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

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2
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2answers
235 views

End process from another SSH window

I forgot to use screen and I have a task that has been running for quite some time, and I do not want to lose the saved data. Basically Ctrlc will end the task and save the data if I am on the same ...
3
votes
2answers
504 views

Grant ssh access for single session

I wonder if there is a tool/modified ssh-server/ssh option which enables me to grant ssh access for a single session to a given user. What I want to avoid is creating a user account and password for ...
1
vote
2answers
1k views

scp hangs on SSH2_MSG_SERVICE_ACCEPT received

I frequently scp my file to remote host. But suddenly it started taking more than 30 seconds to copy 20kb file.It used to take not more than half a second. After referring to some blog I appended ...
2
votes
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 ...
2
votes
1answer
346 views

Restrict two way SSH and Apache authentication to non-local networks

I am using Google's open-source PAM module for two-way authentication for SSH logins and certain Apache directives. It works great, however I would like to use this only when trying to log in from an ...
0
votes
1answer
1k views

Unable to login to my server using ssh

Yesterday I was migrating to my new server, needed to use rsync, I created a RSA key, so that rsync could connect, I saw an error that says add to trusted key in location x I didn't have that location ...
0
votes
2answers
131 views

Transfering files using ssh

I've found the following command pretty convenient for transferring files to servers I have ssh access to: cat myfile.txt | ssh my.host.edu "cat > myfile.txt" Is there a similarly convenient ...
0
votes
1answer
1k views

non root ssh keys help

I'm having issues setting up a different CentOS account with its own pair of SSH keys. I have created the required files but when connecting with Putty it says Connection refused, here's the putty ...
3
votes
1answer
196 views

How are loaded SSH keys referenced by name?

I'm using chef's knife ec2 tool which requires the name of a loaded SSH key (that was created in the Amazon EC2 control panel) It seems strange to me that it uses a name to reference the keypair - ...
1
vote
2answers
2k views

ssh root@localhost error; help me hack this box :)

I need to gain a root shell on a linux vm for a security class. I have a user account on the system and a means to write to any file (i.e. /etc...) and want to escalate my privileges with: ssh ...
0
votes
1answer
422 views

Copy modified files from one server to other

Scenario: 2 Servers (*.12 and *.13) CakePHP "application" on both of them. *.12 is "Production" Server *.13 is "Development" Server Now i want to copy all files modified the last 2 days from test ...
2
votes
1answer
782 views

How to password-less log on via ssh alias

Suppose I have access to pc via a server. I can directly log-on to pc by using How do I connect to a pc through another pc using ssh Such that my .ssh/config looks like: Host short Hostname pc User ...
2
votes
1answer
5k views

How to put value of echo pipe netcat commands into variable [duplicate]

I have this command succession: echo -ne "/dev/shm/test.sh" | netcat 89.196.167.2 4567 and let's say it return a string like, for example "Hello...bla". (on the 89.196.167.2 i have made a server ...
1
vote
1answer
173 views

doing an rsync across multiple machines

I have the following setup: Machines A, B , C running linux. I have to do a continuous rsync from machine A to machine C and have a script for that. However, the access to machine C from machine A is ...
1
vote
2answers
1k views

How to transparently monitor SSH access/network traffic in Gentoo/general linux?

What's the most effective way to monitor SSH access in Gentoo Linux? My Gentoo box is operating locally behind my broadband router. I have SSH port forwarding on the router and a DNS entry pointing ...
2
votes
2answers
2k views

Connecting to host by SSH client in Linux by proxy

I am really struggling with this. My host (A) is behind a proxy/firewall (PF) and needs to connect to host H. The proxy has HTTP/FTP/SOCK proxy configured and I have no issue to configure in ...
0
votes
1answer
37 views

How to identify which application is trying to access the unixbuild server?

The error message I am seeing is: Failed publickey for raj from 10.*.*.** port 34355 ssh2 Mar 18 05:22:34 unixbuild sshd[16956]: [ID 1000034 auth.info] Failed password for raj from 10.*.*.* port ...
-1
votes
1answer
163 views

SSH File Transfer

Is it possible for me to use SSH to transfer files from my linux computer to my macbook, if so, can anyone post a brief tutorial? I kind of understand how to use SSH, but I need to know how to find ...
3
votes
1answer
3k views

SSH via Corkscrew to a remote server not working

I am trying to SSH to a remote server from my college network (proxy). However, I am getting this error whenever I try to SSH to the host ssh_exchange_identification: Connection closed by remote host ...
2
votes
1answer
174 views

Configure SSH keys for production and DR server

Here is the case, we have successfully configured SSH keys (and hence password-less SFTP connection) between ProdServer-A to ProdServer-B. It works, or so I thought still yesterday. Yesterday ...
-1
votes
1answer
184 views

How to fetch logs from diffrent servers using one command? [closed]

How to fetch logs from diffrent servers using one command? For example, suppose I want to fetch logs for same id in different servers. I have to go to each server and search for logs. Is there any ...
14
votes
2answers
6k views

(SSH) Is it dangerous to close terminal without “exit”?

This happened many times. While the SSH active, I'm so tired and just close the terminal without exit Is it dangerous to doing like that?
2
votes
2answers
129 views

Remote access SSH problem

I have been asked to setup a lab with 1 PC (fedora 18 OS) and 4 SGI (IRIX 6.5 OLD OS). I am using a switch to connect them to university's network, and I asked tech guys to assign static IPs to them. ...
2
votes
2answers
626 views

SSH client side problem: hanging and timing out on some hosts

From my laptop I'm trying to connect to HOST1 and I get: $ ssh -vvv user@HOST1 OpenSSH_6.0p1 Debian-3ubuntu1, OpenSSL 1.0.1c 10 May 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: ...
1
vote
1answer
1k views

Session terminates immediately after authentication

I have a RedHat 5.3 server with several regular users created. Since last Friday the user "xpto" is getting "Authentication failed" error messages. Tha account isn't locked out. I have reset the ...
2
votes
2answers
571 views

Why does my Emacs toolbar look different over ssh w/ X forwarding on Cygwin vs CentOS?

I'm using Emacs 24.2.1 installed on a CentOS 5 server, which I ssh into with X forwarding (using -Y). I have both a Windows laptop with Cygwin/X installed, as well as a desktop running CentOS 6. When ...
4
votes
2answers
216 views

Determining the Password Status of a User

I have a debian box that I connect to via SSH. I have removed the password from the users root, and my personal account using the instructions here, and set up a public/private key pair so I can log ...
11
votes
2answers
16k views

ssh and character encoding

When I ssh into my VPS, I have irssi running in screen. When someone sends a unicode character (such as © or €), irssi displays garbage when I use it via the screen in a ssh session. If I connect to ...
0
votes
2answers
236 views

how to code c++ via ssh with Vim or Vi? [closed]

Would I have to rent and configure a server or something? I'm sort of new to unix, but when I was in school I had this nifty setup where I could ssh from any terminal in linux or mac or putty in ...
2
votes
1answer
1k views

SSH host key keeps changing

I am trying to set up a web service (using the Play Framework) on an Ubuntu machine on the network. However, I am experiencing intermittent failures connecting to it, not being able to connect to it ...
1
vote
1answer
693 views

How to ssh on multiple ipaddress and get the output and error on the local *nix machine?

command="ls -lrt;uname -a;uname -o" for i in 10.38.227.229 10.38.164.103 do ssh auto21@$i "$command 2>&1" >> log #ssh -n auto21@$i "$command" 2> >> log done i am trying ...
1
vote
1answer
280 views

setup password less ssh between two accounts from third account

There are two unix accounts A and B. I want to configure password less ssh between these two accounts.This can be done without much pain but my problem is that there are mutiple accounts like A and B ...
1
vote
1answer
347 views

Mosh doesn't reconnect

I installed mosh on a desktop and server yesterday (compiled latest v1.2.3 from source) and it works fine. I left the session open yesterday and have come into the office today to find my mosh session ...
2
votes
1answer
73 views

Change order of Private Keys passed via SSH login

ssh -i ~/.ssh/username username@xx.xx.xx.xxx -v Server is set to accept only 3 log on tries. The ssh system is trying 3 identity files before attempting the correct identity file. debug2: key: ...
4
votes
3answers
857 views

DynDNS alternative for SSH?

I have an server that has a dynamic IP address and is accessible over SSH. On the server, a script uploads a text file containing the server's public IP address to a web location whenever that address ...
1
vote
1answer
322 views

Why I'm still able to use ssh reverse tunnel after closing reverse ssh connection?

I have created a reverse ssh tunnel to connect to a computer behind NAT using: ssh -R 9050:localhost:22 user@middleserver in the destination system. I closed the terminal that I entered this ...
18
votes
3answers
6k views

How to close (kill) ssh ControlMaster connections manually

With the following .ssh/config configuration: ControlMaster auto ControlPath /tmp/ssh_mux_%h_%p_%r ControlPersist 4h How to close the persisting connection before the 4 hours? I know you can make ...
2
votes
1answer
178 views

SSH to server, execute commands and give control back to user

How can I do something like this with one ssh command: echo << EOF echo "Choose a file:" * read f rm -r "$f" EOF | ssh user@host I can use the -tt (yes two t's) with ssh to make ssh read from ...
0
votes
1answer
169 views

I'm only allowing pubkey auth via ssh. How can I still log in with password?

vi /etc/ssh/sshd_config egrep -i 'Pubkey|Password|Listen' /etc/ssh/sshd_config | grep -v '^#' ListenAddress 0.0.0.0 PermitRootLogin without-password PubkeyAuthentication yes ...
3
votes
1answer
912 views

Is there a way to find out how many instances of the root user are logged into a Linux machine?

We have a handful of users that login to our Linux virtual machine as root either through the vSphere client or through SSH and I want to see if there is a way to tell if multiple root users are ...
3
votes
3answers
731 views

Must I store a private key in a file?

I have a db-driven application that needs to communicate with another server via ssh. The web app can generate a keypair and give the user the pubkey, or it can accept the unencrypted private key in a ...
3
votes
1answer
458 views

Tunnel AFP over SSH over Internet

I can't seem to figure out how to connect to AFP over SSH. Here is my setup: [Raspberry Pi] <---> [router] <---> (Internet) <---> [Client] I'd like to be able to connect to my ...
0
votes
3answers
537 views

Limit find results in SSH

I using a line like this to search for a bunch of files: find . -name "page.php The results are hundreds of lines and I can't see it all. (I'm trying to just copy/paste it into excel to analyze ...
1
vote
0answers
962 views

Use dd to backup disk image within an OpenVZ container

I want to use dd to backup the disk of an OpenVZ VPS in addition to traditional cold tar backups. Because I may need to migrate to a different VPS provider. From end user point of view, OpenVZ ...
1
vote
2answers
92 views

how to require sudo to view files?

I have a ssh server. I allow people to connect to it if they want. I do my programming homework on it. I am in trouble with my teacher because people were cheating off it. I need to know how to ...
3
votes
1answer
2k views

New terminator window on remote server

Is there a way to open a new terminator pane on a remote server when connected by ssh? I am looking for something similar to what can be done (according to this answer) by tmux but using terminator ...
2
votes
2answers
770 views

Use desktop speakers over SSH from laptop

I have VLC media player and media files on a desktop CentOS 6.3 set up (without a GUI). I can play the media files at the machine but when I issue the command via SSH it is silent. I'm guessing it's ...
4
votes
2answers
465 views

Is it possible to store ssh connection in bash script instead of $(ssh user@ip command) every time?

I think that the code that I already have is not very efficient as it has to connect each time to the same machine and execute a command. Code: tmp=$(ssh -nq $USER@$IP "$COMMAND" 2>> $LOG) ...
7
votes
3answers
476 views

OpenSSH - map aliases in ~/.ssh/config to IP addresses in command line

Is it possible to query ~/.ssh/config in the command line? Let's say I would like to retrieve what IP address does the particular alias point to in a separate program, is it possible?
6
votes
3answers
4k views

Are there disadvantages in SSH tunneling?

I recently "bought" a VPS that I want to use as a Proxy to be able to use some sites and stuff that I can't reach from germany. Since I was yet too lazy to set up Squid and OpenVPN (which I ...