RHEL5 automatically starts Network Services

RHEL5 automatically starts the network service-Linux Enterprise Application-Linux server application information. The following is a detailed description. If RHEL5 is installed, the ftp service is installed by default, and vsftpd is used for redhat. However, when the system starts, the ftp service is not started by default. vsftpd is executed every time. I checked the configuration for automatic start of the network service online: chkconfig

First chkconfig -- list

The output result is
Vsftpd 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Winbind 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Wpa_supplicant 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Xfs 0: off 1: off 2: on 3: on 4: on 5: on 6: off
Xinetd 0: off 1: off 2: off 3: on 4: on 5: on 6: off
Ypbind 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Yum-updatesd 0: off 1: off 2: off 3: on 4: on 5: on 6: off

We can see that vsftpd is off under all runlevels.

The next step is to open the vsftpd service.
Chkconfig -- level 35 vsftpd on

Let's take a look at the results.
Vsftpd 0: off 1: off 2: off 3: on 4: off 5: on 6: off
Winbind 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Wpa_supplicant 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Xfs 0: off 1: off 2: on 3: on 4: on 5: on 6: off
Xinetd 0: off 1: off 2: off 3: on 4: on 5: on 6: off
Ypbind 0: off 1: off 2: off 3: off 4: off 5: off 6: off
Yum-updatesd 0: off 1: off 2: off 3: on 4: on 5: on 6: off

Enabled

Try restarting the system. There is no problem!