Set centos To Enable Automatic startup

Install servers such as Apache and MySQL on centosProgramIt is not set to enable automatically after the boot. To avoid manual enabling of Web and other servers after the restart, you must set the settings as follows:ChkconfigCommand.

 

For example, to automatically start MySQL, Apache, and vsftpd services after the instance is started, run the following command:

 
Chkconfig mysqld onchkconfig httpd onchkconfig vsftpd on
 

 

To disable automatic startupOnChangeOffThat's all.

 
Chkconfig mysqld offchkconfig httpd offchkconfig vsftpd off
 

 

However, if a service has not been added to the chkconfig list-AddAdd the following parameters:

 
Chkconfig-add Postfix
 

 

To query all the automatically started services, enter:

 
Chkconfig-list
 

However, this shows that there are too many things and it looks dizzy. What if I only want to view the specified service? At this time, you only need to-List"And then add the service name. For example, to check whether the HTTPd service is automatically started, enter:

 
Chkconfig-list httpd
 

Output result at this time:

 
Httpd0: Off1: Off2: Off3: Off4: Off5: Off6: Off
 

At this time, 0 ~ If both are off, the HTTPd service will not be automatically started when the system starts. We enterChkconfig httpd onThen, check the output result again:

Httpd0: Off1: Off2: On3: On4: On5: On6: Off
 

2 ~ If all five are on, it indicates that it will be automatically started.

 

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