mailinabox/scripts/system.sh

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# Base system configuration.
sudo apt-get update
sudo apt-get -y upgrade
# Basic packages.
sudo apt-get -y install sqlite3
# Turn on basic services:
#
# ntp: keeps the system time correct
#
# fail2ban: scans log files for repeated failed login attempts and blocks the remote IP at the firewall
#
# These services don't need further configuration and are started immediately after installation.
sudo apt-get install -y ntp fail2ban
# Turn on the firewall. First allow incoming SSH, then turn on the firewall. Additional open
# ports will be set up in the scripts that set up those services.
sudo ufw allow ssh
sudo ufw allow domain
sudo ufw allow http
sudo ufw allow https
sudo ufw --force enable