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2022-11

Rocky Linux9.1_en

RockyLinux 9.1 ; SSH、firewalld 、NTP Server

1.Remote connection via SSHSSH is a service for connecting remotely to a server and is basically running immediately after the OS is installed, but the default settings are somewhat insecure.Here we will configure the default settings to increase the security of ssh connections.1.1 Edit SSH service configuration fileModify the configuration file to change the SSH service settings.The SSH service configuration file is "/etc/ssh/sshd_config".2.Firewall (firewalld) settingsThe firewall is set to firewalld as default and is enabled during OS installation.4.NTP ServerBuild an NTP server to synchronize the server time with Japan Standard Time
2022.11.08
Rocky Linux9.1_en
Almalinux9.1_en

AlmaLinux 9.1 ; SSH、Firewalld、NTP Server

1.SSH remote connectionSSH is a service for connecting remotely to a server and is basically running immediately after the OS is installed, but the default settings are somewhat insecure.Here we will configure the default settings to increase the security of ssh connections.1.1 SSH service configuration file changes2.How to set up a firewall (firewalld)In AlmaLinux, the firewall is set to firewalld by default and is enabled during OS installation.4.NTP ServerBuild an NTP server to synchronize the server time with Japan Standard Time
2022.11.23
Almalinux9.1_en
Almalinux9.1_en

AlmaLinux 9.1 ; Authenticated SSH connection with key pair

SSH connection with authentication using public key cryptographyCreate public and private key pairsCreate a public/private key pair for a user connecting to a Linux server using OpenSSH.Use ssh-keygen to create the key pair.The creation of a public/private key pair must be done as a user with remote login privileges.If you do not specify the destination and file name, id_ed25519 and id_eed25519.pub will be created in /home/(user name)/.ssh/. On the way, enter the password for the key.
2022.11.23
Almalinux9.1_en
Almalinux9.1_en

RHEL9.x compatible Linux : Zabbix6

Open source integrated monitoring software "Zabbix"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 as a database server, and a web server such as Apache or Nginx. In this article, we will assume that all of these have already been configured.SELinux must be set to permissive
2022.11.01
Almalinux9.1_enRocky Linux9.1_en
miracle9.0_en

MiracleLinux9.0 : OS Install

MiracleLinuxMIRACLE LINUX is a Japanese Linux distribution provided by Cybertrust Corporation.Miracle Linux (now Cybertrust), established by Oracle Japan and NEC in June 2000, began development of Oracle Database for business and enterprise use with the aim of ensuring stable operation.It has been based on RHEL since Version 2.0 released in May 2001, and has been a full RHEL clone since Version 6.0 released in January 2012, with the latest version being 8.4 as of December 2021.MIRACLE LINUX, the famous domestic RHEL clone, was initially a commercial OS with a paid license, but following the termination of CnetOS8, it was announced that it would be offered free of charge starting with the latest 8.4.The current distribution is Red Hat Enterprise Linux (RHEL) 9 compatible with the latest version 9.0 released on November 1, 2022.Like RHEL9, MIRACLE LINUX 9 is based on Linux kernel 5.14. In addition to version upgrades to major packages such as OpenSSL, MIRACLE LINUX 9 offers mainly enhanced security-related features such as improved SELinux performance and secure boot support.Package updates and security patches will be provided free of charge until November 2032.
2022.11.14
miracle9.0_en
miracle9.0_en

MIRACLE ZBX 6.0 Install

Integrated Monitoring Software "MIRACLE ZBX"MIRACLE ZBX, enterprise-oriented integrated system monitoring software based on the open source Zabbix, with enhancements and modifications provided by Cybertrust. It implements security enhancements that comply with some requirements of the National Institute of Standards and Technology (NIST) security guidelines "NIST SP800-171" and "NIST SP800-53", which are becoming an international standard for security standards.SELinux must be set to permissive
2022.11.18
miracle9.0_en
Almalinux9.1_en

RHEL9.x compatible Linux : Nagios Server

Nagios Server, open source integrated monitoring softwareNagios 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.SELinux must be set to permissive
2022.11.03
Almalinux9.1_enRocky Linux9.1_en