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

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4
votes
1answer
715 views

How do I stop ssh-agent trying all keys with agent forwarding?

Often I'll connect via SSH to VM instances to deploy code from private Bitbucket repositories, cloning repositories via git over SSH. Today I was getting the error: conq: repository access denied. ...
0
votes
1answer
17 views

sshfs - transport endpoint is not connected

After reinstalling the server I can not mount it sshfs root@domain.com:/var /remote_mount fuse: bad mount point `/remote_mount': Transport endpoint is not connected update # ssh root@domain.com ...
0
votes
1answer
24 views

ssh/mosh to a remote interactive shell and run specific function

I have the following alias on my local machine: alias gom='mosh -- user@host "/path/to/specific/zsh"' I use it to connect to a remote machine with an interactive shell. I would like to modify this ...
2
votes
1answer
22 views

SSH: Provide additional “pipe” fds in addition to stdin, stdout, stderr

When connecting to a host with SSH, usually three "pipes" are provided between host and guest, for stdin, stdout, and stderr. Is there a command-line option to create forwards for additional file ...
3
votes
0answers
16 views

forward all mysql traffic to a ssh tunnel

I have a local application that needs to connect to a remote mysql server at 40.40.40.40:3306 The main firewall blocks all connections but ssh, I can set up a ssh tunnel and connect to the server ...
0
votes
0answers
10 views

Kali => ssh_exchange_identification: Connection closed by remote host

I'm using Kali Linux to connect to a server remotely using SSH, it used to work out, but suddenly I got the message: ssh_exchange_identification: Connection closed by remote host Even though I've ...
3
votes
1answer
2k views

SSH agent forwarding, multiple hop

I tested this setup with Linux origin machine - everything is the same - only the first hop can use keys from origin machine. Initial problem I'm trying to set up SSH agent forwarding with multiple ...
4
votes
3answers
14k views

Restrict FTP user to a directory

Sorry if this is an obvious question, but I don't have a lot of knowledge about this sort of thing, and I've googled for hours, nothing worked. So on a Ubuntu 11.04 server, I want to restrict a user ...
0
votes
2answers
25 views

X11 forwarding Amazon EC2 significance of sequence number in DISPLAY variable

I am X11 forwarding from an Ubuntu instance hosted in a Amazon EC2 to my localhost. I am able to do the forwarding only when the remote (Amazon EC2) DISPLAY variable is set to localhost:10.0 I ...
7
votes
1answer
143 views

Enable Massive Concurrent SSH to a single server

My goal is to allow 10000 concurrent sshs running on a single server. For simplicity I am ssh-ing to localhost: for i in `seq 1 10000`; do ssh localhost "echo ${i}; sleep 100" >>./info ...
-1
votes
0answers
15 views

Can't access 192.168.7.2 on beaglebone black via Chrome

For some time now, I've not been able to ssh to my beaglebone either through apps like putty or via the recommended web browsers. Although cloud9 IDE works fine and I can access the beaglebone over a ...
0
votes
0answers
22 views

Can't show the content of /sdcard of my Android phone from sftp in Ubuntu's Nautilus or FileZilla

I set up a ssh server on Android using SSH Server by Ice Code App. Settings of ssh server: http://i.stack.imgur.com/ZlbzJ.jpg http://i.stack.imgur.com/b1X4i.jpg ...
0
votes
1answer
21 views

Is there a default ssh server or ftp server running on most linux distros?

I am quite new to using linux and I am wondering if, in most circumstances there is a default ssh and or ftp server running. I have started a few virtual machines and I have always been able to ssh ...
1
vote
1answer
716 views

iptables allow only ssh and vpn traffic

I have dedicated server with ubuntu 14.10 installed. The server should connect to an openvpn server and the traffic should only go through the vpn, except for SSH traffic. My idea is to realize it ...
0
votes
1answer
23 views

Installed OpenSSH on Mint 17 but it doesn't seem to be running

So I've installed OpenSSH on Mint rafaela 17.2, but it doesn't seem to be running when using the modified config file. Not sure why service says its up, but I don't have a PID, don't have a listener, ...
0
votes
2answers
36 views

How to do port forwarding between localhost and localhost on two machine?

I have a local machine A, and I want to access machine C that is behind a firewall. I have access to machine B, which is on the same network of C, and I want to use machine B as a ssh server to ...
1
vote
1answer
13 views

emacsclient connection refused

I am running emacs in daemon mode and I got dissconnected from the server on which it was running. After re-connect, when I run emacsclient -nc I get the error connect localhost port 6012: ...
0
votes
1answer
67 views

SOLVED No SSH while loged off locally

So, I'm trying to access my laptop while I'm outside my LAN, but I have a problem, at least I think that isn't the normal behavior. I can't access via SSH if my user isn't locally logged in. I'm not ...
0
votes
1answer
24 views

Disabling openssh host key checking on LAN

If I want to specify for LAN addresses that I don't want to deal with host keys, how do I do that? /etc/ssh/ssh_config Host 192.168.*.* StrictHostKeyChecking no UserKnownHostsFile /dev/null ...
18
votes
2answers
26k 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 ...
0
votes
1answer
36 views

SSH to 2 local machines via Unix server

Here is the situation: I have a Windows home machine Home which I can connect to Foo, a Unix server via ssh. Then I can ssh from my Unix work machine Bar to this same server Foo. Windows ...
0
votes
1answer
35 views

Proxy connection via SSH from one terminal to another

I have a private proxy which can be either HTTP/SOCKS, and i am renting a Linode server that i use for web-hosting. If I use a program like putty to SSH onto the webserver and run who it will display ...
3
votes
2answers
44 views

How to skip unresponsive server

I wrote a script that runs on multiple servers. Sometimes the script gets hung on one of the servers and I have to hit (control C) to end the process. If not, it gets stuck and keeps trying to ...
0
votes
1answer
28 views

Debian ssh Cannot Resolve Hostname on DHCP Server

I used to connect to my raspberry pi via ssh using the hostname of the pi and vice versa. Now that doesn't work. I can connect by using the ip address, but that changes daily and it is annoying to ...
33
votes
4answers
12k views

What is a better way to deal with server disconnects of sshfs mounts?

I have several directories mounted through sshfs. I sometimes get disconnects from the server (not configurable by me). I usually mount the directories like this sshfs ...
73
votes
4answers
75k views

Why do I need a tty to run sudo if I can sudo without a password?

I have configured sudo to run without a password, but when I try to ssh 'sudo Foo", I still get sudo: sorry, you must have a tty to run sudo. Why does this happen and how can I work around it?
1
vote
0answers
10 views

How to enable unison to login with ssh from systemd service unit?

I have a pdf-sync.path file for systemd runnin in user-space (systemctl --user enable pdf-sync.path). Whenever there is a change in the folder that I defined in the path file I want to synchronize ...
0
votes
0answers
27 views

How do I send a variable through SSH so it can be used across servers? C Shell

EDIT: Would this be possible in bash? Note: I have to use C shell. (.csh) I have something very similar to the following code: set var = "string" ssh -X server "$var" << END * I ...
3
votes
3answers
375 views

SSH in SSH in shell script

I'm not sure I have the capability to test this right now, but was wondering if someone might advise if it is possible to do something like this: Run a shell script Shell Script SSH's into a ...
1
vote
1answer
859 views

Run a command under sudo over SSH

I am accessing remote machine in Linux using Bash scripting.My code is as follows #!/bin/bash ssh -i manu_bp.pem ubuntu@54.68.67.68 <<EOF sudo -s cat ...
3
votes
2answers
36 views

Archiving to remote-machine with tar/cpio and ssh?

I'm renting a couple of VPS with Ubuntu, and I've managed to fill-up one of them. Here I've got several directories with lots of files I'd like to put into an archive. Unfortunately, I don't have ...
0
votes
2answers
29 views

SSH to docker container is not working

I'm running a Discourse forum software container in an Ubuntu Server, I was able to login to container using the command. sudo docker exec -it app bash And then I've setup password for the root ...
0
votes
1answer
35 views

How to add a folder to a remote hosts PATH using a shell script?

I'd like to automate the process of syncing a local ~/bin folder to a remote host, and adding that folder to my remote shell's path. I've got the syncing part done, but am not sure how to automate ...
6
votes
4answers
43k views

X client forwarded over SSH “cannot open display: localhost:11.0”

I have enabled X forwarding on remote machine where SSH server is running: # grep -i forward /etc/ssh/sshd_config X11Forwarding yes # On local machine, I have started SSH client with -X flag ...
2
votes
1answer
1k views

Chroot gone wrong, can't ssh with user

Distribution: Scientific Linux 6.5 (Carbon), not exactly your typical brand of linux. Tried to chroot a user using these instructions for SSH and quite obviously failed, and now I can't even log in ...
23
votes
4answers
17k 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 ...
2
votes
1answer
819 views

SSH Agent Forwarding on server

I'm struggling with the concept of SSH Agent Forwarding. This is what I've done so far: Create default identity local (ssh-keygen) Install the public key on bitbucket Now I want to connect to a ...
0
votes
1answer
17 views

persisting multi-factor user data for custom pam authentication in CentOS 7

I am designing n-factor authentication for CentOS 7 using a custom PAM module. When the user tries to SSH, they will be texted a pin code, and be prompted to enter the pin. Where should I store the ...
2
votes
2answers
60 views

ssh Public key problem

I have several clients connecting to an SSH server all using public key authentication. I am trying to connect from an Ubuntu 14.04 VM to the same server. Cant get public key authentication working. ...
1
vote
0answers
26 views

Why does rsync -e 'ssh' work but not rsync --rsh=ssh [closed]

This works: rsync -P --partial -e 'ssh -p 12345' me@host:/path . This doesn't: rsync -P --partial --rsh=ssh --port=12345 me@host:/path . AFIK they're supposed to do the same thing. What have I ...
0
votes
1answer
17 views

Lock SSH DOR access the same as VSFTPD?

I'm quite new to Linux, I'm running CentOS 6.7 and I'm trying to follow best practice procedure of creating a user "instead of using root" but I want to restrict their SSH file browsing capability to ...
0
votes
1answer
23 views

ssh master - execute su remotely

I have a server S that I need to connect to. I'm connecting to S as user asdf with control master and after that I perform some stuff: ssh -N -f -M -o ControlPath=$SSHSOCKET ${USER}@${IP} -p ${PORT} ...
1
vote
1answer
46 views

Script SSH and run command

I must connect to server every day by ssh, and I made a script to display logs. This is my code: #!/bin/bash A=`date +%Y` M=`date +%m` D=`date +%d` gnome-terminal --geometry=82x11 \ --tab --title ...
18
votes
6answers
24k views

How can I page up or down in tmux with Terminal.app?

When I am in tmux only a portion of the text shows up. If I try to scroll up or down the console scrolls up but not the actual text. If I do CTRL+b followed by [, I see in the status bar *tmux, and If ...
11
votes
2answers
8k views

Terminate dropped SSH sessions

My SSH sessions seem to be dropping though that is not my major problem - the major problem is my previous sessions are still alive, worse yet one of them is running visudo preventing me from ...
0
votes
1answer
20 views

Command does not execute properly on remote server

I've been trying to update my backup script such that it saves data on a remote server instead of on a local disk. I have succeeded in converting the entire script but the last part in which I remove ...
2
votes
1answer
31 views

ssh forward multiple ports

So this works for me: ssh -v -L 8080:remotewebserver:8080 me@jumphost How about if I would also like to include more ports? I want to forward not only 8080, but also 8443, 8923 and 8181? Do I ...
0
votes
3answers
1k views

Script SFTP with password - HP-UX

I would like create a script in HP-UX to send in sftp with password. I have this command sftp -o PasswordAuthentication= but if I answer yes or no after, I have this issue "Host key verification ...
1
vote
1answer
2k views

OpenSSH hangs after login without showing login prompt

I ran across an issue with ssh after fresh Ubuntu 13.10 installation on Lenovo T420. I tried git pull (which failed) and this led me to more general ssh failing. After spending some 2-3 hrs of ...
2
votes
1answer
720 views

Directx application using wine over ssh -x

I'm trying to run a Windows app (Artemis video game - server mode) on my archlinux server. As it is an windows application I have to run it using Wine. As I'd like to be able to launch the server ...