Writing a simple test script that looks for ssh, kills if its running and verifies if its still running. If it isn't, move on. My issue, its cause I don't know how, is to verify if ssh is running still. Also, is there a way have this do this on a remote server?
If it is not running, you will not be able to ssh into the remote machine.
Quote:
I already have the ssh keys working so all I need is to know how to code that part. below is what I have, help is much appreciated!
#!/sh/bin
check_stat=`ps -ef | grep sshd | grep -v grep | awk '{print $2}'`
if [ "${check_stat}X" != "X" ]
then
echo "SSHD is running"
else
echo "SSHD isn't running"
for pid in $check_stat
do
echo "Killing $pid"
kill -9 $pid
done
fi
Why do you kill it if it isn't running?
Code:
check_stat=`ps -ef | grep '[s]shd' | awk '{print $2}'`
if [ -n "$check_stat" ]
then
echo "SSHD is running"
echo "Killing $check_stat"
kill -9 $check_stat
else
echo "SSHD isn't running"
fi
I ran an ssh command to run a script on a remote server
ssh -l <user> <servername> /path/to/script/scriptname
This works fine - and the script is executed correctly.
However - I put this command into a script, that I want to run from cron every hour, to execute the file on the remote... (31 Replies)
Hi all,
I have a situation where I have a shell script that I need to run remotely on multiple *nix machines via SSH. Unfortunately, some of the commands in it require root access. I know that best practices for ssh entail configuring it so that the root account cannot log in, you need to... (4 Replies)
I'm working on a script (mostly for practice) to simplify a task I have to do every now and then. I have a cluster with 6 servers on it, each server has a directory with a set of files called *.pid and *.mpid. Each file contains the pid of a process that may or may not be running on that server.... (3 Replies)
Hello there.
I'm fairly new to Linux, but I am connecting via SSH and PuTTY to a remote server, and I am running a fairly heavy MySQL script in a PHP page.
Our connection here is dodgy to say the least and I get continuous disconnections.
My question is, when I get disconnected, does my... (4 Replies)
Hello All,
I am trying to run some simulations through SSH from my mac on our university SOLARIS system. My problem is that whenever I want to execute a command I get an error which says "Invalid argument".
Maybe I should explain more what I want to do and what I did.
Firstly I installed a... (10 Replies)
Hi All,
I have prepared a small script to monitor few applications running on diff unix boxes(frontend/backed node1/node2 etc).
ssh does not work for node2 when script executed from crontab..:wall: it work fine when i run it manually.
Regards,
Pavan (4 Replies)
Hello,
I know for SSH'ing and running a local script is...
ssh -t user@servername < /path/to/localscript.sh
and with SSH'ing and SUDO'ing is...
ssh -t user@servername "sudo -u username ls -l /home/username"
My inquiry is how can I combine both, by SSH'ing and SUDO'ing but running... (4 Replies)
Hi All
I have created a script which is running properly "Script".
I want that script to run when I login into another server.
in the code below:
when ssh is executed it asks for password ..After entering password the user is logged in but the script does not run.... whereas when I exit... (1 Reply)
Hi, I'm trying to run a user defined shell script with options and arguments via ssh but getting error as ksh: Script.sh: not found.
Here is what i'm running:
ssh -t username@server 'cd /path/to/script; script.sh -t start
here '-t' with script.sh, is an user defined option and 'start' is also... (3 Replies)
Discussion started by: xsam
3 Replies
LEARN ABOUT MOJAVE
ssh-keysign
SSH-KEYSIGN(8) BSD System Manager's Manual SSH-KEYSIGN(8)NAME
ssh-keysign -- ssh helper program for host-based authentication
SYNOPSIS
ssh-keysign
DESCRIPTION
ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication.
ssh-keysign is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting
EnableSSHKeysign to ``yes''.
ssh-keysign is not intended to be invoked by the user, but from ssh(1). See ssh(1) and sshd(8) for more information about host-based authen-
tication.
FILES
/etc/ssh/ssh_config
Controls whether ssh-keysign is enabled.
/etc/ssh/ssh_host_dsa_key
/etc/ssh/ssh_host_ecdsa_key
/etc/ssh/ssh_host_ed25519_key
/etc/ssh/ssh_host_rsa_key
These files contain the private parts of the host keys used to generate the digital signature. They should be owned by root, read-
able only by root, and not accessible to others. Since they are readable only by root, ssh-keysign must be set-uid root if host-
based authentication is used.
/etc/ssh/ssh_host_dsa_key-cert.pub
/etc/ssh/ssh_host_ecdsa_key-cert.pub
/etc/ssh/ssh_host_ed25519_key-cert.pub
/etc/ssh/ssh_host_rsa_key-cert.pub
If these files exist they are assumed to contain public certificate information corresponding with the private keys above.
SEE ALSO ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)HISTORY
ssh-keysign first appeared in OpenBSD 3.2.
AUTHORS
Markus Friedl <markus@openbsd.org>
BSD February 17, 2016 BSD