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1.1 Backup under /var/www/html①　Create backup_all.sh script under /opt# vi /opt/backup_all.shbackup_all.sh script contents1.2 Mysql database backup①Create db_backup.sh script under /opt# vi /opt/db_backup.shdb_backup.sh script contents2.1 Restore backup files under HTML① Store HTML backup files used for backup in the "/ (root)" directorySelect the backup file with the latest timestamp (e.g. www_back_20220501.tar.gz)2.2 Restore MySQL database①Save DB backup file to any directory and extract data# cd /var/www/backup/db_bak

1. Introduce disk usage check script1.1 Scripting# cd /opt/script/# vi disk_capacity_check.shContents of disk_capacity_check.sh#!/bin/bash#Email Address for NotificationMAIL=" "2. Log analysis tool logwatch installed2.1 Install logwatch# apt -y install logwatch2.2 Edit logwatch configuration file①Copy the default configuration file

1.Install SNORTSnort is an open source network intrusion detection system capable of performing real-time traffic analysis and packet logging on IP networks.It can perform "protocol analysis," "content search," and "matching," and can be used to detect a variety of attacks, including "buffer overflows," "stealth port scans," "CGI attacks," "SMB probes," "OS fingerprinting attempts," "semantic URL attacks," and "server message block probes.

1. Install MySQL 81. 1 InstallThe MySQL team provides the official MySQL PPA for Debian Linux. After downloading and installing the package on your Debian system, the PPA file will be added to your system. To enable the PPA, run the following command2.Install WordPress2.1 Database CreationCreate a database for Word Press (for example, in this case, the database name is "wp_db", the user name is "wp_user", and the password is "?Y123456y")If you receive a message "Your password does not satisfy the current policy requirements" when creating an account, please make sure your password is at least 8 characters long and includes upper and lower case letters, numbers, symbols, etc.

1. Obtain a certificate (Let's Encrypt)1.1 advance preparation①Enable mod_ssl# a2enmod ssl②Install client tool to obtain Let's Encrypt certificate# apt -y install certbot

1. Antivirus software Clamav installedInstall Clam AntiVirus, a free anti-virus software for Linux, as an anti-virus measure.By installing this anti-virus software, you can not only scan the entire server for viruses, but also scan incoming and outgoing mail for viruses if you build and configure a mail server.

Web server Apache2 installationAllow http:80 and https:443 p...

1. Install NTP server# apt -y install chrony# vi /etc/chrony/chrony.conf# Line 8.：Comment the default settings and add the NTP server for your time zone.#pool 2.debian.pool.ntp.org iburstpool ntp.nict.jp iburst# Add to the last line (Range for which time synchronization is allowed)