SSH (Secure SHell) is a protocol for running commands on a remote computer.
0
votes
0answers
3 views
Expect Rsync with Double quotes
Below is my code:
#!/usr/bin/expect -f
set timeout -1
spawn rsync -arvz -e 'ssh -p 1690' --protect-args --progress /home/pappu/ '[email protected]:/volume1/56 - Backup Server/pappu'
expect "password:...
0
votes
0answers
21 views
Create user who can only ssh and reboot machine [duplicate]
I have a problem when I want to create user for SSH and rebooting the machine only. What I did is I just created a normal user.
But normal user can access other commands like reboot, vim, ps, etc. I ...
1
vote
0answers
22 views
Why is it not possible to connect to my server using RSA from an Ubuntu machine?
I tried to connect to my server using
ssh [email protected]
The result was:
Unable to negotiate with xxx.xxx.xxx.xxx port 22: no matching host key type found. Their offer: ssh-dss
Then I ran
ssh ...
1
vote
0answers
17 views
Garbage characters when using serial connection over SSH connection with minicom/screen
I have a serial connection made with /dev/ttyUSB0 locally from my laptop to a cisco lab router and using minicom/putty/screen all work fine locally (hardware control: on, software control: off, 9600 ...
0
votes
0answers
19 views
key load error on trying to ssh to server
I get the following error when trying to ssh into a server running Mac OS X. The client is also running Mac OS X.
ssh -v server.lmd.edu
OpenSSH_6.9p1, LibreSSL 2.1.8
debug1: Reading configuration ...
1
vote
0answers
48 views
How to send sudo password over pipe? [duplicate]
I need to replace existing sshd config on the remote PC and restart sshd, so I try to use this:
cat /sshd_cfg | ssh [email protected] "cat > /etc/ssh/sshd_config && service sshd restart"
...
0
votes
1answer
54 views
Script wont return when executed via SSH
I am calling a script via ssh client like this:
ssh root@host "su - oracle -c '~/bin/weblogic start'"
The ~/bin/weblogic is a bash script that actually starts the web server in the background and ...
0
votes
1answer
14 views
How to execute my shell script on remote Ubuntu Server using Net:SSH Ruby library? [on hold]
I am simply trying to install RVM on my remote Ubuntu Server. So for that I create a shell script so that I can automate the full installation process. When I tried to connect to the remote ubuntu ...
1
vote
0answers
34 views
password fails over ssh, works locally
This weekend I really dove into unix and got a Arch installed on an old computer and got it to serve my website. So I'm a bit of a noob.
Today I went to copy a database file from my Mac laptop to my ...
6
votes
1answer
88 views
What does '?' represent under TTY
If you run ps in your terminal, you may see something like the following:
What is ?? I'm ssh'ing into a Linux server, so I assume that it's just the sshd as it says under CMD, but I'm curious what ...
0
votes
2answers
28 views
SCP command keeps asking password
I've been struggling for days with this now and can't find what I'm doing wrong.
I've got a website on a VPS server. Every night I make a backup of the database. It gets stored on my VPS server. I ...
2
votes
0answers
44 views
ssh connection to OSMC fails after giving the correct password
I have a freshly setup Raspberry Pi 3 with OSMC; I can't login via ssh.
I can open a shell when using my wireless keyboard, sudo -s works, and AFAICS, WiFi connection is fully functional, including ...
0
votes
1answer
25 views
SSH DNS lookup on local IP addresses [duplicate]
As I have come to understand, SSH always goes through the process of reverse DNS lookups whether you are connecting to [email protected] or a local server [email protected]. I do not know, ...
0
votes
1answer
47 views
SSH takes too long to ask for password
I've seen many other questions on this subject but none seem to actually solve my problem. Like any other day, I connect to my LOCAL Raspberry Pi server from my client machine at 192.168.0.5 with ssh ...
0
votes
1answer
15 views
How can I forward multiple ports in the SSH configuration with LocalForward?
I want to forward multiple ports. So far my configuration looks like this:
Host myhost
Hostname 123.123.123.123
IdentityFile ~/.ssh/id_myhost
LocalForward 8811 localhost:8811
...
1
vote
0answers
23 views
Shell Hangs After Running cd, ls, vim over ssh
I'm logging onto a computer cluster over ssh. The problem is I can't do much more than that.
Whenever I run things, eg: vim, cd, ls the cursor just hangs there and nothing else happens.
I've heard ...
-2
votes
1answer
46 views
Gather data from 100 AWS servers [closed]
I have 100 servers running on AWS. I need to easily get how much data each user on the remote systems are using and output it to a text file. How could I best accomplish this?
-2
votes
1answer
23 views
How do I ssh my Mac from another server? [duplicate]
I want to ssh my iMac at home from my MacBook when I'm away, but I can't figure out how to ssh when I'm not on the same local network. I have configured my iMac to accept ssh through the "Remote login"...
1
vote
2answers
33 views
Autocomplete hostnames when using SSH within history file
I'm looking for a feature that help me to autocomplete the servers I "sshed" in sometime and are in my .bash_history file without messing with known_hosts file or /etc/bash_completition, just grab ...
0
votes
0answers
36 views
running iperf over ssh
I'm trying to benchmark the network connection between 2 ubuntu servers on which I don't have root privileges.
I did manage to download and start iperf-2.0.9 on both boxes.
My problem is I can't ...
3
votes
0answers
29 views
SSH with chroot and only working “sftp”, “rsync” (both)?
I have two users and one shared folder in my Ubuntu server:
User writer, which has write access to /var/shared. It's an application regularly making file changes in this folder from remote, with SSH ...
3
votes
0answers
52 views
openSSH login slow for one user but not others
I'm running a server at home with Ubuntu 14.04. I have two users on the machine, say user1 and user2, each able to ssh into the box. While user1 logs in very quickly, user2 takes about 20 seconds to ...
1
vote
1answer
29 views
parallel file copy using tee unexpectedly slow
we're copying a large zfs snapshot (zfs send) from site-1 to site-2. site-1 and site-2 are remote, and are connected via IPsec (read: slow)
on site-2, we need the data on two different zfs servers. ...
0
votes
0answers
89 views
successful ssh login but no prompt
I'm going to connect to my university cluster with ssh. Login is successful but it doesn't show the prompt line, it just shows a blinking coursor.
I could connect to ssh before and it was working fine,...
0
votes
1answer
17 views
Unable to download data using curl for loop
I'm trying to download data from the following link
export ICTP_DATASITE='http://clima-dods.ictp.it/data/Data/RegCM_Data/EIN15/1990/'
These are the codes :
for type in "air hgt rhum uwnd vwnd"
do
...
0
votes
3answers
35 views
How can I create a virtual serial port that relays data over ssh?
I have a serial port on a remote linux box which I can access over ssh.
I would like to create a file (not a real file, maybe a device file or unix domain socket?) which when written to writes to a ...
2
votes
1answer
24 views
Difference in ssh/scp host resolving and network reachability
I've got a virtual machine running on KVM on my localhost. I can ssh into it without problems using hostname (entered in /etc/hosts) or the IP address.
With:
scp root@remote:/somefile root@localvm:/...
0
votes
0answers
18 views
Echo variables sshpass [duplicate]
I want to do sshpass to a server to get lots of information from it.
But as some logic will be involved, I tried to create a variable inside sshpass and echo to the client (first test). It is not ...
0
votes
1answer
37 views
SSH Tunnel “channel x: open failed: connect failed: Connection timed out”
I've Googled and searched far and wide for some sort of "solution" to this problem; however, the best answer I got is "There's nothing that can be done."
Of course, that's unsatisfying, so here goes:
...
0
votes
2answers
39 views
Can't SSH (connection refused) [closed]
I'm trying to set up a headless machine running manjaro. I install and enable openssh, and can ssh localhost, but can't ssh by another machine. Plus, if I modify the /etc/ssh/sshd_config I cannot even ...
0
votes
0answers
29 views
Browse remote machine files in Nautilus
I'm running old Debian machine:
Distributor ID: Debian
Description: Debian GNU/Linux 5.0.2 (lenny)
Release: 5.0.2 Codename: lenny
And I'm using Nautilus file browser in it:
I'm missing "...
-1
votes
1answer
46 views
How can I pass the file names to xargs and truncate them? [closed]
I have to write a script which will ssh into servers and truncate log files
My script is
#!/bin/bash
for server in $(cat c10_servers.txt)
do
ssh $server " ls /var/log/hello grep -i hello.log. |...
3
votes
1answer
53 views
PAM failing to authenticate sudo, after successfully contacting ssh-agent
Setting up PAM sudo authentication, using ssh-agent, on 14.04.1-Ubuntu server LTS.
I'm still unable to successfully authenticate sudo, via the ssh-agent, using PAM.
Here are my relevant /var/log/...
0
votes
1answer
42 views
Questions about session keys used in ssh
From SSH handshake process explained http://www.cathaycenturies.com/blog/?p=1635
Key Exchange
The client has a public & private key pair. The server has a public & private key pair....
2
votes
1answer
54 views
Submit password with sudo and execute script with nohup
I would like to download and run a script in the background so the task is independent of the shell and its exit. Moreover this script should be run as sudo, using:
echo MY_PWD | sudo -u MY_USER -S .....
3
votes
1answer
34 views
Capture output (sdout/stderr) of SSH port forwarder
I would like to store the error below in a variable:
ssh -M -S /invalid/path/forwarder.socket -fnNT -Llocalhost:6301:remote_server:22 proxy_server
muxserver_listen bind(): No such file or directory
...
-4
votes
2answers
72 views
How do I remotely connect to my iMac from another server? [closed]
I want to ssh my iMac at home from my MacBook when I'm away, but I can't figure out how to ssh when I'm not on the same local network. I have configured my iMac to accept ssh through the "Remote login"...
1
vote
1answer
45 views
Make an IF condition out of result we get from remote server
I need to check for files availability in remote server, and based on the files availability i need to make an if condition.
I have tried the below commands in a shell script to list the files in the ...
0
votes
0answers
15 views
Raspberry pi. Set up WiFi netctl profile with No keyboard and No wired lan connection
I have a raspberry pi 3 and a hdmi tv set up. I have NO keyboard and NO wired lan access.
I want to set up a WIFI profile with netctl.
I want to create a static IP for the pi.
I have another laptop ...
4
votes
1answer
30 views
ssh dynamic port forwarding and tcpdump shows cleartext
I'm trying to encrypt my web traffic using SSH dynamic port forwarding in case I happen to be in moot places such as internet cafes, hotels and so on.
On my laptop I installed an SSH server and ...
2
votes
1answer
50 views
constant “enter passphrase for public key” by ssh
What could be the reason that ssh < host > is asking for public key password
Enter passphrase for key '/home/%d/.ssh/id_rsa.pub':
even if provided a good password?
I have no problem with ...
-1
votes
0answers
11 views
forward Windows application connection to a unix VPS to bypass port restriction
my campus has blocked all ports except those for webpages 80, 443, but funnily I can access my SSH via putty with port 88888 configured on its sshd.
I am wondering if there's a way I can make my ...
2
votes
1answer
138 views
specify shell for ssh session
I am logging to a remote server via ssh as user www-data. User www-data on the server has his default shell set to /bin/sh, and when I log in, I get dash as my shell. I can then type bash and get bash ...
2
votes
1answer
36 views
How are session keys, public/private keys generated on the ssh server and client and used?
From SSH handshake process explained http://www.cathaycenturies.com/blog/?p=1635
Key Exchange
The client has a public & private key pair. The server has a public & private key pair....
1
vote
3answers
39 views
How to SSH via intermediate server [duplicate]
Three server A,B & C. How to ssh connect from A to C via intermediate server B, if A to B & C to B are password less(key)? I encountered this in an interview. Anyone knows how?
0
votes
1answer
14 views
Download with rsync through bastion/jumper, without .ssh/config changes
I'd like to download a file from server C, through server B (bastion) to my local server A.
Normally I'd handle the mess in ssh/config with ProxyCommand, but in this case I can't. Can we make a one-...
-1
votes
1answer
60 views
How are public and private keys used in ssh?
Assume I have set up public/private key authentication in ssh.
Is it correct that the ssh server possesses the public key but not
the private key, while the ssh client possesses both the public and
...
0
votes
0answers
60 views
allow user to ssh
I have a VPS that I am using to run some websites but also want to allow apphosting on this server. So I have installed Meteor in folder on the server and only want to allow access to specific user to ...
