SSH (Secure SHell) is a protocol for running commands on a remote computer.
1
vote
0answers
11 views
How can I use ForwardAgent with keychain, or detect a new login?
My scenario:
I have Server A at home, and Server B at my parents house. I also have Laptop A and Laptop B at home. I do all sorts of strange ssh hops - I might connect Laptop A -> Server A -> ...
0
votes
1answer
54 views
Counting files on a remote server with ssh and an expect script
Below is my script to take count for files which are present in remote server.
But it is not working. Please help me.
#!/usr/bin/expect
spawn ssh [email protected]
expect "123"
send "123"
interact
...
2
votes
2answers
46 views
Automatically unlock keys on a remote host accessed via SSH
On my local PC my ssh keys are automatically unlocked on login. From there I access via ssh (with key authentication) a server that have stored the same keys I have in the client. I'd like to unlock ...
2
votes
1answer
21 views
How can I silence ssh-agent?
I have a script like this one at my .bashrc file at the mysuer home:
eval `ssh-agent`
ssh-add /path/to/my/key
The problem is I have this output when I log with the user mysuer (su - myuser):
Agent ...
3
votes
2answers
85 views
SSH login via IPv6 successfull while using IPv4 to the same host yields “Permission denied”
I'm currently stumped by a strange problem… I have a dual stack host to which I want to SSH. If I connect via IPv6 everything works like expected
datenwolf@foo ~/ > ssh -6 bar.example.com
...
0
votes
0answers
30 views
SSH remote command execution: get output before execution ends [duplicate]
Consider the following simple c program test.c:
#include <stdio.h>
int main(void){
printf("foo\n");
sleep(5);
printf("bar\n");
return 0;
}
The program prints ...
3
votes
2answers
26 views
Specify script to run with SSH upon login
I would like to know if there is a way to specify what script to run (on the remote machine) at login. I'm logging into a Debian box with key-pair authentiation (no password needed). The script ...
4
votes
1answer
236 views
How many users does Linux support being logged in at the same time via SSH?
I know Linux supports multiple users being logged in at the same time.
But what's the maximum number of users that can be logged into Linux at the same time?
I see there are there are 69 tty files ...
5
votes
2answers
153 views
Special character '#' in Perl SSH command
I try to send command using SSH in my perl script with # but it gets truncated right at #
Example:
Input text is :
$message = "Product ID # STK000134"
The SSH command is :
$execute=`ssh -q ...
1
vote
1answer
28 views
Why does rsync look for DSA instead of RSA key when run from cron job?
I want to backup files from a server to my local computer using rsync. I can only log-in to the server with an RSA ssh key.
I have stored the passphrase to the key in Seahorse Passwords and Keys, ...
0
votes
1answer
49 views
SSH connections not accepted after configuring NFS?
I have a couple of servers in a VPC in Amazon EC2. One of them acts as a NFS server, and one of them as a client.
I recently noticed a problem in the client that after a reboot, it would reject all ...
1
vote
0answers
43 views
Using sshpass, return code (exit status) differs for reasons unknown using valid commands
There are a few things going on here but I think ultimately, either CLish or SSH is returning an exit code that is messing up my work flow.
I'm attempting to connect to a remote machine (CLish shell) ...
2
votes
0answers
29 views
ssh-add -D doesn't erase stored keys from the ssh-agent
How come this happens?:
stan@tcpc:~/.ssh$ ssh-add -l
8192 e0:45:5e:cc:45:3e:17:2b:a6:54:6f:8d:53:1b:j2:e3 github (RSA)
2048 25:41:53:a6:45:5d:ac:eb:5c:45:f8:ce:42:a9:he:aa BITBUCKET (RSA)
...
12
votes
5answers
421 views
what's the purpose of ssh-agent?
I've read the official definition:
ssh-agent is a program to hold private keys used for public key authentication (RSA, DSA, ECDSA). The idea is that ssh-agent is started in the beginning of an ...
1
vote
1answer
33 views
Why ssh -nq -t can't see my environment variable?
I am executing a command on remote machine with -t flag ( to prevent the command from 'blocking' ) the prompt (somehow it works that way). So I am using ssh -nq -t root@ip but with this, the script ...
