業務用エアコン関連の技術情報、エラーコード、環境問題対策に関する別サイト「エアコンの安全な修理・適切なフロン回収」

2025-07

Debian12.11_en

Debian12.11 : OS installation and initial configuration

1.Debian12In this article, we will explain how to build a se...
Debian12.11_en

Debian12.11 : Suricata + Elastic Stack + Kibana

Prerequisite.We will install Suricata IDS and ElasticStack a...
Debian12.11_en

Debian12.11 : Let's Encrypt, WEB/Mail Server SSL

1. Obtain a certificate (Let's Encrypt)1.1 advance preparati...
Debian12.11_en

Debian12.11 : SSH connection using public key cryptography

Create public and private key pairsCreate a public/private k...
Debian12.11_en

Debian12.11 : SSH , UFW(Firewall)Setting

1. SSH Service Security SettingsThe SSH service allows the r...
Debian12.11_en

Debian12.11 : FTP Server , NTP Server

1. Install NTP serverSetting ReflectionOperation check2. Ins...
Debian12.11_en

Debian12.11 : Anti-virus(Clamav) , Mail Server

1. Antivirus software Clamav installedInstall Clam AntiVirus...
Debian12.11_en

Debian12.11 : WEB Server(Apache) , Digest authentication

Web server Apache2 installationAllow http:80 port in UFW bef...
Debian12.11_en

Debian12.11 : MariaDB , WordPress Install

1. MariaDB1.1 InstallMariaDB version confirmation1.2 MariaDB...
OracleLinux10.0_en

OracleLinux10.0 : SSH Remote connection , Firewalld , NTP Server

1.Setting up a remote connection via SSHSSH is a service for...
OracleLinux10.0_en

OracleLinux10.0 : FTP Server , Samba FileServer

1.FTP Server1.1 Vsftpd Install1.2Vsftpd configurationSave vs...
OracleLinux10.0_en

OracleLinux10.0 : SSH connect with public key

SSH connection with authentication using public key  Creatio...
OracleLinux10.0_en

OracleLinux10.0 : WEB server ,PHP ,virtual host

1.Apache21.1 httpd InstallVersion Check1.2 Apache Configurat...
OracleLinux10.0_en

OracleLinux10.0 : Clamav(anti-virus) , Mail Server

Clamav(anti-virus)1.Clam AntiVirus Install2.Edit Clam AntiVi...
OracleLinux10.0_en

OracleLinux10.0 : SSL Certificate Acquisition( Let's Encrypt ) , WEB/Mail server SSL

1.SSL Certificate Acquisition ( Let's Encrypt )1.1  advance ...