Linux system AutoFs automatic mount service installation and configuration

Preface

Whether it is Samba service or NFS service, the mounting information must be written to /etc/fstab, so that the remote shared resources will be automatically mounted when the server is started. Although this is convenient, if too many remote resources are mounted, it will put a heavy load on the network bandwidth and the server's hardware resources. If the resource is hanging

If the file is not used for a long time after downloading, it will also cause a waste of server hardware resources. Some readers may say, "You can execute the mount command to manually mount the file before each use." This is a good option, but you need to mount it every time before using it. Don’t you think it’s troublesome?

The autofs automatic mounting service can help us solve this problem. Unlike the mount command, the autofs service program is a Linux system daemon that automatically mounts a file system when it detects that a user is trying to access a file system that has not been mounted. In other words, after we fill in the mount information into the /etc/fstab file, the system

The system automatically mounts it every time it is turned on, while the autofs service program dynamically mounts it when the user needs to use the file system, thus saving network resources and server hardware resources.

The following content describes how to automatically mount the local image /dev/cdrom to the file system through the autofs service.

1. Install the service program

#Install the autofs service program yum install -y autofs  

2. Write the main configuration file

#Write the main configuration file /etc/auto.master
vim /etc/auto.maser

.....
# /media means the mount point is placed in this directory;
# /etc/iso.misc is a sub-configuration file, we need to write the mount information /media /etc/iso.misc    
.....

3. Write a sub-configuration file

#Write sub-configuration file /etc/iso.misc 
vim /etc/iso.misc

.......
#Fill in the configuration information in the configuration file# iso: mount point# -fstype=iso9600: mount file type# /dev/cdrom: the file to be mounted iso -fstype=iso9600 :/dev/cdrom
.......

4. This is the configuration. When our system wants to enter the mount point (/media/iso), the image file /dev/cdrom will be automatically mounted to this point.

df -h #Before entering the directory, check the mount information (no device is mounted to /media/iso)

cd /media/iso #Enter the mount point ls -l #View the mount content df -h #View the mount information (there is a device mounted to /media/iso)

The same formula is used to mount other devices.

PS: This chapter takes mounting the /dev/cdrom image file as an example, but if yum wants to use this image source, you also need to edit the yum configuration file. I won't introduce it here. If you are interested, please see my other article about configuring Yum local repository.

This is the end of this article about the installation and configuration of the AutoFs automatic mounting service in the Linux system. For more relevant content about the installation and configuration of AutoFs in Linux, please search for previous articles on 123WORDPRESS.COM or continue to browse the related articles below. I hope everyone will support 123WORDPRESS.COM in the future!