Debian12.13_en Debian12.13 : WEB Server(Apache)
Web server Apache2 installationAllow http:80 port in UFW bef...
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Debian12.13_en 
Debian12.13_en Debian12.13 : Anti-virus(Clamav) , Mail Server
1. Antivirus software Clamav installedInstall Clam AntiVirus...
Debian12.13_en Debian12.13 : Let's Encrypt, WEB/Mail Server SSL
1. Obtain a certificate (Let's Encrypt)1.1 advance preparati...
Debian12.13_en Debian12.13 : MariaDB , WordPress Install
1. MariaDB1.1 InstallMariaDB version confirmation1.2 MariaDB...
Debian12.13_en Debian12.13 : Suricata + Elastic Stack + Kibana
PrerequisiteWe will install Suricata IDS and ElasticStack an...
Debian12.13_en Debian12.13 : Nagios Server , Tripwire Install
Nagios Server installedNagios is an open source monitoring s...
Debian12.13_en Debian12.13 : Logwatch , Chkrootkit , Disk Usage Check Script,DNS Update
LogwatchLogwatch compiles various logs together and delivers...
Debian12.13_en Debian12.13 : System Backup & Restore
1. System Backup1.1 Backup under /var/www/html① Create backu...
Debian12.11_en Debian12.11 : Logwatch , Chkrootkit , Disk Usage Check Script
LogwatchLogwatch compiles various logs together and delivers...
Ubuntu25.04_en Ubuntu Server25.04 : Tripwire , disk usage check script , Logwatch
TripwireImplement a system to detect file tampering on Linux...
Ubuntu25.04_en Ubuntu Server25.04 : Initial settings after OS installation
1. Set root password and use SU commandIn the default config...
Almalinux9.4_en AlmaLinux9.4 : OS Install , Various settings
1.AlmaLinux 9.4AlmaLinux 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 9.4 with a minor upgrade on May 4, 2024.1.1 AlmaLinux 9.4 DownloadFor the AlmaLinux 9.4 installation image, go to the following site and download "AlmaLinux-9.4-x86_64-dvd.iso".https://ftp.jaist.ac.jp/pub/Linux/almalinux/9.4/isos/x86_64/
Rocky Linux9.4_en Rocky Linux9.4 : SSL Certificate Acquisition( Let's Encrypt ) , Apache SSL , Mail SSL/TLS
1.Obtain an SSL certificate ( Let's Encrypt )Install the latest open ssl# dnf install openssl-devel1.1 advance preparation1.Package management system Snappy installedSince the SSL certificate issuing tool "certbot" of Let's Encrypt is recommended to be installed using "snap" after 2021, install Snapd first.(Can also be installed the traditional way with dnf or yum)2. Converting Apache to httpsInstall the following just in case# dnf -y install mod_ssl3. SSL/TLS (Let's Encrypt) settings on the mail server3.1 Obtaining a certificate for the mail serverObtain a certificate for the mail server, but it cannot be obtained in the same way as above, so the following with the "--standalone" option fails.
Slackware 15.0_en Slackware15.0 : Installing packages
Installing packagesSelect installation media and other insta...
OracleLinux10.1_en OracleLinux10.1 : OS Install , Initialization
OracleLinux10.1Oracle Linux provides a 100% application bina...
