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Questions tagged [ssh]

SSH (Secure SHell) is a protocol for securely running commands on a remote computer. Use this tag for questions about configuring, using and trouble-shooting SSH client and server software.

1338 votes
13 answers
5.3m views

I am using a Linux (CentOS) machine, and I have already connected to another system using SSH. Now, my question is: How can I copy files from one system to another system? Suppose, in my environment, ...
user3021349's user avatar
  • 17.4k
745 votes
32 answers
1.4m views

I'm working from the URL I found here: http://web.archive.org/web/20160404025901/http://jaybyjayfresh.com/2009/02/04/logging-in-without-a-password-certificates-ssh/ My ssh client is Ubuntu 64 bit 11....
Thom's user avatar
  • 8,015
703 votes
13 answers
899k views

If I use pubkey auth from e.g.: an Ubuntu 11.04 how can I set the ssh client to use only password auth to a server? (just needed because of testing passwords on a server, where I default log in with ...
LanceBaynes's user avatar
  • 41.7k
599 votes
7 answers
582k views

I use screen for my command-line tasks while managing the servers where I work. I usually run small commands (mostly file-system tasks) but sometimes I run more extensive tasks (like DBA). The output ...
AeroCross's user avatar
  • 6,543
591 votes
14 answers
1.7m views

I have a machine running Ubuntu which I SSH to from my Fedora 14 machine. I want to forward X from the Ubuntu machine back to Fedora so I can run graphical programs remotely. Both machines are on a ...
Mr. Shickadance's user avatar
499 votes
5 answers
390k views

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 ...
Ali's user avatar
  • 5,471
468 votes
2 answers
612k views

How and where can I check what keys have been added with ssh-add to my ssh-agent?
Patryk's user avatar
  • 14.8k
432 votes
4 answers
516k views

I need to make periodic backups of a directory on a remote server which is a virtual machine hosted by a research organisation. They mandate that access to VMs is through ssh keys, which is all good, ...
Jangari's user avatar
  • 4,748
361 votes
24 answers
553k views

I want to communicate between several computers on my network (static Ethernet), through SSH. In order to do that I need to run ssh-add every time I log in on a specific machine. What can I do so it's ...
zdun8's user avatar
  • 3,777
335 votes
11 answers
399k views

If I'm logged in to a system via SSH, is there a way to copy a file back to my local system without firing up another terminal or screen session and doing scp or something similar or without doing SSH ...
Shawn J. Goff's user avatar
333 votes
6 answers
223k views

Say I want to configure my ssh options for 30 servers with the same setup in my .ssh config file: host XXX HostName XXX.YYY.com User my_username Compression yes Ciphers arcfour,...
Amelio Vazquez-Reina's user avatar
313 votes
2 answers
204k views

I feel confused about ssh port forwarding and the difference between ssh local and remote port forwarding. Could you please explain them in detail and with examples? Thanks!
user2886717's user avatar
  • 3,509
309 votes
11 answers
343k views

I sometimes have long-running processes that I want to kick off before going home, so I create a SSH session to the server to start the process, but then I want to close my laptop and go home. Later, ...
λ Jonas Gorauskas's user avatar
308 votes
7 answers
501k views

I found this question, but I'm sorry I don't quite understand the settings on the two variables ServerAliveInterval and ClientAliveInterval mentioned in the accepted response. If my local server is ...
M. Tibbits's user avatar
  • 3,367
305 votes
6 answers
416k views

I set up my ssh stuff with the help of this guide, and it used to work well (I could run hg push without being asked for a passphrase). What could have happened between then and now, considering that ...
tshepang's user avatar
  • 67.9k

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