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

learn more… | top users | synonyms

1
vote
0answers
753 views

Connect two VirtualBox virtual machines through SSH

I have two VirtualBox virtual machines: one with SuSE Enterprise 10 and one with Red Hat Enterprise 5. I want to connect through SSH from RedHat to SuSE. Both are configured to use a bridged adapter ...
1
vote
0answers
2k views

putty connection works but ssh command line refuses password authentication

I'm struggling quite a lot around ssh tunnels today. First, here is my configuration: My local machine, a PC with windows XP (ip=l.l.l.l) My remote server, with a CentOs 5 installed (ip=x.x.x.x) ...
1
vote
1answer
72 views

Bad known_hosts file when connecting to loadbalanced domain

FOO.COM has two A records. 1.1.1.1 and 2.2.2.2. If I connect to ssh root@FOO.com then it sometimes can connect, sometimes it writes that there is a key mismatch, update known_hosts file. So I know ...
1
vote
0answers
240 views

Reverse ssh-agent forwarding and unlocking remote keys with your local keys

So the following two things should both be possible to do with ssh the question is just how difficult they would be and I'm hoping someone can give me an easy answer. 1) Suppose I have several ...
1
vote
1answer
1k views

How to log SSHD failed logins with usernames under OpenBSD 5.3?

Since DYNDNS became a payed service, I found a solution to dynamic IP address problem: OPENWRT router side (dynamic IP, this line is in the CRON): echo close | ssh LOCATION@SERVER -p 22 > ...
1
vote
0answers
485 views

Log in to multiple remote servers and execute a script [duplicate]

I want to make a script that will remote login to the multiple servers listed in a txt file like 10.3.9.6 10.3.9.7 and all servers have same username and password. and want to capture the output of ...
1
vote
1answer
280 views

Cannot connect to ssh from crontab

I can create ssh connection from the command line with this command(without password): ssh -R 9900:localhost:22 user@host I need to run this command whenever the system reboots, so I put it in a ...
1
vote
0answers
4k views

Using sshpass, return code (exit status) differs for reasons unknown using valid commands

There are a few things going on here but I think ultimately, either CLish or SSH is returning an exit code that is messing up my work flow. I'm attempting to connect to a remote machine (CLish shell) ...
1
vote
0answers
1k 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
0answers
165 views

Client-server app for sending and monitoring asynchronous jobs

I am looking for a desktop app/IDE in which you can: Maintain a list of UNIX/Linux connections Be able to write a script locally in a local editor, not SCP files to the host or writing them on the ...
1
vote
0answers
70 views

Run a script (for an app GUI) when logged from NX but limit shell commands on terminal

I have a user which will be accessing an app GUI via NX NoMachine. I want to allow this user to execute the command to bring up the app GUI (done automatically by NX) BUT prevent him from executing ...
1
vote
0answers
425 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 ...
1
vote
0answers
898 views

ssh: “Error reading response length from authentication socket”

I have a Makefile with some ssh and rsync commands. All of them are executed correctly, but give the following error message: Error reading response length from authentication socket. I don't like ...
1
vote
0answers
40 views

Calling xrandr via SSH [duplicate]

Possible Duplicate: Open a window on a remote X display (why “Cannot open display”)? I'd like to ssh to a host running an X server and use xrandr to query and update things ...
1
vote
0answers
629 views

SSH cannot connect from Remote computer after a while

I can successfully connect to Debian via SSH. The problem is that after a while — one or two days I think — it depends on the number of times I connect, I cannot connect remotely... only ...
1
vote
0answers
154 views

How to chain SSH? [duplicate]

Possible Duplicate: Common multiple SSH connections file handling issue I want to reach hosts that are only indirectly accessible with SSH/SCP/SFTP. Are there more solutions for this? Are ...
1
vote
3answers
77 views

rsync to remote server without password [duplicate]

I seem to be having a little issue with connecting to a remote server, to rsync my backups what i have done so far run ssh-keygen created public and private key run ssh-copy-id -i my.key.pub ...
1
vote
1answer
232 views

rsync with different user

I'm working with two ubuntu instances on AWS (which I use a pem key to access them). I set up rsync for both instances, and it works if I use the default user which is ubuntu@ipaddress. However if I ...
1
vote
3answers
396 views

Check services running on the server and restart them if they have stopped?

I am trying to write a python script which shows me the services which are running on my server. The thing is that mongodb keeps going down on the server and each time it happens I have to manually ...
1
vote
3answers
3k views

Can a command be executed over ssh with a nologin user?

If a user has loginShell=/sbin/nologin is it still possible to ssh user@machine [command] assuming that the user has proper ssh keys in its home directory that can be used to authenticate? My ...
1
vote
3answers
167 views

What will be prioritized in a conflict between ~/.ssh/config hostname and /etc/hosts?

What if one host is defined in /etc/hosts like: 192.168.0.100 server and one is defined in ~/.ssh/config like: Host server HostName 192.168.0.100 and you ssh into server: ssh ...
1
vote
1answer
110 views

How to create a SOCKS only group?

I am currently trying to set up a user group that can connect to a server over SSH but only proxy through it. They can't see any files or run any commands. Users in the group would also be able to use ...
1
vote
3answers
3k views

Port 22 connection refused

I’m trying to copy a disk image over ssh to my local machine using this tutorial on linodes website. I know this could be posted on their support forum, but im convinced its in the general realm of ...
1
vote
2answers
820 views

How does this shell command work?

The following command puts the content of the local id_rsa.pub into the authorized_keys file on the host. But I don't quite understand how cat and | works together to achieve this goal, can someone ...
0
votes
5answers
8k views

SSH login attempts per minute per IP

How can i limit SSH login attempts per minute per IP ? I want to disable login attempts during 5 seconds after a failure. Is this possible ? I'm not talking about ban a user after parsing logs like ...
0
votes
4answers
118 views

How to run subshell commands over SSH?

I have a cluster of computers which are connected via passwordless SSH and I have written a utility which runs a command over the entire cluster. The way it does it is by picking up machines present ...
0
votes
3answers
975 views

Is there a central repository of SSH keys on a system? Does SSH keygen put the private key in that location?

I just generated a public and private key with ssh key gen. I uploaded the public key onto a gitlab (basically a clone of git hub) system for my university and got an email saying that I successfully ...
0
votes
2answers
153 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
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 ...
0
votes
3answers
762 views

Unable to ssh out from my laptop

I'm unable to ssh from a particular machine, either from my Ubuntu 12.04 install or my Windows Vista install (using putty). I'm trying to ssh into a remote machine where I have an account, but I keep ...
0
votes
3answers
1k views

Running remote script via ssh command

I have a script on remote Debian server machine and I want to run a command by invoking: ssh server "find.sh" My find.sh script is in in: /home/user/bin First of all, I ran ssh server "echo ...
0
votes
3answers
566 views

Can a command be executed without a shell?

I am developing a binary executable program command to execute programs and return the output into a text field. The parameters to the command involve the command itself as it would be typed on the ...
0
votes
1answer
338 views

I can't copy remote file using scp but I can log in using ssh

I've a NAS DNS-320L from dlink running the original firmware + fun_plug which enable NAS to receive ssh connections. I can use the user ricardo to log into the server by ssh. [ricardo@crudo:~]$ ssh ...
0
votes
1answer
11k views

SCP without password prompt using different username [duplicate]

I have 2 servers, Server1 and Server2. On Server1 I have a user named user1. On Server2 I have the user named user2. I need to be able to write a script that runs on Server1, which will scp some ...
0
votes
2answers
422 views

SSH Key not working [duplicate]

I created an SSH key on my laptop using ssh-keygen and then put it on some production servers so that I don' have to type my password every time. On some servers it is working well, but on some it's ...
0
votes
2answers
849 views

Can't use SSH anymore after installing denyhosts

so I'm in a very tricky situation. I've installed denyhosts on my debian machine and suddenly I can't use SSH anymore. Hopefully I could still login through webmin, but with root, so I had to login ...
0
votes
3answers
4k views

Creating directory on an external hard drive via command line (SSH) on Linux

I have tried many approaches to create a directory on my external hard drive. Here is the details when I do fdisk -l What I get: pi@raspberrypi:~$ sudo fdisk -l Disk /dev/mmcblk0: 3965 MB, ...
0
votes
3answers
9k views

What is the equivalent of telnet localhost 25 with ssh?

What is the equivalent of telnet localhost 25 using SSH ? Clarification : I would like to have an SMTP connection with a server using SSH, just like it can be done with a command like telnet ...
0
votes
1answer
641 views

How do I escape a dot character for an rsync command? [closed]

I'm trying to do... ssh -av -e deploy@domain.com:/var/www/domain.com /Users/user/workspace/domain But it's outputting this (I presume because of the period character): OpenSSH_5.6p1, OpenSSL ...
0
votes
3answers
2k views

Read first line of a command's output. Command connects me to a remote terminal

Part 1 Say I have a command my_command that outputs multiple lines. I would like to capture the first line of my_command's output as soon as it's ready in a script, while keeping my_command ...
0
votes
2answers
53 views

How to append a file through ssh? [closed]

I want to append a file that is already present on the server through ssh i m try: ssh root@192.168.100.195 echo "hello gourav how are you">/g.txt but no data in g.txt
0
votes
1answer
156 views

Bash script with ssh not returning value of variables

I'm working on a bash script to help migrate KVM virtual machines, but I'll be using dummy code to explain what is going on. I'm using functions to break up the tasks perform on a remote servers ...
0
votes
2answers
115 views

How to scp self?

I want to scp from myself to myself, but am getting Permission denied (publickey) errors. This is more of a edge case of a script, but I feel like there shouldn't be an issue with it. ifconfig | ...
0
votes
3answers
209 views

ssh from screen leads to unknown terminal error

I'm trying to make an ssh connection (via lsh) from one Ubuntu host to another from within screen. If I try to run mc right after that I get the following error: Unknown terminal: screen-256color-s ...
0
votes
1answer
100 views

SSH: how to connect withou password knowing only passphrase?

Short question: I got a task to update a git repository. Information I received is following: host, port, user name and ssh key's passphrase with information that key's type is rsa. How can configure ...
0
votes
1answer
782 views

sshd resets connections on different port

I want to run SSHd on my raspberry device on two ports. I've added Port 22 Port 5500 to /etc/ssh/sshd_config, and ran /etc/init.d/ssh restart. Problem is, that connection on port 5500 is always ...
0
votes
3answers
84 views

Is there a log for sshd where I can see who has used ssh to access my PC? [duplicate]

I am running the OpenSSH daemon (sshd) on CrunchBang Linux, and I want to see a history of who (i.e. IP address) has logged in using SSH.
0
votes
1answer
120 views

Can I cancel SSH (after using it to browse) without logging out?

I've used the command ssh -D 8080 -f -C -q -N user@IP to SSH into a VPS and set it to browse in the SOCKS proxy settings in System Preferences (on my Mac). How do I cancel the SSH session (and browse ...
0
votes
3answers
3k views

Script to login to ssh twice

I need to login through ssh twice with a script and can't get it to work. This is what I have in my script file: #!/usr/bin/expect set login "user" set addr "address1" set addr2 "address2" set pw ...
0
votes
3answers
146 views

When you ssh into a server, do you use server settings or your own settings?

So say I'm running a Linux server that is running irssi in a tmux session.(Detached) My question is, when I ssh into the server and reattach the session, will my shortcuts that I use on the 2nd PC ...