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I can't directly access target host, need ssh as a proxy.
How can I kill a process from local use ssh ? I try this:
ssh root#$center "ssh root#$ip \"ps -ef|grep -v grep|grep $target_dir/$main|awk '{print \$2}'|xargs kill\""
it got error:
kill: can't find process "root"
And how to avoid error where process not exist ?
Suppose your process' name is name, then you can try something like this:
ssh hostname "pid=\$(ps aux | grep 'name' | awk '{print \$2}' | head -1); echo \$pid |xargs kill"
Use pkill -f to easily kill a process by matching its command-line.
ssh root#$center ssh root#$ip pkill -f "$target_dir/$main"
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Closed 2 years ago.
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The following command gives the expected result (file is created):
sshpass -p pas ssh root#host 'touch foo'
But the following one does nothing on the remote host:
sudo sshpass -p pas ssh root#host 'touch foo'
The only difference here is just sudo mode.
What is the reason here? And how this can be solved?
The problem is more visible when running ssh -v.
With sudo communication interrupts after detecting the server host key.
To solve the problem ssh needs to run with the following argument -o "StrictHostKeyChecking no".
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Closed 6 years ago.
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I am trying to schedule node server restart on OS reboot (Ubuntu 16.04 LTS). I wrote:
crontab -u username -e
then I added following line:
#reboot /usr/local/bin/forever start -c /usr/bin/node /home/username/node/bin/www
I get the success message after saving or updating this file. There seems to be no effect on server reboot.
I'd wrap that into a bash script in the user's home directory's bin.
/home/username/bin/start_my_node_app.sh
Then in your crontab...
#reboot /home/username/bin/start_my_node_app.sh >/dev/null 2>&1
Though according to this article, #reboot may not work for non-root users.
https://unix.stackexchange.com/questions/109804/crontabs-reboot-only-works-for-root
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Closed 7 years ago.
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I am trying to check whether the pmon process is running or not in CentOS and Oracle Linux over shell command. I used below command.
In CentOS :
ps -e | grep pmon;echo $?
Output
61577 ? 00:00:00 ora_pmon_orcl
0
But, in Oracle Linux:
ps -e | grep pmon;echo $?
Output
1
I am not able to understand why they behave differently.
Can I get a command which will work on both OS as below
1 output for process not running
0 output for process running
Edit: As suggested by Vatine and Dipak
Try running this
ps -ef|grep [p]mon|wc -l|awk '{if ($1 != 0) print "0"; else print "1";}'
It will return 1 if process is not running and 0 if it is running.
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Closed 7 years ago.
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I am use Ubuntu Linux, and when I run command netstat -lt, then show:
tcp 0 0 *:ftp *:* LISTEN
then I run command sudo service vsftpd stop, and run command netstat -lt again, the terminal will not show ftp server, but after a while, I am run command netstat -lt again, the terminal will show ftp server again:
tcp 0 0 *:ftp *:* LISTEN
How strange it is!
How can I stop ftp server?
You may have another ftpd service.
Try with this:
# ps -ef | grep ftpd
And search for ftpd daemons.
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Closed 9 years ago.
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when running
gcutil ssh myproject_name
ssh run with the following command
ssh -o UserKnownHostsFile=/dev/null -o CheckHostIP=no -o StrictHostKeyChecking=no -i /Users/MyUser/.ssh/google_compute_engine -A -p 22 MyUser#xxx.xxx.xxx.xxx
i've changed my ssh port to 1234 in sshd_config file and opened a firewall rule at my compute engine console. executing the following command works perfect and connection is established
ssh -o UserKnownHostsFile=/dev/null -o CheckHostIP=no -o StrictHostKeyChecking=no -i /Users/MyUser/.ssh/google_compute_engine -A -p 1234 MyUser#xxx.xxx.xxx.xxx
but when running this command gcutil ssh myproject_name port 22 is being called.
How & where can i change the default port of ssh so I wont have to use the long command in order to connect to my instance
gcutil supports alternate ports via the --ssh_port flag. In your case, this should work:
gcutil ssh --ssh_port 1234 INSTANCE_NAME