NTP / Chronyd → Time Synchronisation

• nano /etc/chrony.conf → edit conf
• systemctl start chronyd
• systemctl enable chronyd
• chronyc → interactive cmd

timedatectl → Change date/time

• timedatectl → check status
• timedatectl set-timezone Europe/Berlin
• timedatectl set-time YYYY-MM-DD
• timedatectl set-ntp true → set synchronisation

Mail Server → Postfix & s-nail

• /etc/postfix/main.cf → configuration

• systemctl restart postfix

• dnf install postfix → handle email server

• dnf install s-nail → write & send email

• nano /etc/postfix/main.cf

• mail -s "Mail setup" name@domain.com

  • return
  • body… → Ctrl+D