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_en 
Debian12.11_en Debian12.11 : SSH , UFW(Firewall)Setting
1. SSH Service Security SettingsThe SSH service allows the r...
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 : FTP Server , NTP Server
1. Install NTP serverSetting ReflectionOperation check2. Ins...
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 : Anti-virus(Clamav) , Mail Server
1. Antivirus software Clamav installedInstall Clam AntiVirus...
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 : MariaDB , WordPress Install
1. MariaDB1.1 InstallMariaDB version confirmation1.2 MariaDB...
Debian12.11_en Debian12.11 : Suricata + Elastic Stack + Kibana
Prerequisite.We will install Suricata IDS and ElasticStack a...
Debian12.11_en Debian12.11 : Nagios Server , Tripwire Install
Nagios Server installedNagios is an open source monitoring s...
Debian12.11_en Debian12.11 : Logwatch , Chkrootkit , Disk Usage Check Script
LogwatchLogwatch compiles various logs together and delivers...
Debian12.11_en Debian12.11 : System Backup & Restore
1. System Backup1.1 Backup under /var/www/html① Create backu...