LinuxQuestions.org - Restart a service automatically

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Restart a service automatically

Hi all
I wanna know, is there a way to restart a service automatically when sth killed it's related process? E.G, consider that I wanna have my vsftpd always running, and if something stopped it, Linux start it again automatically.

Your best bet is to run a script that checks for the processes and put it in the crontab to run and check every few minutes (depending on the needs).

I'm thinking somewhere like "ps -e" and testing whether the service is active.

If you use Fedora, you can also use /sbin/service <servicename> status to show the status of the service.

There are different ways to do this, but I can't write the script for you right now, sorry. But I'm sure there are plenty of guys here who can ^^

If the service is controlled by xinetd, then another instance is started each time a new connection if made. Check how vsftp is run.

It may be started normally in runlevels 3 and 5 but have an /etc/xinetd.d/vsftpd configuration file as well.

If so, you could run "sudo /sbin/chkconfig vsftpd off" and then "sudo /sbin/chkconfig vsftpd xinetd".
The second entry will simply delete the "disable = yes" line which you could do yourself.

Code:

# default: off

# description:

#  The vsftpd FTP server serves FTP connections. It uses

#  normal, unencrypted usernames and passwords for authentication.

# vsftpd is designed to be secure.

#

# NOTE: This file contains the configuration for xinetd to start vsftpd.

#      the configuration file for vsftp itself is in /etc/vsftpd.conf

#

service ftp

{

        socket_type            = stream

        protocol                = tcp

        wait                    = no

        user                    = root

        server                  = /usr/sbin/vsftpd

#        server_args            =

#        log_on_success          += DURATION USERID

#        log_on_failure          += USERID

#        nice                    = 10

}