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Apple cms scheduled task Crontab sets Apple cms automatic update script

There are several ways to update the scheduled tasks of Apple CMS. If the Apple CMS is built in Windows, you can use the scheduled task update that comes with Windows. If it is a Linux operating system, you can set up scheduled update tasks on third-party platforms, or set up custom update tasks on third-party websites such as Alibaba Cloud and Tencent Cloud. The following introduces another way to use the crontab command in the Linux system to set up scheduled tasks to automatically update the website.

Enable EPEL repository on CentOS 8 and RHEL 8 servers

EPEL stands for “Extra Packages for Enterprise Linux”, which is a free and open source repository of additional packages available for CentOS and RHEL servers. As the name suggests, the EPEL repository provides additional packages that are not available in the default package repositories of CentOS 8 and RHEL 8.
In this article, we will demonstrate how to enable and use EPEL repository on CentOS 8 and RHEL 8 servers.

Apply for SSL certificate online for free

There are two types of SSL certificates, one is ECC certificate (built-in ECDSA public key), and the other is RSA certificate (built-in RSA public key). ECC is more secure than RSA of the same length, which means that under the same security conditions, the key length of ECC is much shorter than that of RSA, and encryption and decryption will be faster. The following is how to apply for a TSL/SSL certificate on a Linux server using the acme.sh script.

How to format USB disk and USB disk partition in Linux

How to format a USB flash drive and USB flash drive partition in Linux. It is very simple to format a USB flash drive in Windows. You can either right-click to format it or enter the hard disk partition to format it. What about Linux? In fact, formatting a USB flash drive in Linux is also very simple. It only takes a few commands to get it done. Let's take a detailed look at how to format a USB flash drive in Linux.

Error: Failed to download metadata for repository 'appstream'

CentOS-8 - AppStream Failed to download metadata for repo 'appstream' Error: Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
The Centos series of Linux systems are no longer available. The official has given up maintenance and the software repository cannot be downloaded. Let’s see the solution below.

How to solve nginx 504 gateway timeout

Nginx suddenly reports a 504 gateway timeout error. When using PHP to perform a large number of database queries, it occasionally reports a 504 gateway timeout error. Don't be afraid of encountering a 504 gateway timeout. Only individual operations will cause a 504 gateway timeout. Refresh the timeout page, or continue to connect to the database, but it's more troublesome. Let's take a look at how to solve the Nginx 504 gateway timeout problem.

How to Install and Enable EPEL on CentOS 9 Stream

EPEL, Extra Packages for Enterprise Linux, is an open source and free repository that provides additional packages for Enterprise Linux. The EPEL repository was created because Fedora contributors wanted to use the Fedora packages they maintain on RHEL and other compatible distributions such as CentOS, Rocky Linux, AlmaLinux, etc.