Click here for "Error Codes for Commercial Air Conditioners".(Japanese Version)

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Debian12.1_en

Debian12 ; OS Install

1.Debian12 OverviewIn this article, we will explain how to build a server with Debian, the basis of the user-friendly Linux distribution UBUNTU.The latest is Debian 12.0 (codenamed "bookworm"), released on June 10, 20232.Download Debian installation imageDebian12 download site  https://www.debian.org/Access the above official website and download "debian-12.0.0-amd64-netinst.iso." which is convenient for setup in an environment connected to the Internet.(Fits on a single CD)NETINST allows you to download and install the necessary packages from the Internet, so you can use a smaller installer than a full installer.Click through the following screens in order.
Debian12.5_en

Debian12.5 ; OS installation and initial setup

1.Debian12 Overview and Installation InstructionsIn this article, we will explain how to build a server with Debian, the basis of the user-friendly Linux distribution UBUNTU.The latest is Debian 12 (codenamed "bookworm") (released on June 10, 2023), a point-release version of Debian 12.5 (released on February 10, 2024) with bug fixes and security updates.1.1 Download Debian12.install imageDownload site for Debian12.  https://www.debian.org/Please access the above official website and download the latest "debian-12.5.0-amd64-netinst.iso." which is convenient for setup in an environment connected to the Internet. (It will fit on one CD.)
Almalinux8.6 Building a server

AlmaLinux 8.6 : OS Install

AlmaLinux 8.6  InstallAlmaLinux OS is a project launched by CloudLinux in the US as an alternative to CentOS.Currently, the AlmaLinux OS Foundation is the development parent organization.AlmaLinux OS 8.6 is a Linux distribution compatible with "Red Hat Enterprise Linux 8"
AlmaLinux8.8_en

AlmaLinux8.8 ; OS Install

AlmaLinux 8.8 InstallAlmaLinux OS is a project launched by US CloudLinux as an alternative to CentOS. Currently, the AlmaLinux OS Foundation is the development parent organization.This time we will install AlmaLinux 8.8, a minor upgrade on May 18, 2023.1.AlmaLinux 8.8 DownloadAlmaLinux 8.8 installation image can be downloaded from the following sitehttps://almalinux.org
Almalinux9.1_en

AlmaLinux 9.1 ; OS Install

AlmaLinux 9.0 InstallAlmaLinux OS is a project launched by CloudLinux in the US as an alternative to CentOS. Currently, the AlmaLinux OS Foundation is the development parent organization.Following the general availability of Red Hat Enterprise Linux 9.0, AlmaLinux 9.0 was released on May 26, 2022.Like Red Hat Enterprise Linux 9, AlmaLinux 9 utilizes the same package versions as the Linux 5.14 kernel, GCC 11, Python 3.9, and RHEL9.Cockpit web management interface, enhanced kernel live patching, improved container and cloud integration, OpenSSL 3, and other security improvements.
Almalinux9.2_en

AlmaLinux9.2 ; OS Install

AlmaLinux 9.2 InstallAlmaLinux OS is a project launched by CloudLinux in the US as an alternative to CentOS. Currently, the AlmaLinux OS Foundation is the development parent organization.Following the general availability of Red Hat Enterprise Linux 9.0, AlmaLinux 9.0 was released on May 26, 2022.Like Red Hat Enterprise Linux 9, AlmaLinux 9 utilizes the same package versions as the Linux 5.14 kernel, GCC 11, Python 3.9, and RHEL9.Cockpit web management interface, enhanced kernel live patching, improved container and cloud integration, OpenSSL 3, and other security improvements.This time we will install AlmaLinux 9.2 with a minor upgrade on May 11, 2023.
Almalinux9.3_en

AlmaLinux9.3 ; OS Install

AlmaLinux 9.3 InstallAlmaLinux OS is a project launched by CloudLinux in the US as an alternative to CentOS. Currently, the AlmaLinux OS Foundation is the development parent organization.Following the general availability of Red Hat Enterprise Linux 9.0, AlmaLinux 9.0 was released on May 26, 2022.Like Red Hat Enterprise Linux 9, AlmaLinux 9 utilizes the same package versions as the Linux 5.14 kernel, GCC 11, Python 3.9, and RHEL9.Cockpit web management interface, enhanced kernel live patching, improved container and cloud integration, OpenSSL 3, and other security improvements.This time we will install AlmaLinux 9.3 with a minor upgrade on Nov 11, 2023.1.AlmaLinux 9.3 DownloadAlmaLinux 9.3 installation image can be downloaded from the following sitehttps://almalinux.org
Rocky Linux8.6 Building a server

Rocky Linux8.6 : OS Install

Rocky Linux 8.6 Install1.DownloadRocky Linux 8 installation image can be downloaded from the following sitehttps://rockylinux.org/download
Rocly Linux8.8_en

RockyLinux8.8 ; OS Install

Rocky Linux Install1.Rocky Linux 8.8 DownloadRocky Linux 8.8 installation image can be downloaded from the following sitehttps://rockylinux.org/download2.Rocky Linux 8.8 InstallイInstall USB media Change BIOS settings to boot from USB media.2.1 Installation initial screenPress the [tab] key, enter "resolution=1024x768" and press the [Enter] key.This way, the right edge of the installation screen is displayed without being cut off.
Rocky Linux9.1_en

RockyLinux9.1 : OS Install

Rocky Linux9.0The Rocky Release Engineering team announced the latest version of Rocky Linux 9.0 on July 14, 2022.Rocky Linux is a Linux distribution compatible with Red Hat Enterprise Linux; Rocky Linux 9 is a compatible release with RHEL 9 released in May and will be supported until the end of May 2032.In security, password-based root user authentication via SSH is now disabled by default.SSH keys can be used to access remote systems instead of root passwords.OpenSSL supports version 3.0.1, enhanced support for HTTPS clients, and a new FIPS module.
Rocky Linux9.3_en

Rocky Linux9.3 ; OS Install

Rocky Linux9.3The Rocky Release Engineering team announced the latest version of Rocky Linux 9.0 on July 14, 2022.Rocky Linux is a Linux distribution compatible with Red Hat Enterprise Linux; Rocky Linux 9 is a compatible release with RHEL 9 released in May and will be supported until the end of May 2032.This time we will install Rocky Linux 9.3, released NOVEMBER 20, 2023.
FreeBSD14.1_en

FreeBSD14.1 ; Jail Install

JailIt is a mechanism that allows multiple virtual FreeBSD environments to be created on a FreeBSD environment.A jail is an extension of chroot, and a jail environment (called a prisoners) built on a host ring (called a jailer) behaves as a FreeBSD machine running separately from the host environment.The prisoner cannot directly attach to the jailer or another parallel prisoner.Features of JAIL・High speed operation because it is not emulation.・Each prisoner can be assigned an IP address different from that of the jailer.・Since the same file system is used for a jailer and a prisoner, it is necessary to be careful about the assignment of UID/GID.This time, build two prisoners (prisoner1 and prisoner2) in jailer (FreeBSD14.1)
Ubuntu24.04_en

Ubuntu24.04 ; Zabbix7 Install

Installation of open source integrated monitoring software "Zabbix7".Zabbix is an open source integrated monitoring software for centralized monitoring of servers, networks and applications. It provides monitoring, fault detection and notification functions required for integrated monitoring. With Zabbix agent and SNMP support for many platforms, you can monitor your entire system with a single Zabbix.To run Zabbix, you will need the PHP programming language, MySQL/MariaDB as a database server, and a web server such as Apache or Nginx.In this case, we will assume that all of the following conditions have already been configured.This time we will install Zabbix 7.0 LTS released on 06/04/2024 in the following environment.Apache/2.4.5810.11.8-MariaDBPHP 8.3.6PHP-fpm
Debian12.5_en

Debian12.x ; Zabbix7 Install

Installation of open source integrated monitoring software "Zabbix7".Zabbix is an open source integrated monitoring software for centralized monitoring of servers, networks and applications. It provides monitoring, fault detection and notification functions required for integrated monitoring. With Zabbix agent and SNMP support for many platforms, you can monitor your entire system with a single Zabbix.To run Zabbix, you will need the PHP programming language, MySQL/MariaDB as a database server, and a web server such as Apache or Nginx.In this case, we will assume that all of the following conditions have already been configured.This time we will install Zabbix 7.0 LTS released on 06/04/2024 in the following environment.Apache/2.4.59 (Debian)10.11.6-MariaDBPHP 8.2.20PHP-fpm
Almalinux9.3_en

AlmaLinux9.x ; Zabbix7 Install

Installation of open source integrated monitoring software "Zabbix7".Zabbix is an open source integrated monitoring software for centralized monitoring of servers, networks and applications. It provides monitoring, fault detection and notification functions required for integrated monitoring. With Zabbix agent and SNMP support for many platforms, you can monitor your entire system with a single Zabbix.To run Zabbix, you will need the PHP programming language, MySQL/MariaDB as a database server, and a web server such as Apache or Nginx.In this case, we will assume that all of the following conditions have already been configured.This time we will install Zabbix 7.0 LTS released on 06/04/2024 in the following environment.AlmaLinux9.4 IP(192.168.11.83)Apache/2.4.57 (AlmaLinux)mysql Ver 8.0.36PHP 8.3.8 (cli)PHP 8.3.8 (fpm-fcgi)