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I'm using systemctl to setup and run my serviced on a Linux Redhat. How can I check if a service is in running state?
I can use
systemctl is-active <service name>
to check if the service is is active or not. But I would like to check if the service is in the substate running.
systemctl status name.service
check this out
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/sect-managing_services_with_systemd-services
$ sudo service httpd status
OR you can check with list of services
$netstat -plnt
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Closed 4 years ago.
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I am using Ubuntu OS. When I do service --status-all then it lists all services running.
I would like to find RAM usage of the marked tomcat instances. How can I do so? Thanks!
run command top in your terminal you can see the PID and process-name and ram-usage and lots of more stuff
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Closed 5 years ago.
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I created Windows 2012 VM on azure. I did something wrong in server and suddenly behaving strange. I would like to restore server as it was a week before. Can you do that if yes how can we do it?
There is no way of doing it unless you've configured backup (or did a snapshot) for the VM. By default VM's are not backed up.
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Closed 6 years ago.
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Is there any way that i can find the most frequently applications used by a user in Linux? In Windows you can read this information from registry.
Make sure that accounting is turned on:
chkconfig psacct on && /etc/init.d/psacct start
...and then get summary info with sa. Look at examples here or here.
My own experience is that the most frequent command in the account is a shell.
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Closed 8 years ago.
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I'm working on a network with many Linux machines.
In one of them I have a file that I suspect was pushed by another machine.
The machines can access each other using ssh connections.
Is there anyway I can tell which machine pushed the file?
I tried looking for ssh logs but the /var/log/secure/ directory doesn't exist.
Depending on the distro and your logging settings, you may have some luck with /log/auth.
Try grep sshd /var/log/auth.log
Depends on your distro, you can check following files from your distro.
/var/log/secure
/var/log/auth.log
/var/log/syslog
/var/log/daemon.log
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Closed 9 years ago.
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I have some applications running on a remote CentOs server. I'd want them to restart in case of any unexpected server failures or shutdown or application crashes. Any suggestions on how could i achieve this ?
Just make them "respawn" in inittab. Init can maintain some processes as constantly running. Just set the process you need to continually run to have the action field type of "respawn".
See here.