 2 worker nodes. I have used ssh-keygen to generate key pairs for all three nodes, send the ...
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PSCP Cannot create file error. How to fix.? [on hold]

I am trying to download backup file of my server from Unix CentOs machine to Local Windows. I tried PSCP with port number. But got some error. Please tell me how to fix it. pscp -P XXXX ...
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1answer
18 views

Can't Log in to azure VM running Linux from OS X

I´ve been trying to log in to a VM running Ubuntu in Azure from OS X through SSH verification. But when I try to connect to the virtual machine I get a Permission denied (publickey) error. To create ...
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36 views

Simplest way to setup my own remote private git server

First of all, I've read all the git-server-setup documents on the internet, but still, there is one thing missing -- I want to setup a simple GIT server in (Ubuntu) Virtual Machine for myself, not for ...
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3answers
41 views

SSH Private Key Authentication Failing

I'm kind of stuck here.. I am trying to disable all SSH login capabilities of root. No password login. No key-based login. Nothing. I have a user "andrew" that should only be able to SSH into my ...
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11 views

How to change Windows permissions for Linux NAS?

I have just finished setting up my new NAS (Western Digital My Cloud EX2) and I'm having trouble with permissions, I can read and write from the internal drives fine, but I have an external usb HDD ...
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1answer
11 views

How do I fix a cipher mismatch issue with sftp?

I'm running into an issue where a server was upgraded to RHEL 6.5, and we have automated bash scripts on an RHEL 5.9 install that connects through sftp and ssh commands. Now, the new server only ...
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2answers
17 views

Is it possible to add a cipher for an sftp client?

I'm running into an issue where a server was upgraded to RHEL 6.5, and we have automated scripts on an RHEL 5.9 install that connects through sftp and ssh commands. Now, the new server only supports ...
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2answers
37 views

Why must I use sudo for ssh public key authentication to work?

I cannot ssh from my computer (OS X) to my raspberry pi (ubuntu mate), unless I use sudo. I am using a public/private keypair to authenticate. The appropriate public key is added to the ...
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3answers
28 views

Bitbucket git SSH key error: “Bad owner or permissions on /home/centos/.ssh/config”

I've followed Bitbucket's instructions to add my SSH keys and use git without having to authenticate each time. I followed the instructions here. Then I get to ssh -T git@bitbucket.org I get the ...
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1answer
21 views

SSH private and public key creation and setup

I'm attempting to gain access to a web server using an SSH key. I followed several steps to create my keys, had them uploaded and am still unable to connect. In Git Bash (on Windows 8) I checked for ...
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18 views

rsync is missing files

I'm trying to get rsync working between Win7/cygwin source and CentOS 7 VM destination. My command: rsync --dry-run -r -a -v -i -h -x --ignore-times --checksum --progress --delete --delete-before ...
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2answers
40 views

SSH to access remote screen without X

I need to access a remote computer (which is attached to a screen), using SSH - the problem is that the programs I start via SSH need to be shown on the remote screen (tail, htop, slurm, ...) The ...
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1answer
17 views

How to tell ssh not to check authenticity of the connection host?

I regularly have to connect to hosts behind multiple VPN networks and providers, addressed as either 10.0.0.* or 192.168.*. That is, each VPN network is free to reserve either of those ranges when ...
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28 views

Raspberry pi: No internet access

I am trying to get internet connection at my university. I have enabled sharing on my wifi settings and connected to the raspberry pi VIA ethernet connection. The IP used for ethernet connection is: ...
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1answer
29 views

Passwordless ssh for non-root user in Docker

I'm running into a curious issue I've never seen before when setting up password-less SSH between docker nodes for a non-root user. To set the stage, here's what has worked: For root user on node 1: ...
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17 views

Setting up a dev environment on amazon AWS to remote desktop or ssh into for development

What I want is to set up a linux box I can then remote desktop (or ssh) into that I can use from anywhere. However I want a bit more than that and I don't know how to go about setting it up. What I ...
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23 views

Unable to start libre office from terminal

I need to start libre offices impress via SSH on various raspberry pies, each displaying a set of slides on its own screen. Now my problem is that, when I run loimpress --show file.odp it states ...
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1answer
7 views

Distribute session-only git configuration on ssh login

I have a bunch of development servers (linux) that I connect to via SSH from linux workstation. On most of these servers I want to use the Git command line interface. I use a set of Git aliases that I ...
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2answers
24 views

/etc/profile: Permission denied after restarting Amazon EC2

I restarted my Amazon EC2 instance and all of sudden when I log in from SSH via putty I get the error: -bash: /etc/profile: Permission denied -bash: /etc/bashrc: Permission denied Previously I was ...
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SCP connections mysteriously drop; too many connections?

I am running OpenSSH via Cygwin on a Windows 2008 server. This system acts as a file server for a pool of 30 build systems. At build time, each build system copies files as necessary from the file ...
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1answer
40 views

My mac has been hacked, I get a voice notification every second

My friend who knew my laptop's password has run some script using ssh remote login. Even though I have removed the authorized_keys file. I am still getting this irritating voice notification. He is ...
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3answers
37 views

How do I set files and directories created as root to be read and executable as another user?

I'm using Cloud9IDE's SSH workspaces, and for a variety of reasons, we are required to create that SSH tunnel as root. This is not really an issue, however the files and directories we are creating ...
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13 views

Can't forward ssh port properly on fritzbox 6490

I tried to forward port 8022 to port 22 on my raspberry pi in my fritzbox 6490. Therefore I added the port forwarding rule for udp as well as for tcp. My problem is, I keep getting a timeout error ...
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3answers
93 views

How can I have very large files/directories copied from one host to another “offline”?

I intend getting a vps server real soon for some of the resource-intensive sites I manage. I live in a country where 1Mb/s internet speed is a luxury and constant uninterrupted electricity, a myth. ...
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1answer
51 views

Fastest remote desktop alternative to RDP on Linux [closed]

What is the fastest available alternative today for remote desktop connection on Linux? I've tried following but all seems slow compared to Windows RDP: X11 forwarding (even with compression and ...
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10 views

X11 forwarding over two hops using socat

I have following topology: PC1 <----> (PUBLIC-IP) dom0 (192.168.1.254) <----> (192.168.1.55) domU I want to start GUI application on domU and display it on PC1. For this purpose ...
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2answers
25 views

Database backup bash working via ssh but not in cronjob

I've put together a script to backup my database on a shared host. The script is as follows: mysqldump --databases [db1] [db2] | openssl aes-256-cbc -a -salt -pass ...
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31 views

ssh doesn't work between Mac OS X (10.10.3) and Cloudera VM

Perhaps I am missing out something very basic, but it is just not working out for me... Objective is to setup passwords authentication (using ssh) between the two systems involved. The two systems ...
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7 views

I can't connect to ssh or webservice

Can not connect anymore to debianserver with SSH and Web-Service running, the services are started and working and the applications running on webservices are answering on other ports. Any ideas? In ...
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2answers
24 views

SSH Connection is established on port 22, but service is not working

I am having this recurrent issue on one of my MySQL Cluster Servers, actually always happens in any random MySQL server of this cluster, on many countries where we have this same configuration. I ...
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23 views

Virtualbox - Lubuntu - cannot login

Host: Mavericks Guest: Lubuntu 14.10 on virtualbox (osboxes.org) All of a sudden I cannot login to Lubuntu. When I input the password I can see what it looks a terminal window for less than a second, ...
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1answer
13 views

SSH config ignoring User parameter on OSX

My personal ~/.ssh/config: Host officenet User m.orlandin Hostname versioning.officenet.prv IdentityFile ~/.ssh/office_rsa PreferredAuthentications publickey actually my system username is my ...
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1answer
18 views

Connect a external SSH Server from blocked SSH Tunnel network

I need connect to SSH Server in my work office from a academic network, but in all tries occurred a "Timeout error". In my home and in other places the access work fine to connect (SSH Server working ...
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16 views

GoDaddy Ultimate SSH Access Failures [duplicate]

Been trying to access GoDaddy Ultimate Linux via shell for quite some time now. Activated SSH and added my own user's id_rsa and id_rsa.pub to GoDaddy's control panel and authorized the public key. ...
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1answer
30 views

Why keys like Esc, Ctrl, Shift and Alt does not work in SSH session from my Windows PC?

I am working on Windows PC. If I open a terminal (with putty or ssh) to a linux (CentOS) maschine, I can't get keys like Esc, Ctrl, Shift and Alt to work. I need them for Midnight Commander (currently ...
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34 views

Cannot connect SSH through PuttY even though server is online

I'm trying to connect to a server via SSH. The server is reachable according to http://www.infobyip.com/sshservertest.php and SSH works without problems on Android (JuiceSSH). However, PuttY errors ...
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1answer
24 views

SSH connection slow on OS X 10.9.5

I'm experiencing extremly slow ssh connections on my new Macbook Pro w/ OS X 10.9.5 connecting to (mostly) ubuntu 12.x or 14.x servers. Login is fast, but when I want to input the first command (like ...
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28 views

Best practise using ssh: Multiple Public Keys or sharing a private key (solved) [duplicate]

I just thought I get your opinion on the security aspect of it. I want to access different server via ssh. Nothing really important, just a hobby, but I do have multiple computers. Now, about the ssh ...
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37 views

SSH login too slow in Centos 6.6

SSH login take too much time in my CentOS machine, and also a ftp server is running on it. Please help me to speedup the login time for both root and ftp user. I tried some tricks but no ...
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1answer
22 views

On ssh connection console is looking different with different users. Why?

There are two users on my remote machine. One is olduser, another one is newuser. Olduser ssh console is working and looking differently than newuser connection. There are two folders for each user in ...
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1answer
18 views

How do I properly individualize a Linux distro clone

I'd like to rsync my laptop's (=workstation's) root partition (assume Ubuntu for the sake of this question) to a couple of places. Assuming that the clones will meet in the same LAN and that the root ...
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1answer
36 views

Error Putty X11 proxy: Authorisation not recognised

I'm developing a robot with a Raspberry Pi, and I'm having trouble with X11 forwarding. When I'm going to run my script as: sudo python myscript.py I get the error: Putty X11 proxy: ...
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2answers
43 views

Permission denied (publickey,password)

I am trying to connect to local ip via SSH from terminal. Command is ssh -v user@192.168.0.2 But it is not connecting. Keeps giving me the error "Permission denied (publickey,password)." I have ...
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1answer
12 views

Is it possible to listen to 2 ports when using ssh -L

I am using ssh -L 8080:localhost:8080 me@myLabmachine to open my web application in my local browser. I was wondering if there is a way that I could forward 2 ports instead of only 8080 port, namely ...
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20 views

slow scroll in ssh connection after a while (why?)

Remote server with screen. After some time any command with a lots of lines of output causes significant scroll lag. It happens with different terminal emulators: konsole, xterm, lilyterm, ...