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

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1answer
343 views

emacs fonts from ssh not as good as locally installed

How can I have the same emacs fonts and antialiasing configuration that I have in my local Ubuntu 12.04 also working when I open an emacs session via ssh to a CentOS 5 system? EDIT: I didn't get an ...
0
votes
1answer
43 views

Synchronizing subdirectory with root directory

I have files like this on my linux web server: folder1/ <- main, this is where users of my page are led to folder1/testing/ <- copy of folder1(without folder1/testing/) to modify and optimize ...
0
votes
1answer
495 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 ...
30
votes
2answers
45k views

scp and compress at the same time, no intermediate save

What is the canonical way to: scp a file to a remote location compress the file in transit (tar or not, single file or whole folder, 7za or something else even more efficient) do the above without ...
1
vote
1answer
140 views

Access X-window and sound on laptop on another Unix

I read up a lot about forwarding x-server onto remote machines, but I feel like I'm too dumb to get it to work. Let me first explain my goal: I have a Rasberry Pi running archarm hooked up to a TV. ...
2
votes
1answer
940 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 ...
5
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3answers
3k views

Transferring Files SSH SCP Error Message: 'Stdin: is not a tty'

I am using a Macbook SSH terminal and generated RSA key pairs and uploaded remote id_rsa.pub with approved permissions. I can connect with remote Apache web server. I can create, open, move, modify ...
2
votes
1answer
6k 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 ...
17
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5answers
25k views

Automated ssh-keygen without passphrase, how?

I would like to make an automated script that calls ssh-keygen and creates some pub/private keypairs that I will use later on. In principle everything works fine with.... ssh-keygen -b 2048 -t rsa -f ...
1
vote
1answer
218 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 ...
2
votes
5answers
4k views

How to securely automate running commands as root with “sudo su -”?

hint (on client side, how to encrypt files/pwd's): # encrypt pwd with ssh key: openssl rsa -in ~/.ssh/id_rsa -outform pem > ~/.ssh/TEMP-id_rsa.pem 2>/dev/null openssl rsa -in ~/.ssh/id_rsa ...
5
votes
4answers
28k views

How can I share files between two Linux machines over LAN?

I am currently running Fedora 18 with Gnome on two computers which are connected to the same router. I have been using Samba to share files between the two, but I know there must be a better way. On ...
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vote
2answers
2k 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
3k 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
39 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
202 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 ...
0
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1answer
197 views

Local host always being added to /etc/hosts.deny when trying to SSH

I have a rather odd problem with my server. For some reason the local hostname for my workstation keeps getting added to the /etc/hosts.deny and when I try to SSH I get: ssh_exchange_identification: ...
3
votes
1answer
4k 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
224 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 ...
3
votes
2answers
1k views

Detecting monitors on machine over local ssh connection

I need to write a script to check on video related things on machines in the local network, e.g. Is a monitor plugged in? Are the video drivers up to date and appropriate for the hardware? Is Xorg ...
-1
votes
1answer
236 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 ...
20
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2answers
8k 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
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2answers
159 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. ...
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2answers
1k views

access a command line via a web browser

2 questions: Question 1 My job blocks ssh which means that I cannot ssh to my home server. However, they do allow https out. Is there a package out there for ubuntu that will allow me to connect to ...
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2answers
314 views

SSH -L Tunnel no longer working

Local machine running my scripts needs to access a remote server's DB. Last week I could do, on the local machine ssh -f -N -T -L1081:localhost:3306 ueser@remoteserver -p2222 on the local machine: ...
2
votes
2answers
775 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: ...
9
votes
4answers
15k views

Prevent SSH client passing TERM environment variable to server?

I'm currently using Fedora 18 gnome-terminal, then started tmux multiplexer in it. After I connected to a CentOS 5 server via ssh command, I find: ls result has no color tmux, screen, hexedit, htop ...
2
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0answers
93 views

Why isn't hydra being disconnected?

I have SSHD running on port 5800 on some machine. (It is a my machine at home.) If I run this manually in a terminal: # ssh someIP -p 5800 The connection is lost because I am disconnected after 3 ...
4
votes
2answers
2k views

ssh_exchange_identification: Connection closed by remote host

OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug2: ssh_connect: ...
2
votes
2answers
674 views

Provide passphrase to plymouth ask-for-password from command line

I'm working on booting a headless server (Fedora 16), entering the passphrase to decrypt the root disk (LUKS) over SSH using dropbear. I've got dropbear all working: I can SSH to the server while it's ...
2
votes
2answers
688 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
266 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 ...
3
votes
1answer
982 views

Route SSH to host through interface

Is it possible to route all outgoing requests for SSH (port 22) to mydynamicdns.afraid.org via wlan0 instead of eth0 when both are connected? Since my IP is dynamic, I would like to use a name ...
0
votes
2answers
294 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 ...
8
votes
2answers
34k views

bash shell - ssh remote script capture output and exit code?

I wish to use shell to invoke a script on a remote server. I would like to capture the output of that script (its logging messages) and the exit code it returns. If I do this: ssh user@server ...
20
votes
3answers
2k views

How to prevent shutdown when an SSH user is logged in?

I'm administrating a networked environment and I had an interesting situation arise yesterday. When a host is required to shutdown by a regular user, it refuses to do so if other users are logged in ...
2
votes
1answer
2k 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
803 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 ...
17
votes
1answer
8k views

SSH causes while loop to stop

I have finally managed to boil down a problem I have been struggling with for a few weeks. I use SSH with "authorized keys" to run commands remotely. All is fine except when I do it in a while loop. ...
1
vote
1answer
335 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 ...
3
votes
1answer
479 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 ...
3
votes
1answer
77 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: ...
2
votes
1answer
2k views

SSH to machines in new subnet - connection timeout

I'm using RHEL4 and RHEL5. A new group of Linux machines are setup recently using 172.16.32.0/24. The existing RHEL machines are running on 172.16.1.0/22 and 172.16.4.0/22. When I try to ssh from ...
1
vote
1answer
436 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 ...
2
votes
1answer
206 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 ...
19
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5answers
12k views

Does a `scp` transfer close when I close the shell?

I have scp transfer (from one remote server to another), that is quite big. So maybe I want close the computer from which I executed this command, will this end the transfer? I have ssh access to ...
28
votes
4answers
24k views

Why SSH takes a long time to Connect

I have noticed that some Linux Servers in Network takes long time to connect using ssh. Situations: There are two situations I have faced: On some servers some times it takes a long time to ask ...
3
votes
1answer
1k 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
4answers
1k 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 ...
0
votes
3answers
655 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 ...