Ubuntu25.04_en Ubuntu Server25.04 : Initial settings after OS installation
1. Set root password and use SU commandIn the default config...
2025-04
Ubuntu25.04_en Ubuntu25.04_en Ubuntu Server25.04 : SSH , Firewall(UFW)
1. SSH Service Security SettingsThe SSH service allows the r...
Ubuntu25.04_en Ubuntu Server25.04 : SSH connection with authentication using public key cryptography
Creation of public and private key pairsCreate a public/priv...
Ubuntu25.04_en Ubuntu Server25.04 : WEB Server(Apache)
Apache2Allow http:80 port and https:443 port in UFW first.1....
Ubuntu25.04_en Ubuntu Server25.04 : NTP , FTP(Vsftpd) , Samba Install
1. Install NTP serverConfiguration ReflectionConfirmation of...
Ubuntu25.04_en Ubuntu Server25.04 : Anti-Virus(Clamav) , Mail Server
1.Anti-virus software Clamav installed1.1 InstallThe clamav-...
Ubuntu25.04_en Ubuntu Server25.04 : Web server, Mail server SSL conversion (Let's Encrypt)
1. Obtain a certificate(Let's Encrypt)1.1 advance preparatio...
Ubuntu25.04_en Ubuntu Server25.04 : MySQL8 , WordPress Install
1. MySQL81. 1 InstallVersion Check1.2. Setting the root pass...
Ubuntu25.04_en Ubuntu Server25.04 : Suricata , SNORT3
SuricataSURICATA IDS/IPS is an open source IDS that monitors...
Debian11.11_en Debian11.11 : WEB Server(Apache2)
Web server Apache2 installationAllow http:80 and https:443 p...
Debian11.11_en Debian11.11 : Initialization
1. Installing and configuring the vim editorDebian has "nano...
Debian11.11_en Debian11.11 : SSH , Firewall Setting
1. SSH Service Security SettingsThe SSH service allows the r...
Debian11.11_en Debian11.11 : SSH connection using public key cryptography
RSA SSH connection with authentication using public key cryp...
Debian11.11_en Debian11.11 : NTP ,FTP Server Installation
1. Install NTP serverSetting ReflectionOperation check2. Ins...
Debian11.11_en Debian11.11 : Anti-virus(Clamav) , Mail Server
1. Antivirus software Clamav installedInstall Clam AntiVirus...
