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1. System Backup1.1 Backup under /var/www/html①　Create backup_all.sh script under /opt/script1.2 MariaDB database backup①Create db_backup.sh script under /opt/script# vi /opt/script/db_backup.shdb_backup.sh script contents2. System Restore2.1 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 MariaDB database①Save DB backup file to any directory and extract data# cd /var/www/backup/db_bak

1. System Backup1.1 Backup under /var/www/html①　Create backup_all.sh script under /opt/script1.2 MariaDB database backup①Create db_backup.sh script under /opt/script# vi /opt/script/db_backup.shdb_backup.sh script contents2. System Restore2.1 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 MariaDB database①Save DB backup file to any directory and extract data# cd /var/www/backup/db_bak

SuricataSURICATA IDS/IPS is an open source IDS that monitors communications on the network and detects suspicious traffic.The basic mechanism is signature-based, so it can detect predefined unauthorized communications. Suricata is also characterized by its ability to provide protection as well as detection. Logwatch,Chkrootkit,Disk Usage Check Script install

Open source integrated monitoring software "Nagios Server" installedNagios is an open source monitoring solution running on Linux.Nagios is designed to periodically check critical network, application, or server parameters.These parameters include microprocessor load, number of running processes, log files, disk and memory usage, as well as many other services such as SMTP (Simple Mail Transfer Protocol), HTTP (Hypertext Transfer Protocol), POP3 (Post Office Protocol 3), etc. can be checked.These parameters require a microprocessor load, a database such as PHP or MySQL to run Nagois, and a web server such as Apache or Nginx. We will proceed under the assumption that all of these have already been configured

1. MariaDB1.1 Install1.4. MariaDB Server Security SettingsMariaDB comes with a default security script, mariadb-secure-installation, which can be used to improve the security of your MariaDB installation, includingSet a password for the root account (if necessary).Disable remote root login to the database.Delete anonymous user accounts.Delete the test database to which anonymous users have access by default.2.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")

Web server Apache2 installationAllow http:80 and https:443 ports in UFW before installation3.  Apache2; Using Perl ScriptsEnable CGI to make Perl scripts available①Install Perl4 Apache2 : Using PHP Scripts①Install PHP5. Virtual Host SettingsCopy the default configuration file (file name is arbitrary, in this case vhost-yourdomain.conf as an example) and configure the virtual host6. Digest authentication with Apache2Since Basic Authentication, a well-known authentication authorization method for http, sends authentication information in plain text, there is a risk of ID and password leakage if the packet is intercepted.On the other hand, Digest Authentication encrypts and transmits authentication information, so there is almost no risk of information leakage.

1. Install a time synchronization service NTP server# apt -y install chrony# vi /etc/chrony/chrony.conf# Lines 20-23.：Comment the default settings and add the NTP server for your time zone.#pool ntp.ubuntu.com     iburst maxsources 4#pool 0.ubuntu.pool.ntp.org iburst maxsources 1#pool 1.ubuntu.pool.ntp.org iburst maxsources 1#pool 2.ubuntu.pool.ntp.org iburst maxsources 2